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Article Navigation >  Acta Sedimentologica Sinica  > 1998  >  16(3): 66-71

Xue Lianhua, Chen Guojun, Wang Qi, Shi Ji'an, Xiao Lixin, Yang Jun, Zhao Kebin. Cyclic Sequences and Depositional Systems in the Upper Cretaceous-Eogene of Southwest Tarim Basin[J]. Acta Sedimentologica Sinica, 1998, 16(3): 66-71.
Citation: Xue Lianhua, Chen Guojun, Wang Qi, Shi Ji'an, Xiao Lixin, Yang Jun, Zhao Kebin. Cyclic Sequences and Depositional Systems in the Upper Cretaceous-Eogene of Southwest Tarim Basin[J]. Acta Sedimentologica Sinica, 1998, 16(3): 66-71.
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Cyclic Sequences and Depositional Systems in the Upper Cretaceous-Eogene of Southwest Tarim Basin

  • 1.

    Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000;

  • 2.

    nstitute of Xinjiang Petroleum Administration Bureau Geolgical Survey, Urumqi 830011

  • Received Date: 1997-09-24
  • Rev Recd Date: 1998-01-15
  • Publish Date: 1998-12-10
  • Seven types high frequency cyclic sequences which have been distinguished in the Upper Cretaceous-Eogene marine carbonate of the southwest Tarim Basin are mainly as follows: undertidal carbonate ramp, platform, platform margin earbonate cyclic sequences and tidal flat cyclic equences which are clas-tic rock mainly. In the region, different kinds of high frequency cyclic sequences represented sedimenta-ry sequences of platform, shore bank and alluvial depositional system which deposited in specific paleo-geographic setting. In the vertical sections, high frequency cyclic sequences stacked upward, in which changing of the kinds of cyclic sequence reflects the evolution of sedimentary enviroment and facies. As a result, in the study area, high frequency sea level change affected on the sedimentary facies changes from the lower unit to the upper unit of high frequency cyclic sequence, and controlled the deposit pro-cession of cyclic sequence. The long periodic sea level changes controlled the stacking patterns of high frequency cyclic sequences, and made the sedimentary environment change from shore bank→carbonate platform→shorebank→river. In a word, stacking of different hierarchy of sea level changes resulted in cyclic sequences of composite sealevel change in the Upper Cretaceous-Eogene of the southwest border, Tarim Basin.
  • [1] .Fischer A G. The Lofer cyclothems of the Alpine Triassic, In: Merriam D F, ed. Symposium of cyclic sedimentation. State Ge-ological Survey of Kansas, Bulletin, 1964, 169: 107～150
    [2] .Goldhammer R K, Hardie L A, Dunn P A, et al. Depositional cycles, composite sea-level changes, cycle stacking patterns, and the hierarchy of stratigraphic forcing: Examples from Alpine Triassic platform carbonates. Geo. Soc. Am. Bull., 1990, 102: 535～562
    [3] .Koers chner W F, Read J F. Field and modelling studies of Cam-brian carbonate cycles: Virginia Appalachians. J. Sed. Petrol., 1989, 59: 654～687
    [4] .梅冥相. 碳酸盐旋回与层序. 贵阳: 贵州科技出版社, 1995. 191～192
    [5] .雍天寿, 单金榜, 魏景明等. 古特提斯海北支塔里木古海湾岩相古地理. 北京: 科学出版社, 1989. 15
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  • Received:  1997-09-24
  • Revised:  1998-01-15
  • Published:  1998-12-10

Cyclic Sequences and Depositional Systems in the Upper Cretaceous-Eogene of Southwest Tarim Basin

  • 1. Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000;
  • 2. nstitute of Xinjiang Petroleum Administration Bureau Geolgical Survey, Urumqi 830011
  • Received Date: 1997-09-24
  • Rev Recd Date: 1998-01-15
  • Publish Date: 1998-12-10

Abstract: Seven types high frequency cyclic sequences which have been distinguished in the Upper Cretaceous-Eogene marine carbonate of the southwest Tarim Basin are mainly as follows: undertidal carbonate ramp, platform, platform margin earbonate cyclic sequences and tidal flat cyclic equences which are clas-tic rock mainly. In the region, different kinds of high frequency cyclic sequences represented sedimenta-ry sequences of platform, shore bank and alluvial depositional system which deposited in specific paleo-geographic setting. In the vertical sections, high frequency cyclic sequences stacked upward, in which changing of the kinds of cyclic sequence reflects the evolution of sedimentary enviroment and facies. As a result, in the study area, high frequency sea level change affected on the sedimentary facies changes from the lower unit to the upper unit of high frequency cyclic sequence, and controlled the deposit pro-cession of cyclic sequence. The long periodic sea level changes controlled the stacking patterns of high frequency cyclic sequences, and made the sedimentary environment change from shore bank→carbonate platform→shorebank→river. In a word, stacking of different hierarchy of sea level changes resulted in cyclic sequences of composite sealevel change in the Upper Cretaceous-Eogene of the southwest border, Tarim Basin.

Xue Lianhua, Chen Guojun, Wang Qi, Shi Ji'an, Xiao Lixin, Yang Jun, Zhao Kebin. Cyclic Sequences and Depositional Systems in the Upper Cretaceous-Eogene of Southwest Tarim Basin[J]. Acta Sedimentologica Sinica, 1998, 16(3): 66-71.
Citation: Xue Lianhua, Chen Guojun, Wang Qi, Shi Ji'an, Xiao Lixin, Yang Jun, Zhao Kebin. Cyclic Sequences and Depositional Systems in the Upper Cretaceous-Eogene of Southwest Tarim Basin[J]. Acta Sedimentologica Sinica, 1998, 16(3): 66-71.
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