干旱区生态环境知识资源中心(Arid): Paleoenvironmental reconstruction of the Middle Jurassic rocks in western India using benthic foraminifera

Arid

DOI	10.1007/s10347-023-00668-5
	Paleoenvironmental reconstruction of the Middle Jurassic rocks in western India using benthic foraminifera
	Jain, Sreepat; Alhussein, Mohamad; Ahmed, Mohamed S.; Abdelhady, Ahmed Awad
通讯作者	Abdelhady, AA
来源期刊	FACIES
ISSN	0172-9179
EISSN	1612-4820
出版年	2023
卷号	69 期号:3
英文摘要	The Middle Jurassic (Bajocian-Callovian) benthic foraminifera in the Jhura Dome (Kachchh, Western India) were quantitatively analyzed to reconstruct the paleoenvironment. Three distinct assemblages are identified; these are dominated by a particular benthic foraminiferal species, and include, the moderately mesotrophic and well-oxygenated Protomarssonella poddari, moderately mesotrophic and moderately oxygenated Lenticulina subalata, and the highly mesotrophic and moderately oxygenated Epistomina mosquensis-Reophax metensis. Based on species bathymetry, an inner to middle neritic (50-100 m) depth range is inferred for the studied section. The Bathonian is marked by a carbonate-dominated moderately mesotrophic regime, whereas the Callovian is siliciclastic-dominated and reflects highly mesotrophic conditions. The changes in facies and the trophic regime are attributed to a change in climate from a hot and drier Bathonian to a cooler and wetter Callovian with a progressive increase in the terrigenous input (= nutrient input) and in reduced oxygenation of bottom waters. The Canonical Correspondence Analysis yielded sea level, Benthic Foraminiferal Oxygen Index (BFOI) and paleoproductivity as the main factors controlling the distribution patterns of the studied benthic foraminifera. Additionally, within a shallow epeiric basin and in moderately to well-oxygenated bottom water conditions, the role of nutrients and oxygen availability overrides the influence of bathymetry that at the deeper settings, played a far greater role.
英文关键词	Benthic foraminifera Paleoxygenation Paleoproductivity Paleoenvironment Middle Jurassic Kachchh
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001003639400001
WOS关键词	SEA-LEVEL CHANGES ; PREBETIC ZONE ; DISTRIBUTION PATTERN ; EGYPT IMPLICATIONS ; BETIC CORDILLERA ; LUSITANIAN BASIN ; DHRUMA FORMATION ; SHELF DEPOSITS ; DAKHLA OASIS ; ASSEMBLAGES
WOS类目	Geology ; Paleontology
WOS研究方向	Geology ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396348
推荐引用方式 GB/T 7714	Jain, Sreepat,Alhussein, Mohamad,Ahmed, Mohamed S.,et al. Paleoenvironmental reconstruction of the Middle Jurassic rocks in western India using benthic foraminifera[J],2023,69(3).
APA	Jain, Sreepat,Alhussein, Mohamad,Ahmed, Mohamed S.,&Abdelhady, Ahmed Awad.(2023).Paleoenvironmental reconstruction of the Middle Jurassic rocks in western India using benthic foraminifera.FACIES,69(3).
MLA	Jain, Sreepat,et al."Paleoenvironmental reconstruction of the Middle Jurassic rocks in western India using benthic foraminifera".FACIES 69.3(2023).