Gravity and magnetic investigation of Southeast of Al Ain, UAE - Implications for evolution of frontal fold belts of Oman

M. Y. Ali, J. Small

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Gravity and magnetic investigation was carried out in southeast of Al Ain. The aim of the investigation was to determine the structural evolution of the area. The area is of tectonic significance because it can be used as a model for the Late Cretaceous and Tertiary structures which are developed in both the autochthonous and allochthonous rocks which outcrop along the flanks of the area. The study has revealed two major phases of tectonic events in the area. The first, a Late Cretaceous phase in the eastern part which is associated with both high magnetic (> 300 nT) and bouguer gravity (> -58 mGal) anomalies. These effects have resulted from the emplacement of the obduction-related thrust sheets of the Oman Mountains. The second, a Tertiary deformation phase that produces a series of southerly plunging asymmetrical anticlines and synclines trending in a NNW-SSE direction. Low gravity anomaly (<-74 mGal) in the centre of the study area was modelled as a sequence of post-Eocene carbonate sediments with a minimum thickness of 2km. The Tertiary folding and thrusting is formed as a result of regional compressive deformation due to the rejuvenation of the Late Cretaceous thrust faults during post-Middle Eocene.

Original languageBritish English
Title of host publication69th European Association of Geoscientists and Engineers Conference and Exhibition 2007
Subtitle of host publicationSecuring The Future. Incorporating SPE EUROPEC 2007
Pages2074-2078
Number of pages5
StatePublished - 2007
Event69th European Association of Geoscientists and Engineers Conference and Exhibition 2007. Incorporating SPE EUROPEC 2007 - London, United Kingdom
Duration: 11 Jun 200714 Jun 2007

Publication series

Name69th European Association of Geoscientists and Engineers Conference and Exhibition 2007: Securing The Future. Incorporating SPE EUROPEC 2007
Volume4

Conference

Conference69th European Association of Geoscientists and Engineers Conference and Exhibition 2007. Incorporating SPE EUROPEC 2007
Country/TerritoryUnited Kingdom
CityLondon
Period11/06/0714/06/07

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