globalchange  > 气候变化与战略
DOI: 10.1016/j.tecto.2020.228385
论文题名:
A comprehensive lithospheric study of Black Sea using thermal modeling and simultaneous joint 3D inversion of potential field data
作者: Entezar-Saadat V.; Motavalli-Anbaran S.-H.; Jamasb A.; Zeyen H.
刊名: Tectonophysics
ISSN: 00401951
出版年: 2020
卷: 779
语种: 英语
中文关键词: Crustal thickness of Black Sea ; Joint 3D non-linear gravity inversion ; Lithosphere structure ; Sedimentary cover of Black Sea ; Sedimentation heat flow correction ; Thermal modeling
英文关键词: Buildings ; Flow measuring instruments ; Gravitation ; Heat transfer ; Thermoanalysis ; Black sea ; Geological structures ; Lithosphere structure ; Lithosphere-asthenosphere boundary ; Non linear ; Potential field datum ; Sedimentation effects ; Thermal model ; Structural geology ; crustal thickness ; data inversion ; gravity field ; heat flow ; lithospheric structure ; marine sediment ; Moho ; numerical model ; potential field ; sedimentation ; thermal structure ; three-dimensional modeling ; Black Sea ; Calluna vulgaris
英文摘要: We present a comprehensive lithospheric model of the Black Sea comprised of thermal structure, sediment thickness, and depths to Moho and lithosphere-asthenosphere boundary (LAB). The crustal structure (depths to Moho boundary and basement) is first estimated via a simultaneous joint 3D nonlinear inversion of satellite gravity data and the Gzz component of gravity gradiometry tensors. The results are then used for detailed 2D iterative forward modeling of potential field data based on the thermal structure of the lithosphere. In addition to potential field data, heat flow measurements are used for the iterative forward modeling. Eight 2D profiles across the Black Sea were selected to achieve a full coverage of the main geological structures. The average depth to basement is estimated as 10–11 km in the East Black Sea (EBS) basin and 11–12 km in the West Black Sea (WBS) basin. The average depth to basement beneath the ridges is estimated between 2 and 5 km. The modeling results show a mean thickness of 20 km and 21 km for the crust and 150 and 100 km for the lithosphere in the central parts of EBS and WBS, respectively. While the lithosphere is thicker in the EBS than in the WBS, a LAB uplift in the central basins is obvious in the reconstructed model. Also, the calculated surface heat flow is highest at the ridges while the lowest values are found over thick sediments in the central basins. After correcting the calculated heat flow data for the sedimentation effect, the resulting values match the published measurements indicating the reliability of the obtained thermal structure for the Black Sea. © 2020 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170576
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作者单位: Institute of Geophysics, University of Tehran, Tehran, Iran; Research & Development, Dana Energy Company, Tehran, Iran; UMR 4818 GEOPS, Université Paris-Sud, CNRS, Université Paris-Saclay, bât. 504, Orsay, 91405, France

Recommended Citation:
Entezar-Saadat V.,Motavalli-Anbaran S.-H.,Jamasb A.,et al. A comprehensive lithospheric study of Black Sea using thermal modeling and simultaneous joint 3D inversion of potential field data[J]. Tectonophysics,2020-01-01,779
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