Correlation between highly abundant oil-prone leiosphaerid acritarchs and hydrocarbon source rocks from the Triassic Yanchang Formation, eastern Gansu Province, Northwestern China

doi:10.1016/j.gr.2008.04.006

	Correlation between highly abundant oil-prone leiosphaerid acritarchs and hydrocarbon source rocks from the Triassic Yanchang Formation, eastern Gansu Province, Northwestern China
	Ji, Li-ming 1,2; Meng, Fan-wei 1; Schiffbauer, James D.3; Xu, Jin-li ; Yan, Kui 1; Shu, Jun-wu 1
刊名	GONDWANA RESEARCH
	2008-10-01
卷号	14 期号:3 页码:554-560
关键词	Ordos Basin Xifeng Oilfield Yanchang Formation acritarch hydrocarbon source rock
ISSN号	1342-937X
DOI	10.1016/j.gr.2008.04.006
文献子类	Letter
英文摘要	An abundance of acritarchs, dominated by Leiosphaeridia, was extracted from the Middle and Upper Triassic cores of Ordos Basin (Northwestern China) by means of palynological maceration. Phycomata of Leiosphaeridia occurred in clusters, bunches, and single vesicular forms, occasionally with connecting macroalgal branches indicating their in-situ preservation. Apart from Proterozoic and Early Paleozoic marine Leiosphaeridia, the highly abundant leiosphaerids from the Yanchang Formation in Northwestern China likely came from a lacustrine environment, and the assemblage includes both phytoplanktonic green algae and spores of muticellular algae. TOC and delta(13)Corg in the Middle and Upper Triassic sediments of the basin show a correlation with the abundance of leiosphaefids. This correlation suggests that leiosphaefids were important biological precursors for the generation of petroleum in the main Chang 7-3 hydrocarbon source rocks. (C) 2008 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
WOS关键词	ALGAE ; INDICATORS ; DELTA-C-13 ; GONDWANA ; URUGUAY ; CANADA ; FLOW
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000258812500020
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/70022]
专题	中国科学院地质与地球物理研究所
通讯作者	Ji, Li-ming
作者单位	1.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Beijing 100864, Peoples R China 2.Chinese Acad Sci, Key Lab Gas Geochem, Inst Geol & Geophys, Beijing 100864, Peoples R China 3.Virginia Polytech Inst & State Univ, Dept Geosci, Blacksburg, VA 24061 USA
推荐引用方式 GB/T 7714	Ji, Li-ming,Meng, Fan-wei,Schiffbauer, James D.,et al. Correlation between highly abundant oil-prone leiosphaerid acritarchs and hydrocarbon source rocks from the Triassic Yanchang Formation, eastern Gansu Province, Northwestern China[J]. GONDWANA RESEARCH,2008,14(3):554-560.
APA	Ji, Li-ming,Meng, Fan-wei,Schiffbauer, James D.,Xu, Jin-li,Yan, Kui,&Shu, Jun-wu.(2008).Correlation between highly abundant oil-prone leiosphaerid acritarchs and hydrocarbon source rocks from the Triassic Yanchang Formation, eastern Gansu Province, Northwestern China.GONDWANA RESEARCH,14(3),554-560.
MLA	Ji, Li-ming,et al."Correlation between highly abundant oil-prone leiosphaerid acritarchs and hydrocarbon source rocks from the Triassic Yanchang Formation, eastern Gansu Province, Northwestern China".GONDWANA RESEARCH 14.3(2008):554-560.