干旱区生态环境知识资源中心(Arid): Palynomorph biostratigraphy, palynofacies, thermal maturity and paleoenvironmental interpretation of the Bajocian-Aptian succession in the OBA D-8 Well, Matruh Basin, Egypt

Arid

DOI	10.1016/j.jafrearsci.2021.104157
	Palynomorph biostratigraphy, palynofacies, thermal maturity and paleoenvironmental interpretation of the Bajocian-Aptian succession in the OBA D-8 Well, Matruh Basin, Egypt
	Raafat, Aya; Tahoun, Sameh S.; Ela, Nabil M. Aboul
通讯作者	Tahoun, SS (corresponding author), Cairo Univ, Fac Sci, Geol Dept, POB 12613, Giza, Egypt.
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2021
卷号	177
英文摘要	A palynological study of 35 cutting samples from the Middle Jurassic-Lower Cretaceous section encountered in the OBA D-8 Well in the north Western Desert of Egypt yielded palynomorphs and particulate organic matter used to interpret the biostratigraphy, palynofacies, paleoenvironment, thermal maturation, and hydrocarbon potential of the Matruh Basin. The stratigraphically significant dinoflagellate cyst and sporomorph taxa recovered, which include Murospora florida, Aequitriradites spinulosus, Pilosisporites trichopapillosus, Callialasporites trilobatus, Tenua anaphrissa, Muderongia simplex, Systematophora sp., Gonyaulacysta jurassica, Korystocysta gochtii, Pareodinia ceratophora, and Dissiliodinium sp., permit an age assignment of the studied section as Bajocian to Aptian. Seven formal dinoflagellate cyst zones and four formal sporomorph zones are proposed for this time interval, in addition to differentiating four palynofacies assemblages and using the Rock-Eval Pyrolysis method to visually and geochemically evaluate the source rock potential. The 0.45-2.82 wt% TOC values of the studied samples indicate fair to good source rocks. An inner neritic depositional environment due to relatively high sea level is deduced for the Khatatba and Masajid formations using palynological proxies, as reflected in the lower percentages of sporomorphs relative to dinoflagellate cysts. During the Lower Cretaceous, a predominance of terrestrial sporomorphs in the Alam-El Bueib Formation suggests the advance of a fluvio-deltaic environment, possibly related to a significant sea level fall and regressive phase.
英文关键词	Palynostratigraphy Palynofacies Paleoenvironments Egypt Sea level changes Source rock potential
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000635982500014
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/2XILL650/350638
作者单位	[Raafat, Aya; Tahoun, Sameh S.; Ela, Nabil M. Aboul] Cairo Univ, Fac Sci, Geol Dept, POB 12613, Giza, Egypt
推荐引用方式 GB/T 7714	Raafat, Aya,Tahoun, Sameh S.,Ela, Nabil M. Aboul. Palynomorph biostratigraphy, palynofacies, thermal maturity and paleoenvironmental interpretation of the Bajocian-Aptian succession in the OBA D-8 Well, Matruh Basin, Egypt[J],2021,177.
APA	Raafat, Aya,Tahoun, Sameh S.,&Ela, Nabil M. Aboul.(2021).Palynomorph biostratigraphy, palynofacies, thermal maturity and paleoenvironmental interpretation of the Bajocian-Aptian succession in the OBA D-8 Well, Matruh Basin, Egypt.JOURNAL OF AFRICAN EARTH SCIENCES,177.
MLA	Raafat, Aya,et al."Palynomorph biostratigraphy, palynofacies, thermal maturity and paleoenvironmental interpretation of the Bajocian-Aptian succession in the OBA D-8 Well, Matruh Basin, Egypt".JOURNAL OF AFRICAN EARTH SCIENCES 177(2021).