Pyrite morphology in the first member of the Late Cretaceous Qingshankou;Formation, Songliao Basin, Northeast China

doi:10.1016/j.palaeo.2012.09.027

	Pyrite morphology in the first member of the Late Cretaceous Qingshankou;Formation, Songliao Basin, Northeast China
	Wang Pingkang 4; Huang Yongjian 1; Wang Chengshan 1; Feng Zihui 2; Huang Qinghua 2
刊名	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
	2013
卷号	385 页码:125-136
关键词	Pyrite morphology Redox condition First member of the Qingshankou Formation South well of "SLCORE I" Songliao Basin
ISSN号	0031-0182
DOI	10.1016/j.palaeo.2012.09.027
英文摘要	The study of sedimentary pyrite morphological characteristics provides useful information on depositional environments and early diagenic processes and can be used as an indicator of redox conditions in ancient lake bottom waters. The results of this study in the Songliao basin in northeastern China show that euhedral crystals and framboids are the dominant pyrite forms in the mudstones of the first member of the Qingshankou Formation (K(2)qn(1)). The framboidal size distribution indicates that during the deposition of K(2)qn(1), redox conditions in the bottom water fluctuated from oxic-dysoxic to euxinic-anoxic to oxic-dysoxic. The presence of euxinic-anoxic bottom water suggests that an anoxic event developed in the Songliao ancient-lake and continued for 196 ka. The development of an anoxic bottom environment was the most important factor in hydrocarbon source rock formation in the Songliao Basin. (C) 2012 Elsevier B.V. All rights reserved.
学科主题	结晶学与矿物学
WOS关键词	REACTIONS FORMING PYRITE ; FRAMBOIDAL PYRITE ; BLACK-SEA ; IRON ; SEDIMENTS ; 100-DEGREES-C ; DEPOSITION ; MARCASITE ; TEXTURE
WOS研究方向	Physical Geography ; Geology ; Paleontology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000322299700011
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40029]
专题	中国地质科学院地质研究所
作者单位	1.Chinese Acad Geol Sci, Inst Mineral Resources, Beijing 100037, Peoples R China. 2.China Univ Geosci, Beijing 100083, Peoples R China. 3.Daqing Oil Field Corp Ltd, Explorat & Dev Res Inst, Daqing 163712, Peoples R China. 4.中国地质科学院矿产资源研究所
推荐引用方式 GB/T 7714	Wang Pingkang,Huang Yongjian,Wang Chengshan,et al. Pyrite morphology in the first member of the Late Cretaceous Qingshankou;Formation, Songliao Basin, Northeast China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2013,385:125-136.
APA	Wang Pingkang,Huang Yongjian,Wang Chengshan,Feng Zihui,&Huang Qinghua.(2013).Pyrite morphology in the first member of the Late Cretaceous Qingshankou;Formation, Songliao Basin, Northeast China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,385,125-136.
MLA	Wang Pingkang,et al."Pyrite morphology in the first member of the Late Cretaceous Qingshankou;Formation, Songliao Basin, Northeast China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 385(2013):125-136.