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DOI | 10.1016/j.jafrearsci.2016.11.028 |
Sequence stratigraphy of the Maastrichtian-Paleocene succession at the Dakhla Oasis, Western Desert, Egypt | |
Hewaidy, Abdel Galil A.1; Farouk, Sherif2; Bazeen, Youssef S.1 | |
通讯作者 | Hewaidy, Abdel Galil A. |
来源期刊 | JOURNAL OF AFRICAN EARTH SCIENCES
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ISSN | 1464-343X |
EISSN | 1879-1956 |
出版年 | 2017 |
卷号 | 136页码:22-43 |
英文摘要 | The Maastrichtian-Paleocene succession at the Dakhla Oasis is marked by the presence of a typical Nile Valley Facies represented by the Dakhla and Tarawan formations in Edmonstone and Qur El Malik sections in the central and western parts of the oasis, while a mixed Nile Valley and Garra Al-Arbain facies represented by Dakhla, Kurkur and Tarawan formations in Teneida section in the eastern part of the oasis adjacent to the Abu Tartur Plateau. These sections were examined for their foraminiferal contents, lithologic characters and stratigraphic boundaries. The distribution of foraminifera in the studied sections is variable and inconstant, as the planktonics are concentrated only at certain levels, which may be considered as a time intervals of transgression and maximum flooding surfaces. Eight planktonic biozones are distinguished in this work; of theses two are of Maastrichtain-age and six are of Paleocene age. Eight 3rd order depositional sequences are recognized in the studied MaastrichtianPaleocene succession based on the time stratigraphic boundaries released from the planktonic foraminifera and sea level changes which are released from the paleoecologic interpretations. The distinguished sequences are subdivided into their systems tracts based on the paleobathymetric interpretations of P/B% and benthic biofacies analysis. These sequences are bounded by eight sequence boundaries (SB A - SB H) represented by unconformity surfaces and depositional hiatuses. The correlation of the sequence boundaries of the established depositional sequences with the eustatic sea level curve, suggesting that these depositional sequences were resulted from the interplay of eustatic sea-level changes and local tectonic activities. (C) 2016 Elsevier Ltd. All rights reserved. |
英文关键词 | Maastrichtian-Paleocene Foraminifera Biostratigraphy Paleopathymetry Sequence stratigraphy Dakhla Oasis Western Desert Egypt |
类型 | Article |
语种 | 英语 |
国家 | Egypt |
收录类别 | SCI-E |
WOS记录号 | WOS:000418219400004 |
WOS关键词 | LATEST DANIAN EVENT ; NORTHWESTERN TUNISIA ; SEA-LEVEL ; FORAMINIFERA ; PALEOECOLOGY ; MARGIN ; EXTINCTION ; ATLANTIC ; RECORD |
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/2XILL650/199963 |
作者单位 | 1.Al Azhar Univ, Geol Dept, Fac Sci, Cairo, Egypt; 2.Egyptian Petr Res Inst, Explorat Dept, Cairo, Egypt |
推荐引用方式 GB/T 7714 | Hewaidy, Abdel Galil A.,Farouk, Sherif,Bazeen, Youssef S.. Sequence stratigraphy of the Maastrichtian-Paleocene succession at the Dakhla Oasis, Western Desert, Egypt[J],2017,136:22-43. |
APA | Hewaidy, Abdel Galil A.,Farouk, Sherif,&Bazeen, Youssef S..(2017).Sequence stratigraphy of the Maastrichtian-Paleocene succession at the Dakhla Oasis, Western Desert, Egypt.JOURNAL OF AFRICAN EARTH SCIENCES,136,22-43. |
MLA | Hewaidy, Abdel Galil A.,et al."Sequence stratigraphy of the Maastrichtian-Paleocene succession at the Dakhla Oasis, Western Desert, Egypt".JOURNAL OF AFRICAN EARTH SCIENCES 136(2017):22-43. |
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