Elemental geochemistry of lower Cambrian phosphate nodules in Guizhou Province, South China: An integrated study by LA-ICP-MS mapping and solution ICP-MS

doi:10.1016/j.palaeo.2019.109459

IOCAS-IR > 海洋地质与环境重点实验室

	Elemental geochemistry of lower Cambrian phosphate nodules in Guizhou Province, South China: An integrated study by LA-ICP-MS mapping and solution ICP-MS
	Ye, Yuntao 1; Wang, Huajian 1; Wang, Xiaomei 1; Zhai, Lina 2; Wu, Chaodong 3,4; Zhang, Shuichang 1
	2020-01-15
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	538 页码:13
通讯作者	Zhang, Shuichang(sczhang@petrochina.com.cn)
摘要	The late Ediacaran to early Cambrian transition was a critical interval in Earth history, during which both the environment and life experienced dramatic change. Relationships between these events, however, are widely debated. This time interval also witnessed the occurrence of massive phosphate deposits. Studies on the characteristics, origins, and depositional context of this geochemical archive may provide important insights into not only the ore-forming process but also the coevolution of the Earth surface system. Here, phosphate nodules from two sections (Jinsha and Songtao) are investigated using in-situ LA-ICP-MS mapping and solution ICP-MS methods. Elemental images and factor analyses of the LA-ICP-MS dataset show that Ca, P, and Sr are evenly distributed and co-enriched within the nodule, whereas iron-related elements (Fe, As, and Mo) are roughly present as concentric layers. The PAAS-normalized REE patterns of the Jinsha samples exhibit moderately negative Ce anomalies and pronounced MREE enrichments, possibly related to uptake of REE released by iron oxyhydroxides during early diagenesis. In contrast, the Songtao samples are characterized by more seawater-like signals with significantly lower Ce/Ce* and higher Eu/Eu* values. These positive Eu anomalies are ascribed to active submarine hydrothermal vents along the Yangtze Platform margin. Based on a compilation of published Ce/Ce* data, we suggest that the prominent negative Ce anomalies during the Ediacaran Cambrian phosphogenesis give evidence of possible link between P dynamics and ocean oxygenation.
关键词	Carbonate fluorapatite Rare earth elements Cerium anomaly Europium anomaly Yangtze Block Oxygenation
DOI	10.1016/j.palaeo.2019.109459
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2017YFC0603101] ; National Science and Technology Major Project of the Ministry of Science and Technology of the People's Republic of China[2016ZX05004001] ; National Natural Science Foundation of China[41530317] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010101] ; Scientific Research and Technological Development Project of CNPC[2016A-0200]
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000508751800041
出版者	ELSEVIER
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/165371
专题	海洋地质与环境重点实验室
通讯作者	Zhang, Shuichang
作者单位	1.China Natl Petr Corp, Res Inst Petr Explorat & Dev, Key Lab Petr Geochem, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 3.Peking Univ, Sch Earth & Space Sci, Minist Educ, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China 4.Peking Univ, Inst Oil & Gas, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Ye, Yuntao,Wang, Huajian,Wang, Xiaomei,et al. Elemental geochemistry of lower Cambrian phosphate nodules in Guizhou Province, South China: An integrated study by LA-ICP-MS mapping and solution ICP-MS[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,538:13.
APA	Ye, Yuntao,Wang, Huajian,Wang, Xiaomei,Zhai, Lina,Wu, Chaodong,&Zhang, Shuichang.(2020).Elemental geochemistry of lower Cambrian phosphate nodules in Guizhou Province, South China: An integrated study by LA-ICP-MS mapping and solution ICP-MS.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,538,13.
MLA	Ye, Yuntao,et al."Elemental geochemistry of lower Cambrian phosphate nodules in Guizhou Province, South China: An integrated study by LA-ICP-MS mapping and solution ICP-MS".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 538(2020):13.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
1-s2.0-S003101821930（4697KB）	期刊论文	出版稿	限制开放	CC BY-NC-SA	浏览