The Theory of Event Stratigraphic Unit and Its Practicing—Take the Event Group across the Sinian-Cambrian Boundary of Middle Yangtze Platform as an Example
Received date: 2009-04-07
Revised date: 2009-09-07
Online published: 2010-03-10
Based on the development of event stratigraphy, this paper firstly suggests a series of event stratigraphic units which contain Event Surface, Event Bed, Event Zone, Event Association and Event Gathering and their meaning and characteristics have been determined. New event stratigraphic units are applied in the research of Event Group across the Sinian-Cambrian Boundary of Middle Yangtze Platform. The studies suggest that there are two Event Surfaces, i.e. biomass extinction and flooding Event Surfaces, one Event Bed, namely clay Event Bed, four Event Zones, i.e. sea-level dropping, turbidity, sea-level rising and anoxic Event Zone, three Event Associations, namely sea-level dropping-turbidity, extraterrestrial impacting-biomass extinction and sea-level rising-anoxic Event Association across the Boundary. They form an Event Gathering. The oil-bearing analysis of Event Strata indicates that sea-level rising-anoxic Event Association is favorable to producing oil, while the sea-level dropping- turbidity Event Association may be favorable to reserving oil and gas.
XIAO Zhuan-Tao . The Theory of Event Stratigraphic Unit and Its Practicing—Take the Event Group across the Sinian-Cambrian Boundary of Middle Yangtze Platform as an Example[J]. Advances in Earth Science, 2010 , 25(3) : 290 -296 . DOI: 10.11867/j.issn.1001-8166.2010.03.0290
[1] Ager D V.The Nature of the Stratigraphic Record[M]. London:Macmillan, 1973:12-230.
[2] Alvarez L W, Asaro F, Michel H V, et al. Anomalous iridium levels at the Cretaceous/Tertiary boundary at Gubbio, Italy:Negative results of tests for a supernova origin[C]//Christensen W K, Birkelund T.Cretaceous-Tertiary Boundary Event Syposium 2. Copenhagen: University of Copenhagen, 1979: 69.
[3] Alvarez L W. Extraterrestrial cause for the Cretaceous-Tertiary boundary extinction[J].Science,1980, 208:1 095-1 108.
[4] Wu Ruitang, Zhang Shouxin,eds. Modern Stratigraphy[M]. Wuhan: China University of Geoscience Press, 1989:131-146. [吴瑞棠,张守信编著.现代地层学[M].武汉:中国地质大学出版社，1989:131-146.][5] Kauffman E G．Concepts and methods of high-resolution event stratigraphy[J].Annual Review of Earth and Planetary Sciences,1988，16：605-654．
[6] Pu Xinchun，Zhou Haoda，Wang Xilin，et al,eds.Cambrian Lithofacies Paleogeography and Mineralization in South China[M]. Beijing:Geological Publishing House，1993:40-54. [蒲心纯，周浩达，王熙林，等著.中国南方寒武纪岩相古地理与成矿作用[M] .北京:地质出版社，1993:40-54.]
[7] Ding Weiming，Qian Yi. Late Sinian to early Cambrian small shelly fossils from Yangjiaping, Shimen, Huanan[J].Acta Micropalaeontologica Sinica，1988，5（1）：39-55. [丁伟明，钱逸.湖南石门杨家坪晚震旦世至早寒武世小壳化石[J] .微体古生物学报，1988，5 (1): 39-55.]
[8] Xu Jinghua，Sun Shu，Krahenbuhl U，et al.Strangelove ocean before the Cambrian explosion[J].Chinese Journal of Geology，1986，(1): 1-6. [许靖华，孙枢，克雷恩比U，等.寒武纪生物爆发前的死劫难海洋[J].地质科学，1986，(1): 1-6]
[9] Wang Xiaofeng，Xiang Liwen，Ni Shizhao，et al，eds. Biostratigraphy of the Yangtze Gorge Area—Early Palaeozoic Era[M]. Beijing: Geological Publishing House，1987:6-36. [汪啸风，项礼文，倪世钊,等主编.长江三峡生物地层学——早古生代分册[M] .北京:地质出版社，1987:6-36]
[10] Xu Daoyi，Zhang Qinwen，Sun Yiyin. Biomasss extinction—A fundamental indicator for major natural divisions of geological history [J].Acta Geological Sinica，1987，61(3): 195-203.[徐道一，张勤文，孙亦因.古生物大量绝灭——地质历史发展阶段划分的基本标志[J] .地质学报，1987，61 (3): 195-203.]
[11] Xiao Chuantao，Wu Jianhui, Hu Mingyi, et al.Cambrian Sequence-stratigraphy in the Yangjiaping District of Northwestern Hunan[J].Journal of Stratigraphy,1998，22（2）：94-101. [肖传桃， 吴健辉， 胡明毅,等.湘西北杨家坪寒武纪层序地层[J] .地层学杂志，1998，22（2）：94-101.]
[12] Xiao Chuantao，Jiang Yanwen, Zhu Zhongde, et al. Early cambrian ecostratigraphy and palaeobiogeography of the Jianghan Basin[J].Geological Review,1995，41（1）：82-91.[肖传桃，姜衍文，朱忠德，等.江汉盆地早寒武世生态地层及生物古地理特征[J] .地质论评，1995，41(1):82-91.]
[13] Fan Delian, Ye Jie，Yang Ruiying,et al. Huang Zhongxiang. The geological events and ore mineralization nearby the precambrian-Cambrian boundary in Yangtze platform.[J].Acta Sedimentologica Sinica，1987，5 (3): 81-92.[范德廉，叶杰，杨瑞英,等.扬子地台前寒武寒武纪界线附近的地质事件与成矿作用[J] .沉积学报，1987，5 (3): 81-92.]
[14] Guo Chengxian, Zhu Zhongde,Hu Mingyi,et al. Sedimentary environments of early Cambrian at Yangjiaping,Shimen[J].Oil & Gas Geology，1993,14(4):326-330. [郭成贤，朱忠德，胡明毅，等.石门杨家坪早寒武世沉积环境[J].石油与天然气地质，1993,14(4):326-330.]
[15] Zhu Zhongde,Hu Mingyi, Xiao Chuantao,et al.Study on Oil Geology of Upper Sinian-Ordovician in Southern Hubei and Northwestern Hunan[M].Beijing: The Geological Publishing House, 1995:94-103.[朱忠德，胡明毅，肖传桃,等著.鄂西南湘西北地区上震旦统至奥陶系石油地质研究[M].北京：地质出版社，1995:94-103.]
/
| 〈 |
|
〉 |
甘公网安备62010202000687
