2013
DOI: 10.1007/s12583-013-0312-7
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Basin-scale sand deposition in the Upper Triassic Xujiahe formation of the Sichuan Basin, Southwest China: Sedimentary framework and conceptual model

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Cited by 13 publications
(4 citation statements)
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“…The Xujiahe Formation that overlies the Leikoupo Formation is a set of very thick continental clastic rocks, formed after Indosinian tectonism in the Late Triassic. The Xu 1 and Xu 2 members fill the lower areas on the unconformity surface, and the Xu 3 member is a useful isochronous interface (Gao et al., 2011; Tan et al., 2013; Zhong et al., 2016) that is easily tracked in seismic profiles due to its obvious reflection characteristics and widespread regional continuity (Figure 4). Therefore, according to the principles of base-level selection, the Xu 3 member is selected as the base level for making an accurate reconstruction of karst thickness.…”
Section: Methods and Techniquesmentioning
confidence: 99%
“…The Xujiahe Formation that overlies the Leikoupo Formation is a set of very thick continental clastic rocks, formed after Indosinian tectonism in the Late Triassic. The Xu 1 and Xu 2 members fill the lower areas on the unconformity surface, and the Xu 3 member is a useful isochronous interface (Gao et al., 2011; Tan et al., 2013; Zhong et al., 2016) that is easily tracked in seismic profiles due to its obvious reflection characteristics and widespread regional continuity (Figure 4). Therefore, according to the principles of base-level selection, the Xu 3 member is selected as the base level for making an accurate reconstruction of karst thickness.…”
Section: Methods and Techniquesmentioning
confidence: 99%
“…The belt overlaps with the arcshaped skirt belt in eastern Sichuan. During the Jurassic period, due to the disappearance of the Songpan Ganzi Sea and the Western Sea, all of the surrounding areas were surrounded and evolved into inland lakes [51][52][53]. The Early to Middle Jurassic basins were deep lakes, semi-deep lakes, and shallow lakes, where rivers, lakes, and deltas formed [54,55].…”
Section: Geological Settingmentioning
confidence: 99%
“…Previous sedimentary and stratigraphic studies showed that the Early–Middle Triassic palaeogeography is characterized by a lateral facies transition from clastic to carbonate away from the southern edge of the basin to the interior (Liu & Tong, ; Long et al., ; Tan et al., ; Wei, Zhang, He, Wu, & Yang, ; Zhao et al., ), indicating that the south‐western basin margin was bounded and sourced by a highland to the south. The highland consists of Neoproterozoic basement and is referred to as the Kangdian basement (referred to the Kangdian Oldland or Kangdian Axis by Chinese researchers) (Dai et al., ; Li, ; Luo, ; Tan et al., ; Wang, Yang, & Li, ) (Figure ). However, in response to closure of the Paleo‐Tethys Ocean, the entire basin transitioned into a foreland basin with detritus sourced mainly from the Longmen Shan thrust belt and the Qinling‐Dabie orogen to the west and north of the basin.…”
Section: Introductionmentioning
confidence: 99%