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Article Navigation >  Acta Sedimentologica Sinica  > 1996  >  14(1): 103-109

Huang Sijing, Yang Junjie, Zhang Wenzheng, Huang Yueming, Liu Guixia, Xiao Linping. Effects of Gypsum (or Anhydrite) on Dissolution of Dolomite under Different Temperatures and Pressures of Epigenesis and Burial Diagenesis[J]. Acta Sedimentologica Sinica, 1996, 14(1): 103-109.
Citation: Huang Sijing, Yang Junjie, Zhang Wenzheng, Huang Yueming, Liu Guixia, Xiao Linping. Effects of Gypsum (or Anhydrite) on Dissolution of Dolomite under Different Temperatures and Pressures of Epigenesis and Burial Diagenesis[J]. Acta Sedimentologica Sinica, 1996, 14(1): 103-109.
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Effects of Gypsum (or Anhydrite) on Dissolution of Dolomite under Different Temperatures and Pressures of Epigenesis and Burial Diagenesis

  • 1 Chengdu Institute of Technology, Chengdu 610059;

  • 2 Changqing Oil Field, Qingyang, Gansu 745101

  • Received Date: 1994-08-02
  • Publish Date: 1996-03-10
  • Exeperiments of dissolution for dolomite with and without gypsum (or anhydrite) have been made under different temperatures and pressures (40-130℃, normal atmospheric pressure-30MPa) of epigenesis and burial diagenesis conditions.The results show that the effect of presence of gypsum(or anhydrite) on dissolution of dolomite is positive when temperature is below 75℃ and pressure below 20MPa, but it is negative when temperature is higher than 75℃ and pressure higher than 20MPa. Based on the results we can predict that under the conditions of epigenesis and relatively shallow burial diagenesis the dissolution and formation of secondary porosity of dolomite with gypsum (or anhydrite) should be more common than that of dolomite without gypsum (or anhydrite), but under the deeper burial conditions the dissolution and formation of secondary porosity of dolomite without gypsum (or anhydrite) should be more common than that of dolomite with gypsum (or anhydrite).
  • [1] 1.Muller. G.，Methods in sedimentary petrology. Wiley-interscience. U. S. A.，1971.

    2.黄思静.杨梭杰，张文正，黄月明，刘桂霞，去白云化作用机理的实验模拟探讨。成都地质学院学报，1993. 20(4):81-86。

    3.宋焕荣等.喀斯特发育过程中的化学溶解和物理破坏作用，喀斯特地貌与洞穴研究，北京:科学出版社，1990, 171-181。
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  • Received:  1994-08-02
  • Published:  1996-03-10

Effects of Gypsum (or Anhydrite) on Dissolution of Dolomite under Different Temperatures and Pressures of Epigenesis and Burial Diagenesis

  • 1 Chengdu Institute of Technology, Chengdu 610059;
  • 2 Changqing Oil Field, Qingyang, Gansu 745101
  • Received Date: 1994-08-02
  • Publish Date: 1996-03-10

Abstract: Exeperiments of dissolution for dolomite with and without gypsum (or anhydrite) have been made under different temperatures and pressures (40-130℃, normal atmospheric pressure-30MPa) of epigenesis and burial diagenesis conditions.The results show that the effect of presence of gypsum(or anhydrite) on dissolution of dolomite is positive when temperature is below 75℃ and pressure below 20MPa, but it is negative when temperature is higher than 75℃ and pressure higher than 20MPa. Based on the results we can predict that under the conditions of epigenesis and relatively shallow burial diagenesis the dissolution and formation of secondary porosity of dolomite with gypsum (or anhydrite) should be more common than that of dolomite without gypsum (or anhydrite), but under the deeper burial conditions the dissolution and formation of secondary porosity of dolomite without gypsum (or anhydrite) should be more common than that of dolomite with gypsum (or anhydrite).

Huang Sijing, Yang Junjie, Zhang Wenzheng, Huang Yueming, Liu Guixia, Xiao Linping. Effects of Gypsum (or Anhydrite) on Dissolution of Dolomite under Different Temperatures and Pressures of Epigenesis and Burial Diagenesis[J]. Acta Sedimentologica Sinica, 1996, 14(1): 103-109.
Citation: Huang Sijing, Yang Junjie, Zhang Wenzheng, Huang Yueming, Liu Guixia, Xiao Linping. Effects of Gypsum (or Anhydrite) on Dissolution of Dolomite under Different Temperatures and Pressures of Epigenesis and Burial Diagenesis[J]. Acta Sedimentologica Sinica, 1996, 14(1): 103-109.
shu

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