| 渤海晚冰期以来环境变化的化石介形类证据 |
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| 引用本文： | 吉磊,黄宝仁,项亮,杨世蓉.渤海晚冰期以来环境变化的化石介形类证据[J].古生物学报,1995(5). |
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| 作者姓名： | 吉磊 黄宝仁 项亮 杨世蓉 |
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| 作者单位： | 中国科学院南京地理与湖泊研究所，中国科学院南京地质古生物研究所 |
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| 基金项目： | 中国科学院“八五”重点科研项目 |
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| 摘 要： | 对渤海中央盆地Ｂ９２－３孔（芯长４２０ｃｍ）、Ｂ９２－１孔（芯长４２０ｃｍ）以及莱州湾Ｂ９２－２孔（芯长３３０ｃｍ）柱状样进行了介形类属种、丰度和分异度分析，并将Ｂ９２－３孔和Ｂ９２－１孔的介形类划分出６个组合带。根据渤、黄海地区不同沉积环境中现代介形类的分布，将剖面中的介形类分成滨岸－河口区的Ｓｉｎｏｃｙｔｈｅｒｉｄｅａ组合和近岸区的Ｍｕｎｓｅｙｅｌｌａ组合。按照地层１４Ｃ年代以及剖面中Ｓｉｎｏｃｙｔｈｅｒｉｄｅａ组合分子和Ｍｕｎｓｅｙｅｌｌａ组合分子的相对丰度变化，讨论了渤海晚冰期后期以来的古环境演化历史：晚冰期为河流、湖沼环境；大约１００００ａＢ．Ｐ．开始海侵，早全新世属滨岸－河口沉积；８７００ａＢ．Ｐ．前后开始水深加大，盐度提高；２４００ａＢＰ以后水深逐渐降低。
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| 关 键 词： | 介形类，渤海，环境变迁，晚冰期，全新世 |
EVIDENCE OF FOSSIL OSTRACODES FOR ENVIRONMENTAL CHANGES OF BOHAI SEA SINCE LATE GLACIAL PERIOD |
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| Ji Lei,Huang Bao-ren,Xiang Liang and Yang Shi-rongNanjing Institute of Geography and Limnology,Academia Sinic,Nanjing Nanjing Institute of Geology and Palaeontology,Academia Sinic,Nanjing.EVIDENCE OF FOSSIL OSTRACODES FOR ENVIRONMENTAL CHANGES OF BOHAI SEA SINCE LATE GLACIAL PERIOD[J].Acta Palaeontologica Sinica,1995(5). |
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| Authors: | Ji Lei Huang Bao-ren Xiang Liang and Yang Shi-rongNanjing Institute of Geography and Limnology Academia Sinic Nanjing Nanjing Institute of Geology and Palaeontology Academia Sinic Nanjing |
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| Institution: | Ji Lei, Huang Bao-ren, Xiang Liang and Yang Shi-rongNanjing Institute of Geography and Limnology,Academia Sinica,Nanjing 210008Nanjing Institute of Geology and Palaeontology,Academia Sinica,Nanjing 210008 |
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| Abstract: | Species, abundance and diversity of ostracodes from 3 cores in the Bobai Sea were analysized;among them, Core B92-3 (420cm in length) and Core B92-1 (420cm) were obtained from the Central Basin and Core B92-2(330cm)from the Laizhou Bay. Based on the relative abundance of ostracode species, 6 assemblages were recognized in the profiles of Core B92-3 and Core B92-1. |
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| Keywords: | ostracode Bohai Sea environmental change Late Glacial Period Holocene |
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