Textural Development of DehydrationMelting in Amphibolite at 1.0～3.5 GPa and
详细信息
- 责任者：Zhou Wenge（Institute of Geochemistry ; Chinese Academy of Sciences ; Guiyang 550002 ; China) ; Fan Dawei
- 刊名：Earth Science Frontiers
- 出版年：2009
- 卷期：16(1)
- 关键词：角闪岩 ; amphibolites ; 部分熔融 ; partial melting
- 页码：p.146-154
- 图表：3 illus., 2 tables, 27 refs.
- 分类号：0801
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
Two sets of dehydrationmelting with a natural solid amphibolite, collected from the Dabaineng-Leyu profile in the southern Ailaoshan orogenic belt, Honghe County , Yunnan 50" HasSpace="True" Negative="False" NumberType="1" TCSC="0">950 ℃ , varying the annealing time (20~300 h). The products are inspected with microscope and electron probes. The results indicate that at 50" HasSpace="True" Negative="False" NumberType="1" TCSC="0">950 ℃ , annealing time of 100 h, as the pressure in the range of 1.0～1.5 GPa, the mineral assemblage in the products is clinopyroxene+garnet+melt. Based on the mineral distribution and assemblage in the run products at 1.0～3.5 GPa and 50" HasSpace="True" Negative="False" NumberType="1" TCSC="0">950 ℃ for 20～300 h, the textural development of amphibolite during the partial melting process, the metamorphic reaction, and the garnet corona generation are discussed.
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