TY  - EJOU
AU  - 
T1  - Improving the Geological Understanding of the Niger Delta Basin of Nigeria Using Airborne Gravity Data
T2  - International Journal of Geography and Geology

PY  - 2016
VL  - 5
IS  - 5
SN  - 2305-7041

AB  - Airborne gravity anomaly over parts of Niger delta basin of Nigeria has been interpreted qualitatively and quantitatively. The residual anomaly was obtained from the observed field data through a second order polynomial method and then enhanced by a filtering process. The qualitative interpretation of the gridded data reveals NS, EW and NE-SW trending subsurface structures. The inverse and forward modeling results show spherical and dyke-like anomaly structures at depths of between 1,090 m to 3,538 m, while the density contrast of formations identifies areas of  possible hydrocarbon occupation. The Euler deconvolution windowed solutions reveal depth to anomalous sources of between 2,000 m to 9,300 m for structural index of one, and depths of between 3,200 m to 10,600 m for structural index of two. The source parameter imaging reveals depth ranges of between 1,700 m to 10,600 m. The work reveals that the maximum depth to basement in the study area is 10,600 m.
KW  - Airborne gravity data
KW  - Anomalous bodies
KW  - Niger delta
KW  - Inverse and forward modeling
KW  - Euler deconvolution
KW  - Source parameter imaging
KW  - Density contrast
KW  - Basement
KW  - stratigraphy
KW  - residual anomaly
DO  - 10.18488/journal.10/2016.5.5/10.5.97.103