| 河南李官桥盆地“红层”划分的意见 |
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| 引用本文： | 周世全,韩世敬,张永才.河南李官桥盆地“红层”划分的意见[J].地质科学,1979,14(1):43-55. |
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| 作者姓名： | 周世全 韩世敬 张永才 |
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| 作者单位： | 河南省地质局第十二地质队 |
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| 摘 要： | 李官桥盆地位于秦岭东段南侧,横跨豫鄂两省边界,分布于淅川、均县境内,面积约700平方公里。盆地为一不对称向斜构造,地层倾角平缓,出露完好,化石丰富,是河南省下第三系的代表性地区(图1)。该区“红层”的研究,始于1930年,李捷、朱森在盆地内范庄、指甲坡发现属于始新世的哺乳动物、龟类化石后,将其定为范庄统,隶属第三纪。1961年河南省石油队,首次将该套“红层”划分为玉皇顶、大仓房、核桃园、上寺四组,时代归于第三-白垩纪。嗣后,中国科学院古脊椎动物与古人类研究所、湖北地质研究所、北京地质学院及豫十二地质队等单位,对地层和矿产做了大量工作,积累了丰富的资料(表1)。
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SUBDIVISION OF“RED BEDS”OF LIGUANQIAO BASIN, HENAN PROVINCE |
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| Zhou Shiquan,Han Shijing,Zhang Yongcai.SUBDIVISION OF“RED BEDS”OF LIGUANQIAO BASIN, HENAN PROVINCE[J].Chinese Journal of Geology,1979,14(1):43-55. |
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| Authors: | Zhou Shiquan Han Shijing Zhang Yongcai |
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| Institution: | Geologic Team 12 of Henan Geology Bureau |
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| Abstract: | The Liguanqiao basin is situated at the southeast edge of the Qin Ling Eanges in the border region between Henan and Hubei. The "Red Beds" overlying uncon-formably the Palaeozoic or even older strata is extensively developed in the basin. A careful study on the sections exposed there has enabled the authors of the present paper to eatablish the normal stratigraphical sequence and the geological age (Late Cretaceous to Tertiary) for the "Bed Beds". Palaeontologically and lithologically the "Red Beds" of Liguanqiao basin with a measured total thickness of about 2900 meters may be divided into six formations. |
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