| Heinrich 3事件的实证:浙江舟山群岛泥裂 |
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| 引用本文： | 贾楠,孙立广,袁林喜,谢周清.Heinrich 3事件的实证:浙江舟山群岛泥裂[J].地学前缘,2009,16(6):146. |
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| 作者姓名： | 贾楠 孙立广 袁林喜 谢周清 |
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| 作者单位： | 中国科学技术大学,地球与空间学院,安徽,合肥,230026 |
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 在浙江舟山朱家尖岛观音湾海滩地区发现了大量发育良好,深达60cm的泥裂构造。年代学结果表明,该泥裂构造形成于31.2～30.4kaBP期间。孢粉学和粘土矿物学研究结果表明,该构造揭示了研究区域曾经发生的一次强烈的冷干事件,事件发生时植被衰落。这极可能是第四纪晚期全球范围内发生的气候快速变冷事件Heinrich3事件的一个直接的景观证据,为第四纪气候快速变化的研究提供了一种新的研究对象。
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| 关 键 词： | 舟山群岛 泥裂 Heinrich 3事件 气候变化 |
Direct evidence of Heinrich event 3:Desiccation crack in Zhoushan Islands,Zhejiang Province |
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| Jia Nan,Sun Liguang,Yuan Linxi,Xie Zhouqing.Direct evidence of Heinrich event 3:Desiccation crack in Zhoushan Islands,Zhejiang Province[J].Earth Science Frontiers,2009,16(6):146. |
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| Authors: | Jia Nan Sun Liguang Yuan Linxi Xie Zhouqing |
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| Institution: | Jia Nan,Sun Liguang,Yuan Linxi,Xie Zhouqing School of Earth and Space Sciences,University of Science and Technology of China,Hefei 230026,China |
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| Abstract: | The large desiccation cracks,which are up to 60 cm deep,were developed on the intertidal zone of the Guanyin Bay,Zhujiajian Island,Zhejiang Province.The results from chronological,palynological and mineralogical analysis show that the time of the formation of the desiccation crack is coincident with the period of the environmental change from warm and humid to cold and dry.The desiccation crack corresponds to an abrupt climate shift event during 31.2-30.4 ka BP,with a decline in vegetation.It is most probab... |
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| Keywords: | Zhoushan Islands desiccation cracks Heinrich event 3 climate shift |
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