气候变化领域集成服务门户(CCPortal): Late Maastrichtian-early Danian sea-level changes at Gebel Tawil Shihaq in Central Jordan: Implications of chemostratigraphy and foraminiferal biostratigraphy

CCPortal

DOI	10.1016/j.palaeo.2020.109875
	Late Maastrichtian-early Danian sea-level changes at Gebel Tawil Shihaq in Central Jordan: Implications of chemostratigraphy and foraminiferal biostratigraphy
	Bazeen Y.S.; Farouk S.; El-Balkiemy A.F.; Ahmad F.
发表日期	2020
ISSN	0031-0182
卷号	556
英文摘要	Integrated foraminiferal and geochemical analyses of the upper Maastrichtian-lower Danian succession of the Gebel Tawil Shihaq section in the Central Jordan Plateau has been conducted to interpret the nature of that succession within a sequence stratigraphic context. The studied succession covers the interval of the CF4-P1c planktonic foraminiferal zones. The incorporation of foraminiferal and geochemical proxies led to the recognition of four 3rd order depositional sequences, three in the Maastrichtian (M-Sq1, M-Sq2, and M-Sq3) and one in the Danian (D-Sq1). These depositional sequences are bounded by four sequence boundaries, detected based on abrupt faunal (e.g., zonal interruption, foraminiferal turnover) and geochemical (e.g., dolomitization, Sr/Ca and nearby Ti/Al maxima, Mn and CaCO3 minima) shifts. Based on the paleodepth variation revealed from the foraminiferal analyses and the consistent behavior of the different geochemical proxies, a relative sea-level curve was established and consequently, the systems tracts of each depositional sequence were recognized. The development of the inferred relative sea-level curve reveals the twofold control of both global sea-level changes and regional tectonics. The latter resulted in amalgamation and elimination or modification of some sea-level cycles relative to the previously recognized eustatic schemes. At the Cretaceous/Paleogene (K/Pg) boundary, a highly agitated phosphatized event bed is intercalated and exposes distinctive unique lithological, geochemical, and biostratigraphical characteristics denoting a long-lasting period of non-deposition and erosion commonly interrelated to the tectonic impact of the Syrian Arc Orogeny (SAO). © 2020 Elsevier B.V.
英文关键词	Benthic foraminifera; Danian; Jordan; K/Pg boundary; Maastrichtian; Manganese stratigraphy
语种	英语
scopus关键词	biostratigraphy; chemostratigraphy; Cretaceous-Paleogene boundary; Danian; depositional sequence; geochemistry; Maastrichtian; planktonic foraminifera; sea level change; Jordan; Syrian Arc; Foraminifera
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150401
作者单位	Geology Department, Faculty of Science, Al-Azhar University, PO. Box:11884, Cairo, Egypt; Exploration Department, Egyptian Petroleum Research Institute, Nasr City, Egypt; Earth and Environmental Sciences Department, Hashemite University, Jordan
推荐引用方式 GB/T 7714	Bazeen Y.S.,Farouk S.,El-Balkiemy A.F.,et al. Late Maastrichtian-early Danian sea-level changes at Gebel Tawil Shihaq in Central Jordan: Implications of chemostratigraphy and foraminiferal biostratigraphy[J],2020,556.
APA	Bazeen Y.S.,Farouk S.,El-Balkiemy A.F.,&Ahmad F..(2020).Late Maastrichtian-early Danian sea-level changes at Gebel Tawil Shihaq in Central Jordan: Implications of chemostratigraphy and foraminiferal biostratigraphy.Palaeogeography, Palaeoclimatology, Palaeoecology,556.
MLA	Bazeen Y.S.,et al."Late Maastrichtian-early Danian sea-level changes at Gebel Tawil Shihaq in Central Jordan: Implications of chemostratigraphy and foraminiferal biostratigraphy".Palaeogeography, Palaeoclimatology, Palaeoecology 556(2020).