کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
8911924 1639049 2018 16 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Seismic geomorphology of submarine channel-belt complexes in the Pliocene of the Levant Basin, offshore central Israel
ترجمه فارسی عنوان
ژئومورفولوژی لرزه ای کمپلکس های کمربند زیردریایی در پیلوئوس حوضه شبه دریایی، مرکزی اسراییل ساحلی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات ژئوشیمی و پترولوژی
چکیده انگلیسی
In this study, analyses of a high-resolution, three-dimensional seismic reflection dataset and well-log data were combined to characterise a distinct Pliocene interval in the Levant Basin offshore central Israel. This succession is characterised by moderate to high-amplitude, discontinuous to continuous seismic reflections between a mass transport deposit above and an undeformed basin series below. The studied interval contains two separate channelised subunits, which predated the salt related deformations. Morphologically, the channels trend in a north to northwest direction, are incised <50 m, are ~50 m to 350 m wide and increase in number from base to top. A vertical variation in channel morphology style and stratigraphic organization is identified. The lower part of each subunit is dominated by coarser grained, narrow V-shaped channels (average width <120 m and low sinuosity, <1.06). In contrast, the upper part of each subunit is predominantly fine-grained and U-shaped with relatively wide channels (average width >230 m and higher sinuosity, >1.1). The mechanisms that control the interplay between sedimentary processes and channel evolution show a cyclic pattern. Due to the cyclic occurrence of different channel types and the estimated age of the studied interval, formation and evolutionary processes of the submarine channels in the study area are likely to be controlled by relative sea level fluctuations and increased Nile River sediment supply, which is associated with rapid uplift of the Ethiopian plateau and increased African Monsoon rainfall during the Pliocene.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Geology - Volume 403, 1 September 2018, Pages 123-138
نویسندگان
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