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首页> 外文期刊>Earth and Planetary Science Letters: A Letter Journal Devoted to the Development in Time of the Earth and Planetary System >Rapid exhumation at similar to 8 Ma on the Liupan Shan thrust fault from apatite fission-track thermochronology: Implications for growth of the northeastern Tibetan Plateau margin
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Rapid exhumation at similar to 8 Ma on the Liupan Shan thrust fault from apatite fission-track thermochronology: Implications for growth of the northeastern Tibetan Plateau margin

机译：磷灰石裂变径迹热年代学在六盘山逆冲断层上以8 Ma的速率快速发掘：对青藏高原东北缘生长的影响

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摘要

The Liupan Shan Mountain is one of the outermost ranges in northeastern Tibetan Plateau. The onset of its uplift provides insight on whether the plateau grew sequentially outward or broad areas of the plateau deformed simultaneously. The apatite fission-track method can be used to date rapid cooling as the result of unroofing of rocks in response to tectonically induced vertical motion. Fission-track data from apatite in Early Cretaceous sedimentary strata exposed on the hanging-wall of Liupan Shan thrust fault in northeastern Tibet suggest that a late Cenozoic rapid cooling events occurred at 7.3-8.2 Ma or similar to 8 Ma. This age apparently dates fault activity of the Liupan Shan thrust in response to northeastward growth of the Tibetan Plateau uplift and lateral growth, which continues today. Numerous studies of the Tibetan Plateau suggest that the onset of deformation in eastern and northern margin of Tibetan Plateau occurred in the latest Miocene. (c) 2006 Elsevier B.V. All rights reserved.
机译：六盘山是青藏高原东北部最远的山脉之一。其隆起的开始提供了关于高原是顺序向外生长还是高原的宽广区域同时变形的见解。磷灰石裂变径迹法可用于对由于构造诱导的垂直运动而对岩石进行无屋顶化而导致的快速冷却。西藏东北六盘山逆冲断层悬挂壁上暴露的早白垩世沉积地层中磷灰石的裂变径迹数据表明，晚新生代的一次快速冷却事件发生在7.3-8.2 Ma或接近8 Ma。这个年龄显然是对六盘山逆冲断层活动的响应，以响应青藏高原隆升的东北向增长和横向增长，这一趋势一直持续到今天。青藏高原的大量研究表明，青藏高原东部和北部边缘的变形开始于最近的中新世。 （c）2006 Elsevier B.V.保留所有权利。

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