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Xiuyan crater, China: Impact origin confirmed
  • ISSN号:1001-6538
  • 期刊名称:科学通报(英文版)
  • 时间:0
  • 页码:1777-1781
  • 语言:中文
  • 分类:P68[天文地球—地质学] TS933.21[轻工技术与工程]
  • 作者机构:[1]Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
  • 相关基金:The drilling was conducted by the Team No. 404 of the Bureau of Liaoning Metallurgy Geological Survey. The government of Xiuyan County provides assistance for this study. Thanks for the constructive comments and suggestions from the reviewers. This work was supported by the Knowedge Innovation Program of the Chinese Academy of Sciences (KZCX2-YW-140), The National Natural Science Foundation of China (40872041) and the President Foundation of Chinese Academy of Sciences (2007). This is contribution No. IS-1121 from GIGCAS.
  • 相关项目:岫岩陨石坑岩石矿物冲击效应
中文摘要:

保存得很好的 1.8-km-diameter Xiuyan 坑位于北中国的 Liaodong 半岛的北部分的低山脉山区域。最近,在坑的中心的 307-m-deep 地上凿穿变得可得到。在渗透 107 m 以后湖的沉积,一个角砾岩透镜在厚度的大约 188 m 被遇到。坑充满角砾岩是岩石 clasts 和碎片的存款差不多变形吃惊。在在在地下室岩石中发现的石英的坑,融化吃惊的岩石,和 PDF 以内的地质的结构和 stratigraphic 配置的特征关门到坑边界并且为 Xiuyan 坑的影响起源在坑充满角砾岩提供清楚的证据。

英文摘要:

The well-preserved 1.8-km-diameter Xiuyan crater is located in the low mountain-hill region of the northern part of Liaodong Peninsula of northern China. Recently, a 307-m-deep borehole at the centre of crater became available. After penetrating 107 m lacustrine sediments, a breccia lens about 188 m in thickness was encountered. The crater-fill breccia is deposits of rock clasts and fragments more or less shock-metamorphosed. The features of geological structure and stratigraphic configuration within the crater, shock-melted rocks, and PDFs in quartz found in the basement rocks close to the crater rim and in the crater-fill breccia provide clear evidence for an impact origin of the Xiuyan crater.

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