QUERY ON THE NEOCATHAYSIAN FROM THE CONTRAST WITH SICHUAN BASIN AND JIANGHAN SUBSIDENCE AREA
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摘要: 以四川盆地和江汉沉降区作为典型, 剖释华夏系及新华夏系的内涵, 用以探索、研究中国东部的大地构造特征。四川盆地是上叠在上扬子准地台基础上发育起来的晚三叠世-侏罗纪大型坳褶盆地, 是华夏系第三沉降褶带中的一个典型盆地; 而江汉沉降区则是上叠在中扬子褶皱带上发展起来的白垩-第三纪断陷区, 是新华夏系第二断陷带中的一个典型沉降区。两者属于不同世代、不同性质的盆地, 其间存在广泛的构造不整合。李四光所说的新华夏系"三隆"、"三坳", 其实是中国东部乃至东亚地区一个巨型的复合构造区带, 它包括了华夏系及新华夏系的叠置复合。研究结果证明中华夏系不存在, 它是华夏系的变种。为了正确地描述中国东部大地构造的基本特征, 有必要进一步明确华夏系及新华夏系的内在含义。Abstract: The Sichuan Basin which superimposed on the upper Yangtze Paraplatform during Late Triassic-Jurassic is a large downwarping basin, being a typical basin in the third subsidence zone in Cathaysian.The Jianghan subsidence which superimposed on the fold belt of middle Yangtze during Cretaceous to Tertiary is a rift zone, and is a typical subsidence zone of the second subsidence belt of Neocathaysian. They belong to different basins in time and characteristics, and have extensive structural unconformity. The Neocathaysian three uplifts and three depressions, which put forward by Professor LI Si-guang, is a huge complex tectonic zone, and include stacked composite between Cathaysian and Neocathaysian. The research results prove that the Meso-cathaysian did not exist, for it is just a variation of Cathaysian. In order to correctly describe the basic tectonic characteristics of Eastern China, it's necessary to further clarify the meaning of Cathaysian and Neocathaysian.
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Key words:
- Sichuan Basin /
- Jianghan subsidence zone /
- Eastern China /
- Cathaysian /
- Neocathaysian /
- structural unconformity
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图 1 四川盆地中新生界地层综合柱状图[6]
Figure 1. Stratigraphic integrated histogram of Sichuan Basin during Mesozoic-Cenozoic
图 7 早侏罗世东岳庙期岩相分区略图[6]
Figure 7. The facies partition sketch map of Dongyuemiao period in Early Jurassic
图 8 四川盆地上、下沙溪庙组沉积展布图[6]
Figure 8. Deposition exhibition map of Upper Shaximiao Formation and Lower Shaximiao Formation in Sichuan Basin
图 9 四川盆地上侏罗统蓬莱镇组等厚线图[6]
Figure 9. An isopach map of Upper Jurassic Penglaizhen Formation in Sichuan Basin
图 15 四川盆地构造分区略图[6]
①—龙门山;②—城口;③—安宁河;④—彭灌;⑤—华蓥山;⑥—建始-郁江;⑦—普渡河-小江;⑧—遵义-松坎;⑨—峨眉山-瓦山;⑩—营山;⑪—万源;⑫—甘洛-汉源;⑬ —龙泉山;Ⅱ1—川东高陡褶带;Ⅱ2—川南低陡褶带;Ⅱ3—川中平缓褶带;Ⅱ4—川西南低陡褶带;Ⅱ5—川北低平褶带;Ⅱ6—川西低隆褶带;Ⅱ7—龙门山台缘断褶带;Ⅱ8—米苍山台缘凸起;Ⅱ9—大巴山台缘断褶带;Ⅱ10—八面山断褶带;Ⅱ11—娄山断褶带;Ⅱ12—峨眉山、凉山断褶带;Ⅱ13—西昌盆地(凹陷)
Figure 15. Tectonic zoning map of Sichuan Basin
表 1 江汉沉降区地层对比
Table 1. Stratigraphic correlation table of Jianghan subsidence area
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[1] 李四光.受了歪曲的亚洲大陆[J].地质论评, 1951, 16(1): 1~5. http://www.cnki.com.cn/Article/CJFDTOTAL-DZLP195101000.htmLI Si-guang. The distorted continent of Asia[J]. Geological Review, 1951, 16(1): 1~5. http://www.cnki.com.cn/Article/CJFDTOTAL-DZLP195101000.htm [2] 李四光.地质力学概论[M].北京:科学出版社, 1973.LI Si-guang. Introduction of geomechanics[M]. Beijing: Scientific Press, 1973. [3] 林宗满.论中国东部中新生代大地构造的基本特征[J].地质力学学报, 2010, 16(3): 206~259. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20100303&journal_id=dzlxxbLIN Zong-man. General characteristics of the Mesozoic tectonics in eastern China[J]. Journal of Geomachanies, 2010, 16(3): 206~259. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20100303&journal_id=dzlxxb [4] 林宗满.郯城—庐江断裂基本特征及其控盆作用[J].地质力学学报, 2011, 17(4): 322~337. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20110403&journal_id=dzlxxbLIN Zong-man. Charachteristics of Tanchang-Lujiang Fault and its rote on basin controlling[J]. Journal of Geomechanics, 2011, 17(4): 322~337. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20110403&journal_id=dzlxxb [5] 谭忠福.中国东部新华夏系[M].武汉:中国地质大学出版社, 1989.TAN Zhong-fu, et al. The Neocathaysian of east China[M]. Wuhan: China University of Geosciences Press, 1989. [6] 地质矿产部西南石油地质局地质综合研究大队. 四川盆地构造体系成生发展及其对油气聚集的控制[R]. 成都: 地质矿产部西南石油地质局地质综合研究大队, 1983.Geological Comprehensive Research Institute of Southwest Petroleum Geology Bureau, Ministry of Geology and Mineral Resources. Formation and development of tectonic system in Sichuan Basin and its controlling to hydrocarbon accumulation[R]. Chengdu: Geological Comprehensive Research Institute of Southwest Petroleum Geology Bureau, Ministry of Geology and Mineral Resources, 1983. [7] 林宗满.楚雄盆地油气资源亟待勘查发现[J].地质力学学报, 2012, 18(4):359~378. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20120402&journal_id=dzlxxbLIN Zong-man. A demanding development to hydrocarbon resources in Chuxiong Basin[J]. Journal of Geomechanics, 2012, 18(4):359~378. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20120402&journal_id=dzlxxb [8] 关士聪. 中国东部中、新生代陆相沉积、构造与油气[C]//石油地质文集第一集, 1981.GUAN Shi-cong. The Mesozoic-Cenozoic sedimentation, tectonics and hydrocarbon in eastern China[C]//Petroleum Geology Collection Episode 1, 1981. [9] 林宗满. 论江汉沉降区成生、发展与找油[C]//石油地质文集第一集, 1981.LIN Zong-man. Discussing on the growing, development and hydrocarbon exploration in Jianghan sedimentary area[C]//Petroleum Geology Collection Episode 1, 1981. [10] 地质部第四物探大队. 江汉盆地石油物探普查总结报告[R]. 新乡: 地质部第四物探大队, 1970.The No. 4 Geophysical Exploration Group of the Ministry of Geology. Summary report of petroleum geophysical reconnaissance in Jianghan Basin[R]. Xinxiang: The No. 4 Geophysical Exploration Group of the Ministry of Geology, 1970. [11] 李述靖, 郑达兴, 等. 中国主要构造体系的划分及特征概述[C]//中国分省构造体系研究文集. 北京: 地质出版社, 1985.LI Shu-jing, ZHENG Da-xing, et al. The overview of classification and characteristics of major tectonic system of China[C]//The research collection of provincial structural system of China. Beijing: Geological Publishing House, 1985. [12] 王治顺, 刘浩龙.构造体系各论:中国典型构造体系分论[M].北京:地质出版社, 1994.WANG Zhi-shun, LIU Hao-long. Discussions on tectonic systems: Partly discussion of the typical tectonic system[M]. Beijing: Geological Publishing House, 1994. [13] 邓乃恭. 中生代华夏类型和郯庐断裂系的特征与形成机制[C]//构造地质论丛. 北京: 地质出版社, 1984.DENG Nai-gong. The Mesozoic formation mechanism of Cathaysian styles and characteristics and Tanlu fault system[C]//Structural geology forum. Beijing: Geological Publishing House, 1984. [14] 李四光.天文、地质、古生物资料摘要(初稿)[M].北京:科学出版社, 1972.LI Si-guang. The brief of astronomy, geology and paleontology (draft)[M]. Beijing: Scientific Press, 1972.