Marine Sand Resources Offshore Israel
作者:
Gideon Almagor,
Dan Gill,
Ithamar Perath,
期刊:
Marine Georesources & Geotechnology
(Taylor Available online 2000)
卷期:
Volume 18,
issue 1
页码: 1-42
ISSN:1064-119X
年代: 2000
DOI:10.1080/10641190009353781
出版商: Taylor & Francis Group
关键词: coastal sand balance;Holocene sedimentation;Israel's continental shelf;submarine kurkar
数据来源: Taylor
摘要:
The continental margin of northern Sinai and Israel, up to Haifa Bay, is the northeastern limb of the submarine Nile Delta Cone. It is made up predominantly of clastics from the Nile and its predecessors. The continental shelf and coastal plain of Israel are built of a series of shore-parallel ridges composed of carbonate-cemented quartz sandstone (locally named kurkar), a lithification product of windblown sands that were piled up into dunes during the Pleistocene. The drop in global sea level and regression during the last glacial period exposed the continental shelf to subaerial erosion and created a widespread regional erosional unconformity which is expressed as a prominent seismic reflector at the top of the kurkar layers. The subsequent Holocene transgression abraded much of the westernmost kurkar ridges, drowned their cores, and covered the previous lowstand deposits with marine sands, which were in turn covered by a sequence of sub-Recent clayey silts.
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