Geochemical evolution of topaz rhyolites from the Thomas Range and Spor Mountain, Utah

Forming part of a bimodal sequence of basalt and rhyolite, these topaz rhyolites display chemical and mineralogical compositions which suggest that either element migration or monazite, sphene or samarskite fractionation played some role in their genesis.

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Veröffentlicht in:The American mineralogist 1984-04, Vol.69 (3-4), p.223-236
Hauptverfasser: Christiansen, Eric H, Bikun, James V, Sheridan, Michael F, Burt, Donald M
Format: Artikel
Sprache:eng
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Zusammenfassung:Forming part of a bimodal sequence of basalt and rhyolite, these topaz rhyolites display chemical and mineralogical compositions which suggest that either element migration or monazite, sphene or samarskite fractionation played some role in their genesis.
ISSN:0003-004X
1945-3027