干旱区生态环境知识资源中心(Arid): Paleoecology of the middle Eocene ostracods of Egypt

Arid

DOI	10.1016/j.jafrearsci.2020.103780
	Paleoecology of the middle Eocene ostracods of Egypt
	Elewa, Ashraf M. T.; Abdelhady, Ahmed A.
通讯作者	Abdelhady, Ahmed A.
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2020
卷号	164
英文摘要	Data on one hundred and three ostracod species belonging to forty-one genera from the middle Eocene sediments of Egypt have been subjected to appropriate multivariate data analyses techniques in order to reconstruct the paleoenvironment. The most common ostracod species of the studied regions belong to the genera: Cytherella, Paracosta, Bairdia and Reticulina (these species represent more than 32% of the total number of the studied ostracod species). Cluster analysis based on the neighbour joining clustering method (Jukes-Cantor similarity measure) of eleven rock units and fifty ostracod species suggested the separation of these rock units according to their ages under the control of their geographical distribution within the studied regions. On the other hand, Factor Analysis (based on the varimax rotation technique) of the same data matrix aided to detect four paleoenvironmental factors affected the distribution of the ostracod assemblages. The first factor discloses the turbulence of water; the second factor corresponds to the degree of salinity of water; the third factor signifies the water depth associated with oscillation in the oxygen content; the fourth factor demonstrates the temperature of water in the euphoric zone exposure to water depth. Moreover, ten ostracod biofacies with specific paleoenvironmental conditions were recognized. Outstandingly, it seems prominently that paleoenvironmental changes had shaped the distribution of the middle Eocene ostracods of Egypt rather than origination or extinction.
英文关键词	Ostracods Paleoenvironment Paleoecology Middle Eocene Egypt
类型	Article
语种	英语
国家	Egypt
收录类别	SCI-E
WOS记录号	WOS:000526109500015
WOS关键词	BENTHIC FORAMINIFERA ; NILE-DELTA ; BIOSTRATIGRAPHY ; SINAI ; DESERT ; PALEOBIOGEOGRAPHY ; SUCCESSION ; POLLUTION ; LAGOON ; AREA
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/2XILL650/314843
作者单位	Menia Univ, Fac Sci, Geol Dept, Damaris 61519, Egypt
推荐引用方式 GB/T 7714	Elewa, Ashraf M. T.,Abdelhady, Ahmed A.. Paleoecology of the middle Eocene ostracods of Egypt[J],2020,164.
APA	Elewa, Ashraf M. T.,&Abdelhady, Ahmed A..(2020).Paleoecology of the middle Eocene ostracods of Egypt.JOURNAL OF AFRICAN EARTH SCIENCES,164.
MLA	Elewa, Ashraf M. T.,et al."Paleoecology of the middle Eocene ostracods of Egypt".JOURNAL OF AFRICAN EARTH SCIENCES 164(2020).