Crustal structure of Sicily from modelling of gravity and magnetic anomalies

Abstract We aim at modeling the main crustal and thermal interfaces of Sicily (Italy), a key area for understanding the geological complexity at the collisional boundary between the African and European plates. To this end, we analyze the gravity and magnetic fields, integrated with information from...

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Autores principales:	M. Milano, Y. Kelemework, M. La Manna, M. Fedi, D. Montanari, M. Iorio
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/28ef40dccd754d66aba22daa233ebbfc
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spelling	oai:doaj.org-article:28ef40dccd754d66aba22daa233ebbfc2021-12-02T18:51:14ZCrustal structure of Sicily from modelling of gravity and magnetic anomalies10.1038/s41598-020-72849-z2045-2322https://doaj.org/article/28ef40dccd754d66aba22daa233ebbfc2020-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-72849-zhttps://doaj.org/toc/2045-2322Abstract We aim at modeling the main crustal and thermal interfaces of Sicily (Italy), a key area for understanding the geological complexity at the collisional boundary between the African and European plates. To this end, we analyze the gravity and magnetic fields, integrated with information from well logs, geology, heat flow, and seismic data. In order to make the most accurate description of the crustal structure of the area, we modeled with different methodologies the carbonate and crystalline top surfaces, as well as the Moho and the Curie isotherm surface. The reconstruction of the carbonate platform is achieved using a nonlinear 3D method constrained by the available seismic and borehole data. The crystalline top, the Curie, and the Moho are instead estimated by spectral analysis of both gravity and magnetic data. The results show a complex carbonate basement and a deep crystalline crust in central Sicily, with a prominent uplift beneath the Hyblean Plateau. Maps of the Moho and the Curie isotherm surface define a variable thermal and structural setting of Sicily, with very thin crust in the southern and eastern sectors, where high heat flow is found, and deep and cold crust below the Caltanissetta Basin.M. MilanoY. KelemeworkM. La MannaM. FediD. MontanariM. IorioNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-18 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q M. Milano Y. Kelemework M. La Manna M. Fedi D. Montanari M. Iorio Crustal structure of Sicily from modelling of gravity and magnetic anomalies
description	Abstract We aim at modeling the main crustal and thermal interfaces of Sicily (Italy), a key area for understanding the geological complexity at the collisional boundary between the African and European plates. To this end, we analyze the gravity and magnetic fields, integrated with information from well logs, geology, heat flow, and seismic data. In order to make the most accurate description of the crustal structure of the area, we modeled with different methodologies the carbonate and crystalline top surfaces, as well as the Moho and the Curie isotherm surface. The reconstruction of the carbonate platform is achieved using a nonlinear 3D method constrained by the available seismic and borehole data. The crystalline top, the Curie, and the Moho are instead estimated by spectral analysis of both gravity and magnetic data. The results show a complex carbonate basement and a deep crystalline crust in central Sicily, with a prominent uplift beneath the Hyblean Plateau. Maps of the Moho and the Curie isotherm surface define a variable thermal and structural setting of Sicily, with very thin crust in the southern and eastern sectors, where high heat flow is found, and deep and cold crust below the Caltanissetta Basin.
format	article
author	M. Milano Y. Kelemework M. La Manna M. Fedi D. Montanari M. Iorio
author_facet	M. Milano Y. Kelemework M. La Manna M. Fedi D. Montanari M. Iorio
author_sort	M. Milano
title	Crustal structure of Sicily from modelling of gravity and magnetic anomalies
title_short	Crustal structure of Sicily from modelling of gravity and magnetic anomalies
title_full	Crustal structure of Sicily from modelling of gravity and magnetic anomalies
title_fullStr	Crustal structure of Sicily from modelling of gravity and magnetic anomalies
title_full_unstemmed	Crustal structure of Sicily from modelling of gravity and magnetic anomalies
title_sort	crustal structure of sicily from modelling of gravity and magnetic anomalies
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/28ef40dccd754d66aba22daa233ebbfc
work_keys_str_mv	AT mmilano crustalstructureofsicilyfrommodellingofgravityandmagneticanomalies AT ykelemework crustalstructureofsicilyfrommodellingofgravityandmagneticanomalies AT mlamanna crustalstructureofsicilyfrommodellingofgravityandmagneticanomalies AT mfedi crustalstructureofsicilyfrommodellingofgravityandmagneticanomalies AT dmontanari crustalstructureofsicilyfrommodellingofgravityandmagneticanomalies AT miorio crustalstructureofsicilyfrommodellingofgravityandmagneticanomalies
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Crustal structure of Sicily from modelling of gravity and magnetic anomalies

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