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OBSERVATION OF GP ZONES IN ORTHOPYROXENES
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作者 黄婉康 康振川 《Chinese Science Bulletin》 SCIE EI CAS 1989年第15期1283-1285,共3页
The Guinier-Preston zone, which has been found in both lunar and terrestrial orthopyroxenes, is a metastable phase of orthopyroxenes with a wollastonite content~25% and a new pyroxene space-group symmetry Pbc 21. It... The Guinier-Preston zone, which has been found in both lunar and terrestrial orthopyroxenes, is a metastable phase of orthopyroxenes with a wollastonite content~25% and a new pyroxene space-group symmetry Pbc 21. Its size, distribution, composition and structure may be important indicators of the low-temperature thermal history of orthopyroxene. The ultrastructures of two terrestrial bronzites have been observed under HREM (TEM-100CXII). The size, shape and 展开更多
关键词 GP ZONES ULTRASTRUCTURE bronzite
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