DOI: 10.1007/s00531-013-0903-7
Scopus记录号: 2-s2.0-84881610490
论文题名: Tectonic and climate control of oil shale deposition in the Upper Cretaceous Qingshankou Formation (Songliao Basin, NE China)
作者: Jia J. ; Liu Z. ; Bechtel A. ; Strobl S.A.I. ; Sun P.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2013
卷: 102, 期: 6 起始页码: 1717
结束页码: 1734
语种: 英语
英文关键词: Biomarker
; Climate and tectonics
; Oil shale
; Paleo-lake environment
; Songliao Basin
Scopus关键词: accumulation rate
; anoxic conditions
; biomarker
; Cretaceous
; deposition
; hydrocarbon reservoir
; hydrocarbon resource
; kerogen
; oil shale
; paleoclimate
; paleolimnology
; sequence stratigraphy
; source rock
; systems tract
; tectonic setting
; China
; Songliao Basin
; Embryophyta
英文摘要: Oil shales were deposited in the Songliao Basin (NE China) during the Upper Cretaceous period, representing excellent hydrocarbon source rocks. High organic matter (OM) contents, a predominance of type-I kerogen, and a low maturity of OM in the oil shales are indicated by bulk geochemical parameters and biomarker data. A major contribution of aquatic organisms and minor inputs from terrigenous land plants to OM input are indicated by n-alkane distribution patterns, composition of steroids, and organic macerals. Strongly reducing bottom water conditions during the deposition of the oil shale sequences are indicated by low pristane/phytane ratios, high C14-aryl-isoprenoid contents, homohopane distribution patterns, and high V/Ni ratios. Enhanced salinity stratification with mesosaline and alkaline bottom waters during deposition of the oil shales are indicated by high gammacerane index values, low MTTC ratios, high β-carotene contents, low TOC/S ratios, and high Sr/Ba ratios. The stratified water column with anoxic conditions in the bottom water enhanced preservation of OM. Moderate input of detrital minerals during the deposition of the oil shale sequences is reflected by titanium concentrations. In this study, environmental conditions in the paleo-lake leading to OM accumulation in the sediments are related to sequence stratigraphy governed by climate and tectonics. The first Member of the Qingshankou Formation (K2qn1) in the Songliao Basin, containing the oil shale sequence, encompasses a third-order sequence that can be divided into three system tracts (transgressive system tract-TST, highstand system tract-HST, and regressive system tract-RST). Enrichment of OM changed from low values during TST-I to high-moderate values during TST-II/III and HST-I/II. Low OM enrichment occurs during RST-I and RST-II. Therefore, the highest enrichment of OM in the sediments is related to stages of mid-late TST and early HST. © 2013 Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84881610490&doi=10.1007%2fs00531-013-0903-7&partnerID=40&md5=9dd1519e9b84d8e97ef339fb488f17cf
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70525
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Institute of Geology, Chinese Academy of Geological Sciences, Beijing, 100037, China; College of Earth Sciences, Jilin University, Changchun, 130061, China; Department Applied Geosciences and Geophysics, Montanuniversität Leoben, Peter-Tunner-Str. 5, 8700 Leoben, Austria
Recommended Citation:
Jia J.,Liu Z.,Bechtel A.,et al. Tectonic and climate control of oil shale deposition in the Upper Cretaceous Qingshankou Formation (Songliao Basin, NE China)[J]. International Journal of Earth Sciences,2013-01-01,102(6)