菲律宾蛇绿岩及其大地构造意义
菲律宾蛇绿岩及其大地构造意义
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Author / Creator
YU Mengming , YAN, Yi , HUANG Chiyue , LIU Haiquan , ZHANG Xinchang , LAN Qing , CHEN Wenhuang and QIAN Kun
Publisher
Beijing: Marine Geology and Quaternary Geology
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Language
Chinese
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Publisher
Beijing: Marine Geology and Quaternary Geology
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Contents
菲律宾出露有20余套规模各异的俯冲带上板块(SSZ)型蛇绿岩,它们的时代以晚中生代为主,仅少数为新生代。大多数菲律宾蛇绿岩出露相对完整,包括由二辉橄榄岩、方辉橄榄岩、纯橄岩等组成的变质地幔岩,和堆晶辉石岩、辉长辉绿岩等深成岩,以及枕状玄武岩、熔岩等喷出岩,甚至燧石岩等上覆沉积物,部分发育席状岩墙群和与蛇绿岩相关的构造混杂岩及变质基底。其中喷出岩在地球化学特征上整体表现出类似MORB和IAT的REE配分模式,具LILE富集和HFSE (如Nb、Ta相对La、Th)弱到中等程度亏损的特征。通过对菲律宾蛇绿岩的形成年代、岩石组合、地球化学特征及构造环境的分析,并与东南亚地区其他同时代蛇绿岩和周缘边缘海进行对比,将菲律宾蛇绿岩分为两部分。(1)菲律宾活动带蛇绿岩,该蛇绿岩带自西向东出露晚中生代弧前、...
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Full title
菲律宾蛇绿岩及其大地构造意义
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Record Identifier
TN_cdi_proquest_journals_2766280047
Permalink
https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_journals_2766280047
Other Identifiers
ISSN
0256-1492
DOI
10.16562/j.cnki.0256-1492.2015.06.006
