| 贵州罗甸中三叠统边阳组风暴沉积的发现 |
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| 引用本文： | 周传明,夏邦栋.贵州罗甸中三叠统边阳组风暴沉积的发现[J].地质科学,1996,31(2):193-195. |
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| 作者姓名： | 周传明 夏邦栋 |
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| 作者单位： | 1. 中国科学院地质研究所 北京 100029;2. 南京大学地球科学系 南京 210093 |
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| 摘 要： | 贵州南部罗甸地区中三叠统发育—套巨厚的砂、泥韵律的海相碎屑沉积,其岩性主要为砂岩、粉砂岩、页岩和泥岩之组合,曾被认为是典型的浊积岩(苟汉成,1985;贺自爱,1986)。这套沉积在该地区命名为边阳组,命名地点在罗甸县边阳。边阳组下伏地层为新苑组(T2x),上覆地层为把南组(T3b)。经过对该区较详细的野外观测,发现了丘状交错层理,具蹼状构造的垂直U型潜穴等风暴沉积的证据,表明边阳组并非全为浊积岩,这为重新认识该区的古地理环境提供了信息。
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| 关 键 词： | 贵州罗甸 边阳组 风暴沉积 丘状交错层理 垂直U型潜穴 |
| 收稿时间： | 1995-01-15 |
| 修稿时间： | 1995-01-15; |
DISCOVERY OF STORM DEPOSITS IN LUODIAN AREA, GUIZHOU PROVINCE,SOUTHWEST CHINA |
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| Zhou Weiming.DISCOVERY OF STORM DEPOSITS IN LUODIAN AREA, GUIZHOU PROVINCE,SOUTHWEST CHINA[J].Chinese Journal of Geology,1996,31(2):193-195. |
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| Authors: | Zhou Weiming |
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| Institution: | 1. Institute of Geology, Chinese Academy of Sciences, Beijing 100029;2. Department of Earth Sciences, Nanjing University, Nanjing, 210093 |
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| Abstract: | The middle Triassic sandy and muddy rhythmic detrital deposits in Luodian area,Guizhou province was believed to be turbidites according to previous researches.On the basis of the discoveries of Hummocky cross-stratification, U-shaped burrow,wave ripple in the upper-middle of mid-Triassic, it is obvious that there exists storm deposits in Luodian area. It is the result of tectonic uplift of flysch basin. |
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| Keywords: | Luodian county Guizhou province Bianyang Formation Storm deposit Hummocky cross-stratification Vertical U-shaped burrow |
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