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Article Navigation >  Acta Sedimentologica Sinica  > 2018  >  36(1): 101-109

FU KunRong, HUANG LiLi, ZHU Yi, FENG XiangYiLan, ZHANG Qiao, GUAN XiaoLi, GAO Da. The Depositional Diversity between Platform Margin and Platform Interior on the Late Ordovician Carbonate Rimmed-platform of Tazhong Area: A case study of qualitative and quantitative integrated microfacies analysis[J]. Acta Sedimentologica Sinica, 2018, 36(1): 101-109. doi: 10.3969/j.issn.1000-0550.2018.012
Citation: FU KunRong, HUANG LiLi, ZHU Yi, FENG XiangYiLan, ZHANG Qiao, GUAN XiaoLi, GAO Da. The Depositional Diversity between Platform Margin and Platform Interior on the Late Ordovician Carbonate Rimmed-platform of Tazhong Area: A case study of qualitative and quantitative integrated microfacies analysis[J]. Acta Sedimentologica Sinica, 2018, 36(1): 101-109. doi: 10.3969/j.issn.1000-0550.2018.012
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The Depositional Diversity between Platform Margin and Platform Interior on the Late Ordovician Carbonate Rimmed-platform of Tazhong Area: A case study of qualitative and quantitative integrated microfacies analysis

doi: 10.3969/j.issn.1000-0550.2018.012
  • 1.

    School of Geosciences, Yangtze University, Wuhan 430100, China;

  • 2.

    School of Earth Science and Resources, China University of Geosciences(Beijing), Beijing 100083, China;

  • 3.

    PetroChina Hangzhou Research Institute of Geology, Hangzhou 310023, China;

  • 4.

    School of Energy Resources, China University of Geosciences(Beijing), Beijing 100083, China;

  • 5.

    Basin Analysis Center, Yangtze University, Wuhan 430100, China

Funds:  National Natural Science Foundation of China, No. 41502104, 41130422;Program of Innovation and Entrepreneurship for Undergraduates, No. 2015013;the Yangtze Youth Fund, No.2015cqn30
  • Received Date: 2016-11-10
  • Rev Recd Date: 2017-01-04
  • Publish Date: 2018-02-10
  • In order to reveal the deposition diversity between platform margin and platform interior on the Late Ordovician carbonate rimmed platform of Tazhong area, we made an integrated microfacies analysis from both qualitative and quantitative aspects by using core and thin section data of the Lianglitage Formation. The result show that nine types of microfacies (MF1~MF9) can be recognized, and each type of the grainstones which represents different type of carbonate sand shoals has distinct shape of grain-size accumulation curves. The platform margin is composed of several types of microfacies (MF1~MF4) indicating high-energy sand shoals that form reef-shoal complex together with platform margin reefs. The platform interior is composed of these types of microfacies (MF5~MF9) that representing medium-to low-energy lagoon and tidal flat deposits. Combining with the quantitative grain-size analysis results, these microfacies including bioclast intraclast grainstone (MF1), bioclast rudstone (MF2) and ooid grainstone (MF3) were deposited in foreshore environment, respectively indicating platform margin bioclast sand shoals, ooid sand shoals, and reef-front gravel shoals. The peloid grainstone (MF5) was deposited in the barrier platform interior that was dominated by moderate wave energy. The enchinoid packstone and floatstone (MF4) was deposited just at the back of platform reef forming bioclast sand shoal.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Publishing history
  • Received:  2016-11-10
  • Revised:  2017-01-04
  • Published:  2018-02-10

The Depositional Diversity between Platform Margin and Platform Interior on the Late Ordovician Carbonate Rimmed-platform of Tazhong Area: A case study of qualitative and quantitative integrated microfacies analysis

doi: 10.3969/j.issn.1000-0550.2018.012
  • 1. School of Geosciences, Yangtze University, Wuhan 430100, China;
  • 2. School of Earth Science and Resources, China University of Geosciences(Beijing), Beijing 100083, China;
  • 3. PetroChina Hangzhou Research Institute of Geology, Hangzhou 310023, China;
  • 4. School of Energy Resources, China University of Geosciences(Beijing), Beijing 100083, China;
  • 5. Basin Analysis Center, Yangtze University, Wuhan 430100, China
Funds:  National Natural Science Foundation of China, No. 41502104, 41130422;Program of Innovation and Entrepreneurship for Undergraduates, No. 2015013;the Yangtze Youth Fund, No.2015cqn30
  • Received Date: 2016-11-10
  • Rev Recd Date: 2017-01-04
  • Publish Date: 2018-02-10

Abstract: In order to reveal the deposition diversity between platform margin and platform interior on the Late Ordovician carbonate rimmed platform of Tazhong area, we made an integrated microfacies analysis from both qualitative and quantitative aspects by using core and thin section data of the Lianglitage Formation. The result show that nine types of microfacies (MF1~MF9) can be recognized, and each type of the grainstones which represents different type of carbonate sand shoals has distinct shape of grain-size accumulation curves. The platform margin is composed of several types of microfacies (MF1~MF4) indicating high-energy sand shoals that form reef-shoal complex together with platform margin reefs. The platform interior is composed of these types of microfacies (MF5~MF9) that representing medium-to low-energy lagoon and tidal flat deposits. Combining with the quantitative grain-size analysis results, these microfacies including bioclast intraclast grainstone (MF1), bioclast rudstone (MF2) and ooid grainstone (MF3) were deposited in foreshore environment, respectively indicating platform margin bioclast sand shoals, ooid sand shoals, and reef-front gravel shoals. The peloid grainstone (MF5) was deposited in the barrier platform interior that was dominated by moderate wave energy. The enchinoid packstone and floatstone (MF4) was deposited just at the back of platform reef forming bioclast sand shoal.

FU KunRong, HUANG LiLi, ZHU Yi, FENG XiangYiLan, ZHANG Qiao, GUAN XiaoLi, GAO Da. The Depositional Diversity between Platform Margin and Platform Interior on the Late Ordovician Carbonate Rimmed-platform of Tazhong Area: A case study of qualitative and quantitative integrated microfacies analysis[J]. Acta Sedimentologica Sinica, 2018, 36(1): 101-109. doi: 10.3969/j.issn.1000-0550.2018.012
Citation: FU KunRong, HUANG LiLi, ZHU Yi, FENG XiangYiLan, ZHANG Qiao, GUAN XiaoLi, GAO Da. The Depositional Diversity between Platform Margin and Platform Interior on the Late Ordovician Carbonate Rimmed-platform of Tazhong Area: A case study of qualitative and quantitative integrated microfacies analysis[J]. Acta Sedimentologica Sinica, 2018, 36(1): 101-109. doi: 10.3969/j.issn.1000-0550.2018.012
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