干旱区生态环境知识资源中心(Arid): Mineralogy and geochemistry of the Late Triassic Baluti Formation, Northern Iraq

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DOI	10.1016/j.jafrearsci.2021.104243
	Mineralogy and geochemistry of the Late Triassic Baluti Formation, Northern Iraq
	Hussain, Salim H.; Al-Juboury, Ali, I; Al-Haj, Mohammed A.; Armstrong-Altrin, John S.; Al-Lhaebi, Safwan F.
通讯作者	Al-Juboury, AI (corresponding author), Univ Mosul, Geol Dept, Mosul, Iraq.
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2021
卷号	181
英文摘要	The petrography and geochemistry of clastic rocks collected from two sections from the Baluti Formation northern Iraq, have been investigated to infer the depositional environment of the Late Triassic Baluti Formation. Petrographic study of the carbonate unit shows that they consist mainly of heterogeneous poorly sorted grainstones and packstones, ooids, intraclasts, peloids, bioclasts and green algae (Halimeda). The abundant and heterogeneous size of these constituents suggests a subtidal lagoon/oolitic shoal depositional environment with an open marine water circulation. Trace element concentrations of the shales and marlstones reveal a wide difference in the depositional environment. The paleoclimate proxies (C-value, Sr/Cu, Rb/Sr, Ga/Rb, and Sr/Ba ratios) and presence of illite suggest a hot and arid to semiarid climates during the deposition of the Buluti sediments, which coincide with the Late Triassic global warming. The combined use of the Cd/Mo and Co*Mn proxies indicate the deposition mainly in open marine settings on the continental margin associated with upwelling and subordinate restricted marine settings. Trace element redox proxies (V/(V + Ni), Th/U, V/Cr, Ni/Co, and V/Ni ratios indicates anoxic to dysoxic to marginally oxic marine conditions. This difference in paleoredox conditions is likely to arise from the variation in the hydrographic conditions of the depositional basin including water depth, upwelling oxidation degree in the water column and salinity.
英文关键词	Provenance Subtidal environment Geochemistry Mineralogy Palaeoenvironment
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000660988700008
WOS关键词	ORGANIC-MATTER ENRICHMENT ; DEPOSITIONAL ENVIRONMENT ; ELEMENT GEOCHEMISTRY ; KURDISTAN REGION ; VOLCANIC-ROCKS ; BLACK SHALES ; BASIN ; TRACE ; SEDIMENTS ; PALEOENVIRONMENT
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	Universidad Nacional Autónoma de México
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368507
作者单位	[Hussain, Salim H.; Al-Juboury, Ali, I; Al-Haj, Mohammed A.; Al-Lhaebi, Safwan F.] Univ Mosul, Coll Sci, Geol Dept, Mosul, Iraq; [Armstrong-Altrin, John S.] Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Proc Ocean & Costeros, Ciudad Univ, Ciudad De Mexico 04510, Cdmx, Mexico
推荐引用方式 GB/T 7714	Hussain, Salim H.,Al-Juboury, Ali, I,Al-Haj, Mohammed A.,et al. Mineralogy and geochemistry of the Late Triassic Baluti Formation, Northern Iraq[J]. Universidad Nacional Autónoma de México,2021,181.
APA	Hussain, Salim H.,Al-Juboury, Ali, I,Al-Haj, Mohammed A.,Armstrong-Altrin, John S.,&Al-Lhaebi, Safwan F..(2021).Mineralogy and geochemistry of the Late Triassic Baluti Formation, Northern Iraq.JOURNAL OF AFRICAN EARTH SCIENCES,181.
MLA	Hussain, Salim H.,et al."Mineralogy and geochemistry of the Late Triassic Baluti Formation, Northern Iraq".JOURNAL OF AFRICAN EARTH SCIENCES 181(2021).