Holocene relative sea-level changes and coastal evolution along the coastlines of Kamaran Island and As-Salif Peninsula, Yemen, southern Red Sea

QUATERNARY SCIENCE REVIEWS

卷:252

Article

Al-Mikhlafi, Ahmed Saif¹  Hibbert, Fiona D.²  Edwards, Lawrence R.³  Cheng, Hai³ 

[1] Sanaa Univ, Dept Earth & Environm Sci, Sanaa, Yemen

[2] Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 2601, Australia

[3] Univ Minnesota, Dept Earth Sci, Minneapolis, MN 55455 USA

关键词: Red sea;    Mid-holocene sea level;    Coastal geomorphology;    Fossil corals;    Wave-cut notches;    U-series dating;   

DOI  :  10.1016/j.quascirev.2020.106719

来源: Elsevier

【 摘 要 】

Geomorphic features (fossil terraces, notches and sea cliffs) from the southern Red Sea coasts provide valuable indicators of past sea-level change that enable the quantification of both the timing and magnitude of the mid-Holocene sea-level highstand. We demonstrate the utility of wave-cut notches in the southern Red Sea, and present U-series dated sea-level indicators from two locations on the As-Salif Peninsula that suggest a mid-Holocene highstand of -0.5-1 m above present mean sea level (apmsl) at about 5-5.4 Ica BP. In addition, the similarity of the elevations of the different sea-level indicators at the two locations in As-Salif Peninsula and Kamran Island suggest relative tectonic stability, with limited influence of salt diapirism. Comparison of our data to other estimates of the Red Sea mid-Holocene highstand, and glacio-isostatic predictions suggest that water loading (and deformational response) is the primary factor in the spatial and temporal variability the mid-Holocene highstand, with some possible localized tectonic and neotectonic overprinting. (C) 2020 Elsevier Ltd. All rights reserved.

【 授权许可】

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