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塔南凹陷火山碎屑岩成岩作用特征

Science Technology and Engineering(2011)

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Abstract
通过岩心观察和薄片鉴定,塔南凹陷发育有火山碎屑沉积岩、普通火山碎屑岩、沉积火山碎屑岩、熔结火山碎屑岩。结合扫描电镜和电子探针实验,确定了火山碎屑岩的成岩作用类型有压实、压溶、胶结、熔结、熔蚀、溶蚀、交代、脱玻化、重结晶作用和自生矿物的形成等。综合镜质体反射率值、最高热解温度、黏土矿物组合、自生矿物的分布等划分标志,表明目的层位属于晚成岩阶段的A期。
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Tanan depression pyroclastic rock diagenesis
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