| 青藏高原东北缘1.2MaB.P.以来各阶段古气候演变 |
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| 引用本文： | 侯元才,许伟林,俞建,周亚芝. 青藏高原东北缘1.2MaB.P.以来各阶段古气候演变[J]. 青海国土经略, 2001, 0(Z1) |
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| 作者姓名： | 侯元才 许伟林 俞建 周亚芝 |
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| 作者单位： | 青海省地质调查院，青海省地质调查院，青海省地质调查院，青海省地质调查院 西宁 810012，西宁 810012，西宁 810012，西宁 810012 |
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| 摘 要： | 对青藏高原东北缘北祁连山、门源盆地、西宁盆地化隆、贵德—共和等地第四纪沉积物沉积特征、孢粉组合、~(14)C、TL(热释光)等测年资料,综合分析发现本区第四纪沉积物最早达1.2Ma,总结分析了1.2MaB.P.以来古气候演变历程,可以确定存在四期主要寒冷事件。
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| 关 键 词： | 第四纪 事件 古气候变迁 |
PALEOCLIMATE EVOLUTION IN VARIOUS STAGES SINCE 1.2 Ma.B.P.IN NORTHEASTERN QINGHAI-XIZANG PLATEAU |
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| Hou Yuancai,Xu Weilin,Yu Jian,Zhou Yazhi Qinghai Institute of Geological Survey,Xining. PALEOCLIMATE EVOLUTION IN VARIOUS STAGES SINCE 1.2 Ma.B.P.IN NORTHEASTERN QINGHAI-XIZANG PLATEAU[J]. QINGHAI GUOTU JINGLUE, 2001, 0(Z1) |
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| Authors: | Hou Yuancai Xu Weilin Yu Jian Zhou Yazhi Qinghai Institute of Geological Survey Xining |
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| Affiliation: | Hou Yuancai,Xu Weilin,Yu Jian,Zhou Yazhi Qinghai Institute of Geological Survey,Xining,810012 |
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| Abstract: | Through a series of studies on sedimental features, sporopollen assemblages, ~(14)C,thermal light, etc. of Quaternary sediments in Northeastern Qinghai - Xizang Plateau, including NorthQilian, Menyuan Basin, Xining Basin, Hualong, Guide, Gonghe, and so on, the authors found that theearlist Quaternary sediments occurred in 1.19 Ma. B. P.. They have further described the paleoclimateevolution since 1.2 Ma. B. P. and four main cold events. |
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| Keywords: | Quaternary period event paleoclimate evolution |
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