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

被引:11
作者
Al-Mikhlafi, Ahmed Saif [1 ]
Hibbert, Fiona D. [2 ]
Edwards, Lawrence R. [3 ]
Cheng, Hai [3 ]
机构
[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; LAST-INTERGLACIAL PERIOD; CORAL-REEF TERRACES; TECTONIC UPLIFT; MARINE NOTCHES; PERACHORA PENINSULA; LATE PLEISTOCENE; TIDAL NOTCHES; ICE VOLUMES; QUATERNARY; SINAI;
D O I
10.1016/j.quascirev.2020.106719
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
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.
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页数:16
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