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Article Navigation >  Acta Sedimentologica Sinica  > 1997  >  15(4): 134-142

Chen Guoying, Sun Shurong, FangXiaomin, Kang Shichang. Heavy minerals and provenance of the Malan loess on the Qinghai -Xizang(Tibet) Plateau and its adjacent area[J]. Acta Sedimentologica Sinica, 1997, 15(4): 134-142.
Citation: Chen Guoying, Sun Shurong, FangXiaomin, Kang Shichang. Heavy minerals and provenance of the Malan loess on the Qinghai -Xizang(Tibet) Plateau and its adjacent area[J]. Acta Sedimentologica Sinica, 1997, 15(4): 134-142.
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Heavy minerals and provenance of the Malan loess on the Qinghai -Xizang(Tibet) Plateau and its adjacent area

  • 1 Dept.of Geology,Lanzhou Univ,Lanzhou,Gansu,730000,China;

  • 2 Fang Xiaomin,,Kang Shichang Dept.of Geography,Lanzhou University,Lanzhou,Gansu,730000,China

  • Received Date: 1995-12-18
  • Publish Date: 1997-12-10
  • Study of heavy minerals of the Malan loess on the Qinghai-Xizang Plateau and its adjacent areademonstrates that two loess depositional areas in heavy mineral can be clearly divided by the boundary ofKunlun Mts.- Buqing Mts- Xiqing Shan- Min Shan.To the north of this boundary, heavy minerals inthe Malan loess are hypometamorphic rocks and come chiefly from the Asian inland desert-gobi area;Tothe south, they are characterized by weathered parent rocks of volcanic, intrusive,and hypermetamorphicrocks and come from tills and periglacial sediments on the Qinghai-Xizang Plateau.The regional differ-ence in material in the sourec area, together with the effect of particular landform of the Plateau and thedifference of atmospheric circulation, may be mainly responsible for the difference of heavy minerals andprovenance of the Chinese Malan loess.
  • [1] (1) 郑东生等.黄土与环境.北京: 科学出版社, 1985, 208～219.

    (2) 陈国英,陈发虎.兰州九洲台黄土剖面重矿物研究.兰州大学学报, 1993, 29(4): 257～264.

    (3) 方小敏.青藏高原东部及邻区马兰黄土成因与来耗的初步研究.中国科学 (B辑), 1994, 24(5): 539～546.

    (4) 成都地质学院岩石教研室编.沉积岩石学附编.北京: 中国工业出版社, 1961, 128～129.

    (5) 中国地质科学院主编.中华人民共和国地质图集.中国地质图制印厂, 1973.

    (6) 叶笃正,高由禧等.青藏高原气象学.北京: 科学出版社, 1979,208～219.
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  • Received:  1995-12-18
  • Published:  1997-12-10

Heavy minerals and provenance of the Malan loess on the Qinghai -Xizang(Tibet) Plateau and its adjacent area

  • 1 Dept.of Geology,Lanzhou Univ,Lanzhou,Gansu,730000,China;
  • 2 Fang Xiaomin,,Kang Shichang Dept.of Geography,Lanzhou University,Lanzhou,Gansu,730000,China
  • Received Date: 1995-12-18
  • Publish Date: 1997-12-10

Abstract: Study of heavy minerals of the Malan loess on the Qinghai-Xizang Plateau and its adjacent areademonstrates that two loess depositional areas in heavy mineral can be clearly divided by the boundary ofKunlun Mts.- Buqing Mts- Xiqing Shan- Min Shan.To the north of this boundary, heavy minerals inthe Malan loess are hypometamorphic rocks and come chiefly from the Asian inland desert-gobi area;Tothe south, they are characterized by weathered parent rocks of volcanic, intrusive,and hypermetamorphicrocks and come from tills and periglacial sediments on the Qinghai-Xizang Plateau.The regional differ-ence in material in the sourec area, together with the effect of particular landform of the Plateau and thedifference of atmospheric circulation, may be mainly responsible for the difference of heavy minerals andprovenance of the Chinese Malan loess.

Chen Guoying, Sun Shurong, FangXiaomin, Kang Shichang. Heavy minerals and provenance of the Malan loess on the Qinghai -Xizang(Tibet) Plateau and its adjacent area[J]. Acta Sedimentologica Sinica, 1997, 15(4): 134-142.
Citation: Chen Guoying, Sun Shurong, FangXiaomin, Kang Shichang. Heavy minerals and provenance of the Malan loess on the Qinghai -Xizang(Tibet) Plateau and its adjacent area[J]. Acta Sedimentologica Sinica, 1997, 15(4): 134-142.
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