globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2017.01.008
论文题名:
Last interglacial sea level high-stand deduced from well-preserved abrasive notches exposed on the Galilee coast of northern Israel
作者: Sisma-Ventura G.; Sivan D.; Shtienberg G.; Bialik O.M.; Filin S.; Greenbaum N.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
卷: 470
起始页码: 1
结束页码: 10
语种: 英语
英文关键词: Abrasive notches ; Galilee coast ; High-stand ; Israel ; MIS5e ; Sea-level
英文摘要: This study investigates the morphometry and structure of abrasive notches exposed along the tectonically-stable, micro-tidal Galilee coast, Israel, south-eastern Mediterranean, since they can serve as past sea-level indicators. The characteristics of the notches, height (H), vertex (D) – distance of maximum retreat point from cliff face, height of retreat point from the floor and roof (HF and HR, respectively), etc., were surveyed using LIDAR and a digital laser rangefinder, and elevations were measured using DGPS. Rock resistance was measured by Schmidt hammer tests, which show that the most developed and best preserved notches were formed within the more resistant host rocks of the Cenomanian chalk and the Pleistocene aeolianite sandstone. The elevations of the abrasive floors of the exposed notches indicated a sea level slightly higher than at present at the beginning of MIS5e, with an upper limit between + 0.5 and + 0.75 m. The morphometry of the MIS5e notches, which are larger than modern notches in the study area, suggests mechanical erosion by broken waves, where an energetic wave-dominant sea batters a sheltered coastal cliff. Two sub-units of MIS5e (the Yasaf Mb.) were deposited within the notches: (a) a conglomerate containing the diagnostic fossil Strombus bubonius which was found on the notch floor, and (b) a younger bioclastic sandstone sub-unit which fills and covers parts of the notches. These unique field relationships link the formation of the notches to the beginning of MIS5e, indicating an erosive phase which parallels large-scale MIS5e sea level evidence, suggesting relatively long stand-stills at an elevation of about + 1 m. The early MIS5e erosive phase was followed by a depositional phase during the later stage of MIS5e. © 2017
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67929
Appears in Collections:过去全球变化的重建

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作者单位: Department of Maritime Civilizations, Leon H. Charney School of Marine Studies, The Leon Recanati Institute for Maritime Studies (RIMS), University of Haifa, Mt. Carmel, Haifa, Israel; Georg-August-Universität, Geowissenschaftliches Zentrum, Abteilung Isotopengeologie, Goldschmidtstraße 1, Göttingen, Germany; Dr. Moses Strauss Department of Marine Geosciences, Leon H. Charney School of Marine Sciences, University of Haifa, Mt. Carmel, Haifa, Israel; Mapping and Geo-Information Engineering, Technion – Institute of Technology, Haifa, Israel; Department of Geography and Environmental Studies, University of Haifa, Mt. Carmel, Haifa, Israel; Department of Natural Resources and Environmental Management, University of Haifa, Mt. Carmel, Haifa, Israel

Recommended Citation:
Sisma-Ventura G.,Sivan D.,Shtienberg G.,et al. Last interglacial sea level high-stand deduced from well-preserved abrasive notches exposed on the Galilee coast of northern Israel[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01,470
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