...F ig . 2. Plan of the Oregon No. 3 pegmatite (modified from Simmons & Heinrich 1980 ). This pegmatite is relatively simple compared with other zoned pegmatites in the district. There are only three primary zones: a quartz core, a fluorite – albite – REE mineral core-margin zone...

... of the parent solution and can be used to estimate the ratio of NaCl to CaCl 2 in the system. Comparison of these spectra with spectra collected from moderate-salinity natural fluid inclusions from the Oregon 3 granitic pegmatite, Colorado, allows non-destructive testing, and confirmation that these inclusions...

... in all three quartz samples. Corresponding data of quartz-hosted secondary L-V and L-V-H inclusions from the Oregon #3 pegmatite are shown for comparison ( Gagnon et al., 2004 ). ...

... and climatic settings of VS-endowed districts, (2) geochemical footprint of Li-fertile magmatic rocks found in VS deposits, (3) mechanisms of transport and enrichment of Li from the primary igneous rocks to the critical zone, (4) physical and structural features of the geologic trap, (5) triggers for the Li...

... Mountain schist (pCk unit, Fig. 3 b ; Blake et al. 2009 ). Grain size varies from medium- to coarsely crystalline; within pegmatitic rocks, potassium–feldspar megacrysts exceed 15 cm in length. Millimetre scale sub- to euhedral garnet dodecahedra and aggregate clusters ∼1 cm in diameter are randomly...

... of extensional orogen collapse, and the emplacement of the Lyon Mountain Granite. New U-Pb zircon age determinations of 1045 ± 7.5 (Barton Garnet Mine) and 1055 ± 7.4 (New York State Route 3 near Cranberry Lake) for Lyon Mountain granite pegmatites directly associated with megacrystic garnet amphibolites...

...Frank C. Hawthorne; Mark A. Cooper; Neil A. Ball; Yassir A. Abdu; Petr Černý; Fernando Cámara; Brendan M. Laurs Abstract Billwiseite, ideally Sb 3+ 5 (Nb,Ta) 3 WO 18 , is an oxide mineral from a granitic pegmatite on the eastern margin of the Nanga Parbat – Haramosh massif at Stak Nala, 70 km east...

... and no cores ( Fig. 5D ; Data Repository Fig. DR2). Six analyses give a weighted mean age of 92 ± 3 Ma, which is interpreted as the age of crystallization of the sill. This age is slightly younger than the age of the undeformed pegmatite, but is within error of both ages. We speculate that the tonalite sill...

...Robert J. Bowell; Laura Lagos; Camilo R. de los Hoyos; Julien Declercq There are three broad types of economic lithium deposit: 1) peralkaline and peraluminous pegmatite deposits and their associated metasomatic rocks; 2) Li-rich hectorite clays derived from volcanic deposits; 3) salar evaporites...