A biomarker study of depositional paleoenvironments and source inputs for the massive formation of Upper Cretaceous lacustrine source rocks in the Songliao Basin, China

Song, Zhiguang; Yin, Qingrui; George, Simon C.; Wang, Li; Guo, Jiangtao; Feng, Zihui

doi:10.1016/j.palaeo.2012.12.007

Cited by 53 publications

(54 citation statements)

References 36 publications

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“…Prior studies have shown that the Qiangshankou and Nenjiang Formations, the two major sets of OM-rich source rocks, were deposited in a deep freshwater lake, but under eutrophic and anoxic conditions Bechtel et al, 2012;Song et al, 2013). 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.…”

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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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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“…3b). Samples from Upper K 2 n 1 have a TOC content (0.1-0.2%) lower than that of samples from the same strata in the SK1 borehole (Song et al, 2013) and core Zk3389 (Bechtel et al, 2012).…”

Section: Abundance and Types Of Organic Matter In The Houjingou Sectionmentioning

confidence: 80%

“…Previous studies of K 2 n 1+2 have shown that salinity and redox stratification coexisted in the water column (Wang et al, 2011;Bechtel et al, 2012;Song et al, 2013). The co-occurrence of gammacerance, MTTCs and aryl isoprenoids in Lower K 2 n 2 indicate a stratified water column and extremely reduced, anoxic or even euxinic bottom waters.…”

Section: Sedimentary Environments Of the Late Santonian Lower Nenjianmentioning

confidence: 90%

“…Previous studies suggested that the occurrence of aryl isoprenoids in K 2 n 1 + 2 indicated the existence of green sulphur bacteria during intermittent photic zone anoxia (Bechtel et al, 2012;Song et al, 2013). The presence of aryl isoprenoids in Lower K 2 n 2 samples could therefore indicate OM input from green sulphur bacteria.…”

Section: Changes In Terrigenous Organic Matter Input and Primary Prodmentioning

confidence: 91%

“…Analysis of the SK1 cores taken from the SLB, under the framework of the International Continental Scientific Drilling Program, resulted in several studies on Late Cretaceous paleoenvironmental and paleoclimatic changes using East Asian terrestrial records (e.g., Wang et al, 2013a, Wang, 2013Song et al, 2013;Ji et al, 2015). These systematic investigations indicate a gradual cooling of the SLB from the warmer Albian-Cenomanian through to the end of the Maastrichtian.…”

Section: Introductionmentioning

confidence: 99%

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Paleoenvironmental reconstruction of the Late Santonian Songliao Paleo-lake

Cao

Peng

et al. 2016

Palaeogeography, Palaeoclimatology, Palaeoecology

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Palaeoenvironment and organic matter of the Triassic Chang 9 lacustrine shales, Ordos Basin, China

Liu

Jiang

et al. 2019

Geological Journal

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The Ordos Basin, a large mainly non-marine basin, is an important petroliferous basin in northern China. The Triassic Chang 9 shales, including the delta plain shale (DPS), delta front shale (DFS), and deep lake shale (DLS), are proven to be the main source rocks in the lower Yanchang Formation (LYF). This study investigates the source rock potential, palaeoenvironment, and organic matter (OM) source. According to the OM thermal maturity, abundance, and type, the shales have excellent source rock potential. The DLS has the highest quality with average TOC of 7.08%, S 1 + S 2 of 14.41 mg HC/g rock, andType II 1 -II 2 . According to correlations of Rb/Sr versus Sr/Cu, the shales were mainly deposited in arid conditions. Based on the major element (S), trace elements (V, Ni, Co, Cr, U, and Th), rare earth element (Ce) concentrations, and biomarkers (Pr, Ph, dibenzofuran, fluorene, and dibenzothiophene), redox conditions for the DPS, DFS, and DLS were oxidizing, sub-oxidizing to sub-reducing, and reducing, respectively. The palaeosalinity was fresh-to brackish-water, ascertained by the trace elements (Sr and Ba) and biomarkers (gammacerane). The water stratification was controlled by the temperature changes and the palaeosalinity differences, and the maximum water depth was 100 m during the Chang 9 deposition. Aquatic microorganisms (e.g., algae, bacteria, and phytoplankton) were the main organic matter sources for the shales, mixed together with terrigenous plants in DPS and DFS. The DLS has the most aquatic microorganisms and has the least higher plant fragments, supported by the higher TOC (up to 14%), lowest vitrinite contents (Avg. = 14.1%), and highest liptinite contents (Avg. = 59.5%). Laterally, the DPS, DFS, and DLS were distributed successively from the lake margin to the depocentre. Vertically, the DLS, DFS, and DPS were developed successively from the bottom lake to the upper lake. The DLS was mainly formed in an environment of highlevel sapropelinite and favourable preservation conditions, and the DPS was mainly

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A biomarker study of depositional paleoenvironments and source inputs for the massive formation of Upper Cretaceous lacustrine source rocks in the Songliao Basin, China

Cited by 53 publications

References 36 publications

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

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

Paleoenvironmental reconstruction of the Late Santonian Songliao Paleo-lake

Palaeoenvironment and organic matter of the Triassic Chang 9 lacustrine shales, Ordos Basin, China

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