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Supply of terrigenous organic matter from tidal flat to the marine environment: An example of neritic source rocks in the Eocene Pinghu Formation, Xihu Depression, East China Sea Shelf Basin

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Abstract

The terrigenously-dominated marine shales which were deposited in the lower Eocene Pinghu Formation were thought to be a potential source rock in the Xihu Depression of the East China Sea Shelf Basin. However, the exceptionally high total organic carbon content (TOC, >6% on average) of the tidal sand ridge samples was not compatible with their sedimentary environment, indicating coal-bearing sedimentary debris may have been transferred from the coast to the ocean. In this study, new sights into the origins and supply of organic materials in the coastal environment were proposed in the neritic organic matter of the Eocene Pinghu Formation. A discriminant model was developed using plynofacies analysis data to pinpoint the source of organic materials in marine source rocks. The discrimination results suggested that marine mudstones were associated with tidal flat mudstones rather than deltaic ones. The biomarker characteristics of mudstones deposited in various environments support this assertion, indicating that the supply of plant materials in tidal flats is the primary organic matter source for the marine environment. The organic matter abundance was elevated in tidal flats due to their superior preservation conditions. Additionally, the lithological assemblage of tidal flats suggests that tidal currents can scour marshes and then transport dispersed terrigenous organic materials to neritic areas. These findings indicate that coal-bearing sedimentary debris was likely transferred from the coast to the ocean, and tidal currents are thought to be the dominant mechanism driving organic matter from the tidal to the marine environment.

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References

  • Abbassi S, George S C, Edwards D S, et al. 2014. Generation characteristics of Mesozoic syn- and post-rift source rocks, Bonaparte Basin, Australia: New insights from compositional kinetic modelling. Marine and Petroleum Geology, 50: 148–165, doi: https://doi.org/10.1016/j.marpetgeo.2013.10.010

    Article  Google Scholar 

  • Baudin F, Stetten E, Schnyder J, et al. 2017. Origin and distribution of the organic matter in the distal lobe of the Congo deep-sea fan- A Rock-Eval survey. Deep-Sea Research, Part II: Topical Studies in Oceanography, 2017, 142: 75–90

    Article  Google Scholar 

  • Bojesen-Koefoed J A, Christiansen F G, Petersen H I, et al. 1996. Resinite-rich coals of northeast Greenland—A hitherto unrecognized, highly oil-prone Jurassic source rock. Bulletin of Canadian Petroleum Geology, 44(3): 458–473

    Google Scholar 

  • Cai Hua, Qin Lanzhi, Liu Yinghui. 2019. Differentiation and coupling model of source-to-sink systems with transitional facies in Pingbei Slope of Xihu Sag. Earth Science (in Chinese), 44(3): 880–897

    Google Scholar 

  • Cai Jingong, Zhu Xiaojun, Zhang Jingqiao, et al. 2020. Heterogeneities of organic matter and its occurrence forms in mudrocks: Evidence from comparisons of palynofacies. Marine and Petroleum Geology, 111: 21–32, doi: https://doi.org/10.1016/j.marpetgeo.2019.08.004

    Article  Google Scholar 

  • Carvalho M D A, Filho J G M, Menezes T R. 2006. Paleoenvironmental reconstruction based on palynofacies analysis of the Aptian-Albian succession of the Sergipe Basin, Northeastern Brazil. Marine Micropaleontology, 59(1): 56–81, doi: https://doi.org/10.1016/j.marmicro.2006.01.001

    Article  Google Scholar 

  • Chen Linlin. 1998. Depositional environment evolution of Pinghu Formation in Xihu Depression, the East China Sea. Marine Geology & Quaternary Geology (in Chinese), 18(4): 69–78

    Google Scholar 

  • Cheng Xiong, Hou Dujie, Zhao Zhe, et al. 2020. Higher landplant-derived biomarkers in light oils and condensates from the coal-bearing Eocene Pinghu Formation, Xihu Sag, East China Sea Shelf Basin. Journal of Petroleum Geology, 43(4): 437–451, doi: https://doi.org/10.1111/jpg.12774

    Article  Google Scholar 

  • Dai Na, Zhong Ningning, Deng Yunhua, et al. 2015. Genetic types of marine source rock in Meso-Cenozoic continental margin basins. Acta Petrolei Sinica (in Chinese), 36(8): 940–953

    Google Scholar 

  • Damsté J S S, Kenig F, Koopmans M P, et al. 1995. Evidence for gammacerane as an indicator of water column stratification. Geochimica et Cosmochimica Acta, 59(9): 1895–1900, doi: https://doi.org/10.1016/0016-7037(95)00073-9

    Article  Google Scholar 

  • Deng Yunhua, Lan Lei, Li Youchuan, et al. 2019. On the control effect of deltas on the distribution of marine oil and gas fields in the South China Sea. Acta Petrolei Sinica (in Chinese), 40(S2): 1–12

    Google Scholar 

  • Deniau I, Disnar J R, Baudin F, et al. 2010. Characterization of organic matter in the Oligocene (Chattian) turbiditic fine grained deposits, offshore Angola. Organic Geochemistry, 41(2): 135–145, doi: https://doi.org/10.1016/j.orggeochem.2009.11.004

    Article  Google Scholar 

  • Diao Hui, Liu Jinshui, Hou Dujie, et al. 2019. Coal-bearing source rocks formed in the transitional stage from faulting to depression nearshore China—A case from the Pinghu Formation in the Xihu Sag. Marine Geology & Quaternary Geology (in Chinese), 39(6): 102–114

    Google Scholar 

  • Didyk B M, Simoneit B R T, Brassell S C, et al. 1978. Organic geochemical indicators of palaeoenvironmental conditions of sedimentation. Nature, 272(5650): 216–222, doi: https://doi.org/10.1038/272216a0

    Article  Google Scholar 

  • Ding Wenjing, Hou Dujie, Gan Jun, et al. 2021. Palaeovegetation variation in response to the late Oligocene-early Miocene East Asian summer monsoon in the Ying-Qiong Basin, South China Sea. Palaeogeography, Palaeoclimatology, Palaeoecology, 567: 110205

    Article  Google Scholar 

  • Doust H, Noble R A. 2008. Petroleum systems of Indonesia. Marine and Petroleum Geology, 25(2): 103–129, doi: https://doi.org/10.1016/j.marpetgeo.2007.05.007

    Article  Google Scholar 

  • Fu Ning, Li Youchuan, Chen Guihua, et al. 2003. Pooling mechanisms of “evaporating fractionation” of oil and gas in the Xihu depression, East China Sea. Petroleum Exploration and Development (in Chinese), 30(2): 39–42

    Google Scholar 

  • Garcia Y C, Martinez J I, Velez M I, et al. 2011. Palynofacies analysis of the late Holocene San Nicolás terrace of the Cauca paleolake and paleohydrology of northern South America. Palaeogeography, Palaeoclimatology, Palaeoecology, 299(1/2): 298–308

    Article  Google Scholar 

  • Haven H L T, Rohmer M, Rullkötter J, et al. 1989. Tetrahymanol, the most likely precursor of gammacerane, occurs ubiquitously in marine sediments. Geochimica et Cosmochimica Acta, 53(11): 3073–3079, doi: https://doi.org/10.1016/0016-7037(89)90186-5

    Article  Google Scholar 

  • He Yuping. 2020. Discovery and geological significance of Eocene Pinghu Formation Tempestites in Tiantai area, Xihu Sag, East China Sea Basin. Journal of Jilin University (Earth Science Edition) (in Chinese), 50(2): 500–508

    Google Scholar 

  • Jiang Haijun, Hu Mingyi, Hu Zhonggui, et al. 2011. Sedimentary environment of Paleogene in Xihu Sag: Microfossil as the main foundation. Lithologic Reservoirs (in Chinese), 23(1): 74–78

    Google Scholar 

  • Jones E B G. 1988. Do fungi occur in the sea?. Mycologist, 2(4): 150–157

    Article  Google Scholar 

  • Kotsiantis S B. 2007. Supervised Machine Learning: A Review of Classification Techniques. Informatica, 31: 249–268

    Google Scholar 

  • Li Zengxue, Lv Dawei, Wang Dongdong, et al. 2015. The multiple coal-forming theoretical system and its model. Haiyang Xuebao (in Chinese), 36(3): 271–282

    Google Scholar 

  • Noble R A, Alexander R, Kagi R I, et al. 1985. Tetracyclic diterpenoid hydrocarbons in some Australian coals, sediments and crude oils. Geochimica et Cosmochimica Acta, 49(10): 2141–2147, doi: https://doi.org/10.1016/0016-7037(85)90072-9

    Article  Google Scholar 

  • Otto A, Simoneit B R T, Rember W C. 2005. Conifer and angiosperm biomarkers in clay sediments and fossil plants from the Miocene Clarkia Formation, Idaho, USA. Organic Geochemistry, 36(6): 907–922, doi: https://doi.org/10.1016/j.orggeochem.2004.12.004

    Article  Google Scholar 

  • Peters K E, Walters C C, Moldowan J M. 2005. The Biomarker Guide: Volume 2, Biomarkers and Isotopes in Petroleum Exploration and Earth History. 2nd ed. Cambridge: Cambridge University Press

    Google Scholar 

  • Saller A, Lin R, Dunham J. 2006. Leaves in turbidite sands: The main source of oil and gas in the deep-water Kutei Basin, Indonesia. AAPG Bulletin 90(10): 1585–1608

    Article  Google Scholar 

  • Su Ao, Chen Honghan, Hu Fei, et al. 2015. Conditions, characteristics and enrichment regulation of oil and gas accumulation of the south central of central anticlinal zone in the Xihu Sag, East China Sea Basin. Geological Science and Technology Information (in Chinese), 34(2): 123–129

    Google Scholar 

  • Tyson R V. 1995. Sedimentary Organic Matter. London: Chapman & Hall

    Book  Google Scholar 

  • Volkman J K. 1986. A review of sterol markers for marine and terrigenous organic matter. Organic Geochemistry, 9(2): 83–99, doi: https://doi.org/10.1016/0146-6380(86)90089-6

    Article  Google Scholar 

  • Wang Xuemin. 2017. Applied Multivariate Statistical Analysis (in Chinese). 5th ed. Shanghai: Shanghai University of Finance and Economics Press, 114–145

    Google Scholar 

  • Wang Qian, Li Sanzhong, Guo Lingli, et al. 2017. Analogue modelling and mechanism of tectonic inversion of the Xihu Sag, East China Sea Shelf Basin. Journal of Asian Earth Sciences, 139: 129–141, doi: https://doi.org/10.1016/j.jseaes.2017.01.026

    Article  Google Scholar 

  • Wang Yang, Qin Yong, Yang Liu, et al. 2020. Organic geochemical and petrographic characteristics of the coal measure source rocks of Pinghu Formation in the Xihu Sag of the East China Sea Shelf Basin: Implications for coal measure gas potential. Acta Geologica Sinica (English Edition), 94(2): 150–161

    Article  Google Scholar 

  • Xie Guoliang, Shen Yulin, Zhao Zhigang, et al. 2013. Distribution characteristic and geological significance of rare earth and trace elements of mudstone of Pingbei area in Xihu Depression. Geochimica (in Chinese), 42(6): 599–610

    Google Scholar 

  • Yu Shui. 2020. Depositional genesis analysis of source rock in Pinghu Formation of western slope, Xihu Depression. Earth Science (in Chinese), 45(5): 1722–1736

    Google Scholar 

  • Zhang Liuping. 1991. A study of the method for oil source correlation with trace elements in petroleum. Petroleum Exploration and Development (in Chinese), (S1): 96–106

  • Zhang Liuping, Bai Guoping, Zhao Yingquan. 2014. Data-processing and recognition of seepage and microseepage anomalies of acid-extractable hydrocarbons in the south slope of the Dongying Depression, eastern China. Marine and Petroleum Geology, 57: 385–402, doi: https://doi.org/10.1016/j.marpetgeo.2014.06.009

    Article  Google Scholar 

  • Zhang Liuping, Bai Guoping, Zhao Xianzheng, et al. 2019. Oil-source correlation in the slope of the Qikou Depression in the Bohai Bay Basin with discriminant analysis. Marine and Petroleum Geology, 109: 641–657, doi: https://doi.org/10.1016/j.marpetgeo.2019.06.055

    Article  Google Scholar 

  • Zhang Gongcheng, Deng Yunhua, Wu Jingfu, et al. 2013. Coal measure source-rock characteristics and gas exploration directions in Cenozoic superimposed faulted depressions, offshore China. China Offshore Oil and Gas (in Chinese), 25(6): 15–25

    Google Scholar 

  • Zhang Gongcheng, Li Zengxue, Lan Lei, et al. 2021. Natural gas in large gas fields in the South China Sea is mainly coal-type gas. Natural Gas Industry (in Chinese), 41(11): 12–23

    Google Scholar 

  • Zhang Gongcheng, Li Zengxue, Wang Dongdong, et al. 2020. Characteristics of coal geology in South China Sea. Journal of China Coal Society (in Chinese), 45(11): 3864–3878

    Google Scholar 

  • Zhang Liuping, Liao Zebin. 1998. A primary study of the method for anomaly recognition in geochemical hydrocarbon exploration. Journal of China University of Geosciences, 9(1): 72–80

    Google Scholar 

  • Zhang Gongcheng, Qu Hongjun, Liu Shixiang, et al. 2015. Tectonic cycle of marginal sea controlled the hydrocarbon accumulation in deep-water areas of South China Sea. Acta Petrolei Sinica, 36(5): 533–545

    Google Scholar 

  • Zhou Shanshan, Bai Guoping, Zhang Liuping, et al. 2021. Identifying oil sources in the Wen’an Slope of the Baxian Depression, the Bohai Bay Basin, North China. Marine and Petroleum Geology, 128: 104938, doi: https://doi.org/10.1016/j.marpetgeo.2021.104938

    Article  Google Scholar 

  • Zhu Xinjina, Chen Jianfa, Li Wei, et al. 2020. Hydrocarbon generation potential of Paleogene coals and organic rich mudstones in Xihu sag, East China Sea Shelf basin, offshore eastern China. Journal of Petroleum Science and Engineering, 184: 106450, doi: https://doi.org/10.1016/j.petrol.2019.106450

    Article  Google Scholar 

  • Zhu Yangming, Li Ying, Zhou Jie, et al. 2012. Geochemical characteristics of Tertiary coal-bearing source rocks in Xihu Depression, East China Sea Basin. Marine and Petroleum Geology, 35(1): 154–165, doi: https://doi.org/10.1016/j.marpetgeo.2012.01.005

    Article  Google Scholar 

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Authors and Affiliations

  1. China National Offshore Oil Corporation (CNOOC) Research Institute Co., Ltd., Beijing, 100028, China

    Shanshan Zhou, Youchuan Li, Jianping Li, Wenjing Ding & Xin Li

  2. School of Chemical Engineering and Environment, China University of Petroleum (Beijing), Beijing, 102200, China

    Weilai Zhang

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  1. Shanshan Zhou
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  2. Youchuan Li
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  3. Jianping Li
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  4. Wenjing Ding
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  5. Xin Li
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Correspondence to Xin Li.

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Foundation item: China Postdoctoral Science Foundation under contract No. 2021M703619.

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Zhou, S., Li, Y., Li, J. et al. Supply of terrigenous organic matter from tidal flat to the marine environment: An example of neritic source rocks in the Eocene Pinghu Formation, Xihu Depression, East China Sea Shelf Basin. Acta Oceanol. Sin. 42, 138–150 (2023). https://doi.org/10.1007/s13131-022-2141-y

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  • DOI: https://doi.org/10.1007/s13131-022-2141-y

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