The evolution of a gravity-driven system accompanied by diapirism under the control of the prograding West Luconia Deltas in the Kangxi Depression, Southern South China Sea

Xu, Jinyao; Ren, Jianye; Luo, Pan

doi:10.1007/s11001-019-09384-8

Cited by 7 publications

(4 citation statements)

References 55 publications

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“…The shale diapirs are seen to be originated from the Oligocene-Lower Miocene deposits in Cycle I and II and intruded into the younger sediments in through rifting faults that are common in the northern part of Central Luconia. The mobile shales seen in our data is thought to be similar with shale diapirism induced by gravity-driven system in West Luconia Deltas (Xu et al, 2019) and Bunguran Trough (Jong and Barker, 2014;Jong et al, 2017). Similarly, the over pressure shale is commonly seen as mud volcanoes and mud pools in the onshore of Miri-Tinjar Provinces, including on the surface of Engkabang-Karap anticline (Karap Mud Volcano) (Kessler and Jong., 2016;Kessler and Jong, 2017).…”

Section: Shale Diapir and Gas Cloudsupporting

confidence: 72%

The Succession of Upper Eocene- Upper Miocene Limestone Growth and Corresponding Tectonic Events in Luconia Shelf, Sarawak, Malaysia

et al. 2021

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Using high quality regional seismic lines, we evidence major structures resulting from successive phases of tectonic events that affected the Luconia shelf from the Upper Cretaceous to Pliocene. Each tectonic event (Classified as Event 1–Event 3) is associated with different episodes of limestone growth in Luconia Province. The successive limestone growths are used as markers in constraining the timing and style of tectonic deformation. The poly-stage closure of the Proto South China Sea (PSCS) from the Upper Cretaceous to Lower Miocene led to the formation of compressional structures in its southern portion (South PSCS) providing elevated topography for the growth of the oldest limestone found in this area during the Upper Eocene to Lower Oligocene (Event 1). Based on contrasting seismic reflectors, morphology, and depositional patterns, the offshore Upper Eocene-Lower Oligocene limestone growth is correlated to the onshore Engkabang-Karap limestone. The southern part of Luconia was subjected to a continuous compression until the Lower Miocene at a time where the northern side of the Luconia Province was experiencing subsidence due to the rifting of the South China Sea (Event 2). The compression in the south generated elevated anticlines, triggering the growth of the Upper Oligocene to Lower Miocene limestone. By the end of the rifting event in the Lower Miocene, tectonic quiescence had enabled widespread carbonate growth in Luconia from the Middle to Upper Miocene. Regional compression due to the major uplift of Borneo hinterland (Event 3) triggered paramount clastic influx (gravity tectonics) to the offshore perturbating the limestone reef growth in Luconia. The impact of these interrelated shortening and stretching phases led to major crustal thickness variations and a prominent tilt of the Luconia platform that may highlight intricate feedbacks at the transition from compression to extension. While the southern side of the Luconia’s crustal fragment was anchored into Borneo hinterland, crustal extension in the northern region of Luconia led to a hyper-stretched crust characterized by low angle detachment faults and highly rotated blocks rising the mantle to its shallowest.

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Section: Shale Diapir and Gas Cloudsupporting

confidence: 72%

The Succession of Upper Eocene- Upper Miocene Limestone Growth and Corresponding Tectonic Events in Luconia Shelf, Sarawak, Malaysia

et al. 2021

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“…Compared to the well‐investigated northern South China Sea margin, our current understanding of tectonic subunits in the Nansha Microblock remains controversial (Schlüter, Hinz, & Block, ; P. Yan & Liu, ). The continental nature of attenuated crust shows a continuity from the southern South China Sea margin to the southernmost Dangerous Grounds beneath onshore Borneo (Vijayan, Foss, & Stagg, ; J. Xu, Ren, & Luo, ), and the southwestern boundary of the Nansha Microblock could be either the West Baram Line or the Lupar Line (Clift et al, ; Cullen, ). A Palaeozoic to Mesozoic basement of the region has been inferred based on dredge samples and limited boreholes, with the oldest rocks including Late Triassic to Early Jurassic marine sediments, Late Jurassic igneous intrusions and amphibolites, and Early Cretaceous high‐grade metamorphic rocks, igneous intrusions, and sedimentary rocks (Hinz & Schlüter, ; Kudrass, Wiedicke, Cepek, Kreuzer, & Müller, ; Schlüter et al, ; Y. Wang et al, ; Q. Yan, Shi, Liu, Wang, & Bu, ).…”

Section: Geological Overviewmentioning

confidence: 99%

“…Yan & Liu, 2004). The continental nature of attenuated crust shows a continuity from the southern South China Sea margin to the southernmost Dangerous Grounds beneath onshore Borneo (Vijayan, Foss, & Stagg, 2013;J. Xu, Ren, & Luo, 2019), and the southwestern boundary of the Nansha Microblock could be either the West Baram Line or the Lupar Line (Clift et al, 2008;Cullen, 2014).…”

Section: Southern South China Sea Marginmentioning

confidence: 99%

Cretaceous–Palaeogene sedimentary evolution of the South China Sea region: A preliminary synthesis

et al. 2019

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Rocks in extensional settings are generally sensitive to destruction and erosion, resulting in poor preservation potential and accumulation of their eroded components. The South China margin was dominated by a prolonged extensional setting from Late Mesozoic to Early Cenozoic, and this geological history is exactly archived in sediments within and surrounding the present South China Sea. However, the sedimentary evolution of the region, especially prior to the continental breakup and oceanic spreading, remains an issue of uncertainty and controversy, mostly due to limited borehole penetration and poor seismic reflection data for deeply buried sequences, as well as the lack of reliable regional stratigraphic framework. Here, we illustrate the Cretaceous–Palaeogene sedimentary evolution of the South China Sea region by synthesizing relevant data from previous literature and our own observations and displaying the evolution of lithofacies in sequential palinspastic reconstructions. The preferred palaeogeographic scenarios incorporate the latest interpretations of the conjugate relationship between continental margins as well as the birth and demise of the hypothetical Proto‐South China Sea. The patterns of lithofacies and depositional environments at regional scales, along with available provenance data, clearly reveal sedimentary responses to the significant Mesozoic–Cenozoic transition of plate geodynamics and magmatism along the Asian margin and provide implications for the potential mechanism of Cenozoic extension represented by distinct yet continuous processes of continental rifting and oceanic spreading.

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“…Secondly, large-scale significant progradational clinoforms prevail in the northern, western and southern margins of the SCS, especially since the Late Miocene. Xu et al (2019) presents a case study on a progradational clinoform of the West Luconia Deltas in the Zengmu Basin. The paper discusses the evolution of gravity instabilities and their relationship with the progradation of deltas and diapirisms in the gravity-driven system.…”

mentioning

confidence: 99%

Preface to the special issue “Tectonics and depositional infilling of western Pacific marginal sea”

2019

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The evolution of a gravity-driven system accompanied by diapirism under the control of the prograding West Luconia Deltas in the Kangxi Depression, Southern South China Sea

Cited by 7 publications

References 55 publications

The Succession of Upper Eocene- Upper Miocene Limestone Growth and Corresponding Tectonic Events in Luconia Shelf, Sarawak, Malaysia

The Succession of Upper Eocene- Upper Miocene Limestone Growth and Corresponding Tectonic Events in Luconia Shelf, Sarawak, Malaysia

Cretaceous–Palaeogene sedimentary evolution of the South China Sea region: A preliminary synthesis

Preface to the special issue “Tectonics and depositional infilling of western Pacific marginal sea”

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