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	Special elemental sulfur in the dolomite reservoirs of the giant Puguang Gas Field: Proof of crude oil involved thermochemical sulfate reduction
	Zhang, Xuefeng
	2011
关键词	elemental sulfur thermochemical sulfate reduction (TSR) Puguang Gas Field Sichuan Basin HIGH H2S CONTENTS SICHUAN BASIN CHINA EVAPORITES
英文摘要	Special elemental sulfurs formed by thermochemical sulfate reduction (TSR) are reported for the first time in the Upper Permian Changxing Formation and the Lower Triassic Feixianguan Formation, Northeastern Sichuan Basin, Southwest China. They occur mainly as single pellets with round morphology, and partly in semi or 1/4 pellets of 10 to 100 mu m in diameter, or form interpenetrating grains. Most of them precipitate at the inner wall of the vugs, oomoldic or inter-granular pores of the dolomitic reservoirs. Petrogenetic sequence analysis demonstrates that they postdate the dolomite formation and cementation, while are prior to the late calcite and quartz cementation The sulfur develops restrictively in the section where pyrobitumen is found, namely in the paleo-oil window, which strongly supports that the crude oil/liquid hydrocarbon had been involved in the TSR. (c) 2011 Published by Elsevier Ltd.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000306467200037&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Geosciences, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mining & Mineral Processing; EI; CPCI-S(ISTP); 1
语种	英语
DOI标识	10.1016/j.proeps.2011.09.037
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/156189]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Zhang, Xuefeng. Special elemental sulfur in the dolomite reservoirs of the giant Puguang Gas Field: Proof of crude oil involved thermochemical sulfate reduction. 2011-01-01.

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