DOI: 10.1016/j.quascirev.2018.04.031
Scopus记录号: 2-s2.0-85047161840
论文题名: Last interglacial sea levels and regional tectonics from fossil coral reefs in the northeast Gulf of Aqaba
作者: Bar N. ; Agnon A. ; Yehudai M. ; Lazar B. ; Shaked Y. ; Stein M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 191 起始页码: 41
结束页码: 56
语种: 英语
Scopus关键词: Binary alloys
; Calcite
; Carbonate minerals
; Glacial geology
; Recrystallization (metallurgy)
; Reefs
; Tectonics
; Thorium alloys
; Uranium alloys
; Fossil coral reefs
; Fringing reefs
; Gulf of aqaba
; Last interglacial
; Late quaternary
; Regional tectonics
; Relative sea-level changes
; Tectonic uplift
; Sea level
; Anthozoa
英文摘要: Elevated reef terraces in the northeast Gulf of Aqaba (GOA) constrain the history of tectonic uplift and local relative sea level changes during the last interglacial period. These relative sea level changes were inferred from measured elevations coupled with U-Th ages of aragonite precipitation and recrystallization to calcite. All studied reef terraces were formed, and the corals comprising them were recrystallized from aragonite to calcite, when sea-level was at or close to its stable MIS5e elevation a few meters above the modern GOA level. The terraces comprise fringing reefs, some with clear reef structure consisting of a reef flat and a shallow back lagoon accurately marking sea levels at low tide. Terrace R3 probably formed at the earlier stage of MIS5e at ∼130–132 ka and recrystallized to calcite at 124 ± 8 ka. Terrace R2, comprising a wide and developed reef flat, formed during the stable sea-level of peak MIS5e at ∼129–121 ka and was recrystallized to calcite at 104 ± 6 ka. Terrace R1 formed during a short still-stand at 117 ± 3 ka. The recrystallization age of Terrace R2 implies that at around 104 ± 6 ka (MIS5c) sea-level was close to its MIS5e elevation. The elevation and ages of the reef flats indicate a slow average uplift, 0.13 ± 0.05 m/kyr, similar to rates inferred for other last interglacial reef terraces along GOA and the Red Sea. This suggests an overall long-term slow uplift of the Arabian lithosphere at the flanks of the Dead Sea Transform during the late Quaternary. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112173
Appears in Collections: 气候减缓与适应
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作者单位: Institute of Earth Sciences, The Hebrew University, Givat Ram, Jerusalem, 91904, Israel; Geological Survey of Israel, 30 Malkhe Israel St., Jerusalem, 95501, Israel; The Interuniversity Institute of Eilat (IUI), Eilat, Israel
Recommended Citation:
Bar N.,Agnon A.,Yehudai M.,et al. Last interglacial sea levels and regional tectonics from fossil coral reefs in the northeast Gulf of Aqaba[J]. Quaternary Science Reviews,2018-01-01,191