Colemans Quarry
Colemans Quarry, grid reference ST726452 is a limestone quarry at Holwell, near Nunney on the Mendip Hills, Somerset, England.
The Colemans Quarry complex comprises four pits separated by three roads (including the A361)
The quarry exhibits pale to dark grey Black Rock, Vallis and Clifton Down Groups of Carboniferous Limestone with overlying buff-coloured Jurassic oolitic limestone forming an angular unconformity. The ancient Jurassic erosion surface at the unconformity contains oyster shells and abundant marine borings in the top of the Carboniferous Limestone. There are near-vertical fissures and joints in the limestone with varying amounts of calcite mineralization. A few of these have been found to contain rare Upper Triassic and Jurassic vertebrate remains.[1] There are abundant shelly fossils and corals.
It came to fame in 1858 when a geologist named Moore purchased three tons of fissure filling, and then spent 3 years sifting and sorting and separated more than one million fossils including 27 small mammal teeth.[2]
Minerals found at the site include Calcite, Goethite, Purple Fluorite, Baryte, Galena, Rhodochrosite and Manganese minerals.
See also
References
External links
- Mineral data for this quarry from mindat.org
- v
- t
- e
- Ashwick
- Axbridge
- Banwell
- Bishop Sutton
- Blagdon
- Bleadon
- Burrington
- Charterhouse
- Cheddar
- Chewton Mendip
- Churchill
- Compton Bishop
- Compton Martin
- Cross
- Draycott
- East Harptree
- Easton
- Hinton Blewett
- Hutton
- Leigh-on-Mendip
- Litton
- Oakhill
- Priddy
- Rodney Stoke
- Rowberrow
- Sandford
- Shepton Mallet
- Shipham
- Ubley
- Webbington
- Wells
- West Harptree
- Westbury-sub-Mendip
- Winscombe
- Wookey Hole
- Attborough Swallet
- Aveline's Hole
- Axbridge Ochre Mine
- Banwell Caves
- Banwell Ochre Caves
- Burrington Combe
- Charterhouse Cave
- Cheddar Gorge
- Compton Martin Ochre Mine
- Cox's Cave
- Eastwater Cavern
- Ebbor Gorge
- Fairy Cave Quarry
- GB Cave
- Goatchurch Cavern
- Gough's Cave
- Hunter's Hole
- Lamb Leer
- Longwood Swallet
- Manor Farm Swallet
- Picken's Hole
- Pierre's Pot
- Priddy Caves
- Read's Cavern
- Reservoir Hole
- Rhino Rift
- Rod's Pot
- Shatter Cave
- Shute Shelve Cavern
- Sidcot Swallet
- St Cuthbert's Swallet
- St. Dunstan's Well Catchment
- Stoke Lane Slocker
- Swildon's Hole
- Thrupe Lane Swallet
- Tyning's Barrow Swallet
- Upper Flood Swallet
- W/L Cave
- Wookey Hole Caves
- Asham Wood
- Axbridge Hill and Fry's Hill
- Banwell Caves
- Banwell Ochre Caves
- Barns Batch Spinney
- Blagdon Lake
- Bleadon Hill
- Brimble Pit and Cross Swallet Basins
- Burledge Hill
- Burrington Combe
- Chancellor's Farm
- Cheddar Complex
- Cheddar Reservoir
- Cheddar Wood
- Chew Valley Lake
- Cloford Quarry
- Compton Martin Ochre Mine
- Cook's Wood Quarry
- Crook Peak to Shute Shelve Hill
- Dolebury Warren
- Draycott Sleights
- Ebbor Gorge
- Emborough Quarries
- Harptree Combe
- Hobbs Quarry
- Holwell Quarries
- Kingdown and Middledown
- Lamb Leer
- Priddy Caves
- Priddy Pools
- Perch
- Rodney Stoke
- St. Dunstan's Well Catchment
- Sandpit Hole and Bishop's Lot
- Shiplate Slait
- Viaduct Quarry
- Windsor Hill Quarry
- Wurt Pit and Devil's Punchbowl
51°12′19″N 2°23′37″W / 51.20535°N 2.39359°W / 51.20535; -2.39359