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Volume 38 Issue 2
Apr.  2019
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Article Navigation >  CARSOLOGICA SINICA  > 2019  >  38(2): 258-264
CHEN Rubing, LUO Mingming, LUO Zhaohui, CHEN Zhihua, ZHOU Hong. Response relationship between chemical composition and dissolution rate of carbonate rocks in the Three Gorges Area[J]. CARSOLOGICA SINICA, 2019, 38(2): 258-264. doi: 10.11932/karst20190210
Citation: CHEN Rubing, LUO Mingming, LUO Zhaohui, CHEN Zhihua, ZHOU Hong. Response relationship between chemical composition and dissolution rate of carbonate rocks in the Three Gorges Area[J]. CARSOLOGICA SINICA, 2019, 38(2): 258-264. doi: 10.11932/karst20190210
shu

Response relationship between chemical composition and dissolution rate of carbonate rocks in the Three Gorges Area

doi: 10.11932/karst20190210
  • 1.

    School of Environment Studies, China University of Geosciences, Wuhan, Hubei 430074, China/Wuhan Zhong Di Huan Ke Hydrological Engineering Environment Science and Technology Consulting Co.,Ltd, Wuhan, Hubei 430223, China

  • 2.

    School of Environment Studies, China University of Geosciences, Wuhan, Hubei 430074, China/Institute of Karst Geology,CAGS/Key Laboratory of Karst Dynamics, MNR and GZAR, Guilin, Guangxi 541004, China

  • 3.

    School of Environment Studies, China University of Geosciences, Wuhan, Hubei 430074, China

  • 4.

    Institute of Geological Survey, China University of Geosciences, Wuhan, Hubei 430074, China

  • Publish Date: 2019-04-25
    Abstract
  • In this paper, the chemical dissolution rate of carbonate rocks, aging from the Sinan to Triassic sampled from the Xiangxi river basin, Three Gorges Area, was determined by indoor static water dissolution experiments. The response relationship between the chemical dissolution rate of carbonate rocks and the chemical composition of rocks was discussed, which provides a scientific basis for the quantitative studies of regional karst and aquosity evaluation of karst aquifers. The results show that the dissolution rates of relatively pure carbonate rocks are controlled by the promotion of CaO, SrO and the inhibitory effect of MgO, but these three factors have little influence on the dissolution rate of pure limestone. The acid insoluble substance in carbonate rocks presents an inhibiting tendency on chemical dissolution process. As a result, the dissolution rate of carbonate rocks is influenced by the multi-chemical composition, which comprehensively determines the solubility of carbonate rocks.

     

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