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Economic Geology, 1949
Montana pegmatites are of three main age groups: pre-Beltian, both metamorphosed and unmetamorphosed types; Laramide, associated with the Boulder batholith; and Tertiary, related to scattered alkalic stocks and small intrusives. Deposits of sillimanite, kyanite, corundum, mica, fergusonite, and chromite occur with pre-Beltian pegmatites.
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Montana pegmatites are of three main age groups: pre-Beltian, both metamorphosed and unmetamorphosed types; Laramide, associated with the Boulder batholith; and Tertiary, related to scattered alkalic stocks and small intrusives. Deposits of sillimanite, kyanite, corundum, mica, fergusonite, and chromite occur with pre-Beltian pegmatites.
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Distribution of Permian pegmatites and spodumene pegmatites in the Austroalpine unit
Lithium ist ein Metall, das in der heutigen Gesellschaft unverzichtbar geworden ist, und die Nachfrage nach Lithium steigt ständig. Aus diesem Grund könnten kleine Lithiumvorkommen wie Spodumen-Pegmatite aus dem Ostalpinen Kristallin in Zukunft von wirtschaftlicher Bedeutung sein.openaire +1 more source
Northfieldite, pegmatite, and pegmatite schist
American Journal of Science, 1915openaire +1 more source
Fluid properties and ore-forming process of the giant Jiajika pegmatite Li deposit, western China
Ore Geology Reviews, 2023Pei Ni
exaly