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Clinopyroxenes in Kimberlites of China
作者单位:Dong Zhenxin Geological Museum of China,Beijing Fei Zhenbi
摘    要:The author studied the grain size, shape, colour, altered coat, mineral species, chemical composition,end- member components and infrared spectra of clinopyroxenes occurring as megacryst, macrocryst andgroundmass minerals, intergrowths with pyrope and ilmenite and minerals in deep-seated xenoliths and inclu-sions in diamonds in kimberlites of China. The clinopyroxenes under study were compared with megacrystclinopyroxenes in basalts and minerals in their deep-seated xenoliths and clinopyroxenes in lamproites andminettes. The coexisting clinopyroxene-pyrope pair was studied. Besides the author also studied the origin ofclinopyroxenes in kimberlites, P-T conditions for their formation and their reflected tectonic environments ofthe kimberlite formation. He suggests that this mineral is an indicator for diamond exploration.


Clinopyroxenes in Kimberlites of China
Dong Zhenxin Geological Museum of Chin,Beijing Fei Zhenbi. Clinopyroxenes in Kimberlites of China[J]. Acta Geologica Sinica (English Edition), 1992, 66(3): 259-270. DOI: 10.1111/j.1755-6724.1992.mp5003003.x
Authors:Dong Zhenxin Geological Museum of Chin  Beijing Fei Zhenbi
Abstract:The author studied the grain size, shape, colour, altered coat, mineral species, chemical composition,end- member components and infrared spectra of clinopyroxenes occurring as megacryst, macrocryst andgroundmass minerals, intergrowths with pyrope and ilmenite and minerals in deep-seated xenoliths and inclu-sions in diamonds in kimberlites of China. The clinopyroxenes under study were compared with megacrystclinopyroxenes in basalts and minerals in their deep-seated xenoliths and clinopyroxenes in lamproites andminettes. The coexisting clinopyroxene-pyrope pair was studied. Besides the author also studied the origin ofclinopyroxenes in kimberlites, P-T conditions for their formation and their reflected tectonic environments ofthe kimberlite formation. He suggests that this mineral is an indicator for diamond exploration.
Keywords:kimberlites  clinopyroxenes  geochemistry
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