| 中国早震旦世至晚三叠世海陆变化的定量研究 |
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| 引用本文： | 李仲.中国早震旦世至晚三叠世海陆变化的定量研究[J].地质科学,1992,0(4):409-411. |
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| 作者姓名： | 李仲 |
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| 作者单位： | 中国科学院地质研究所, 北京 100029 |
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| 摘 要： | 在野外经常能看到一些具有“韵律”性的沉积。Ramsbottom(引自T.Neville George,1978)运用造海运动的观点对这一地质现象进行了成功的解释,因此这一学说引起了越来越多的地质工作者的重视。造海运动,也就是全球海平面的变化,在地质历史中,对沉积作用具有重要的影响。对造海运动的研究,无疑也会作为一种手段,更好地从事地层对比、古环境、古气候以及成矿时代等方面的研究。
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| 关 键 词： | 造海运动 海侵 海退 计点求积法 |
| 收稿时间： | 1991-10-01 |
| 修稿时间： | 1991-10-01; |
QUANTITATIVE STUDY ON EUSTATISM IN CHINA FROM EARL Y SINIAN TO LATE TRIASSIC |
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| Li Zhong.QUANTITATIVE STUDY ON EUSTATISM IN CHINA FROM EARL Y SINIAN TO LATE TRIASSIC[J].Chinese Journal of Geology,1992,0(4):409-411. |
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| Authors: | Li Zhong |
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| Institution: | Institute of Geology, Academia Sinica, Beijing |
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| Abstract: | This paper deals mainly with the result of quantitative study on eustatic movements in China. Based on information from the Atlas of Paleogeogrnphy of China edited by Wang Hongzhen(1985), paleoeontinental and paleooceanic areas of China from the Early Sinian to the Late Triassic is calculated by using point--counting method and two curves representing eustatic changes through geological time were obtained. These two curve diagrams are for different study regions, one covers whole China and the other focused on the Yangtze Platform. It is found that these two curve diagrams are of certain similarities and reveal some tectonic movement features during the periods. In this study, a Dovonian stratigraphie section in Dushan. Guizhou Province, is studied and a diagram of eustatic tendency during the time is plotted qualitatively, it is concluded that the eustatic tendency in this local area is coincided with that in the Yangtze Platform. |
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| Keywords: | Thalassogenesis Transgression regression point-to volume calculation method |
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