KEY

GEOLOGY

Silurian (443.7-416Ma) N Lamprophyres (0-4600Ma) Microgabbro (0-4600Ma) Sandstone (154-485Ma) Sandstone and siltstone, interbedded (325-485Ma) Siltstone (318-428Ma) Siltstone and limestone, interbedded (445-448Ma) Tuffaceous-sandstone (445-446Ma) Scarborough Early Carboniferous (354-290Ma) Conglomerate and [subequal/subordinate] sandstone, interbedded (341-354Ma) Dolomitised limestone and dolomite (327-337Ma) Richmondshire Limestone and [subequal/subordinate] conglomerate, interbedded (330-344Ma) Limestone with subordinate sandstone and argillaceous rocks (325-334Ma) Limestone, sandstone, siltstone and mudstone (325-334Ma) Hambleton Mudmound limestone (330-337Ma) Mudstone and limestone, interbedded (341-344Ma) Mudstone, siltstone and sandstone (316-327Ma) Sandstone and mudstone (316-334Ma) Ryedale Siltstone and sandstone (324-327Ma)

Middle and Late Carboniferous (330-300Ma)

Chert (325-330Ma) Limestone, argillaceous rocks and subordinate sandstone, interbedded (316-334Ma) Mudstone and siltstone (316-446Ma) Sandstone and [subequal/subordinate] argillaceous rocks, interbedded (327-330Ma) Craven Siliceous limestone (327-334Ma) Harrogate Siltstone, mudstone and sandstone (324-325Ma)

KEY (Continued) Permian (290-248Ma) Dolostone (248-256Ma) Quarternary (0-2.588Ma)

Calcareous tufa (0.00-1.80Ma) Triassic (248-205Ma)

Clay (0.01-0.12Ma) Calcareous mudstone (242-426Ma) Clay and silt (0.00-1.80Ma) Dolomitic limestone (248-256Ma) Clay, sand and gravel (0.01-0.12Ma) Clay, silt and sand (0.00-1.80Ma) Jurassic (195-140Ma) Clay, silt, sand and gravel (0.00-1.80Ma) Ironstone (190-195Ma) Diamicton (0.01-1.80Ma) Limestone (154-448Ma) Gravel (0.00-1.80Ma) Limestone and calcareous sandstone (154-159Ma) Gravel, sand and silt (0.00-1.80Ma) Limestone and mudstone, interbedded (154-344Ma) Gravel, sand, silt and clay (0.00-1.80Ma) Limestone and [subequal/subordinate] sandstone, interbedded (159-169Ma) Peat (0.00-1.80Ma) Selby Mudstone (146-344Ma) Rock fragments, angular, undifferentiated source rock (0.00-1.80Ma) Mudstone, sandstone and ironstone (169-195Ma)

Sand (0.00-1.80Ma) Mudstone, sandstone and limestone (169-177Ma)

Sand and gravel (0.00-1.80Ma) Ooidal limestone (154-159Ma) Silt (0.00-1.80Ma) Sandstone and [subequal/subordinate] limestone, interbedded (159-177Ma) Unknown/unclassified entry (0.00-1.80Ma) Sandstone, siltstone and mudstone (164-195)

Study Area Cretaceous (142-65Ma) Landscape Character Types* Basaltic-andasite (TAS) (54.8-65.0Ma) District Boundaries Chalk (71.3-112Ma)

0510km

Reproduced from the British Geological Survey - Map Data at the original scale of 1:50,000. Licence 2009/077A British Geological Survey © NERC. All rights reserved. Reproduced by permission of Ordnance Survey on behalf of HMSO. © Crown copyright and database right 2010. All rights reserved. Ordnance Survey Licence number 100017946. *See Chapter 3.0

CHRIS BLANDFORD ASSOCIATES NORTH YORKSHIRE AND YORK LANDSCAPE CHARACTERISATION PROJECT FIGURE 2.1 environment landscape planning Geology February 2011