Marine incursion events in the Late Cretaceous Songliao Basin: Constraints from sulfur geochemistry records

Huang, Yongjian; Gao, Yang; Gu, Junjie; Wang, Pingkang; Huang, Qinghua; Feng, Zihui; Liu, Feng

doi:10.1016/j.palaeo.2013.03.017

Cited by 71 publications

(29 citation statements)

References 52 publications

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“…The Qingshankou Formation (K 2 qn) was deposited in a moderately deep lake setting influenced by periodic marine incursion events during a period of global sea-level rise (Liu et al, 1993;Huang et al, 2013). It is subdivided into three members (K 2 qn 1 , K 2 qn 2 , and K 2 qn 3 ) based on lithology ( Figure 3).…”

Section: Regional Settingmentioning

confidence: 99%

Lithofacies and depositional setting of a highly prospective lacustrine shale oil succession from the Upper Cretaceous Qingshankou Formation in the Gulong sag, northern Songliao Basin, northeast China

et al. 2019

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The lacustrine shale of the Upper Cretaceous Qingshankou Formation is the principal prospective unconventional target lithology, acting as source, reservoir, and seal. Lithofacies and associated storage capacity are two significant factors in shale oil prospectivity. This paper describes an investigation of the lower Qingshankou Formation lacustrine shale based on detailed description and analysis of cores, shale lithofacies characteristics, depositional setting, and stacking patterns.Seven lithofacies are recognized based on organic matter content, sedimentary structure, and mineralogy, all exhibiting rapid vertical and lateral changes controlled by the depositional setting and basin evolution. An overall trend from shallow-water to deep-water depositional environments is interpreted from the characteristics of the infilling sequences, characterized by increasing total organic carbon (TOC) and total clay content and decreasing layer thickness (i.e., from bedded to laminated then to massive sedimentary structures). Periods of deposition during shallowing cycles show a reverse trend in the sedimentary characteristics described above. The sedimentary rocks in the studied interval show three complete short-term cycles, each one containing progressive and regressive system tracts.

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Section: Regional Settingmentioning

confidence: 99%

Lithofacies and depositional setting of a highly prospective lacustrine shale oil succession from the Upper Cretaceous Qingshankou Formation in the Gulong sag, northern Songliao Basin, northeast China

et al. 2019

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“…Previous studies addressed in more detail the sedimentary sequence, paleontology and trace elements to inverse the paleolimnological conditions, and were mostly based on a single factor to conduct [1][2][3][4][5]. In addition, the controversy related to the marine incursion event in the Late Cretaceous Songliao Basin never stopped [6,7]. By the integrating of major and trace as well as isotope elements and clay minerals analyses in high resolution, in this paper the limnological environments could be reconstructed more effectively, supporting evidence for transgression and laying the foundation for the enrichment regularity of organic matter.…”

Section: Introductionmentioning

confidence: 99%

Paleolimnological Environments and Organic Accumulation of the Nenjiang Formation in the Southeastern Songliao Basin, China

Cao¹,

Guo²,

Shan³

et al. 2015

Oil Shale

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Thick layers of dark lacustrine mudstone in the Nenjiang Formation record the evolution of local depositional environments in the Songliao Basin. This evolution in lake water is accurately reflected in variations in trace element compositions in sedimentary rocks. In this study, element geochemistry and clay mineralogy in successive cores were investigated to have a closer insight into the paleolimnological environment and organic accumulation during the Nenjiang epoch. Analysis of the contents of Mn, Ca and Ti, as well as Rb/Sr and Sr/Cu revealed that paleoclimate cycled between warm and humid to semi-arid and hot. The study of Sr/Ba ratios, clay minerals and stable isotopes indicated that both high and low salinity existed in two stages, and that high salinity in Member 1 of the Nenjiang Formation is likely correlated with transgressive events. Analysis of the ratios of V/V + Ni, Ni/V and Th/U suggested that the paleolimnological environment was reducing. The investigation of paleotemperature demonstrated that the Nenjiang Formation was deposited in a warm water environment, analysis of carbon and oxygen isotopes revealed its deposition in open paleolake. High paleoproductivity and salinity as well as redox potentials represent the most favorable environment for oil shale enrichment.

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“…Nevertheless, Hou et al (2000) suggested that the massive hydrocarbon source rocks were developed under brackish-saline conditions and may be associated with marine transgressions. Recently, new lines of evidence regarding marine transgressions from fossils and sulfur geochemistry have been reported (Xi et al, 2011;Huang et al, 2013). Existing investigations reveal that the sedimentary environments are more complex and spatially heterogeneous Bechtel et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Compound-specific carbon isotope study on the hydrocarbon biomarkers in lacustrine source rocks from Songliao Basin

Wang

Song

Cao

et al. 2015

Organic Geochemistry

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Marine incursion events in the Late Cretaceous Songliao Basin: Constraints from sulfur geochemistry records

Cited by 71 publications

References 52 publications

Lithofacies and depositional setting of a highly prospective lacustrine shale oil succession from the Upper Cretaceous Qingshankou Formation in the Gulong sag, northern Songliao Basin, northeast China

Lithofacies and depositional setting of a highly prospective lacustrine shale oil succession from the Upper Cretaceous Qingshankou Formation in the Gulong sag, northern Songliao Basin, northeast China

Paleolimnological Environments and Organic Accumulation of the Nenjiang Formation in the Southeastern Songliao Basin, China

Compound-specific carbon isotope study on the hydrocarbon biomarkers in lacustrine source rocks from Songliao Basin

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