Lithofacies paleogeography and exploration significance of Sinian ...
2019/2/1 Sinian was cored completely, which shows the Doushantuo Formation has distinct sedimentary characteristics (Fig. 5), with grey silty dolomite, beige micritic dolomite intercalated by argillaceous dolomite, and algae striation in local part in the upper part, احصل على السعر
中扬子北部上震旦统陡山沱组沉积特征及演化 - 仁和软件
2016/3/1 Abstract: A large set of dark grey to black colored mudstone and shale deposited in the middle to lower part of the upper Sinian Doushantuo Formation in the middle Yangtze احصل على السعر
Stratigraphy and paleogeography of the Ediacaran Doushantuo
2011/6/1 The Ediacaran Doushantuo Formation (ca. 635–551 Ma) in South China contains exceptionally well-preserved fossils of multicellular eukaryotes including early animals, and it is احصل على السعر
(PDF) Sequence stratigraphic subdivision and correlation of the ...
PDF On Feb 1, 2015, Yang AH and others published Sequence stratigraphic subdivision and correlation of the Ediacaran (Sinian) Doushantuo Formation of Yangtze Plate, South China احصل على السعر
Integrated Ediacaran (Sinian) chronostratigraphy of South China
2007/10/8 Historically, the Ediacaran of South China, which extends from the base of the Doushantuo Formation to the base of the Cambrian, was traditionally assigned to the Upper احصل على السعر
峡东青林口地区新元古代地层序列及沉积演变
Rare Earth Elements and Carbon Isotope Geochemistry of the Doushantuo Formation in South China: Implication for Middle Ediacaran Shallow Marine Redox Conditions. Chinese Science احصل على السعر
New Advances in the Study of Biostratigraphy of the Sinian
2009/8/15 New Advances in the Study of Biostratigraphy of the Sinian (Ediacaran) Doushantuo Formation in South China[J]. Acta Geoscientica Sinica, 2009, (4): 421-432. doi: احصل على السعر
Sedimentary lithofacies characteristics and sweet-spot interval ...
The Sinian Doushantuo Formation is the oldest shale gas reservoir discovered in the world, which contains good shale gas shows as the Eyangye-1 and Zidi-1 wells in the Yichang Region of احصل على السعر
川东北—鄂西地区下震旦统陡山沱组烃源岩特征及形成环境
Abstract: The dark shale of the Doushantuo Formation is an important source rock of the Neoproterozoic Sinian in northeastern Sichuan and western Hubei. A series of outcrop profiles احصل على السعر
Characteristics and formation of sinian (Ediacaran) carbonate
2021/6/1 The Sichuan Basin is a large marine and continental basin in China, with marine carbonate rocks from the Sinian to the Lower Triassic. The Sinian strata in the Sichuan Basin احصل على السعر
Maturity Assessment of the Lower Cambrian and Sinian Shales
2021/1/15 The Lower Cambrian Niutitang and Sinian Doushantuo shales are the most important and widespread source rocks and target layers in South China. Reliable data of the thermal maturity of organic matter (OM) is widely used to assess hydrocarbon generation and is a key property used in determining the viability and hydrocarbon potential of these new shales. احصل على السعر
MICROFOSSILS DISCOVERED FROM THE SINIAN DOUSHANTUO
Abundant microfossils have been discovered from the Sinian Doushantuo phosphorites and chert nodules in South China.Here we report large acanthomorphic acritarchs,micro-algae and animal embryos from Doushantuo cherts at the Jiulongwan section in the eastern Yangtze Gorges area.Eight genera and 8 species are described for the first time in the eastern Yangtze Gorges احصل على السعر
峡东青林口地区新元古代地层序列及沉积演变
Rare Earth Elements and Carbon Isotope Geochemistry of the Doushantuo Formation in South China: Implication for Middle Ediacaran Shallow Marine Redox Conditions. Chinese Science Bulletin, 57(16): 1998-2006. doi: احصل على السعر
(PDF) Porosity characteristics of different lithofacies in marine
2019/12/1 The Sinian Doushantuo Formation has been identified as a promising shale gas reservoir in South China and potentially worldwide. This study aims to restore the paleo-temperature and paleo-pressure ...احصل على السعر
Integrated Ediacaran (Sinian) chronostratigraphy of South China
2007/10/8 Current Ediacaran chronostratigraphy and global correlations indicate that the upper Doushantuo/Wonoka/Shuram negative δ 13 C excursion ranges from ca. 560 Ma to 551 Ma, and therefore coincides with the evolutionary renovation of life. Feedback between evolutionary innovation and geochemical cycling was the key mechanism for this unique and احصل على السعر
New multicellular algal fossils and acritarchs in Doushantuo chert ...
2015/7/14 The late Neoproterozoic Doushantuo Formation in South China contains several exceptionally preserved biotas in its cherts, phosphorites, and black shales (Xiao et al., 1998b, 2002; Zhang et al., 1998).احصل على السعر
Ediacaran Acanthomorphic Acritarchs and Other Microfossils from
Silicified microfossils preserved in chert nodules of the Doushantuo Formation in the Yangtze Gorges area of South China have great potential to improve the biostratigraphic subdivision and correlation of the Ediacaran System.احصل على السعر
Pore characteristics of the Lower Sinian Doushantuo Shale in
2019/11/26 12 13 The Lower Sinian Doushantuo Shale comprises the oldest Neoproterozoic shale 14 gas reservoir in the Middle Yangtze Yichang area of China, which makes the study of 15 their pore ...احصل على السعر
Discussion on petrophysical evaluation of shale gas reservoir in the ...
2020/2/1 Being a new layer of shale gas exploration in China, the Sinian Doushantuo Formation located in western Hubei Province, which shale reservoir mineral composition is dominated by dolomite and ...احصل على السعر
神农架陡山沱组沉积特征及其对“鄂西海槽”的启示
Abstract: Paleogeographic reconstruction of the Ediacaran Doushantuo Formation in South China is controversial, and one of the key problems is the existence and distribution of the "West Hubei Trough". In this paper it presents stratigraphic and sedimentological evidence of the Doushantuo Formation from the Shennongjia area (Hubei Province) for the existence of "West Hubei احصل على السعر
Sedimentary lithofacies characteristics and sweet-spot interval ...
The Sinian Doushantuo Formation is the oldest shale gas reservoir discovered in the world, which contains good shale gas shows as the Eyangye-1 and Zidi-1 wells in the Yichang Region of western Hubei province, China. The shales in the Doushantuo Formation feature considerable thickness (135 m), high gas content (4.83 m 3 /t) and high fragile mineral content (up to 75%).احصل على السعر
Microfossils from the Upper Sinian (Late Neoproterozoic) Doushantuo
Chert of the Upper Sinian Doushantuo Formation near Changyang, western Hubei, China, contains an exceptionally well-preserved assemblage of spinose, spheroidal, and filamentous microfossils belonging to nineteen species. In this assemblage at least fifteen taxa are recognised to be plankton and only four to be microbenthos. The existing of large acanthomorphic احصل على السعر
DISCOVERY OF THE MACROFOSSILS IN THE TOP BEDS OF THE UPPER SINIAN ...
DISCOVERY OF THE MACROFOSSILS IN THE TOP BEDS OF THE UPPER SINIAN DOUSHANTUO FORMATION AT MIAOHE EASTERN YANGTZE GORGES[J]. Chinese Journal of Geology, 1991, 26(2): 201-201. Format. RIS(for احصل على السعر
Sedimentary lithofacies characteristics and sweet-spot interval ...
2019/9/1 The Doushantuo Formation sequence classification of the Eyangye-1, Zidi-1 and Zidi-2 wells show that the Doushantuo Formation consists of three third-order sequences (i.e. Dsq1, Dsq2 and Dsq3 in Fig. 2, Fig. 3 and Fig. 4, respectively) and each of the third-order sequences consists of a TST and a highstand system tract (HST).The sequence of Dsq1 احصل على السعر
Sedimentary lithofacies characteristics and sweet-spot
The Sinian Doushantuo Formation is the oldest shale gas reservoir discovered in the world, which contains good shale gas shows as the Eyangye-1 and Zidi-1 wells in the Yichang Region of western Hubei province, China. The shales in احصل على السعر
Microfossils from the Upper Sinian (Late Neoproterozoic) Doushantuo
Chert of the Upper Sinian Doushantuo Formation near Changyang, western Hubei, China, contains an exceptionally well-preserved assemblage of spinose, spheroidal, and filamentous microfossils belonging to nineteen species. In this assemblage at least fifteen taxa are recognised to be plankton and only four to be microbenthos. The existing of large acanthomorphic احصل على السعر
DISCOVERY OF THE MACROFOSSILS IN THE TOP BEDS OF THE UPPER SINIAN ...
DISCOVERY OF THE MACROFOSSILS IN THE TOP BEDS OF THE UPPER SINIAN DOUSHANTUO FORMATION AT MIAOHE EASTERN YANGTZE GORGES[J]. Chinese Journal of Geology, 1991, 26(2): 201-201. Format. RIS(for احصل على السعر
Sedimentary lithofacies characteristics and sweet-spot interval ...
2019/9/1 The Doushantuo Formation sequence classification of the Eyangye-1, Zidi-1 and Zidi-2 wells show that the Doushantuo Formation consists of three third-order sequences (i.e. Dsq1, Dsq2 and Dsq3 in Fig. 2, Fig. 3 and Fig. 4, respectively) and each of the third-order sequences consists of a TST and a highstand system tract (HST).The sequence of Dsq1 احصل على السعر
Geological characteristics and resource potential of the Upper Sinian ...
2015/12/1 In the Late Sinian, Doushantuo Formation, a set of source rocks composed of black shale, dark grayish black micritic limestone and carbon-bearing mudstone, was divided into a second-order sequence ...احصل على السعر
New material of microfossils from the Ediacaran Doushantuo
The holotype section of the Ediacaran (Sinian) in the Yangtze Gorges, which contains abundant fossils with a long research history, is one of the most importantاحصل على السعر
New recognition of carbonate nodules genesis in sinian doushantuo ...
2016/12/1 The carbonate nodules with strongly negative δ¹³C anomalies are widely developed in the black muddy shale in the forth member of the Doushantuo Formation from the Sinian System in the Zigui ...احصل على السعر
Porosity characteristics of different lithofacies in marine shale: A ...
DOI: 10.1016/j.petrol.2019.106856 Corpus ID: 213315926; Porosity characteristics of different lithofacies in marine shale: A case study of Neoproterozoic Sinian Doushantuo formation in Yichang area, Chinaاحصل على السعر
New advances in the study of the Sinian Doushantuoan acritarch
The genus of large-sized acanthomorphic acritarchs ,Tianzhushania,was named from Tianzhu Mountain in Changyang County,Hubei Province,where it was first described,and its typical species was first found from chert nodules(in thin sections )from the Sinian Doushantuo Formation.In this paper,the authors summarize the reports and researches about the genus published at home احصل على السعر
Sinian Gas Prospectivity in the Western Yangtze Craton ... - Springer
2022/11/25 13.3.1 Lithology and Lithofacies. During the early Sinian Doushantuo sedimentary period, transgression had caused sea level rising and marine sedimentary range extension, so that the original Nanhuan old-land was submerged or became relic islands, and 100–500 m-thick muddy sediments of the Doushantuo Formation were extensively deposited احصل على السعر
A New Idea of Sinian Doushantuo‘ an Metaphyte Fossils from
This paper gives a summary of the fossil data from the Sinian Doushantuo' an Lantian Formation in the Xiuning area, Anhui Province, China, and reports the genital butt structure comparable to that ...احصل على السعر
The tempo of Ediacaran evolution Science Advances
2021/11/3 The Doushantuo Fm (ca. 635 to 551 Ma ago) ranges in thickness from <40 to >100 m and is composed predominantly of black shale and carbonate. Large lateral facies change is associated with different depositional environments from platform to basin. ... M. Zhu, J. Zhang, A. Yang, Integrated Ediacaran (Sinian) chronostratigraphy of South China ...احصل على السعر
Phosphatized biotas from the Neoproterozoic Doushantuo
phosphatized biotas in the Doushantuo Formation, present new phosphatized fossils, and discuss their evolutionary implications. 1 Paleogeographic distribution of phosphatized bio-tas in the Doushantuo Formation Doushantuo phosphorites are widely spread on the Yangtze Platform>19@. The best-known examples are thoseاحصل على السعر
四川盆地震旦系陡山沱组烃源岩地球化学特征与有机质富集机制
关键词: 古老含油气系统, 深层, 元素地球化学, 有机质富集, 陡山沱组, 四川盆地 Abstract: Deep ancient strata system is getting more and more attention in the field of hydrocarbon exploration, among which the Sinian Doushantuo Formation of the Sichuan Basin is considered as one of the most potential source rock.During the past decades, few work aimed at this formation ...احصل على السعر
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