Marinoan glacial aftermath in South China: Paleo-environmental evolution and organic carbon accumulation in the Doushantuo shales

Xiao, Wenyao; Cao, Jian; Luo, Bing; He, Yumei; Zhou, Gang; Zuo, Zhaoxi; Xiao, Di; Hu, Kai

doi:10.1016/j.chemgeo.2020.119838

Cited by 20 publications

(3 citation statements)

References 98 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Partial data of bitumen were from Gao et al (2017); Ni et al (2018); Shi et al (2017); Zhang et al (2019); Zhu et al (2022). Source rocks data were from Chen, Simoneit, et al (2017); Gao et al (2017); Jin et al (2014); Li, Liu, Song, Zhang, Sun, et al (2022); Liu (2018); Ni et al (2018); Shi et al (2017); Wang, Li, et al (2019); Wang, Li, Tian, et al (2020); Wei et al (2015); Xiao et al (2020); Xiao et al (2021); Yang et al (2012); Zhu et al (2022).…”

Section: Resultsmentioning

confidence: 99%

“…Box plot showing the distribution of present‐day total organic carbon (TOC pd ), hydrogen index (HI pd ), production index (PI pd ) content, and conversion rate (CR) in the Є 1 q (a), Deng‐3 Member (b) and Z 1 ds (c) source rocks of the Central Sichuan Basin. Data were from Chen et al (2018); Fang et al (2019); Gao et al (2016, 2017); Jin et al (2014); Li, Liu, Song, Zhang, Sun, et al (2022); Ni et al (2018); Shan et al (2015); Shi et al (2017); Wang et al (2014); Wang, Li, et al (2019); Xiao et al (2020); Xiao et al (2021); Yang et al (2012). …”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Reconstruction of palaeo‐oil reservoirs in the ultra‐deep and over‐mature Sinian Dengying Formation of the Central Sichuan Basin: Insights from basin and petroleum system modelling

Li,

Liu,

Song

et al. 2024

Geological Journal

View full text Add to dashboard Cite

Ultra‐deep Sinian carbonate rocks are rich in natural gas, and the Deng‐4 Member of the Central Sichuan Basin has been shown to have an extremely high degree of thermal evolution. They are characterized by dry gas produced due to the thermal cracking of palaeo‐oil reservoirs (PORs). The distribution of PORs as materials for the formation of cracked gas reservoirs remains unclear. The complex multistage evolution process and limited drilling data make it challenging to precisely and systematically recover a range of PORs. Based on basin and petroleum system modelling (BPSM), the bottom‐up migration and accumulation method was used to investigate the distribution of PORs. Research shows that the PORs in the Sinian Deng‐4 Member were mainly formed in the Early–Middle Triassic under the mixed contribution of Cambrian and Sinian source rocks, and the coupling of palaeostructural and trap settings controlled its accumulation. Generally, the distribution of PORs can be divided into two categories: one is located at the core of the uplift zone and is controlled by structural‐stratigraphic composite traps, whereas the other is controlled by a series of lithologic traps formed in the slope area. Sensitivity analysis showed that the distribution patterns of the PORs were mostly related to the facies conditions (physical characteristics) of the reservoirs. The widely distributed PORs provide necessary and sufficient material conditions for the formation of cracked Sinian gas reservoirs in the Central Sichuan Basin, and the North Slope area has great potential for natural gas exploration in the future.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Reconstruction of palaeo‐oil reservoirs in the ultra‐deep and over‐mature Sinian Dengying Formation of the Central Sichuan Basin: Insights from basin and petroleum system modelling

Li,

Liu,

Song

et al. 2024

Geological Journal

View full text Add to dashboard Cite

show abstract

“…As an important petroliferous basin in China, the Sichuan Basin is abundant in natural gas resources, with 85% of them hosted in the marine carbonate strata (Guo, 2011; Ma et al., 2019; Shi et al., 2018; 2020; Xiao et al., 2020; 2021). Specifically, the natural gas resources in the Lower Triassic Feixianguan Formation account for nearly 12% of the total in the marine carbonate strata.…”

Section: Introductionmentioning

confidence: 99%

A new scale shoal-forming model and natural gas exploration implications in Feixianguan Formation, northwestern Sichuan Basin, China

Han

Chao

Yang³

et al. 2021

Energy Exploration & Exploitation

View full text Add to dashboard Cite

As an important exploration target in the Sichuan Basin, the Lower Triassic Feixianguan Formation has been previously interpreted to be deposited in the trough-platform margin system according to the genetic model of classic lithofacies paleogeography. However, this model does not apply to the northwestern Sichuan Basin. Accordingly, this study proposed a new genetic model that highlighted the carbonate ramp based on the outcrop sections, drilling and logging data, and seismic sections. A large-scale regional regression was found to occur in Sichuan Basin at the end of the Late Permian, leading to the evolution of the original Kaijiang-Liangping Trough into a very shallow tidal flat/lagoon environment at the beginning of the Early Triassic. The sedimentary pattern during the Early Triassic was different from that during the Late Permian. A total of six long-term cycles (LSC1-LSC6) were identified within the Feixianguan Formation. The deposition of LSC1-LSC3 witnessed the filling of the trough to a large extent, and the depositional periods of LSC4 and LSC5 were the main shoal-forming periods. The Feixianguan Formation in the study area was speculated to be deposited in the continuous continental carbonate ramp. With the intensified uplifting of the Longmenshan island chain and the Kangdian ancient land on the northwestern margin of the Upper Yangtze Platform, a large number of terrigenous materials were input into the study area from west to east, leading to the continuous eastward migration of the carbonate facies belt during the deposition of the Fei 1 and Fei 2 Members. Meanwhile, large-area inner-ramp shoal bodies were formed during the deposition of LSC5. It became possible to find a giant gas reservoir belt in the Feixianguan Formation of the northwestern Sichuan Basin and the results of this study provide a new complement to the existing classic trough-platform margin shoal-forming model.

show abstract

Dynamic biogeochemical cycling and mineralization of manganese of hydrothermal origin after the Marinoan glaciation

et al. 2021

View full text Add to dashboard Cite

Marinoan glacial aftermath in South China: Paleo-environmental evolution and organic carbon accumulation in the Doushantuo shales

Cited by 20 publications

References 98 publications

Reconstruction of palaeo‐oil reservoirs in the ultra‐deep and over‐mature Sinian Dengying Formation of the Central Sichuan Basin: Insights from basin and petroleum system modelling

Reconstruction of palaeo‐oil reservoirs in the ultra‐deep and over‐mature Sinian Dengying Formation of the Central Sichuan Basin: Insights from basin and petroleum system modelling

A new scale shoal-forming model and natural gas exploration implications in Feixianguan Formation, northwestern Sichuan Basin, China

Dynamic biogeochemical cycling and mineralization of manganese of hydrothermal origin after the Marinoan glaciation

Contact Info

Product

Resources

About