Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.earscirev.2013.03.003 |
Aeolian beach ridges and their significance for climate and sea level: Concept and insight from the Levant coast (East Mediterranean) | |
Mauz, B.1; Hijma, M. P.; Amorosi, A.2; Porat, N.3; Galili, E.4; Bloemendal, J.1 | |
通讯作者 | Mauz, B. |
来源期刊 | EARTH-SCIENCE REVIEWS
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ISSN | 0012-8252 |
EISSN | 1872-6828 |
出版年 | 2013 |
卷号 | 121页码:31-54 |
英文摘要 | Relict beach ridges of aeolian origin and associated soils are often used for inferring relative sea level and climate with contrasting results. Most studies link the aeolian coastal deposits to regressive phases, some to high sea-level stands, and a few to intermediate relative sea-level positions. We interpret the apparent contradictions as indicating the lack of an over-arching concept and the inconsistent usage of sea level-related terms. In this paper we present an integrated morpho-sedimentological concept for a microtidal, mid-latitudinal coast and review existing data from the Levant (East Mediterranean) coast to evaluate the concept and to eliminate nomenclatural confusion. A coastal depositional environment in a semi-arid environment consists of shallow-marine, aeolian and alluvial facies which together form an aeolian beach-ridge complex as a package of strata which respond simultaneously to sea-level change. A transgressive complex forms through reworking or overstepping of the coastal foredune and a regressive complex forms by downstepping. Under transgression the aeolian beach ridge represents the highstand deposit and its adjacent shallow marine sediment is the transgressive deposit. Under regression the complex represents the falling stage and the associated downdip surface marks the lowstand. On the Levant coast we find chronologically well-constrained, offlapping aeolian beach ridges as parts of six downstepping beach ridge complexes formed between similar to 200 ka and 10 ka. The complexes represent the falling stage systems tract (FSST) of a short-lived (5th-order) depositional sequence when the shoreline shifted from a position close to the modern coastline to the shelf or below the shelf edge. Three of these FSSTs and their up dip and down dip super bounding surface together form the 4th order (similar to 100 ka) sequence of the last interglacial/glacial cycle. The absence of transgressive, highstand and lowstand systems tract is explained by the poor preservation potential due to the small sediment budget of the complex. The falling stage complex has a high preservation potential because sediment source area increases while the sand drift potential remains above the local threshold. On the Levant coast, sand delivery to the backshore continued during relative sea-level falls for distances of up to 10 km between dune and coastline which is unprecedented in most modem analogues. The significance of the dune-soil succession for climate is limited because the dunes are governed by relative sea-level change; the vegetation response to changes in precipitation is non-linear and the dune dynamics are characterised by low resilience and hysteresis. (C) 2013 Elsevier B.V. All rights reserved. |
英文关键词 | Aeolian beach ridge Stratigraphic architecture Sea level Late Quaternary Levant |
类型 | Article |
语种 | 英语 |
国家 | England ; Italy ; Israel |
收录类别 | SCI-E |
WOS记录号 | WOS:000319235800003 |
WOS关键词 | BARRIER DUNE CONSTRUCTION ; LATE QUATERNARY ; SEQUENCE STRATIGRAPHY ; LUMINESCENCE CHRONOLOGY ; CONTINENTAL-MARGIN ; LATE HOLOCENE ; SEDIMENT TRANSPORT ; FORCED REGRESSIONS ; MARINE TERRACES ; CARMEL COAST |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/176653 |
作者单位 | 1.Univ Liverpool, Sch Environm Sci, Liverpool L69 7ZT, Merseyside, England; 2.Univ Bologna, Dept Biol Earth & Environm Sci, I-40127 Bologna, Italy; 3.Geol Survey Israel, IL-95501 Jerusalem, Israel; 4.Israel Antiqu Author, IL-30300 Atlit, Israel |
推荐引用方式 GB/T 7714 | Mauz, B.,Hijma, M. P.,Amorosi, A.,et al. Aeolian beach ridges and their significance for climate and sea level: Concept and insight from the Levant coast (East Mediterranean)[J],2013,121:31-54. |
APA | Mauz, B.,Hijma, M. P.,Amorosi, A.,Porat, N.,Galili, E.,&Bloemendal, J..(2013).Aeolian beach ridges and their significance for climate and sea level: Concept and insight from the Levant coast (East Mediterranean).EARTH-SCIENCE REVIEWS,121,31-54. |
MLA | Mauz, B.,et al."Aeolian beach ridges and their significance for climate and sea level: Concept and insight from the Levant coast (East Mediterranean)".EARTH-SCIENCE REVIEWS 121(2013):31-54. |
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