Petrogenetic links between lepidolite-subtype aplite-pegmatite, aplite veins and associated granites at Segura (central Portugal)
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چکیده
منابع مشابه
Lithium-aluminium micas from the Meldon aplite, Devonshire, England
Chemical analyses of sixteen lithium-aluminium micas are presented along with their optical, physical, and X-ray data. Compositional variation, substitution relations in structural positions, and octahedral occupancy are discussed. The 2M~ structural types are found to crystallize in volatile-rich low-temperature environments whereas the I M polytypes occur in comparatively volatilepoor and hig...
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In the lithium-cesium-tantalum-type pegmatite dikes of San Diego County, California, USA, tourmaline is the main reservoir for Li, except in the cores and the pockets of the dikes where other Li-bearing minerals also occur. Tourmaline from three subhorizontal dikes was analyzed for bulk Li concentrations and Li isotope ratios. The bottom portion of each dike includes rhythmically layered aplite...
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ژورنال
عنوان ژورنال: Geochemistry
سال: 2013
ISSN: 0009-2819
DOI: 10.1016/j.chemer.2012.12.003