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"heading": "MIN_RES" } ] }, { "layerId": 19, "layerName": "Chalk", "layerType": "Feature Layer", "minScale": 600000, "maxScale": 0, "legend": [ { "label": "Concealed higher purity chalk (93-98% CaCO3) where overburden does not exceed five metres: Cretaceous", "url": "627bc8582e4aded01a51c09692921652", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWMxsNJuERARcGCgAvjw5sMBFpBhkzc2W1PDwFz/WgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIww9vPhwAlbTUACCzAGw0EWrWka0yAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Concealed higher purity chalk (93-98% CaCO3) where overburden does not exceed five metres: Cretaceous" ] }, { "label": "Concealed lower purity chalk (<93% CaCO3) where overburden does not exceed five metres: Cretaceous", "url": "dd161c9b15977d6cc15b10eaf3ece682", "imageData": 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"imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNp7W9s4eBhc2CgAvjx5dcBFpBhbinm1tQwcNeckwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhj++/DoAKmmpAUBmAQAmKBNqqKYEegAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Higher purity chalk (93-98% CaCO3): Cretaceous, White Chalk Subgroup" ] }, { "label": "Lower purity chalk (<93% CaCO3): Cretaceous", "url": "39c1897e3b2500623d6aa83f4bf8ea74", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNRtZJu4RHhcGCgAvjy5scBFpBhRRsDrKlhYJ//BgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIwy9vfhwAlbTUACCzAHrWEa/vKGoTAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Lower purity chalk (<93% CaCO3): Cretaceous" ] }, { "label": "Lower purity chalk (<93% CaCO3): Cretaceous, Grey Chalk Subgroup", "url": "39c1897e3b2500623d6aa83f4bf8ea74", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNRtZJu4RHhcGCgAvjy5scBFpBhRRsDrKlhYJ//BgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIwy9vfhwAlbTUACCzAHrWEa/vKGoTAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Lower purity chalk (<93% CaCO3): Cretaceous, Grey Chalk Subgroup" ] } ], "legendGroups": [ { "id": "0", "heading": "MIN_RES" } ] }, { "layerId": 20, "layerName": "Brick.Clay", "layerType": "Feature Layer", "minScale": 600000, "maxScale": 0, "legend": [ { "label": "Lake deposits - Quaternary", "url": "ed847f99c7188634ec0ef51924d1b071", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWMxM9JuERYScGCgAnj77sMBFpBhy2e1WFPDwMi0GgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw7fvPhwAlbTUACCzAGV9EWkmNJ4LAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Lake deposits - Quaternary" ] }, { "label": "Common shale for brick - Carboniferous: Lower Limestone Formation", "url": "856afcef02b5a9e7cd37251d68d61cb0", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWPR07ZoEeITdmCgAnj36e0BFpBh/S1rrKlhYGFNCAMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1cESE4btPbw+ASlpqAJBZAE0sEW9utt1sAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Common shale for brick - Carboniferous: Lower Limestone Formation" ] }, { "label": "Common shale for brick coincident with areas of shallow coal", "url": "856afcef02b5a9e7cd37251d68d61cb0", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWPR07ZoEeITdmCgAnj36e0BFpBh/S1rrKlhYGFNCAMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1cESE4btPbw+ASlpqAJBZAE0sEW9utt1sAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Common shale for brick coincident with areas of shallow coal" ] }, { "label": "Brick clay: Triassic, Mercia Mudstone Group (principal brick clay resource Nottinghamshire, Leicestershire and Isle of Axholme, N. Lincolnshire only)", "url": "73a66d144a6dc8eccde6807278ada3d3", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPpiwgNFOLhcGCgAnj35ccBFpBhhnKyedQw8PyjxwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhu++/DgAKmmpAUBmAQAlYhN5fuXApAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Triassic, Mercia Mudstone Group (principal brick clay resource Nottinghamshire, Leicestershire and Isle of Axholme, N. Lincolnshire only)" ] }, { "label": "Brick clay: Quaternary, Brickearth (Faversham - Sittingbourne area, Kent and Southend areas only)", "url": "6316f5669edfc81f98e53e8edf1ad619", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPpK3EN5OfjcGCgAvj46ccBFpBhBhqSedQw8MKN5wwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhh8//TgAKmmpAUBmAQBrRBOBVXdMugAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Quaternary, Brickearth (Faversham - Sittingbourne area, Kent and Southend areas only)" ] }, { "label": "Brick clay: Quaternary, Reading Formation/Clay-with-flints (Chesham area, Bucks and Hemel Hempstead areas only)", "url": "6316f5669edfc81f98e53e8edf1ad619", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPpK3EN5OfjcGCgAvj46ccBFpBhBhqSedQw8MKN5wwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhh8//TgAKmmpAUBmAQBrRBOBVXdMugAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Quaternary, Reading Formation/Clay-with-flints (Chesham area, Bucks and Hemel Hempstead areas only)" ] }, { "label": "Brick Clay: Jurassic, Oxford Clay, Peterborough Member (underlying thin superficial deposits)", "url": "09bd55242b6c2edb230723e7def5ed6a", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNpZ1gbKMAg5sBABfCB4dUBFpBhegw2edQw8BLDEQYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIww8Mrw6ASlpqAJBZAKA6DnSSCctmAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick Clay: Jurassic, Oxford Clay, Peterborough Member (underlying thin superficial deposits)" ] }, { "label": "Brick Clay: Jurassic, Oxford Clay, Peterborough Member (no overlying superficial deposits)", "url": "09bd55242b6c2edb230723e7def5ed6a", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNpZ1gbKMAg5sBABfCB4dUBFpBhegw2edQw8BLDEQYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIww8Mrw6ASlpqAJBZAKA6DnSSCctmAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick Clay: Jurassic, Oxford Clay, Peterborough Member (no overlying superficial deposits)" ] }, { "label": "Brick clay: Devonian Slate (Plymouth area only)", "url": "5ae2ab24554e97c98ba292a5e16d3c62", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWPRNrNq4RUWdmCgAvj89u0BFpBhDcvWW1PDwIaoQAYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw89v3x4AlbTUACCzAIwwEWMtQuThAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Devonian Slate (Plymouth area only)" ] }, { "label": "Brick clay: Carboniferous, Alveley Member (extent shown in areas where the unit has been worked)", "url": "4042ee291e89092fb02cb0007dfbc8e9", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZW1ERKMbD48BABfDqy5cDLCDDbDQ186hh4JHr1xlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDF99+XIAVNJSA4DMAgDAMxOxbT0ZYQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Carboniferous, Alveley Member (extent shown in areas where the unit has been worked)" ] }, { "label": "Brick clay: Carboniferous, Crackington Formation (Exeter area only)", "url": "496864cc9f12a682c1e582ef4a305a6a", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZVVERKMTD48BABfDuy5cDLCDDrDU186hh4NHr1xlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDN99+XIAVNJSA4DMAgCVZhOzoG1PJAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Carboniferous, Crackington Formation (Exeter area only)" ] }, { "label": "Brick clay: Carboniferous, Ruabon (Etruria) Formation (Extent shown only where unit is not concealed by overburden)", "url": "496864cc9f12a682c1e582ef4a305a6a", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZVVERKMTD48BABfDuy5cDLCDDrDU186hh4NHr1xlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDN99+XIAVNJSA4DMAgCVZhOzoG1PJAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Carboniferous, Ruabon (Etruria) Formation (Extent shown only where unit is not concealed by overburden)" ] }, { "label": "Brick clay: Carboniferous, Etruria Formation (principal brick clay resource)", "url": "496864cc9f12a682c1e582ef4a305a6a", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZVVERKMTD48BABfDuy5cDLCDDrDU186hh4NHr1xlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDN99+XIAVNJSA4DMAgCVZhOzoG1PJAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Carboniferous, Etruria Formation (principal brick clay resource)" ] }, { "label": "Brick clay: Carboniferous, Coal Measures mudstones (coincident with shallow coal)", "url": "496864cc9f12a682c1e582ef4a305a6a", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZVVERKMTD48BABfDuy5cDLCDDrDU186hh4NHr1xlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDN99+XIAVNJSA4DMAgCVZhOzoG1PJAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Carboniferous, Coal Measures mudstones (coincident with shallow coal)" ] }, { "label": "Brick clay: Cretaceous, Wadhurst Clay Formation", "url": "6c429ac4197a858a5f5deacacb55af30", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOZ27g2UFRQzIGBCuD1+1cHWECGmenY5FHDwFNXjjCwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGL5+/+oAqKSlBgCZBQA2PhPBvRmxaQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Cretaceous, Wadhurst Clay Formation" ] }, { "label": "Brick clay: Cretaceous, Weald Clay Formation", "url": "59ece38a21c815030c4066be0c21a2a1", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOprq4O5OHhcWCgAvjy5csBFpBh2traedQw8OrVqwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhl++fDkAKmmpAUBmAQBudROciwAEDwAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Cretaceous, Weald Clay Formation" ] }, { "label": "Brick clay: Palaeogene, Reading Formation (Hants only)", "url": "be00c23a9088231fcd56b3f58c070110", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOpNlsbyMMm5sBABfDl16sDLCDDtIVt8qhh4NW3RxhYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDL/8enUAVNJSA4DMAgAOOROMTUvXswAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Palaeogene, Reading Formation (Hants only)" ] }, { "label": "Brick clay: Quaternary, Norwich Crag Formation, Chillesford Clay", "url": "1356f561f91124ad3c3705faf7869f74", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOZMiU7UECAz4GBCuDDh08HWECGGRur5lHDwLNnbzOwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGH748OkAqKSlBgCZBQCBCROqjGPRtwAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Quaternary, Norwich Crag Formation, Chillesford Clay" ] }, { "label": "Brick clay: Quaternary, glaciolacustrine deposits (clay and silt)", "url": "f4242fb307d56ce8670f599f181bf6a9", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZWzElUIxH0IGBCuDVl/cHWECG2Wia5FHDwCPXzzCwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGL768v4AqKSlBgCZBQCO4BO9CqsiWQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Quaternary, glaciolacustrine deposits (clay and silt)" ] }, { "label": "Brick clay: Quaternary, interglacial lake clay (Colchester area only)", "url": "a70572c7fcd9db3b42ca22b6a6154c62", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPJbpwSyMcr4MBABfDp84cDLCDDVHWN86hh4O3LZxlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDD99/nAAVNJSA4DMAgD23xOgf0i5ZQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Quaternary, interglacial lake clay (Colchester area only)" ] }, { "label": "Brick clay: Recent, alluvium/Tidal Flat deposits (in areas of workings only)", "url": "9f37a7f9996d95b9708ff3646150bc5d", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNZ284QKCbA4MBABfDqA8MBFpBhNgYMedQw8MgFBgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw1cfGA6ASlpqAJBZAKWhDnIS2IvmAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay: Recent, alluvium/Tidal Flat deposits (in areas of workings only)" ] }, { "label": "Brick clay", "url": "71641a4a8ac665dfe55806e0956ba87b", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWOx0lRvEeHjcWCgAnjz6csBFpBhG6tLralhoH9rNwMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1cESE4ZtPXw6ASlpqAJBZAAMwEYuGiyNmAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Brick clay" ] }, { "label": "Brick clay beneath overburden less then five metres", "url": "1dd2fe8fb692745b5e58753728210767", "imageData": 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"contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Fireclay: Carboniferous, Coal Measures (coincident with shallow coal)" ] }, { "label": "Fireclay: Carboniferous, Pottery Clays Formation (principal resource)", "url": "0faa3c5ceb779759c92890e0b8072314", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZu9Y1UEyMw4GBCuDVqx8HWECG2dhI5lHDwCNHnjOwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGL569eMAqKSlBgCZBQDwtxOqiSMzZgAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Fireclay: Carboniferous, Pottery Clays Formation (principal resource)" ] } ], "legendGroups": [ { "id": "0", "heading": "MIN_RES" } ] }, { "layerId": 23, "layerName": "Igneous.Rock", "layerType": "Feature Layer", "minScale": 600000, "maxScale": 0, "legend": [ { "label": "Felsite dykes", "url": "7dc9cf6c25f8f6877480f4b55e9a7b99", "imageData": 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"iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWNhKIkOZODhdGCgBvjy/QAL2DANhTyqGHjjAQMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1cGSE4ZfvB0AlLVXAl+8HALeSDkIZ6k2ZAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Charnian (minor intrusives & volcanics)" ] }, { "label": "Intrusive rocks: acid and intermediate rocks - mainly granitic and diorites", "url": "8051e4d0fcf0a05af53263f25fa240a1", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNZy8AQKMbA4MBABfCKgeEAC8gwGwaGPGoYeISBgYGFgcqAZdRAigEL5UagglEDKQcsVDADBYwaOCLC8BUDwwFQSUsNADILAJiTCSv6aGErAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Intrusive rocks: acid and intermediate rocks - mainly granitic and diorites" ] }, { "label": "Thermally altered (hornfels) rocks", "url": "1edd696fd220215c085eb692c0cfb5b0", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZuHBtoIiImAMDFcCbN68OsIAMs7CwyaOGgSdOHGFgYaAyYBk1kGLAQrkRqGDUQMoBCxXMQAGjBo6IMHzz5tUBUElLDQAyCwAlnBPVFh3u5wAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Thermally altered (hornfels) rocks" ] }, { "label": "Extrusive (lavas, tuff and volcanic ash)", "url": "219bd0838af55cf284874816d4ce0d8b", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZKxwRKMbE5cBABfDq37cDLCDDbFjl8qhh4JHfjxhYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDF/9+3YAVNJSA4DMAgAweBNn2EChawAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Extrusive (lavas, tuff and volcanic ash)" ] }, { "label": "Intrusive rocks: basic rocks - mainly gabbro and dolerite", "url": "25092b5ba57500bbb20cf462e7ff8bce", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPx918byMkp5sBABfD9+6sDLCDDpKVt8qhh4NOnRxhYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDL9/f3UAVNJSA4DMAgCWExOBecv0gAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Intrusive rocks: basic rocks - mainly gabbro and dolerite" ] }, { "label": "Volcanic (extrusive) rocks: Borrowdale Volcanic Group - mainly andesite, tuff and volcanic sandstone", "url": "1ed6e6b4d43d9e63917de6f56a3682b6", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNZy2AZKMbA4cBABfCK4ccBFpBhNgzCedQw8AjDWwYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw1cMPw6ASlpqAJBZAIQIDkkPT99RAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Volcanic (extrusive) rocks: Borrowdale Volcanic Group - mainly andesite, tuff and volcanic sandstone" ] }, { "label": "Stockingford Shale (host for diorite in Warwickshire)", "url": "3c8fbf763131b073b714e405a2a498f4", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWNhYFgbyMAg5sBAFfDqAAvEMJs86hh4hIGFgcqAZdRAigEL5UagglEDKQcsVDADBYwaOELC8NUBUElLHfDqAACN3QkrTpimDAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Stockingford Shale (host for diorite in Warwickshire)" ] }, { "label": "Alkali Dolerite", "url": "8051e4d0fcf0a05af53263f25fa240a1", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNZy8AQKMbA4MBABfCKgeEAC8gwGwaGPGoYeISBgYGFgcqAZdRAigEL5UagglEDKQcsVDADBYwaOCLC8BUDwwFQSUsNADILAJiTCSv6aGErAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Alkali Dolerite" ] }, { "label": "Diorites hosted by Stockingford Shale", "url": "3c8fbf763131b073b714e405a2a498f4", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWNhYFgbyMAg5sBAFfDqAAvEMJs86hh4hIGFgcqAZdRAigEL5UagglEDKQcsVDADBYwaOELC8NUBUElLHfDqAACN3QkrTpimDAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Diorites hosted by Stockingford Shale" ] }, { "label": "Dolerite (Whin Sill)", "url": "649565a27ac9f68d1f8c4c78a58136f3", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWPxZ4gI5GTgcWCgAvjO8OUAC8gwaQa5PGoY+JThEQMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1cESE4XeGLwdAJS01AMgsAMAPDikc8bZoAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Dolerite (Whin Sill)" ] }, { "label": "Granite", "url": "fc659b07f7b0d5ff0be055b67cd8fc89", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPpc80I5Ofgc2CgAvj449MBFpBhBpLKedQw8MLzuwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhh9/fDoAKmmpAUBmAQAfaBN63k4wcwAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Granite" ] }, { "label": "Granite-diorite, Malvern Complex", "url": "8051e4d0fcf0a05af53263f25fa240a1", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNZy8AQKMbA4MBABfCKgeEAC8gwGwaGPGoYeISBgYGFgcqAZdRAigEL5UagglEDKQcsVDADBYwaOCLC8BUDwwFQSUsNADILAJiTCSv6aGErAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Granite-diorite, Malvern Complex" ] }, { "label": "Igneous intrusive, Dolerite", "url": "25092b5ba57500bbb20cf462e7ff8bce", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPx918byMkp5sBABfD9+6sDLCDDpKVt8qhh4NOnRxhYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDL9/f3UAVNJSA4DMAgCWExOBecv0gAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Igneous intrusive, Dolerite" ] }, { "label": "Intrusive and volcanic rocks, Precambrian / Cambrian", "url": "8051e4d0fcf0a05af53263f25fa240a1", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNZy8AQKMbA4MBABfCKgeEAC8gwGwaGPGoYeISBgYGFgcqAZdRAigEL5UagglEDKQcsVDADBYwaOCLC8BUDwwFQSUsNADILAJiTCSv6aGErAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Intrusive and volcanic rocks, Precambrian / Cambrian" ] }, { "label": "Mafic igneous rock (intrusive and extrusive)", "url": "319424cac41a91a3700e8405b91f0283", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWNhMCsJZGDjcWCgBvj15QAL2DBBjTyqGPj+BgMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1cGSE4a8vB0AlLVXAry8HALvjDi9zSCRRAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Mafic igneous rock (intrusive and extrusive)" ] }, { "label": "Minor intrusives, Ercall granophyre", "url": "de9998da6a30cc1ec25186deac573630", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4jWNhmFsSyCDM48BADfD2ywEWsGFmmnlUMfDUdQYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4MgIw7dfDoBKWqqAt18OAACUKA5jfULTYQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Minor intrusives, Ercall granophyre" ] }, { "label": "Minor intrusives, porphyritic felsite", "url": "19b675e6d09600508d7c7fb7c738032b", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPxXzs9kFNMxIGBCuD7qzcHWECGSduY5FHDwKdHzjCwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGH5/9eYAqKSlBgCZBQCenxOlRkx4IAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Minor intrusives, porphyritic felsite" ] }, { "label": "Olivine-Dolerite sills and felsic intrusions", "url": "520bfdc9e789c4d81d4c7a29fedfacdf", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOxEpZtEWHncmCgAnjz89sBFpBhG60iralhoP+x5QwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhm9+fjsAKmmpAUBmAQAENRHRXNrJ6wAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Olivine-Dolerite sills and felsic intrusions" ] }, { "label": "Other igneous rocks, including basalts, trachytes, andesites, dolerites and associated intrusions", "url": "50d6245776dadb77c4f3c8701daefa51", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWPRU5Rt4eflcmCgAvj4+dsBFpBhPWmR1tQwsGTWcgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw4+fvx0AlbTUACCzABbZEcsfgh8VAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Other igneous rocks, including basalts, trachytes, andesites, dolerites and associated intrusions" ] }, { "label": "Quartz-Dolerite sills and dykes (Midland Valley Sill-Complex)", "url": "26c204db7d29a00e58c0a75812522449", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOxEhduEWHncGCgAnjz88cBFpBhG11trKlhoP/uIwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhm9+/jgAKmmpAUBmAQDSbRHfu3kdFQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Quartz-Dolerite sills and dykes (Midland Valley Sill-Complex)" ] }, { "label": "Ultramafic rock", "url": "73af2bba3093a58e4436322dfb3cb516", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZHloXKMzB68BABfD2x+cDLCDDrGW186hh4NHHVxlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDN/++HwAVNJSA4DMAgC/QBOfs0yg9AAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Ultramafic rock" ] }, { "label": "Dolerite intrusions with potential for high specification aggregate", "url": "7c85f204904d837bd7ac2d1f105a1d39", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWPR4zFo4WcVdGCgAvj4+/0BFpBhvapTralhYPHtbAYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw4+/3x8AlbTUACCzAAR5Ec4zRnwcAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Dolerite intrusions with potential for high specification aggregate" ] }, { "label": "Other igneous rocks including basalts, felsites, gabbros, tuffs and granites", "url": "7a5fbfe6d14bffafcbde46d8cbbf036e", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWMxYWBoEWJgcGCgAnjHwHCABWTYAgYGa2oYmMDAwMDCQGXAMmogxYCFciNQwaiBlAMWKpiBAkYNHBFh+I6B4QCopKUGAJkFAJKyCFKK8ZVmAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Other igneous rocks including basalts, felsites, gabbros, tuffs and granites" ] } ], "legendGroups": [ { "id": "0", "heading": "MIN_RES" } ] }, { "layerId": 24, "layerName": "Limestone", "layerType": "Feature Layer", "minScale": 600000, "maxScale": 0, "legend": [ { "label": "Dolomite and dolomitic limestone: Carboniferous", "url": "fa40cab53fb5d5437bb389640065bbd0", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWMJLckI5OLhc2CgAvj25dMBFpBhchrKedQw8NGNuwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERht++fDoAKmmpAUBmAQDaFRN0OUZqpgAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Dolomite and dolomitic limestone: Carboniferous" ] }, { "label": "Dolomite and dolomitic limestone: Permian, Cadeby and Brotherton formations (Magnesian Limestone)", "url": "34283f23227e8c2c89903f45a9d98f68", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWMpXB4ayCfM4cBABfDp7Y8DLCDD1Kxl86hh4K2jjxlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDD+9/XEAVNJSA4DMAgBzFhOWSr5MHgAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Dolomite and dolomitic limestone: Permian, Cadeby and Brotherton formations (Magnesian Limestone)" ] }, { "label": "Dolomite and dolomitic limestone: Permian, Lower Magnesian Limestone", "url": "70c0704ddd8cdd805879387131955eba", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWMpWcsQyCfG4MBABfDpFcMBFpBhGjYMedQw8MYRBgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw0+vGA6ASlpqAJBZACGYDmluIO3OAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Dolomite and dolomitic limestone: Permian, Lower Magnesian Limestone" ] }, { "label": "Dolomite and dolomitic limestone: Permian, Middle Magnesian Limestone", "url": "03839f3b548e8260f8d6d0a14efa7179", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPpW+sfKCTG6cBABfDu1fcDLCDDDG2k86hh4PkjTxlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDN+9+n4AVNJSA4DMAgBaHBOh5yQ0HAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Dolomite and dolomitic limestone: Permian, Middle Magnesian Limestone" ] }, { "label": "Dolomite and dolomitic limestone: Permian, Upper Magnesian Limestone", "url": "a272c5912d2062fbb34061b847e17f57", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZuLYxUFBM0IGBCuD9q/cHWECGmdvo5FHDwJNHrjCwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGL5/9f4AqKSlBgCZBQA3xRPIlTTU2AAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Dolomite and dolomitic limestone: Permian, Upper Magnesian Limestone" ] }, { "label": "Ironstone: Jurassic, Marlstone Rock Formation", "url": "939a3dffa82ec0b285f49bc843dcb410", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNJ1TcK5GFjdWCgAvjy6/cBFpBhygICedQw8O6HDwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhl9+/T4AKmmpAUBmAQDorBM8ospESQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Ironstone: Jurassic, Marlstone Rock Formation" ] }, { "label": "Ironstone: Jurassic, Northampton Sand Formation", "url": "939a3dffa82ec0b285f49bc843dcb410", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNJ1TcK5GFjdWCgAvjy6/cBFpBhygICedQw8O6HDwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhl9+/T4AKmmpAUBmAQDorBM8ospESQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Ironstone: Jurassic, Northampton Sand Formation" ] }, { "label": "Limestone - Carboniferous: Lower and Upper Limestone formations", "url": "e7eb6a70c95867e6784f4ce2a106cb4e", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNRtrJq4RYRcWCgAvj65s0BFpBhGRs3WlPDwBn+/gwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhl/fvDkAKmmpAUBmAQBzHhFqnXoOdQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone - Carboniferous: Lower and Upper Limestone formations" ] }, { "label": "Limestone with interbedded mudstone: Silurian (and some Carboniferous)", "url": "89771febd1df24de6279074d0416df6a", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4jWNhcF0byMAu5sBADfDz1QEWsGHiNnlUMfDlEQYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4MgIw5+vDoBKWqqAn68OAADERQ5SHbRHGgAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone with interbedded mudstone: Silurian (and some Carboniferous)" ] }, { "label": "Limestone: Carboniferous", "url": "0b5937698f4b4547111033bd1fd7f5a1", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNpWTs3kE9M1IGBCuDTq9cHWECG6dqY5VHDwMtHTjGwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGH569foAqKSlBgCZBQA3TBPGUxdC1wAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Carboniferous" ] }, { "label": "Limestone: Carboniferous, concealed (inferred extent)", "url": "b31ec21d26025a41d137cd49960d9f6c", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAx0lEQVQ4jd2VzQ2DMAyFn4OXQB0GWKKIaQrTVHQJwjCIKRpXMT8HQLQHq6r6nazIcuz42WE8xg4iObYQeVzTQu12qAG64YhABarULz4MCT3I7R3j+faCM8hlEAGjvNR4xyc+M6ypBuc1bQNY3yZBBsAqoC1sFumJBk56u4CV9sD/cMntUEctsirdAlJh52ylvwXGfZzm2EzYTrp5Tv9d2DJtLbuA5bSRvlBy7HqC4+0c5zWq4cSHd5vYhRxC+y9BoWY1j74NAC8WS0KB7ps0LAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Carboniferous, concealed (inferred extent)" ] }, { "label": "Limestone: Carboniferous, high purity (>97% CaCO3)", "url": "97c79a13c496fef102fdcd8cd8992c56", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4jWNhaF8byCAg5sBADfDh1QEWsGF6NnlUMfDSEQYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4MgIww+vDoBKWqqAD68OAACa8Q50RjCB4gAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Carboniferous, high purity (>97% CaCO3)" ] }, { "label": "Limestone: Carboniferous, very high purity (>98% CaCO3)", "url": "97c79a13c496fef102fdcd8cd8992c56", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4jWNhaF8byCAg5sBADfDh1QEWsGF6NnlUMfDSEQYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4MgIww+vDoBKWqqAD68OAACa8Q50RjCB4gAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Carboniferous, very high purity (>98% CaCO3)" ] }, { "label": "Limestone: Cretaceous, Hythe Formation (Kentish Rag)", "url": "548fe92420602371d7fbdc0d651c4ef3", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4jWNh8FkbyMAl5sBADfDt1QEWsGFSNnlUMfDZEQYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4MgIw2+vDoBKWqqAb68OAAACbg5TYAkKawAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Cretaceous, Hythe Formation (Kentish Rag)" ] }, { "label": "Limestone: Devonian", "url": "a9c8b85baa2f819e8787896fc36a9a01", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNpnLg2UJBfzIGBCuD9x1cHWECG6RjZ5FHDwCvnjjCwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGL7/+OoAqKSlBgCZBQDGixO/OzFgYAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Devonian" ] }, { "label": "Limestone: Jurassic", "url": "ca68ae3e0fa06d340982b533fa7e589b", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOp7s4I5BHic2CgAvjy7tMBFpBh2vrKedQw8OrFuwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhl/efToAKmmpAUBmAQCLUBOVimpJuAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Jurassic" ] }, { "label": "Limestone: Jurassic, Blue Lias Formation (eastern extent inferred)", "url": "6f052b004f02cc913f1a7472aa05b74f", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPxr14byMkj5sBABfD9y6sDLCDDpLVt8qhh4NOrRxhYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDL9/eXUAVNJSA4DMAgC97xOa755jOQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Jurassic, Blue Lias Formation (eastern extent inferred)" ] }, { "label": "Limestone: Jurassic, Lincolnshire Limestone / Malton Oolite (in N.Yorks)", "url": "992ac65dd31eaed311c0876272697b89", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOpnpIdyCfA58BABfDpw6cDLCDDtI1V86hh4NWztxlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDD99+HQAVNJSA4DMAgDXExObnrtGYQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Jurassic, Lincolnshire Limestone / Malton Oolite (in N.Yorks)" ] }, { "label": "Limestone: Jurassic, Portland Stone Formation and Todber Freestone", "url": "56eb5adf5f22d04ce1f6c4e8f4020f24", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOJCOoO5OIUcmCgAvj2/d0BFpBhcrL6edQw8NHjiwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERht++vzsAKmmpAUBmAQD5QRN2QOS3GgAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Jurassic, Portland Stone Formation and Todber Freestone" ] }, { "label": "Limestone: Jurassic, Purbeck Group", "url": "548fe92420602371d7fbdc0d651c4ef3", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4jWNh8FkbyMAl5sBADfDt1QEWsGFSNnlUMfDZEQYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4MgIw2+vDoBKWqqAb68OAAACbg5TYAkKawAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Jurassic, Purbeck Group" ] }, { "label": "Limestone: Oligocene, Bembridge Limestone Formation", "url": "6f052b004f02cc913f1a7472aa05b74f", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPxr14byMkj5sBABfD9y6sDLCDDpLVt8qhh4NOrRxhYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDL9/eXUAVNJSA4DMAgC97xOa755jOQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Oligocene, Bembridge Limestone Formation" ] }, { "label": "Limestone: Other", "url": "9d7f7f9223906e8528cac2f68506ac50", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWMxsbJqERIRcWCgAnj35s0BFpBh8zdutKaGgYn+/gwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhu/evDkAKmmpAUBmAQAHjhE9gRS8MAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Limestone: Other" ] } ], "legendGroups": [ { "id": "0", "heading": "MIN_RES" } ] }, { "layerId": 25, "layerName": "Sandstone", "layerType": "Feature Layer", "minScale": 600000, "maxScale": 0, "legend": [ { "label": "Sandstone with potential for high specification aggregate: Ordovician and Silurian, Kirkby Moor Formation, Coniston Group and Wray Castle Formation", "url": "5e0279028b56e6710a71b24c00bc6a43", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWORNhNu4RZmd2CgAvj69ucBFpBhIUusrKlh4JqYYwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhl/f/jwAKmmpAUBmAQDenxHdirM7EwAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Sandstone with potential for high specification aggregate: Ordovician and Silurian, Kirkby Moor Formation, Coniston Group and Wray Castle Formation" ] }, { "label": "Greywacke sandstone - Ordivician and Silurian", "url": "ffb2b7aa1b121d909be7791050025deb", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWOx0pNtERHgcmCgAnjz4dsBFpBhG/siralhoH/RcgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIwzcfvh0AlbTUACCzAOOOEY+R5frSAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Greywacke sandstone - Ordivician and Silurian" ] }, { "label": "Sandstone: Cambrian, Ordovician Quartzites", "url": "6c5eaf869d056a652b5e0e79b413eb85", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPJSzUL5Odic2CgAvj47dcBFpBhakqCedQw8Na99wwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhh+//ToAKmmpAUBmAQC/txNh7XpkCQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Sandstone: Cambrian, Ordovician Quartzites" ] }, { "label": "Sandstone: Carboniferous, Cromhall Formation and Grovesend Formation", "url": "f983b0e578bada117799b54211ca3713", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOJs9cP5GFjc2CgAvjy69cBFpBh8qL8edQw8OHrjwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhl9+/ToAKmmpAUBmAQAUnhNBvDxzaQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Sandstone: Carboniferous, Cromhall Formation and Grovesend Formation" ] }, { "label": "Sandstone: Carboniferous, Millstone Grit and Coal Measures", "url": "68d784e3e1ad8dd04eef79a89f6cf9e2", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOpqLAM5OHhcGCgAvjy5ccBFpBhmprCedQw8Pr1twwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhl++/DgAKmmpAUBmAQCP5BN0WdrhcQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Sandstone: Carboniferous, Millstone Grit and Coal Measures" ] }, { "label": "Sandstone: Carboniferous, Pennant Sandstone Formation", "url": "1bed84ee90396ef4078634251edd9f7e", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWORFmRo4WBjcGCgAvjxi+EAC8iwAFMGa2oYuOE0AwMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1cESE4Y9fDAdAJS01AMgsAKGMDWmnxs0lAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Sandstone: Carboniferous, Pennant Sandstone Formation" ] }, { "label": "Sandstone: Devonian and Carboniferous sandstone-bearing strata", "url": "75e979d8f0493c0409ae6231120060a5", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZ6yMWKMbF4sBABfDq258DLCDDbKTY86hh4JFnDAwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhq++/TkAKmmpAUBmAQAvRxFs6jhXsQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Sandstone: Devonian and Carboniferous sandstone-bearing strata" ] }, { "label": "Sandstone: Lower Cretaceous, Carstone Formation", "url": "3e59c89f1f1cdbec80a53f798788a951", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWOxstJuERERcGCgAnjz5sMBFpBhGze2WFPDQH//GgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIwzdvPhwAlbTUACCzAMLQEVHP1LgqAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Sandstone: Lower Cretaceous, Carstone Formation" ] }, { "label": "Sandstone: Pre-Cambrian, Ordovician, Silurian Greywacke", "url": "efbee4416d2bcf492299853e42dd6272", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWOZ3s4QKMDH4MBABfDhE8MBFpBhJvoMedQw8MxFBgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIww+fGA6ASlpqAJBZAOrhDm0uyYjZAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Sandstone: Pre-Cambrian, Ordovician, Silurian Greywacke" ] }, { "label": "Sandstone: Triassic, Sherwood Sandstone (Building stone)", "url": "402c632899c54c3d8519514f56005304", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWOpK2QIFOBjcGCgAvjwieEAC8gwHXWGPGoYeOUmAwMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1cESE4YdPDAdAJS01AMgsAMHjDk5UuJD9AAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Sandstone: Triassic, Sherwood Sandstone (Building stone)" ] }, { "label": "Sandstone with potential for high specification aggregate", "url": "5e0279028b56e6710a71b24c00bc6a43", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWORNhNu4RZmd2CgAvj69ucBFpBhIUusrKlh4JqYYwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhl/f/jwAKmmpAUBmAQDenxHdirM7EwAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Sandstone with potential for high specification aggregate" ] }, { "label": "Interbedded sandstones and mudstones (only on GIS)", "url": "004e31527b568fc53805b04485fd7236", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWPRs5BuERDidmCgAvjw7usBFpBh/atDrKlhYGHoGgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIww/vvh4AlbTUACCzAMSFEZZAcqR2AAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Interbedded sandstones and mudstones (only on GIS)" ] }, { "label": "Other sandstone", "url": "49212eb3fe75813d5b7763e0feec86df", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWPRMxFuERBid2CgAvjw7ucBFpBhvQssralhYHHCcQYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIww/vfh4AlbTUACCzAGE0EbbISNc7AAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Other sandstone" ] } ], "legendGroups": [ { "id": "0", "heading": "MIN_RES" } ] }, { "layerId": 26, "layerName": "Silica.Sand", "layerType": "Feature Layer", "minScale": 600000, "maxScale": 0, "legend": [ { "label": "Blown sand", "url": "1cb17671af4469cb84ac934e32f18b18", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWOxkmZoEeFkcGCgAnjzneEAC8iwjUEM1tQw0H8dAwMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1cESE4ZvvDAdAJS01AMgsAPxuDQVphJafAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Blown sand" ] }, { "label": "Construction and silica sand: Recent, Shirdley Hill Sand", "url": "c34727a36315faab7f58c3587bbc5092", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNZ688QKMbJ4MBABfDqO8MBFpBhNtIMedQw8MhTBgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw1ffGQ6ASlpqAJBZABogDlYtDEqtAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Construction and silica sand: Recent, Shirdley Hill Sand" ] }, { "label": "Quartz conglomerate, coincident with Crushed Rock (Douglas Muir Quartz Conglomerate Member)", "url": "ffb2b7aa1b121d909be7791050025deb", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWOx0pNtERHgcmCgAnjz4dsBFpBhG/siralhoH/RcgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIwzcfvh0AlbTUACCzAOOOEY+R5frSAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Quartz conglomerate, coincident with Crushed Rock (Douglas Muir Quartz Conglomerate Member)" ] }, { "label": "Quartzitic sandstone with potential for silica sand and silica rock", "url": "5b92daffcf1b22dc9f59cce7ca78755e", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWPRVGZo4eNhcGCgAvj0heEAC8iw6kwGa2oY2DqdgYGFgcqAZdRAigEL5UagglEDKQcsVDADBYwaOCLC8NMXhgOgkpYaAGQWALIvDR4XKS3LAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Quartzitic sandstone with potential for silica sand and silica rock" ] }, { "label": "Silica sand (construction sand): Cretaceous: Lower Greensand (Folkestone Formation)", "url": "17760dfac652ccc2bb0fb7c000373ed9", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZO6U7UExQyIGBCuDV+3cHWECG2Zjo51HDwCNnLjKwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGL56/+4AqKSlBgCZBQAqwhPEWMuoswAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Silica sand (construction sand): Cretaceous: Lower Greensand (Folkestone Formation)" ] }, { "label": "Silica sand and clay: Palaeogene, St Agnes Formation:", "url": "0ce8010ebd52e1e66eaba4a34a490bbb", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWPRMTBrERQUcWCgAnj//s0BFpBhXVNXWFPDwLLsCAYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw/fv3xwAlbTUACCzAGVOEWW/fJaBAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Silica sand and clay: Palaeogene, St Agnes Formation:" ] }, { "label": "Silica sand coincident with fireclay", "url": "cba29a25aa878ee4cbcb111b19ea18e0", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWPhMlNtYRbmdmCgAvj79usBFpBhckvyrKlh4KOYSQwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhn/ffj0AKmmpAUBmAQDNbhHkAiojWAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Silica sand coincident with fireclay" ] }, { "label": "Silica sand: Carboniferous, Millstone Grit", "url": "9c8d71c966e8b618864156417a1d0898", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOp7lMLFBBicWCgAvjw7s8BFpBhWoY8edQw8Nr5LwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhh/e/TkAKmmpAUBmAQDZmhNygnezhAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Silica sand: Carboniferous, Millstone Grit" ] }, { "label": "Silica sand: Cretaceous, Lower Greensand, Woburn Sands", "url": "17760dfac652ccc2bb0fb7c000373ed9", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZO6U7UExQyIGBCuDV+3cHWECG2Zjo51HDwCNnLjKwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGL56/+4AqKSlBgCZBQAqwhPEWMuoswAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Silica sand: Cretaceous, Lower Greensand, Woburn Sands" ] }, { "label": "Silica sand: Quaternary (approximate extent of area 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Gravel Formation, Tower Wood Gravel Member and Buller's Hill Gravel Member", "url": "5333875b9ece0b7247c57c6c2ed3ee2a", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZPr07UFiIz4GBCuDtu08HWECGWRsb5FHDwKNnLzCwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGL599+kAqKSlBgCZBQDz8RPInI1ikgAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Bedrock sand and gravel: Eocene, Aller Gravel Formation, Tower Wood Gravel Member and Buller's Hill Gravel Member" ] }, { "label": "Bedrock sand and gravel: Palaeogene, Poole Formation and Branksome Sand", "url": "3b3dfe95fe6a1009005513ec0b373f50", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZO0U5UEyQxYGBCuDV+z8HWECG2Zjw5FHDwCNnvjCwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGL56/+cAqKSlBgCZBQBGYxON6h4PkwAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Bedrock sand and gravel: Palaeogene, Poole Formation and Branksome Sand" ] }, { "label": "Bedrock sand and gravel: Permo-Triassic, Dawlish Sandstone (Devon), Bromsgrove Sandstone and Bridgnorth Sandstone (Gloucestershire)", "url": "a32d3abfa55978af4ed38ead7330b1bf", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNZW8IQKMbH4MBABfDqE8MBFpBhNhoMedQw8MgNBgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw1efGA6ASlpqAJBZACG1DmkCuq6tAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Bedrock sand and gravel: Permo-Triassic, Dawlish Sandstone (Devon), Bromsgrove Sandstone and Bridgnorth Sandstone (Gloucestershire)" ] }, { "label": "Bedrock sand and gravel: Triassic, Budleigh Salterton Pebble Beds Formation", "url": "f983b0e578bada117799b54211ca3713", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOJs9cP5GFjc2CgAvjy69cBFpBh8qL8edQw8OHrjwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhl9+/ToAKmmpAUBmAQAUnhNBvDxzaQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Bedrock sand and gravel: Triassic, Budleigh Salterton Pebble Beds Formation" ] }, { "label": "Bedrock sand and gravel: Triassic, Sherwood Sandstone", "url": "89b448ef51acd63825c1885897b35fec", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOZlW0WKMLH5sBABfDm068DLCDDTFWF86hh4OnbbxlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDN98+nUAVNJSA4DMAgAxZhN2MClcogAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Bedrock sand and gravel: Triassic, Sherwood Sandstone" ] }, { "label": "Concealed bedrock sand and gravel: only within areas assessed by BGS", "url": "7d053e6ee78dcdfac70ad0b9c6f4567a", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZ214SKCbA58BABfDqw6cDLCDDbAw086hh4JEL1xlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDF99+HQAVNJSA4DMAgApgxOvpoHIsQAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Concealed bedrock sand and gravel: only within areas assessed by BGS" ] }, { "label": "Conglomerate resources: Triassic, Sherwood Sandstone Group", "url": "89b448ef51acd63825c1885897b35fec", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOZlW0WKMLH5sBABfDm068DLCDDTFWF86hh4OnbbxlYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDN98+nUAVNJSA4DMAgAxZhN2MClcogAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Conglomerate resources: Triassic, Sherwood Sandstone Group" ] }, { "label": "Construction Sand: Permian, Yellow Sands Formation", "url": "fa7b751da41c2788714c9daec8b44647", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWOZm2cWKMjN4cBABfD+648DLCDDzNSE8qhh4Klb7xhYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDN9//XEAVNJSA4DMAgA/eRN/WjcPtgAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Construction Sand: Permian, Yellow Sands Formation" ] }, { "label": "Construction sand (Silica sand in Mansfield area only): Triassic, Sherwood Sandstone Group", "url": "3300265993698c3c646f00e6fc652fb8", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNZOzEiUEyQ04GBCuDV++8HWECG2RjK5VHDwCPnHzGwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGL56//0AqKSlBgCZBQCf/hOr3YAUtgAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Construction sand (Silica sand in Mansfield area only): Triassic, Sherwood Sandstone Group" ] }, { "label": "Construction sand: Cretaceous, Lower Greensand, Woburn 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