The structure and formation of diapirs in the Yinggehai–Song Hong Basin, South China Sea

Provenance of Upper Miocene to Quaternary sediments in the Yinggehai-Song Hong Basin, South China Sea: Evidence from detrital zircon U–Pb ages

“…Linking the sequence stratigraphic, seismic profile Xie, 2009;Lei et al, 2011) and detrital zircon age spectrum of samples from the Dongfang gas field in Y-SH Basin and surrounding source areas, suggests the clastic material from three dominant age sources: (1) southern Yangtze Craton, (2) Hainan Island and (3) Indochina Block. These sources provide sediment from the northwest, west and east.…”

“…The Y-SH Basin is characterized by its large volumes, subsidence rate, overpressures (Zhang et al, 1996;Luo et al, 2003;Huang et al, 2009a), and widely developed diapirs in the central Yinggehai Depression which have been recognized by its great significance in gas exploration and production Wang and Huang, 2008;Huang et al, 2009a;Lei et al, 2011) (Fig. 1C).…”

“…Valuable information about sedimentary direction during deposition is gained by reconstructing transport pathways, which provide useful knowledge when trying to locate hydrocarbon exploration targets (Olivarius et al, 2014). Most published works on the provenance of the Y-SH Basin have focused on the heavy minerals, sequence stratigraphic analysis, geochemistry and seismic profiles Wu, 1997;Huang et al, 2003;Yan et al, 2007;Xie et al, 2008;Xie, 2009;Xie and Fan, 2010;Lei et al, 2011;Wei et al, 2012). analyzed the sedimentary facies of the Y-SH Basin and suggested that Offshore Indochina and Hainan were important source areas since Marine Geology 355 (2014) 202-217 Late Miocene.…”

Late Miocene provenance change on the eastern margin of the Yinggehai-Song Hong Basin, South China Sea: Evidence from U–Pb dating and Hf isotope analyses of detrital zircons

“…The basin is characterized by its large volumes, subsidence rates, overpressures, and diapirs which widely developed in the central Yinggehai Depression (Zhang et al, 1996;Luo et al, 2003;). These diapirs, in an en echelon arrangement, and varying in shape and size, have been recognized by their great significance in hydrocarbon exploration (Xie et al, 2001;Wang and Huang, 2008;Lei et al, 2011) (Fig. 1B).…”

“…Several published research papers focused on the petrography, sequence stratigraphy, geochemistry, heavy mineral analysis, and whole-rock isotopes and geochronology (e.g. Gong et al, 1997;Wu, 1997;Huang et al, 2003;Yan et al, 2007;Xie, 2009;Lei et al, 2011;Yan et al, 2011;Wang et al, 2014), which greatly enhanced our understanding of the distribution of reservoir in the basin. Yan et al (2011) used detrital zircon geochronology of the eastern slope of the basin (Fig.…”