| Changhsingian sea level changes and brachiopod diversity in the upper Yangtze region |
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| 引用本文： | ZENG Yong,LIU Mei,WANG ZhanLei & CHEN Wei School of Resource,Engineering and Earth Science of China University of Mining and Technology,Xuzhou 221008,China. Changhsingian sea level changes and brachiopod diversity in the upper Yangtze region[J]. 中国科学D辑(英文版), 2007, 50(3): 343-349. DOI: 10.1007/s11430-007-2025-1 |
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| 作者姓名： | ZENG Yong LIU Mei WANG ZhanLei & CHEN Wei School of Resource Engineering and Earth Science of China University of Mining and Technology Xuzhou 221008 China |
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| 作者单位： | ZENG Yong，LIU Mei，WANG ZhanLei & CHEN Wei School of Resource，Engineering and Earth Science of China University of Mining and Technology，Xuzhou 221008，China |
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| 基金项目： | 国家自然科学基金;国家重点实验室基金 |
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| 摘 要： | Sedimentary environment and distribution of brachiopods during the Changhsingian in Xingwen, Si-chuan Province of the upper Yangtze region, are statistically analyzed. Changing regularity in diversity of brachiopod is synthetically investigated based on qualitative and quantitative analysis of transgres-sion-regression cycles. The results show that the diversity of brachiopods in this region in the trans-gression (aggradation) sequence is higher than that in the regression (progradation) sequence. The brachiopods in this area began to diversify in the early Changhsingian. And the species diversity had four peak stages which are respectively in the middle Early Changhsingian, late Early Changhsingian, early Late Changhsingian and late Late Changhsingian. The species diversity reached its highest in the late Late Changhsingian but this is followed by a sharp decrease at the end-hanghsingian, indicating the mass extinction of most brachiopod species which were prosperous in the Late Paleozoic.
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| 收稿时间： | 2005-06-05 |
| 修稿时间： | 2005-08-02 |
Changhsingian sea level changes and brachiopod diversity in the upper Yangtze region |
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| Zeng Yong,Liu Mei,Wang ZhanLei,Chen Wei. Changhsingian sea level changes and brachiopod diversity in the upper Yangtze region[J]. Science in China(Earth Sciences), 2007, 50(3): 343-349. DOI: 10.1007/s11430-007-2025-1 |
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| Authors: | Zeng Yong Liu Mei Wang ZhanLei Chen Wei |
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| Affiliation: | School of Resource, Engineering and Earth Science of China University of Mining and Technology, Xuzhou 221008, China |
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| Abstract: | Sedimentary environment and distribution of brachiopods during the Changhsingian in Xingwen, Si- chuan Province of the upper Yangtze region, are statistically analyzed. Changing regularity in diversity of brachiopod is synthetically investigated based on qualitative and quantitative analysis of transgres- sion-regression cycles. The results show that the diversity of brachiopods in this region in the trans- gression (aggradation) sequence is higher than that in the regression (progradation) sequence. The brachiopods in this area began to diversify in the early Changhsingian. And the species diversity had four peak stages which are respectively in the middle Early Changhsingian, late Early Changhsingian, early Late Changhsingian and late Late Changhsingian. The species diversity reached its highest in the late Late Changhsingian but this is followed by a sharp decrease at the end-hanghsingian, indicating the mass extinction of most brachiopod species which were prosperous in the Late Paleozoic. |
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| Keywords: | species diversity sea level change brachiopods Changhsingian upper Yangtze region |
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