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Geosciences 2018, 8(6), 200; https://doi.org/10.3390/geosciences8060200

Moho Depth and Crustal Architecture Beneath the Levant Basin from Global Gravity Field Model

1
Geomatics Research & Development s.r.l., c/o ComoNExT, Via Cavour 2, 22074 Lomazzo (CO), Italy
2
Department of Civil and Environmental Engineering (DICA), Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano (MI), Italy
3
Istituto Nazionale di Geofisica e Vulcanologia, sezione di Pisa, Via U. della Faggiola 32, 56126 Pisa (PI), Italy
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 17 April 2018 / Revised: 25 May 2018 / Accepted: 1 June 2018 / Published: 2 June 2018
(This article belongs to the Special Issue Numerical Methods of Geophysical Fields Inversion)
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Abstract

The study of the discontinuity between the Earth crust and upper mantle, the so-called Moho, and of the lithospheric architecture in general, has several important applications in exploration geophysics. For instance, it is used to facilitate the inversion of seismic-related data, in order to obtain important information on the sedimentary layers or to study the Earth’s heat flux. In this paper, the Levant crustal structure is being investigated starting from the inversion of gravity disturbances coming from a global geopotential field model based on ESA GOCE satellite mission integrated with seismic derived information. In the considered area, which is of particular interest because of its richness from the resources point of view, the deep crustal structure is still a matter of study due to the presence of a thick sequence of sedimentary layers, deposited within geological eras by the Nile River. Within the current work, the shape of the Oceanic domain in correspondence to the Herodotus Basin and the Cyprus Arc has been clearly defined. Moreover the nature of the Levantine Basin and of the Eratosthenes crust has been investigated by a set of ad hoc tests, finding the presence of continental crust. Finally, the Moho depth and the crustal density distribution have been retrieved. Several localized anomalies, in the Cyprus area, have been identified and modelled too, thus confirming the presence of heavy material, with a thickness up to 10 km, in the sedimentary layer and shallower part of the crust. View Full-Text
Keywords: gravity inversion; Levant crustal structure; Moho gravity inversion; Levant crustal structure; Moho
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Sampietro, D.; Mansi, A.H.; Capponi, M. Moho Depth and Crustal Architecture Beneath the Levant Basin from Global Gravity Field Model. Geosciences 2018, 8, 200.

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