“…Mud volcanoes occur both on the hanging wall and around the surface trace of the Chihshang Fault (Sung et al, 2010;Jiang et al, 2011) (Fig. 4a, b), and lie in the near-field of the Chengkung earthquake, the epicentral distance of mud volcanoes being invariably less than one fault length.…”
Section: When Faults Controlling Mud Volcano Systems Rupturementioning
“…Mud volcanoes occur both on the hanging wall and around the surface trace of the Chihshang Fault (Sung et al, 2010;Jiang et al, 2011) (Fig. 4a, b), and lie in the near-field of the Chengkung earthquake, the epicentral distance of mud volcanoes being invariably less than one fault length.…”
Section: When Faults Controlling Mud Volcano Systems Rupturementioning
“…And the genesis and evolution history of the Southwest Taiwan Basin are largely controlled by a subduction-related reverse fault system. The distribution of mud volcanoes in the Southwest Taiwan Basin and the southwest part of Taiwan Island is obviously related to the distribution of the strike-slip fault or anticline [77]. Consequently, mud diapirs distributed in the Yinggehai Basin may be related to strike-slip tectonism, 11 Geofluids mud diapirs in the Qiongdongnan and Pearl River Mouth Basins may be linked to an extensional geotectonic regime and in Southwest Taiwan Basin, and mud volcanoes and diapirs may be linked to a strike-slip and compressional setting.…”
Section: Controls On Variations In the Type And Mode Of Piercement Structures The Genesis Of Mud Volcanoes And Diapirs In The Northern Comentioning
Mud volcanoes and diapirs are geological structures formed due to arch piercing or diapiric intrusion of ductile sedimentary materials into the overlying strata along high permeability channels. A detailed study on the processes controlling the formation of mud volcanoes and diapirs in the northern continental margin of the South China Sea is of vital importance to the exploration of economically viable oil and gas reservoirs and can be helpful to the exploration of natural gas hydrate in a sedimentary basin. The fluid seepage structures that occur in the Mesozoic and Cenozoic sedimentary basins of the northern South China Sea show significant differences in their morphological and tectono-structural characteristics. We used high-resolution seismic profiles and instantaneous frequency profiles to understand the mechanisms that are critical with respect to the differential development of the investigated piercement structures. Differences in stress field do not directly lead to the difference in the scale of mud volcanoes or diapirs. Fractures may play an important role in the formation of mud volcanoes and diapirs. The thickness of the sediment was found to have a strong impact on the formation of fluid leakage structures that thicker sediments are more conducive to the development of mud diapirs and the thinner one is more likely to form mud volcanoes.
“…In general, detailed shallow geophysical exploration of MVs has not been carried out (Accaino et al, 2007;Chang et al, 2010;Quo et al, 2010). The results from this study can be extended to other MVs located in similar geological contexts where the MV complex can be easily identified.…”
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