InSAR surface deformation and numeric modeling unravel an active salt diapir in southern Romania

Abstract Salt diapirism is often associated with potential hydrocarbon energy resources, and detecting active diapirs can strongly affect the prospect to discover new gas and oilfields. Here we use InSAR techniques as a proxy to evaluate surface deformation in the Diapiric Fold Zone located in the E...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Vlad Constantin Manea, Iuliana Armaş, Marina Manea, Mihaela Gheorghe
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/318d85a787c4452897cc32d227308c68
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:318d85a787c4452897cc32d227308c68
record_format	dspace
spelling	oai:doaj.org-article:318d85a787c4452897cc32d227308c682021-12-02T14:59:29ZInSAR surface deformation and numeric modeling unravel an active salt diapir in southern Romania10.1038/s41598-021-91517-42045-2322https://doaj.org/article/318d85a787c4452897cc32d227308c682021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91517-4https://doaj.org/toc/2045-2322Abstract Salt diapirism is often associated with potential hydrocarbon energy resources, and detecting active diapirs can strongly affect the prospect to discover new gas and oilfields. Here we use InSAR techniques as a proxy to evaluate surface deformation in the Diapiric Fold Zone located in the East Carpathians Bend. Significant surface uplift (~ 5 mm/year) is identified in a relatively small region not previously known for the presence of an actively rising salt diapir. Using high-resolution two-dimensional thermomechanical numerical simulations of salt diapirs intrusions, we show that that the observed surface deformation can be induced by a relatively small salt diapir (1–2 km in diameter) rising from an initial salt layer located at < 7 km depth. We constrain the salt diapir viscosity by comparing the InSAR surface deformation pattern with results from numerical simulations and our best fitting model is obtained for a salt viscosity of 1 × 1017 Pa s. The best fitting model reveals the presence of a relatively small salt diapir that has not pierced yet the entire sedimentary layer and is located just 1–2 km below the surface.Vlad Constantin ManeaIuliana ArmaşMarina ManeaMihaela GheorgheNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Vlad Constantin Manea Iuliana Armaş Marina Manea Mihaela Gheorghe InSAR surface deformation and numeric modeling unravel an active salt diapir in southern Romania
description	Abstract Salt diapirism is often associated with potential hydrocarbon energy resources, and detecting active diapirs can strongly affect the prospect to discover new gas and oilfields. Here we use InSAR techniques as a proxy to evaluate surface deformation in the Diapiric Fold Zone located in the East Carpathians Bend. Significant surface uplift (~ 5 mm/year) is identified in a relatively small region not previously known for the presence of an actively rising salt diapir. Using high-resolution two-dimensional thermomechanical numerical simulations of salt diapirs intrusions, we show that that the observed surface deformation can be induced by a relatively small salt diapir (1–2 km in diameter) rising from an initial salt layer located at < 7 km depth. We constrain the salt diapir viscosity by comparing the InSAR surface deformation pattern with results from numerical simulations and our best fitting model is obtained for a salt viscosity of 1 × 1017 Pa s. The best fitting model reveals the presence of a relatively small salt diapir that has not pierced yet the entire sedimentary layer and is located just 1–2 km below the surface.
format	article
author	Vlad Constantin Manea Iuliana Armaş Marina Manea Mihaela Gheorghe
author_facet	Vlad Constantin Manea Iuliana Armaş Marina Manea Mihaela Gheorghe
author_sort	Vlad Constantin Manea
title	InSAR surface deformation and numeric modeling unravel an active salt diapir in southern Romania
title_short	InSAR surface deformation and numeric modeling unravel an active salt diapir in southern Romania
title_full	InSAR surface deformation and numeric modeling unravel an active salt diapir in southern Romania
title_fullStr	InSAR surface deformation and numeric modeling unravel an active salt diapir in southern Romania
title_full_unstemmed	InSAR surface deformation and numeric modeling unravel an active salt diapir in southern Romania
title_sort	insar surface deformation and numeric modeling unravel an active salt diapir in southern romania
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/318d85a787c4452897cc32d227308c68
work_keys_str_mv	AT vladconstantinmanea insarsurfacedeformationandnumericmodelingunravelanactivesaltdiapirinsouthernromania AT iulianaarmas insarsurfacedeformationandnumericmodelingunravelanactivesaltdiapirinsouthernromania AT marinamanea insarsurfacedeformationandnumericmodelingunravelanactivesaltdiapirinsouthernromania AT mihaelagheorghe insarsurfacedeformationandnumericmodelingunravelanactivesaltdiapirinsouthernromania
_version_	1718389189411602432

InSAR surface deformation and numeric modeling unravel an active salt diapir in southern Romania

Ejemplares similares