Deforest Quarry, Caledon Township, Peel Region, Ontario, Canada
|Latitude & Longitude (WGS84):||43° 47' 42'' North , 79° 57' 30'' West|
|Latitude & Longitude (decimal):||43.79504,-79.95845|
|Köppen climate type:||Dfb : Warm-summer humid continental climate|
A quarry in limestone & sandstone located west of Inglewood. The quarry produces grey & red Whirlpool sandstone of Silurian age for use as flagstone. The limestone, also Silurian, caps the sandstone. Orange to white celestite occurs as bladed & tabular aggregates at the contact of limestone and the sandstone as well as a thin vuggy unit of limestone just above the sandstone. Copper minerals occur in the vuggy limestone and at the limestone-sandstone interface extending a few centimeters into the sandstone.
14 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
252.17 - 541 Ma
|Paleozoic sedimentary rocks|
Age: Paleozoic (252.17 - 541 Ma)
Lithology: Sedimentary rocks
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. 
419.2 - 443.8 Ma
Age: Silurian (419.2 - 443.8 Ma)
Stratigraphic Name: Whirlpool Formation; Manitoulin Formation; Cabot Head Formation; Reynales Formation; Fossil Hill Formation
Comments: thin units variously shale-, sandstone-, dolostone- or limestone-dominated; one or more of Whirlpool, Manitoulin, Cabot Head, Grimsby, Thorold, Neahga, Reynales, Irondequoit, Reynales, Rochester, Decew, Dyer Bay, Wingfield, St. Edmund, or Fossil Hill formations
Reference: Armstrong, D.K, and J.E.P. Dodge. Paleozoic geology of southern Ontario. Ontario Geological Survey Miscellaneous Release–Data 219. 
|Wenlock - Early Silurian|
427.4 - 443.8 Ma
|Clinton Group; Cataract Group|