干旱区生态环境知识资源中心(Arid): Petrography and geochemistry of the Neogene continental redbeds in the Eshtehard area, Alborz Province, Iran: insights into tectonic setting, provenance and paleoclimate

Arid

DOI	10.1007/s12517-021-08236-3
	Petrography and geochemistry of the Neogene continental redbeds in the Eshtehard area, Alborz Province, Iran: insights into tectonic setting, provenance and paleoclimate
	Zaheri, Masoomeh; Rafiei, Behrouz; Alipoor, Reza
通讯作者	Rafiei, B (corresponding author), Bu Ali Sina Univ, Dept Geol, Mahdieh St, Hamadan, Hamadan, Iran.
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2021
卷号	14 期号:18
英文摘要	The present study provides systematic petrographical and geochemical analyses of the Neogene continental successions of the Eshtehard area to investigate their tectonic setting, provenance and paleoclimate condition, and recycling effect. The Neogene successions are subdivided into five stratigraphic units (M-1 to M-5). Eighteen medium- to coarse-grained sandstone and 22 mudstone samples were selected from the Mard Abad, Eshtehard, Rud Shur, and Salt Mine sections in the Eshtehard area (NW Central Iran Structural Zone). A combined study of petrography (point-counting method) and geochemistry (ICP-MS) has been carried out in this study. The ternary diagrams (QtFL, QmFLt, and LmLvLs) for detrital modes and the discrimination diagram reveal that the studied samples from the units M-1 to M-5 were deposited in a back-arc basin. The Ti/Zr vs. La/Sc bivariate diagram and La-Th-Sc, Th-Co-Zr/10, and Th-Sc-Zr/10 triangular diagrams indicate that mudstones from the Neogene continental deposits in the Eshtehard area were potentially derived from intermediate igneous rocks. The low CIA (55.78 to 69.36) and C-values (0.27 to 0.53) of mudstones together with their position in A-CN-K and SiO2 vs. (Al2O3 + K2O + Na2O) plots indicate weak to moderate chemical weathering of the source material in arid to semi-arid paleoclimate conditions. The Neogene siliciclastic deposits in the Eshtehard area were derived from intermediate igneous source rocks within a back-arc basin north of the Urumieh-Dokhtar magmatic arc.
英文关键词	Continental deposits Provenance Eshtehard area Back-arc basin Urumieh-Dokhtar magmatic arc
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000693036900004
WOS关键词	PALEOPROTEROZOIC SERPENT FORMATION ; MAJOR-ELEMENT GEOCHEMISTRY ; CHINA IMPLICATIONS ; CRETACEOUS SHALES ; SEDIMENTARY-ROCKS ; SOUTH-AFRICA ; RARE-EARTH ; OIL-SHALE ; HURONIAN SUPERGROUP ; TRIASSIC SANDSTONES
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368480
作者单位	[Zaheri, Masoomeh; Rafiei, Behrouz; Alipoor, Reza] Bu Ali Sina Univ, Dept Geol, Mahdieh St, Hamadan, Hamadan, Iran
推荐引用方式 GB/T 7714	Zaheri, Masoomeh,Rafiei, Behrouz,Alipoor, Reza. Petrography and geochemistry of the Neogene continental redbeds in the Eshtehard area, Alborz Province, Iran: insights into tectonic setting, provenance and paleoclimate[J],2021,14(18).
APA	Zaheri, Masoomeh,Rafiei, Behrouz,&Alipoor, Reza.(2021).Petrography and geochemistry of the Neogene continental redbeds in the Eshtehard area, Alborz Province, Iran: insights into tectonic setting, provenance and paleoclimate.ARABIAN JOURNAL OF GEOSCIENCES,14(18).
MLA	Zaheri, Masoomeh,et al."Petrography and geochemistry of the Neogene continental redbeds in the Eshtehard area, Alborz Province, Iran: insights into tectonic setting, provenance and paleoclimate".ARABIAN JOURNAL OF GEOSCIENCES 14.18(2021).