Research Progress of Ediacaran (Sinian) Biostratigraphy in South China

Yin, Changqing; Tang, Feng

doi:10.1007/978-981-19-5666-9_4

Cited by 3 publications

(3 citation statements)

References 90 publications

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“…The division of the stratigraphy of the Neoproterozoic Nanhua System has been controversial (Liu, 1991; Zhou et al, 2004). The controversy hinges on whether the stratigraphy of the Liantuo Formation is part of the Nanhua System, which involves the issues related to the chronostratigraphy of the Liantuo Formation, the delineation of the bottom boundary of the Nanhua System and the boundary between the Nanhua System and the underlying Qingbaikou System.…”

Section: Resultsmentioning

confidence: 99%

Sedimentary sequence and evolutionary characteristics of the rift system of Neoproterozoic Nanhua System and Doushantuo Formation: A case study from the northeastern margin of Sichuan Basin

Bian,

Sun,

Chen

et al. 2023

Geological Journal

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Neoproterozoic strata are widely developed in the Upper Yangtze region of South China, among which the Sinian Dengying Formation has been discovered with numerous large gas fields in the Sichuan Basin, and hence they have become an essential domain for natural gas exploration and development. The early‐to‐middle Neoproterozoic Nanhua System and Doushantuo Formation are characterized by rifting deposits in the northeastern margin of Sichuan Basin, but their depositional succession and sequence architectures are still unclear, which has largely restricted our understanding of the resource potential of these strata. In this paper, based on the outcrops of the Neoproterozoic Nanhua System and Doushantuo Formation in the northeastern margin of Sichuan Basin, we describe the stratigraphic distribution and sedimentary evolutionary characteristics, and establish the regional stratigraphic framework, sedimentary cycle and evolutionary sequence of the Nanhua System and Doushantuo Formation. The results show that the lithology of the Nanhua System and Doushantuo Formation is primarily composed of conglomerate, conglomeratic sandstone, medium‐fine sandstone, siltstone, mudstone, shale and tillite; a variety of sedimentary facies including alluvial fan, river, delta, coastal shore, shelf, basin and tillite were developed; five third‐order sequences could be identified, representing multiple cycles of marine transgression and regression. The climate during the deposition of the Nanhua System and Doushantuo Formation underwent from a warm and humid pre‐glacial period through cold and arid multiple glacial periods to a warm and humid interglacial period, which consequently formed a sedimentary sequence of alluvial fan and fluvial delta to tillite during the early period, shelf basin to tillite during the middle period and slope basin to delta facies during the late period. In terms of a plan view, the depositional pattern is composed of alluvial fans and deltas at the proximal part of the rift, deep‐water shelf to slope at the middle part of the rift and slope to basin facies at the central part of the rift. Finally, we propose that large‐scale distribution of high‐quality source rocks developed in the interglacial Datangpo and Doushantuo formations, while fluvial‐deltaic reservoirs occurred in the Gucheng, Nantuo and Doushantuo formations, thus showing favourable resource potential and exploration prospects within the Sichuan Basin.

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Section: Resultsmentioning

confidence: 99%

Sedimentary sequence and evolutionary characteristics of the rift system of Neoproterozoic Nanhua System and Doushantuo Formation: A case study from the northeastern margin of Sichuan Basin

Bian,

Sun,

Chen

et al. 2023

Geological Journal

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“…Neoproterozoic to Paleozoic strata are widely exposed in the region, comprising (from oldest to youngest) the Sinian Dengying Formation, the Cambrian Yuhucun Formation, Qiongzhusi Formation, Canglangpu Formation, Longwangmiao Formation, Xiwangmiao Formation, and Loushanguan Formation, and the Permian Yangxin Formation. 3 , 58 , 59 …”

Section: Methodsmentioning

confidence: 99%

A putative triradial macrofossil from the Ediacaran Jiangchuan Biota

Zhao,

Mussini,

et al. 2024

iScience

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“…The first stage is represented by the deposition of the "cap carbonate" and the second stage represents the flourishing of eukaryotic microorganisms that are dominated by the large acanthomorphic acritarchs. Further subdivisions of the Ediacaran System were also proposed based on the Ediacaran succession in South China (e.g., Zhu et al, 2007aZhu et al, , 2016Zhu et al, , 2022Liu et al, 2012Liu et al, , 2016Zhou et al, 2019b). However, a consensus on the subdivision has not yet been reached.…”

Section: Chronostratigraphy Of the Cryogenian And Ediacaran Periodsmentioning

confidence: 99%

Cryogenian and Ediacaran integrative stratigraphy, biotas, and paleogeographical evolution of the Qinghai-Tibetan Plateau and its surrounding areas

Sun,

Khan,

Yang

et al. 2024

Sci. China Earth Sci.

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Research Progress of Ediacaran (Sinian) Biostratigraphy in South China

Cited by 3 publications

References 90 publications

Sedimentary sequence and evolutionary characteristics of the rift system of Neoproterozoic Nanhua System and Doushantuo Formation: A case study from the northeastern margin of Sichuan Basin

Sedimentary sequence and evolutionary characteristics of the rift system of Neoproterozoic Nanhua System and Doushantuo Formation: A case study from the northeastern margin of Sichuan Basin

A putative triradial macrofossil from the Ediacaran Jiangchuan Biota

Cryogenian and Ediacaran integrative stratigraphy, biotas, and paleogeographical evolution of the Qinghai-Tibetan Plateau and its surrounding areas

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