| 甘孜－理塘结合带甘孜地区混杂岩类型及成因分析 |
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| 引用本文： | 江元生.甘孜－理塘结合带甘孜地区混杂岩类型及成因分析[J].四川地质学报,1996(3). |
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| 作者姓名： | 江元生 |
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| 作者单位： | 四川省地矿局区调队 |
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| 摘 要： | 对甘孜－理塘结合带甘孜地区的沉积混杂、火山混杂、构造混杂岩作了系统分析研究。重点论述了甘孜地区三条构造混杂岩带的物质组成、变形特征和形成机制。结合带是由大小不等，形态各异的岩块（片）拼贴、堆叠而成的构造混杂岩带。较合理地解释了结合带内，大洋拉斑玄武岩、洋岛玄武岩、大陆碱性玄武岩共存的地质特征。提出了一种新的构造岩石单位——构造混杂岩。并对甘孜地区蛇绿岩的成因作了探讨。
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| 关 键 词： | 结合带，蛇绿混杂岩，构造混杂岩，火山混杂岩，沉积混杂岩 |
TYPES AND GENESIS OF MELANGE IN GARGE AREA IN THE GARZE-LITANG JUNCTION |
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| Jiang Yuansheng.TYPES AND GENESIS OF MELANGE IN GARGE AREA IN THE GARZE-LITANG JUNCTION[J].Acta Geologica Sichuan,1996(3). |
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| Authors: | Jiang Yuansheng |
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| Abstract: | Sedimentary,volcanic and tectonic me'langes in Garze area in the Garbs-Litang junction are systematically analyzed. Composition, deformation and genetic mechanism of three tectonic melange zones in Garze area are discussed. This junction is a tectonic me'lange zone which consists of blocks (microlithons) differing in size and shape.Association of continental alkaline basalt with oceanic tholeiite and oceanic island basalt in the junction is reasonably interpreted. A new tectonic rock unit-tectonic me'lange is established. Make an approach to genesis of ophiolite in Garze area. |
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| Keywords: | junction ophiolite me'lange tectonic me'lange volcanic me'lange sedimentary me'lange |
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