Gravity and magnetic surveys were conducted in an area about 5000 km² covering udoffshore region of the Qamar basin in the eastern part of Yemen. An attempt is made to udaddress the gravity and magnetic signatures in term of structural features. In addition, udseismic section (NIM-QAM-92-201) compiled by Nimir services limited, 1992 were used to udillustrate subsurface structures in sedimentary sequences. Combined gravity and magnetic udmodeling along section QAM-92-201 by Geomodel 2.5D inversion technique suggest the udthickness of sediment to vary from 3.2 to 5.3 km in the Qamar basin (offshore), and the udbasement rocks are divided into blocks because of existence of several faults extending udfrom basement rocks to sedimentary rocks owing to strong tectonic activities. So the udstudy area may be divided into several major blocks along the Qamar Gulf. It can be udconcluded that the sedimentary processes were affected by basement tectonics as udrevealed by the seismic section.
展开▼
