|Latitude & Longitude (WGS84):||44° 59' 49'' North , 78° 2' 5'' West|
|Latitude & Longitude (decimal):||44.99722,-78.03500|
|Other regions containing this locality:||Bancroft area (Bancroft district), Ontario, Canada|
|Köppen climate type:||Dfb : Warm-summer humid continental climate|
Owned by Macassa Gold Mines, Ltd., Bicroft Div.
In pegmatite dykes cutting biotite gneiss and amphibolite.
"This mine was the second larges producer of uranium in the Bancroft area.
"The deposit was discovered in 1952 by G.W. Burns of Peterborough. Centre Lake Uranium Mines Limited began exploration of the deposit in 1953. By 1955 when the company was amalgated with Croft Uranium Mines Limited to form Bicroft Uranium Mines Limited, exploration work consisted of surface cuts, a 53.4-m adit and a 71.4-m shaft. The newly formed company erected a mill, sank another shaft to a depth of 562 m and brought the mine into production in 1956. From then until operations were terminated in 1963, 2,016,693 kg of U3O8 were recovered from 2,233,055 t of ore."
40 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
|Neoproterozoic - Mesoproterozoic|
541 - 1600 Ma
|Grenville Supergroup and Flinton Group|
Age: Proterozoic (541 - 1600 Ma)
Stratigraphic Name: Flinton Group
Comments: Grenville Province Central Metasedimentary Belt
Reference: Ontario Geological Survey. 1:250 000 scale bedrock geology of Ontario. ISBN 978-1-4435-5705-4. Miscellaneous Release–Data 126 - Revision 1. 
1200 - 1400 Ma
|Mesoproterozoic sedimentary rocks|
Age: Ectasian (1200 - 1400 Ma)
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.