干旱区生态环境知识资源中心(Arid): Organic matter enrichment in the first member of the Xiagou formation of the lower Cretaceous in the Jiuquan Basin, China

Arid

	Organic matter enrichment in the first member of the Xiagou formation of the lower Cretaceous in the Jiuquan Basin, China
	Pei Lixin; Gao Gang; Gang Wenzhe; Huang Zhilong; Ma Guofu; Yang Zhiming
来源期刊	Acta Geochimica
ISSN	2096-0956
出版年	2016
卷号	35 期号:1 页码:95-103
英文摘要	The sources and enrichment of organic matter in a sediment core in the first member of the Xiagou Formation (K_1g~1) from the Chang 2-2 borehole of the Jiuquan Basin, NW China, have been examined using Rock-Eval, maceral, carbon isotopes and biomarker data. This data indicates that highly variable organic matter sources and preservation conditions in response to climate change. TOC content, HI, and delta~(13)C value were strongly correlated with the abundance of gammacerane, woody organic matter content, steranes/hopanes ratio, and C_(29) sterane content. This correlation demonstrates the importance that the control of the salinity of the depositional environment and organic matter sources can have upon the enrichment, type, and carbon isotopic composition of organic matter. In the Jiuquan Basins relatively high temperature and arid climate, high salinity lakes with high primary productivity of algae, planktons, and bacteria, and good organic matter preservation conditions (anoxic bottom water) resulted in the enrichment of isotopically-light algae-bacterial organic matter. In the Jiuquan Basins regions with a relatively low temperature and wet climate, fresh lakes with low primary productivity of algae, planktons, and bacteria received significant terrigenous high plants input, resulting in the deposition of a low abundance of isotopically heavier terrestrial organic matter.
英文关键词	Enrichment Organic matter Lacustrine Lower Cretaceous Jiuquan Basin
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Mineralogy
CSCD记录号	CSCD:5797718
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335704
作者单位	Pei Lixin, (Beijing)College of Geosciences, China University of Petroleum, Beijing China.; Gao Gang, (Beijing)College of Geosciences, China University of Petroleum, Beijing China.; Gang Wenzhe, (Beijing)College of Geosciences, China University of Petroleum, Beijing China.; Huang Zhilong, (Beijing)College of Geosciences, China University of Petroleum, Beijing China.; Ma Guofu, Research Institute of Exploration and Development, Yumen Oilfield Company, CNPC, Jiuquan, Gansu China.; Yang Zhiming, Research Institute of Exploration and Development, Yumen Oilfield Company, CNPC, Jiuquan, Gansu China.
推荐引用方式 GB/T 7714	Pei Lixin,Gao Gang,Gang Wenzhe,et al. Organic matter enrichment in the first member of the Xiagou formation of the lower Cretaceous in the Jiuquan Basin, China[J],2016,35(1):95-103.
APA	Pei Lixin,Gao Gang,Gang Wenzhe,Huang Zhilong,Ma Guofu,&Yang Zhiming.(2016).Organic matter enrichment in the first member of the Xiagou formation of the lower Cretaceous in the Jiuquan Basin, China.Acta Geochimica,35(1),95-103.
MLA	Pei Lixin,et al."Organic matter enrichment in the first member of the Xiagou formation of the lower Cretaceous in the Jiuquan Basin, China".Acta Geochimica 35.1(2016):95-103.