Progressive change of mineral composition in metabasite along low- to high-P/T metamorphic facies series

它已经很长了--众所周知，自1950年代以来，新陈代谢比新陈代谢更敏感，改变了新陈代谢等级，低于400 ° C。However，自1980年以来，微探针的广泛使用以来，代谢和衍生成分的这些特征已经被澄清。本项目属于这个研究流程，由三个部分组成;实验petrolgy、metamorphic belt和相关技术。在第一部分，metamorphic facies的petrogenetic grid被确定为P<10 kb，T>500 ° C。这些面边界包括：含有沸石和Prehnite-Pumpellite（PP）面; PP和Pumpellite-actinolite（PA）面; PA和greenschist（GS）面; Prehnite-actinolite面和GS面;以及blueschist和GS面。在补充中，通过引入铁对这种过渡的滑动均衡的热动力计算已经完成。在第二部分，矿物成分的渐进变化，在最低P/T面部系列（加拿大温哥华岛卡姆森），高压中间面部系列（日本桑巴加瓦带），以及加利福尼亚州弗朗西斯科的最高P/T，已进行了研究。一个完整的摘要也完成了。在第三部分（本研究的应用），对深层累积复合体的增强技术、有机技术、日本lslands的技术开发，以及亚洲已经提供的技术，关注粒子摇滚单元的变形方面。所有这些结果都在一年后出版。1988年和1989年提交的论文摘要仅显示在本报告的最后一部分。

It has long been well-known since late 1950s' that metabasite is more sensitive than metapelite to the change of metamorphic grade at t lower than 400 ゜C. However, such characters of metabasite and itsmineral composition have been clarified after 1980 by the extensive use of microprobe. This Project belongs to this flow of study, and is composed of three parts; experimental petrolgy, study of metamorphic belt, and related tectonics.In part I, petrogenetic grid of metamorphic facies was determined at P<10kb, and T>500 ゜C at Stanford University. The facies boundaries bewteen zeolite and prehnite-pumpellyite(PP) facies, PP and pumpellyite-actinolite(PA) facies, PA and greenschist(GS) facies, prehnite-actinolite facies and GS facies, and blueschist and GS facies. In addition, the thermodynamic calculation of the sliding equilibria by the introduction of ferric iron for such transition was achieved.In part II, the progressive change of mineral composition with increasing metamorphic grade along the lowest P/T facies series(Karmutsen, Vancouver island, Canada), high-pressure intermediate facies series(Sanbagawa belt, Japan), and highest-P/T of Franciscan, California, were studied. A comprehensive summary was also achieved.In part III(application of this study), the uplifting tectonics of the deep-seated accretionary complex, orgeny, tectonic development of the Japanese lslands, and tectonics of Asia were given, following metamorphic aspects of particular rock units.All of these results are arranged following the year published. Only abstracts of papers presented in 1988 and 1989 are shown in the last part of this report.