IDENTIFICATION OF PRIMARY CE-ANOMALY SIGNATURES IN FOSSIL BIOGENIC APATITE: IMPLICATION FOR THE CAMBRIAN OCEANIC ANOXIA AND PHOSPHOGENESIS

dc.contributor.author	Morad S.
dc.contributor.author	Felitsyn S.
dc.date.accessioned	2021-02-22T07:40:52Z
dc.date.available	2021-02-22T07:40:52Z
dc.date.issued	2001
dc.identifier	https://elibrary.ru/item.asp?id=13377081
dc.identifier.citation	Sedimentary Geology, 2001, 143, 3-4, 259-264
dc.identifier.issn	0037-0738
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/25345
dc.description.abstract	Based on REE analyses of 105 world-wide distributed Cambrian fossil apatite samples and eight late Neoproterozoic phosphate concretions, a close relationship is established between the concentrations of MREE and Ce anomalies. Shale La/SmN ratios of 0.35 is suggested as a critical value for the discrimination of the natural Ce anomaly acquired during pre-burial/early diagenesis by biogenic apatite from an artificial Ce anomaly induced due to the calculation. Ce anomalies in apatites with flat REE distribution and La/SmN ratio >0.35 may be used as indicative of oceanic anoxia.
dc.subject	Cambrian
dc.subject	Ce-anomaly
dc.subject	oceanic anoxia
dc.title	IDENTIFICATION OF PRIMARY CE-ANOMALY SIGNATURES IN FOSSIL BIOGENIC APATITE: IMPLICATION FOR THE CAMBRIAN OCEANIC ANOXIA AND PHOSPHOGENESIS
dc.type	Статья
dc.subject.age	Paleozoic::Cambrian	en
dc.subject.age	Палеозой::Кембрийская	ru

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