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文章
Roedder, E. Fluid Inclusions. In Reviews in Mineralogy; Ribbe, P.H., Ed.; Mineralogical Society of America: Washington, DC, USA, 1984; Volume 12, p. 644.
被如下文章引用:
- TITLE: Water- and Boron-Rich Melt Inclusions in Quartz from the Malkhan Pegmatite, Transbaikalia, Russia
- AUTHORS: Rainer Thomas,Paul Davidson,Elena Badanina
- KEYWORDS: melt inclusion, fluid inclusion, gel inclusion, water, boron and cesium determination, pegmatite genesis
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JOURNAL NAME: Minerals
DOI: 10.3390/min2040435
Sep 07, 2014
- ABSTRACT: In this paper we show that the pegmatite-forming processes responsible for the formation of the Malkhan pegmatites started at magmatic temperatures around 720 °C. The primary melts or supercritical fluids were very water- and boron-rich (maximum values of about 10% (g/g) B 2O 3) and over the temperature interval from 720 to 600 °C formed a pseudobinary solvus, indicated by the coexistence of two types of primary melt inclusions (type-A and type-B) representing a pair of conjugate melts. Due to the high water and boron concentration the pegmatite-forming melts are metastable and can be characterized either as genuine melts or silicate-rich fluids. This statement is underscored by Raman spectroscopic studies. This study suggested that the gel state proposed by some authors cannot represent the main stage of the pegmatite-forming processes in the Malkhan pegmatites, and probably in all others. However there are points in the evolution of the pegmatites where the gel- or gel-like state has left traces in form of real gel inclusions in some mineral in the Malkhan pegmatite, however only in a late, fluid dominated stage.
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