柴达木盆地东北缘大红沟地区古近系露头层序地层Outcrop Sequence Stratigraphy of the Paleogene Strata of Dahonggou Region in the Northeast Margin of Qaidam Basin
宋博文;张克信;季军良;路晶芳;陈锐明;
摘要(Abstract):
通过对柴达木盆地东北缘大红沟剖面古近纪地层沉积特征的详细研究,识别出冲积扇相、辫状河相、湖泊三角洲相和湖泊相4类沉积相,整体表现为自下而上由粗到细、水深逐渐增大的退积序列。进一步详细的沉积亚相和微相分析、露头准层序叠置方式和水进-水退转换面的分析,在大红沟古近纪地层剖面上划分出6个三级层序和27个四级层序(准层序组),重塑了大红沟地区古近纪相对湖平面升降与沉积演变过程。
关键词(KeyWords): 柴达木盆地;古近系;高精度层序地层学
基金项目(Foundation): 中国地质调查局项目(1212011121261);; 国家自然科学基金项目(4092106240830212)
作者(Author): 宋博文;张克信;季军良;路晶芳;陈锐明;
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DOI:
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