National Gypsum Company quarries, Dingwall, Victoria Co., Nova Scotia, Canada
|Latitude & Longitude (WGS84):||46° 53' 37'' North , 60° 29' 2'' West|
|Latitude & Longitude (decimal):||46.8936111111, -60.4838888889|
Abandoned gypsum mine located on the North end of Cape Breton Island. The deposit was last worked in 1955.
7 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
323.2 - 358.9 Ma
Age: Mississippian (323.2 - 358.9 Ma)
Stratigraphic Name: Hood Island Formation; Woodbine Road Formation; Uist Formation; Loch Lomond Formation; Enon Formation; Meadows Road Formation; Kempt Head Formation; Sydney River Formation; Gays River Formation; MacBeth Brook Formation; Macumber Formation
Description: Consists of the Upper Windsor Group, Middle Windsor Group, and Lower Windsor Group. Upper Windsor Group: mudstone, sandstone, minor conglomerate, gypsum and shallow marine limestone, 100-700 m (Viséan (Holkerian-Asbian), C-E subzones fauna and spores); includes the Hood Island Formation, Woodbine Road Formation, and Uist Formation; conformable-disconformable on Middle Windsor Group. Middle Windsor Group: halite, anhydrite, gypsum, mudstone, siltstone, sandstone, conglomerate, 300 m (Viséan (Holkerian), B subzone fauna and spores); includes the Loch Lomond Formation, Enon Formation, and Meadows Road Formation; conformable-disconformable on Lower Windsor Group. Lower Windsor Group: anhydrite, salt, gypsum, shale, marine dolostone and limestone >150m (Viséan (Arundian), A subzone fauna and spores); includes the Kempt Head Formation, Sydney River Formation, Gays River Formation, MacBeth Brook Formation, and Macumber Formation; disconformable-unconformable on Horton Group and older rocks
Reference: Kippie, J.D. (compiler), B.E. Fisher, J.C. Poole. Geological Map of the Province of Nova Scotia, Scale 1:500 000. Nova Scotia Department of Natural Resources. 
(reprinted in 1973)
Goodman, N.R. (1952) Gypsum and Anhydrite in Nova Scotia. Nova Scotia Department of Mines, Memoir No. 1, 77 pp.