The Geology and Geochemistry of Cenozoic Topaz Rhyolites from the Western United States
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چکیده
All materials subject to this copyright and included in this volume may be photocopied for the noncommercial purpose of scientific or educational advancement. The geology and geochemistry of Cenozoic topaz rhyolites from the western United States.
منابع مشابه
Contributions to mineralogy and petrology
High-silica topaz-bearing rhyolites of Cenozoic emplaced as domes, lava flows or shallow intrusions. They age are widely distributed across the western USA and may also contain Fe-Mn garnet, beryl, bixbyite, pseudoMexico. They are characteristically enriched in fluorine brookite, hematite and fluorite in miarolitic cavities or with(>0.2 wt.%) and incompatible lithophile elements (e.g. Li, in th...
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