Big Caribou Lake peristerite occurrence, McConkey Township, Parry Sound District, Ontario, Canada
| Latitude & Longitude (WGS84): | 45° 56' 28'' North , 80° 6' 49'' West |
|---|---|
| Latitude & Longitude (decimal): | 45.94130,-80.11378 |
| Köppen climate type: | Dfb : Warm-summer humid continental climate |
A 100-foot pegmatite dike crosses the narrows on the west arm of Caribou
lake in lot 21, concession V, McConkey township. In lot 22, 3 chains south of the narrows, a pit 25 feet square with a maximum depth of 5 feet, has been put down on the west slope of a bald dome of pegmatite, which is apparently a continuation of the dike mentioned. Surrounding this pit there is a stripped area 50 feet in diameter. The pit shows the pegmatite to be an aggregate of pink feldspar and grey quartz, of which 5 per cent, is composed of pink feldspar individuals from l to 2 feet in diameter. Some of these have graphic intergrowths of quartz. Biotite occurs as books from l to 4 inches in diameter and constitutes in places as much as 5 per cent, of the pegmatite. Red-stained white plagioclase is present in minor amount as individuals from 6 to 12 inches in diameter. This showing was staked as P.S. 901 by J. W. Keenan of Detroit and prospected in 1940.
Mineral List
2 valid minerals.
Regional Geology
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-Cambrian 485.4 - 1000 Ma ID: 615430 | Mafic intrusive rocks Age: Neoproterozoic to Cambrian (485.4 - 1000 Ma) Comments: Southern and Superior Province Lithology: Gabbro, diorite, ultramafic rocks, and granophyre Reference: Ontario Geological Survey. 1:250 000 scale bedrock geology of Ontario. ISBN 978-1-4435-5705-4. Miscellaneous Release–Data 126 - Revision 1. [1] |
| Paleoproterozoic 1600 - 2500 Ma ID: 3190996 | Paleoproterozoic crystalline metamorphic rocks Age: Proterozoic (1600 - 2500 Ma) Lithology: Crystalline metamorphic 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. [154] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License
References
External Links
