| Depositional Architecture and Evolution of Late Permian Reefs in Ziyun County,Southern Guizhou, China |
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| 作者姓名： | Lu Yongchao Li Sitian Xie Xinong |
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| 作者单位： | Lu Yongchao Li Sitian Xie Xinong (Faculty of Earth Resources，China University of Geosciences，Wuhan 430074) Zhou Yaoqi (Department of Geology，University of Petroleum，Dongying 257062) |
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| 摘 要： | INTRODUCTIONPethenreefsarewidelydistributedinSouthetna,espeCiallyinsouthernGulzhouandnorth~ternGUanghProvince,wherenamusreefsoccurandareWellexposed.TheUpperPenmanreefinZiyUnChamy,southernG~uisoneofthehotdevelopedandexposedhairierreefsinthearea(WangandFan,1994).DuetoitSspedaltectonic--geographicpositionandcompletefactesbeltd~iation,thebatherreefshavearousedagreatinterestamonggeologistS.SpstelnaticinvestigationandstudyonthebarrierreefshaveaammadebymanygeologistSsince197ds(LiuandGao,…
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Depositional Architecture and Evolution of Late Permian Reefs in Ziyun County,Southern Guizhou, China |
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| Lu Yongchao Li Sitian Xie Xinong.Depositional Architecture and Evolution of Late Permian Reefs in Ziyun County,Southern Guizhou, China[J].Journal of China University of Geosciences,1996(1). |
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| Authors: | Lu Yongchao Li Sitian Xie Xinong |
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| Abstract: | The uppermost Permian reef complex in Ziyun County, southern Guizhou occurs as a third-order depositional sequence developed in the platform marginal break zone during the Late Permian transgressive period This paper deals with the evolution of the third-order sequence and depositional arthitecture of the sequence stratigraphic units with the analysis of outcrop sequence stratigraphy and chemostratigraphy. Thirteen parasequences which belong to four system tracts are recognized. According to their genetic facies features,three growth strategies of reef accrete from the systems tracts during sea level changes are distinguished as keep-up reefs, give-up reefs and catch-up reefs. In combination with an absolute water depth analysis by chemostratigraphic method, we establish an entire sea level curve of the third-order sequence and discuss its evolution and depositional response. |
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| Keywords: | sequence stratigraphy reef growth strategy aggrading reefs sea level curve |
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