| 西藏那曲地区孔玛盆地第四纪昆虫化石的发现及意义 |
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| 引用本文： | 邵兆刚1,孟宪刚1,朱大岗1,杨朝斌2,雷伟志1,王 津1,韩建恩1,余 佳1,孟庆伟1,钱 程1. 西藏那曲地区孔玛盆地第四纪昆虫化石的发现及意义[J]. 地质通报, 2010, 29(0203): 254-258. |
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| 作者姓名： | 邵兆刚1 孟宪刚1 朱大岗1 杨朝斌2 雷伟志1 王 津1 韩建恩1 余 佳1 孟庆伟1 钱 程1 |
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| 作者单位： | 1. 中国地质科学院地质力学研究所,北京100081; 2. 西藏自治区国土资源厅,西藏 拉萨 850000 |
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| 摘 要： | 首次在西藏那曲地区孔玛盆地第四系湖相沉积地层中发现了昆虫化石，对昆虫化石的特征和产出层位进行了描述，昆虫化石经初步鉴定分别属于膜翅目、双翅目和异翅目。采集了该套地层的ESR年代学样品，测试结果表明该套地层的时代为早中更新世。昆虫的分布演化与环境关系密切。这一发现为研究青藏高原第四纪以来的生物进化，湖泊、河流演化，气候变化，古地理、古环境变迁，第四系地层划分等提供了新资料。
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| 关 键 词： | 青藏高原 孔玛盆地 昆虫化石 第四纪 |
Discovery and significance of insects fossil in the Quaternary Kongma basin,Naqu, Tibet,China |
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| SHAO Zhao-gang1, MENG Xian-gang1, ZHU Da-gang1, YANG Chao-bin2,LEI Wei-zhi1, WANG Jin1, HAN Jian-en1, YU Jia1, MENG Qing-wei1, Qian Cheng1. Discovery and significance of insects fossil in the Quaternary Kongma basin, Naqu, Tibet, China[J]. Geological Bulletin of China, 2010, 29(0203): 254-258. |
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| Authors: | SHAO Zhao-gang1 MENG Xian-gang1 ZHU Da-gang1 YANG Chao-bin2 LEI Wei-zhi1 WANG Jin1 HAN Jian-en1 YU Jia1 MENG Qing-wei1 Qian Cheng1 |
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| Affiliation: | 1. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China;2. Land and Resources Department, Xizang(Tibet)Autonomous Region, Lhasa 850000, Tibet, China |
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| Abstract: | Recently insects fossil have been discovered in the Quaternary Kongma basin, Naqu, Tibet for the first time. Their basic features and the location are described. Primary identification suggests that the insects fossil belong to diptera，heteroptera and hymenoptera. The test results of ESR geochronology samples belong to Early midio-pleistocene. The discovery have provide new data for the organic evolution, the lake and river evolution, the climate change, the paleogeographic and the paleoenvironment changes, and the stratigraphic division of Quaternary. |
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| Keywords: | Qinghai-Tibet Plateau Kongma basin insects fossil Quaternary |
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