Wells stones 2018-01-22
Guide: Doug
Organiser: Jean
Vicars Close
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 | House built from iron-stained Mercia Mudstone, with Doulting Stone window/door surrounds. Mudstone is local and plentiful, but not suitable for fine working. Doulting stone is a free stone that can be cut/carved in any direction. |
 | Oolites in Doulting stone, formed by the agitation and evaporation of calcium carbonate-rich seawater. The mineral calcite is crystallised in concentric layers to form grains about 1mm in diameter. |
 | Lower Jurassic, Chilcote Stone in doorway arch near Southern end of the close, formed as conglomerate carbonate beach deposit. |
 | Coarse conglomerate - formed closer to eroding Mendips |
 | Coarse conglomerate - formed near top of scree slope |
Cathedral Green
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 | Chilcote stone house wall with Doulting stone window surrounds |
 | Carboniferous limestone with fossil corals |
Gatehouse, Saddler Street
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 | Alternating rows of Doulting stone and Dolomitic conglomerate |
Catholic Church, Chamberlain Street
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 | House with Blue Lias frontage, cheaper Mercia mudstone and Dolomitic conglomerate side walls |
 | Side wall made of Dolomitic conglomerate, Mercia mudstone, white and blue lias blocks |
Job Centre, Chamberlain Street
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 | Blue lias blocks containing many fossil shells |
Old Dolphin pub, corner of Portway
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 | Typical Dolomitic conglomerate gatepost, with rounded top |
Westfield Vet Centre, Portway Avenue
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 | Very coarse conglomerate blocks, shaped to fit arch and corner |
Wells Trading Post, West Street
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 | Blue Lias building blocks |
 | More Blue Lias with fossil shells |
Southover
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 | 3 terraced houses, each made of different stones. House on right has Blue Lias frontage, middle house a mixture of all types of stone. House on left dominantly built of red Mercia Mudstone blocks. Evidence of later upper floors in taller pair. |
St John's Street
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 | Rose & Crown: Another Dolomitic conglomerate gatepost with rounded top |
 | Old Post Office. A chequerboard appearance built of spaced red Mercia Mudstone and lighter-coloured Blue Lias blocks. |
Nowhere Cottage, Mill Lane
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 | Plenty of Old Red Sandstone dark red coloured blocks in the side wall of this house |
South Street
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 | Mixed stones on house side-wall, including one with fossil ammonite |
 | Another ammonite, placed to the right of the door lintel |
Car Park, Market Place
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 | Carboniferous, Pennant sandstone flagstone with ripple marks, near fountain base. Probably formed on former large delta. |
 | Igneous cobbles used to delimit parking area - lighter coloured feldspar porphyry and dark basalts |
 | Igneous cobbles used to delimit parking area - lighter coloured feldspar porphyry and dark basalts |
 | Igneous cobbles used to delimit parking area -light coloured coarse grained granite blocks |
 | Igneous cobbles used to delimit parking area - mixture of lighter coloured feldspar porphyry and dark basalt cobbles. |
Further information