Geochemistry and origins of natural gases in the Yinggehai and Qiongdongnan basins, offshore South China Sea

Zircon U-Pb geochronology and heavy mineral composition constraints on the provenance of the middle Miocene deep-water reservoir sedimentary rocks in the Yinggehai-Song Hong Basin, South China Sea

“…2) (Gong et al, 1997;Geng et al, 1998;Gong and Li, 2004). Relatively high temperature and overpressure, rapid subsidence rate, large volumes and diapir structures typify this Cenozoic basin (Zhang et al, 1996;Hao et al, 1998;Huang et al, 2003Huang et al, , 2004Luo et al, 2003Luo et al, , 2009Clift and Sun, 2006;Hoang et al, 2010;Xie et al, 2014). These parameters are also significant for hydrocarbon production in the basin.…”

“…2). The depositional environment of the Meishan Formation was interpreted to from littoral to neritic delta facies (Gong et al, 1997 Gong et al (1997), Huang et al (2003) and Gong and Li (2004). 15.5 Ma, and increased between 15.5 and 10.5 Ma (Clift and Sun, 2006;Hoang et al, 2010).…”

“…15.5 Ma, and increased between 15.5 and 10.5 Ma (Clift and Sun, 2006;Hoang et al, 2010). The pressure coefficient and geothermal gradient can reach 2.0e2.3 and 4.25e4.56 C/100 m, respectively (Zhang et al, 1996;Huang et al, 2002Huang et al, , 2003. The depocenters are mainly controlled by NW-and roughly N-Strending faults (Sun et al, 2003), which show a migration to the southeastern basin between 21 and 16 Ma, which led to basin inversion and formation of an angular unconformity (Rangin et al, 1995;Clift and Sun, 2006).…”

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

“…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.…”

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

“…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.…”