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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 ( IF 3.2 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.quascirev.2020.106719
Ahmed Saif Al-Mikhlafi , Fiona D. Hibbert , Lawrence R. Edwards , Hai Cheng

Abstract 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 ka 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.

中文翻译:

也门南部红海卡马兰岛和阿萨利夫半岛海岸线全新世相对海平面变化和海岸演化

摘要 红海南部海岸的地貌特征(化石阶地、凹口和海崖)提供了过去海平面变化的宝贵指标,可以量化全新世中期海平面高位的时间和幅度。我们展示了红海南部波浪切口的效用,并展示了来自 As-Salif 半岛两个地点的 U 系列年代海平面指标,表明全新世中期高位高出当前平均水平约 0.5-1 m海平面 (apmsl) 大约为 5–5.4 ka BP。此外,阿萨利夫半岛和卡姆兰岛两个地点不同海平面指标的海拔高度相似,表明构造相对稳定,盐底辟的影响有限。我们的数据与红海中全新世高位的其他估计值的比较,
更新日期:2021-01-01
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