| 塔里木盆地的古陨石坑 |
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| 引用本文： | 张传绩.塔里木盆地的古陨石坑[J].新疆石油地质,1997,18(1):38-39. |
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| 作者姓名： | 张传绩 |
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| 作者单位： | 地球物理勘探新疆石油管理局勘探开发研究院 克拉玛依834000 |
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| 摘 要： | 塔里木盆地东部满加尔地区在中新世曾发生一次大陨石撞击事件,形成了直径约15km深约2km的近圆形古陨石坑.坑内堆积了一套较粗的快速堆积物,构成了地震时间剖面上的盆状异常体,由于异常体的地震波传播速度较高,造成了下伏层穹窿状构造假像.
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| 关 键 词： | 塔里木盆地 满加尔 中新世 陨石 速度异常 地震陷阱 |
ANCIENT METEORITE CRATER IN TARIM BASIN. |
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| Zhang Chuanji,Senior Engineer,Geophysical Prospecting,Research Institute of Exploration and Development,Xinjiang Petroleum Administration Bureau,Karamay.ANCIENT METEORITE CRATER IN TARIM BASIN.[J].Xinjiang Petroleum Geology,1997,18(1):38-39. |
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| Authors: | Zhang Chuanji Senior Engineer Geophysical Prospecting Research Institute of Exploration and Development Xinjiang Petroleum Administration Bureau Karamay |
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| Affiliation: | Zhang Chuanji,Senior Engineer,Geophysical Prospecting,Research Institute of Exploration and Development,Xinjiang Petroleum Administration Bureau,Karamay 834000 |
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| Abstract: | An important meteorite collision event occurred in the Miocene in Mangar area, eastern Tarim basin, resulted in a subround ancient meteorite crater with diameter of 15 km and depth of 2 km. A suite of coarse deposits in meteorite crater resulted in basin-shaped seismic anomaly in time section which in turn caused the dome structure pseudomorph in the underlying strata due to its high seismic velocity. |
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| Keywords: | Tarim basin Mangar Paleocene Ancient Meteorite Velocity anomaly Seismic pitfall |
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