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, Yuntao1; Wang, Huajian1; Wang, Xiaomei1; Zhai, Lina2; Wu, Chaodong3,4; Zhang, Shuichang1
2020-01-15
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume538Pages:13
Corresponding AuthorZhang, Shuichang(sczhang@petrochina.com.cn)
AbstractThe 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.
KeywordCarbonate fluorapatite Rare earth elements Cerium anomaly Europium anomaly Yangtze Block Oxygenation
DOI10.1016/j.palaeo.2019.109459
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000508751800041
PublisherELSEVIER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/165371
Collection海洋地质与环境重点实验室
Corresponding AuthorZhang, Shuichang
Affiliation1.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
Recommended Citation
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.
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