Dating Quaternary raised coral terraces along the Saudi Arabian Red Sea coast

Manaa, Ammar A., Jones, Brian G., McGregor, Helen V., Zhao, Jian-xin and Price, David M. (2016) Dating Quaternary raised coral terraces along the Saudi Arabian Red Sea coast. Marine Geology, 374 59-72. doi:10.1016/j.margeo.2016.02.002

Author Manaa, Ammar A.
Jones, Brian G.
McGregor, Helen V.
Zhao, Jian-xin
Price, David M.
Title Dating Quaternary raised coral terraces along the Saudi Arabian Red Sea coast
Journal name Marine Geology   Check publisher's open access policy
ISSN 0025-3227
Publication date 2016-04-01
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.margeo.2016.02.002
Open Access Status Not Open Access
Volume 374
Start page 59
End page 72
Total pages 14
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2017
Language eng
Formatted abstract
Late Pleistocene raised coral reef terraces form extensive outcrops up to 5 km wide along the Saudi coast. Porites coral were dated using U/Th while clastic sediment from Jeddah was dated using thermoluminescence. The pooled mean age for the coral samples is 121.5 ± 0.2 ka suggesting MIS 5e, even for the uplifted 16–20 m high terrace in the north at Haql. In Jeddah the MIS 5e back-reef succession is overlain by fluvial sediment that gave a TL age of 66 ± 13 ka. The structure and faunal composition of the coral terraces suggests that they accumulated in broad shallow embayments following the last interglacial transgression. The consistent elevation of these terraces suggests that the central and southern Saudi coast has been tectonically stable for at least the past 125,000 years and the coral reef terraces (at 3.5–5.5 m elevation) are consistent with the MIS 5e sea level high-stand that peaked at 6–9 m above present sea level. The Saudi coastal coral terrace north of Duba shows progressive uplift to 16–20 m near Haql since 108–120 ka as a result of ongoing transform faulting in the Gulf of Aqaba.
Keyword MIS 5e
U-Th dating
Sea level
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

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Sub-type: Article (original research)
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