Basic Li Grassroot Facts.
Breaks and Tindle, 1997 :
- Fertile granites differ from barren (common) granites in their geochemistry, mineralogy, and texture. Fertile granites tend to be large plutons or batholiths, typically greater than 10 km2 in outcrop area .
Selway, Breaks & Tindle, 2004 :
-They are silicic (quartz rich) and peraluminous (A/CNK > 1.0), resulting in crystallization of Al-rich minerals such as muscovite, garnet, and tourmaline.
-The presence of garnet in a granite indicates that the granite is peraluminous and fertile, because barren granites do not contain garnet.
-The presence of pink, green, or blue Li-rich tourmaline indicates that the pegmatite has economic potential for Li, Cs-Ta, although not all Ta-mineralized pegmatites contain tourmaline.
-The presence of blue or green Mn-rich fluorapatite indicates that the pegmatite has economic potential for Li-Cs, Ta, although not very many Ta-mineralized pegmatites contain Mn-rich fluorapatite.
-The presence of beryl indicates that the granite is fertile and peraluminous, because barren granites do not contain beryl.
Mar 17, 2022 (Paul Malegus) - White granitoid with significant abundance of biotite (40%) and approx. 20-30% muscovite. Primarily composed of quartz. XRD completed on green mineral, which is Apatite with inclusions of Xenotime.
The Windfall Road area contains abundant white pegmatite dikes hosted in biotite-quartz-feldspar
migmatitic rock and white granite. One sample (2011CS014) is elevated in light rare earth elementsand has a total rare earth concentrationof 259.455 ppm. Presence of cordierite was discovered.
Ontario Geoscience Recommended areas
Link to OFR 6381 pdf p88
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| 3) Scout Lake Granite lithium prospect 4) Windfall Road lithium prospect |
Exploration History
2021: RGP geologists were completing reconnaissance in the English River subprovince, looking for peraluminous granites and pegmatites. Sample collected during visit.
.JPG)
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| green mineral, where it returned as Apatite with trace Xenotime inclusions |
The rush is on!
