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Structural features and formation conditions of mud diapirs in the Andaman Sea Basin

  • WENGANG HE (a1) (a2) and JIANXUN ZHOU (a1)

Abstract

Data from offshore oil and gas explorations have revealed that mud diapirs occur widely not only at continental margins but also in foreland basins and may have played an important role in the entrapment of oil and gas. Although the structural features and formation mechanism of salt diapirs have been extensively investigated, mud diapirs are still not fully understood, largely due to the difficulty of identifying them from seismic data. In this paper, the structural features and main controlling factors of mud diapirs in the Andaman Sea Basin are investigated based on seismic profiles combined with drilling data and regional tectonic settings. The results show that there are five types of mud diapir in the Andaman Sea Basin: turtleback mud diapir, mud dome, piercing mud diapir, mud volcano and gas chimney-like mud diapir. Turtleback mud diapirs mainly occur in the southern segment of the accretionary wedge of the Andaman Sea Basin, which is far from the Bengal Fan and characterized by low deposition rate and strong compression tectonic setting. Piercing mud diapirs exist mainly in the central segment of the accretionary wedge, which is close to provenances of sediments and characterized by rapid sedimentation rates, large mudstone thickness and transpressional tectonic setting. Mud domes and mud volcanoes mainly occur in the northern segment of the accretionary wedge, which is characterized by rapid sedimentation rates, large mudstone thickness and sedimentary wedge growth tectonic setting. The gas chimney-like mud diapirs only occur in the northern segment of the back-arc depression close to the Sagaing strike-slip fault belt, which is characterized by high deposition rate, large mudstone thickness and high geothermal gradient. These features suggest that thick mudstone deposit, rapid sedimentation rates, large geothermal gradient, strong tectonic stress and gravitational spreading and sliding may have prompted the formation of mud diapirs in the Andaman Sea Basin.

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Corresponding author

Author for correspondence: hewengang123@aliyun.com

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Adam, J., Ge, Z. & Sanchez, M. 2012. Post-rift salt tectonic evolution and key control factors of the Jequitinhonha deepwater fold belt, central Brazil passive margin: insights from scaled physical experiments. Marine & Petroleum Geology 37, 70100.
Alam, M., Alam, M., Curray, J., Chowdhury, A. & Gani, M. 2003. An overview of the sedimentary geology of the Bengal Basin in relation to the regional tectonic framework and basin-fill history. Sediment Geology 155, 179208.
Albertz, M., Beaumont, C. & Ings, S. 2010. Geodynamic modeling of sedimentation-induced overpressure, gravitational spreading, and deformation of passive margin mobile shale basins. In Shale Tectonics (ed. Wood, L.), pp. 2962. American Association of Petroleum Geologists, Memoir no. 93.
Brown, K. 1990. The nature and hydrogeologic significance of mud diapirs and diatremes for accretionary systems. Journal of Geophysical Research 95, 8969–82.
Brun, J. & Fort, X. 2011. Salt tectonics at passive margins: geology versus models. Marine & Petroleum Geology 28, 1123–45.
Cai, W., Zhu, G., Jiang, Y., Yang, S. & Li, A. 2012. Petroleum geologic characteristics and exploration potential of accretionary wedge in Myanmar. Natural Gas Geoscience 23, 742–7.
Cartwright, J. 1994. Episodic basin-wide hydrofracturing of overpressured Early Cenozoic mudrock sequences in the North Sea Basin. Marine & Petroleum Geology 11, 587607.
Chen, S., Hsu, S., Wang, Y., Chung, S., Chen, P., Tsai, C., Liu, C., Lin, H. & Lee, Y. 2014. Distribution and characters of the mud diapirs and mud volcanoes off southwest Taiwan. Journal of Asian Earth Sciences 92, 201–14.
Curray, J. 2005. Tectonics and history of the Andaman Sea region. Journal of Asian Earth Sciences 25, 187232.
Fei, Q. & Wang, Y. 1982. A preliminary study on diapiric structure in oil and gas bearing basins in eastern China. Oil & Gas Geology 3, 113–23.
Gopala Rao, G., Bhattacharya, M., Ramana, V., Subrahmanyam, T., Ramprasad, T., Krishna, K., Chaubey, A., Murty, G., Srinivas, K. & Desa, M. 1994. Analysis of multi-channel seismic reflection and magnetic data along 13°N latitude across the Bay of Bengal. Marine Geophysical Research 16, 225–36.
Graue, K. 2000. Mud volcanoes in deep water Nigeria. Marine & Petroleum Geology 17, 959–74.
Hao, F., Li, S., Gong, Z. & Yang, J. 2001. Diapir mechanism and fluid episodic charging in the Yinggehai Basin. Science in China (Series D) 31, 471–6.
He, J., Xia, B., Zhang, S., Yan, P. & Liu, H. 2006. Origin and distribution of mud diapirs in the Yinggehai Basin and their relation to the migration and accumulation of natural gas. Geology in China 33, 1337–44.
He, J., Zhu, Y., Weng, R. & Cui, S. 2010. Characters of north-west mud diapirs volcanoes in South China Sea and relationship between them and accumulation and migration of oil and gas. Journal of China University of Geosciences 35, 7586.
He, W., Mei, L., Zhu, G., Yang, S., Hu, Z., Xiao, S. & Zou, Y. 2011. Study on tectonic and evolution characteristics of basins in Andaman Sea. Fault-Block & Gas Field 18, 178–82.
Hudec, M. & Jackson, M. 2007. Terra infirma: understanding salt tectonics. Earth-Science Reviews 82, 127.
Ismail–Zadeh, A., Talbot, C. & Volozh, Y. 2001. Dynamic restoration of profiles across diapiric salt structures: numerical approach and applications. Tectonophysics 337, 2338.
Jackson, M. & Talbot, C. 1986. External shapes, strain rates, and dynamics of salt structures. Geological Society of America Bulletin 97, 305–23.
Jackson, M. & Talbot, C. 1991. A Glossary of Salt Tectonics. University of Texas at Austin, Bureau of Economic Geology Geological Circular, vol. 91, 44 pp.
Khan, P. & Chakraborty, P. 2005. Two–phase opening of Andaman Sea: a new seismotectonic insight. Earth & Planetary Science Letters 229, 259–71.
Kopf, A. 2002. Significance of mud volcanism. Reviews of Geophysics 40, 2.12.52.
Milkov, A. 2000. Worldwide distribution of submarine mud volcanoes and associated gas hydrates. Marine Geology 167, 2942.
Morley, C. 2012. Late Cretaceous – Early Paleogene tectonic development of SE Asia. Earth Science Reviews 115, 3775.
Morley, C. 2013. Discussion of tectonic models for Cenozoic strike-slip fault-affected continental margins of mainland SE Asia. Journal of Asian Earth Sciences 76, 137–51.
Morley, C. & Alvey, A. 2015. Is spreading prolonged, episodic or incipient in the Andaman Sea? Evidence from deepwater sedimentation. Journal of Asian Earth Sciences 98, 446–56.
Morley, C. & Guerin, G. 1996, Comparison of gravity driven deformation styles and behaviour associated with mobile shales and salt. Tectonics 15, 1154–70.
Nielsen, C., Chamot-Rooke, N. & Rangin, C. 2004. From partial to full strain partitioning along the Indo-Burmese hyper–oblique subduction. Marine Geology 209, 303–27.
Nikolinakou, M., Hudec, M. & Flemings, P. 2014. Comparison of evolutionary and static modeling of stresses around a salt diaper. Marine & Petroleum Geology 57, 537–45.
Qi, J., Xia, Y. & Yang, Q. 2005. Analysis of the Oil and Gas Bearing Structure. Dongying: Petroleum Industry Press, 161 pp.
Raju, K., Ramprasad, T., Rao, P., Ramalingeswara Rao, B. & Varghese, J. 2004. New insights into the tectonic evolution of the Andaman basin, northeast Indian Ocean. Earth & Planetary Science Letters 221, 145–62.
Raju, K., Ray, D., Mudholkar, A., Murty, G., Gahalaut, V., Samudrala, K., Paropkari, A., Ramachandran, R. & Surya Prakash, L. 2012. Tectonic and volcanic implications of a cratered seamount off Nicobar Island, Andaman Sea. Journal of Asian Earth Sciences 56, 4253.
Rangin, C., Maurin, T. & Masson, F. 2013. Combined effects of Eurasia/Sunda oblique convergence and East-Tibetan crustal flow on the active tectonics of Burma. Journal of Asian Earth Sciences 76, 185–94.
Robinson, R., Bird, M., Oo, N., Hoey, T., Aye, M., Higgitt, D., Lu, X., Swe, A., Tun, T. & Win, S. 2007. The Irrawaddy river sediment flux to the Indian Ocean: the original nineteenth–century data revisited. Journal of Geology 115, 629–40.
Rowan, M., Peel, F., Vendeville, B. & Gaullier, V. 2012. Salt tectonics at passive margins: geology versus models e discussion. Marine & Petroleum Geology 37, 184–94.
Samuel, H. 2012. A re-evaluation of metal diapir breakup and equilibration in terrestrial magma oceans. Earth & Planetary Science Letters 313, 105–14.
Sautter, B., Pubellier, M., Jousselin, P., Dattilo, P., Kerdraon, Y., Choong, C. & Menier, D. 2017. Late Paleogene rifting along the Malay Peninsula thickened crust. Tectonophysics 711, 205–24.
Smit, J., Brun, J. & Sokoutis, D. 2003. Deformation of brittle-ductile thrust wedges in experiments and nature. Journal of Geophysical Research 108, 2480. doi: 10.1029.2002JB002190.
Talukder, A., Bialas, J., Klaeschen, D., Buerk, D., Brueckmann, W., Reston, T. & Breitzke, M. 2007. High-resolution, deep tow, multichannel seismic and side scan sonar survey of the submarine mounds and associated BSR off Nicaragua pacific margin. Marine Geology 241, 3343.
Tang, L., Jia, C., Jin, Z., Pi, X., Chen, S. & Xie, H. 2003. Tertiary salt pillow structures in the central section of the Kuqa foreland fold-and-thrust belt, Traim Basin, Northwest China. Chinese Journal of Geology 38, 413–24.
Uddin, A. & Lundberg, N. 2004. Miocene sedimentation and subsidence during continent–continent collision, Bengal Basin, Bangladesh. Sedimentary Geology 164, 131–46.
Van Rensbergen, P., Hillis, R., Maltman, A. & Morley, C. 2003. Subsurface sediment mobilization. In Subsurface Sediment Mobilization (eds Rensbergen, P. van, Hillis, R., Maltman, A. & Morley, C.), pp. 13. Geological Society of London, Special Publication no. 216.
Van Rensbergen, P., Morley, C., Ang, D., Hoan, T. & Lan, N. 1999. Structural evolution of shale diapirs from reactive rise to mud volcanism: 3D seismic data from the Baram delta, offshore Brunei Darussalam. Journal of the Geological Society, London 156, 633–50.
Vendeville, B. & Jackson, M. 1992. Numerical models of salt diapir formation by down-building: the role of sedimentation rate, viscosity contrast, initial amplitude and wavelength. Marine & Petroleum Geology 186, 390400.
Wacheul, J., Bars, M., Monteux, J. & Aurnou, J. 2014. Laboratory experiments on the breakup of liquid metal diapirs. Earth & Planetary Science Letters 403, 236–45.
Wang, C. Y. & Xie, X. 1998. Hydrofracturing and episodic fluid flow in shale-rich basins: a numerical study. American Association of Petroleum Geologists Bulletin 82, 1857–69.
Wang, J., Pang, X., Wang, C., He, M. & Lian, S. 2006. Discovery and identification of the central basin of Baiyun Depression in the Pearl River Mouth Basin. Earth Science – Journal of China University of Geosciences 31, 209–13.
Warsitzka, M., Kley, J. & Kukowski, N. 2013. Salt diapirism driven by differential loading: some insights from analogue modeling. Tectonophysics 591, 8397.
Xie, X., Li, S., Dong, W., Zhang, M. & Yang, J. 1999. Trace marker of hot fluid flow and their geological implications: a case study of Yinggehai Basin. Earth Science – Journal of China University of Geosciences 24, 183–8.
Xu, S., Zheng, D., Zhu, G., Yang, S., Li, C. & Yang, C. 2012. Main controlling factors and models of gas accumulation in back arc depression of Andaman Sea, Burma. Journal of Earth Science & Environment 34, 2934.
Yu, J., Li, S., Wang, J., Wang, X. & Lu, S. 2005. Salt diapirs and faulting of the central uplift belt in the Dongying Sag, Bohai Bay Basin, North China. Chinese Journal of Geology 40, 5568.
Zhang, M. 2000. Migration-accumulation characteristics of natural gas in the diapir structure belt of Yinggehai Basin. Journal of the University of Petroleum, China 24, 3942.
Zhu, G. & Li, L. 2012. Exploration status and major controlling factors of hydrocarbon accumulation in the continental margin basin of the Bengal Bay. Geological Science & Technology Information 31, 112–18.
Zhu, G., Xie, X. & Qiu, C. 2010. Petroleum geology and exploration potential in back-arc strike slip and extension basins: a case of Martaban Bay Basin in Andaman Sea, Myanmar. China Offshore Oil & Gas 22, 225–31.

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