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DOI:
地质力学学报:1999,5(4):24-36
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青藏高原晚新生代磁性地层研究
STUDY ON MAGNETOSTRATIGRAPHY IN QINGHAI-TIBETAN PLATEAU IN LATE CENOZOIC
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投稿时间:1999-08-03    
中文摘要: 本文较详细的论述了青藏高原晚新生代晚期的20多个地层剖面或钻孔的磁性地层极性期,得出了一批地层年代数据。如昆仑山口羌塘组为3.1MaBP~0.65MaBP,在该组中发现的三趾马化石为2.08MaBP;定日县贡巴组为2.3MaBP~1.9MaBP;札达盆地札达组和香孜组为6.15MaBP~3.4MaBP,3.4MaBP~1.25MaBP;理塘甲洼组为1.24MaBP~0.43MaBP,还得出吉隆三趾马化石年代约为5.0MaBP及第四纪早冰期年代,为研究青藏高原隆升的时间、幅度和古环境的变化提供年代学的尺度。
中文关键词: 青藏高原  晚新生代  磁性地层  古环境
Abstract:In this paper, the polarity epochs of some twenty and more sections or boreholes in Qinghai-Tibetan plateau in Late Cenozoic are discussed in detail, and thence we have the ages of the sediments involved. The Qiangtang Formation at Kunlun pass has an age of 3.1MaBP~0.65MaBP, the Hipperion sp. contained in it being of an age of 2.08MaBP.The Gongba Formation at Dingri county 2.31MaBP~1.90MaBP, the Zhada Formation and Xiangzi Formation in the Zhada Basin 6.15MaBP~3.40MaBP and 3.40MaBP~1.25MaBP respectively, and Jiawa Formation at Litang 1.24MaBP~0.43MaBP. And the age for the Hipperion guizhongensis sp. from Jilong is 5.0MaBP. The age of early Quaternary glaciation is obtained as well. Thus a chronological scale is provided for the study of the time, and rate of the uplifting of the Plateau as well as the consequent environmental changes.
文章编号:     中图分类号:P539.3    文献标志码:
基金项目:原地质矿产部"九五"重点科技项目(9501120)
引用文本:
钱方,1999.青藏高原晚新生代磁性地层研究[J].地质力学学报,5(4):24-36.DOI:
QIAN Fang,1999.STUDY ON MAGNETOSTRATIGRAPHY IN QINGHAI-TIBETAN PLATEAU IN LATE CENOZOIC[J].Journal of Geomechanics,5(4):24-36.DOI:

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