|Latitude & Longitude (WGS84):||50° 15' 33'' North , 94° 26' 35'' West|
|Latitude & Longitude (decimal):||50.25944,-94.44306|
|Owned/operated by:||Avalon Advanced Materials Inc.|
|Köppen climate type:||Dfb : Warm-summer humid continental climate|
The Separation Lake area (not a formal geographic name rather an area around the lake that includes primarily Paterson Lake Area & the Treelined Lake Area) is host to the most important rare-element pegmatites in Ontario, Canada. They include the Big Whopper and Big Mack petalite pegmatite systems which potentially represent the world's second largest lithium deposit of this type. The pegmatites occur in two distinct clusters adjacent to the Separation Rapids pluton which is thought to be the source of the rare-elements. Beryl-type and complex-, petalite-subtype pegmatites are the most common and a few pegmatites have characteristics similar to the lepidolite-subtype.
There are currently 29 recognized pegmatites in the area.
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
52 valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc.
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
2500 - 2800 Ma
|Archean intrusive rocks|
Age: Neoarchean (2500 - 2800 Ma)
Lithology: Intrusive igneous 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. 
|Neoarchean - Mesoarchean|
2500 - 3200 Ma
|Foliated tonalite suite|