| 云南罗平上石坎剖面中三叠世层序地层及沉积相分析 |
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| 引用本文： | 白建科,张启跃,黄金元,张克信,周长勇,吕涛,胡世学.云南罗平上石坎剖面中三叠世层序地层及沉积相分析[J].地层学杂志,2011(3):278-287. |
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| 作者姓名： | 白建科 张启跃 黄金元 张克信 周长勇 吕涛 胡世学 |
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| 作者单位： | 中国地质调查局成都地质调查中心;中国地质调查局西安地质调查中心;中国地质大学教育部生物与环境地质重点实验室;中国地质大学研究生院地球科学学院; |
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| 基金项目： | 中国区域地质调查项目(No.1212010610211); 国家自然科学基金(No.40621002,400830212)资助成果 |
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| 摘 要： | 在云南罗平上石坎剖面,产罗平生物群的中三叠统关岭组二段出露良好,为灰黑色纹层状含硅质结核、硅质条带泥晶灰岩和具滑塌构造、包卷层理等沉积构造为典型沉积。根据层序地层和沉积相分析,在上石坎剖面划分出2个三级沉积层序（SQ1和SQ2）,相对海平面经历了2次升与降的过程,SQ1表现为局限台地—开阔台地—台内盆地—开阔台地的演变...
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| 关 键 词： | 层序地层 沉积相 关岭组 中三叠统 上石坎剖面 罗平 云南 |
MIDDLE TRIASSIC SEQUENCE-STRATIGRAPHY AND SEDIMENTARY FACIES ANALYSIS AT THE SHANGSHIKAN SECTION OF LUOPING COUNTY,YUNNAN PROVINCE |
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| Institution: | BAI Jian-ke1)4),ZHANG Qi-yue 1),HUANG Jin-yuan 1),ZHANG Ke-xin2)3),ZHOU Chang-yong1),Lü Tao1) and HU Shi-xue1)1) Chengdu Center of China Geological Survey,Chengdu 610082,2) Graduate Academy of China University of Geoscience,department of earth science,Wuhan 430074,3) Biogeology and Environmental Geology of Ministry of Education,4) Xi'an Center of China Geological Survey,Xi'an 610082 |
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| Abstract: | The 2nd Member of the Guanling Formation of Middle Triassic age is well exposed at the Shangshikan section,Luoping,Yunnan Province.This succession is well known with the exceptionally preserved Luoping biota and lithologically characterized by dark grey,thin-to medium-bedded,laminated micrite with cherty nodules and bands.Both slump structures and convolute beddings are conspicuous on the outcrops.Here,two 3rd order sequences(SQ1 and SQ2) and their components such as parasequences,parasequence sets,system t... |
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| Keywords: | sequence stratigraphy facies analysis Guanling Formation Triassic Shangshikan section Luoping Yunnan |
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