Gravity survey over jabal hafit - implications for basement configuration of the frontal fold belts of oman mountains

M. Y. Ali, M. Sirat, J. Small

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

Abstract

A gravity survey was carried out in and around Jabal Hafit, south of Al Mn, Abu Dhabi in the United Arab Emirates. Jabal Hafit is a 30 km long and 4.5 km wide asymmetrical, double-plunging, NNW-SSW trending anticline which consists of shallow-marine carbonates of Eocene to Miocene age trending parallel to the Oman Mountains. The area is of tectonic significance because the reactivation of basement faults are believed to control distribution of hydrocarbon traps. Results from the gravity data constrained by outcrop geology, confidential well and seismic data and bedrock density measurements, have been used to determine the subsurface structure of the study area. NNW-SSE trending positive residual gravity anomalies of up to +6 mGal occur on the Jabal Hafit and Al Am anticlines. These positive gravity highs are attributed to basement horsts as the structural style is considered to have resulted from reactivated deep-seated fault blocks. The residual Bouguer anomaly values decline gradually to the east and west of Jabal Hafit as the basement deepens. A large negative gravity anomaly of <-5 mGal is observed east of Jabal Halit and coincides with a syncline which caused thickening of the Upper Cretaceous and Tertiary sequences.

Original languageBritish English
Title of host publicationSociety of Petroleum Engineers - 70th European Association of Geoscientists and Engineers Conference and Exhibition - Incorporating SPE EUROPEC 2008
Pages3757-3761
Number of pages5
StatePublished - 2008
Event70th European Association of Geoscientists and Engineers Conference and Exhibition - Incorporating SPE EUROPEC 2008 - Rome, Italy
Duration: 9 Jun 200812 Jun 2008

Publication series

Name70th European Association of Geoscientists and Engineers Conference and Exhibition 2008: Leveraging Technology. Incorporating SPE EUROPEC 2008
Volume6

Conference

Conference70th European Association of Geoscientists and Engineers Conference and Exhibition - Incorporating SPE EUROPEC 2008
Country/TerritoryItaly
CityRome
Period9/06/0812/06/08

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