Optical and infra-red studies on high-temperature Alkali Feldspars
作者： Dov Bahat
DOI: 10.1080/00167617008728727
关键词: Mineralogy 、 Ternary operation 、 Geology 、 Feldspar 、 Alkali metal 、 Ion 、 Phenocryst 、 Infrared 、 Calcium content 、 Phase (matter)
摘要: Abstract In ternary feldspars of essentially one phase, calcium content has a dominant influence on the optic axial angle. such and also in binary from solvsbergite rocks, variations cooling histories do not significantly affect which are unmixed into two or three prominent phases, Al/Si ordering an important effect 2V value. A recent suggestion several writers that alkali structural site may be partially occupied by (H3O)+ ions is applied as possible way to explain correlation observed between petrographical features rocks angles their feldspar phenocrysts.
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