Old Cumbria Gazetteer |
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| Donkey Rock, Broughton West | ||
| Donkey Rock | ||
| site name:- | Bush Green Quarry | |
| civil parish:- | Broughton West (formerly Lancashire) | |
| county:- | Cumbria | |
| locality type:- | geological site | |
| locality type:- | quarry | |
| coordinates:- | SD21048680 (etc) | |
| 1Km square:- | SD2186 | |
| 10Km square:- | SD28 | |
| stratigraphy:- | Silurian | |
| stratigraphy:- | Coniston grits; mudstone | |
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 BSN33.jpg (taken 16.4.2010)  BSN34.jpg (taken 16.4.2010) |
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 BSN35.jpg (taken 16.4.2010) |
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| notes:- |
These are called sole structures, they are sedimentary sandstones and mudstones laid
down in deep water, the bumps caused by hard pieces which settled first and were covered
by finer material. Later the beds have been tipped on their sides by geological folding.
The rocks are Coniston Grits of the Silurian period. There are about 6 (?) beds of
this type in the quarry. |
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| Moseley: 1978:::: p.143 |
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