Volume 1, Issue 5 - March 2026
Two methods have been employed to determine the variation of Crustal thickness in the Northwestern parts of Niger Delta. The first was the Empirical relations which revealed an average Crustal thickness ranging from 34.97 to 44.5km to reflect lateral variations across the area. The contour map of the average empirical relations shows higher crustal depth (40.5km – 45.5km) in the South and decreases at 0.5km interval to relatively lower values (31.5km-37.5km) in the Northern part. Spectrum analysis further resolved multiple subsurface layers, revealing Basement depth value from 3.07 to 5.18km, Conrad discontinuities range within 7.95-11.85km, and Mohorovicic depth that varies between 25.48 and 43.79km. Bouguer anomalies recorded range from -37.9 to -4.3mGal with Northern values between -22.7 and – 4.3mGal, and Southern values -37.9 to -22.7mGal, reflecting variations in sediment loading and crustal configuration.
Empirical relation, Mohorovicic, Bouguer anomaly, Spectral analysis
Adedokun I. O., "The use of aerogravity data interpretation to determine the variations of crustal thickness in northwestern parts of Niger delta, Nigeria", Cosmo Research & Science International Journal, vol. Jul-25, no. 1, pp. 85-96, 2026.
Adedokun I. O. (2026). The use of aerogravity data interpretation to determine the variations of crustal thickness in northwestern parts of Niger delta, Nigeria. Cosmo Research & Science International Journal, Jul-25(1), 85-96.
Adedokun I. O.. "The use of aerogravity data interpretation to determine the variations of crustal thickness in northwestern parts of Niger delta, Nigeria." Cosmo Research & Science International Journal, vol. Jul-25, no. 1, 2026, pp. 85-96.
@article{CRSIJ26000094,
author = {Adedokun I. O.},
title = {The use of aerogravity data interpretation to determine the variations of crustal thickness in northwestern parts of Niger delta, Nigeria},
journal = {Cosmo Research and Science International Journal},
year = {2025},
volume = {1},
number = {5},
pages = {85-96},
issn = {3108-1584},
url = {https://cosmorsij.com/published/CRSIJ26000094.pdf},
abstract = {Two methods have been employed to determine the variation of Crustal thickness in the Northwestern parts of Niger Delta. The first was the Empirical relations which revealed an average Crustal thickness ranging from 34.97 to 44.5km to reflect lateral variations across the area. The contour map of the average empirical relations shows higher crustal depth (40.5km – 45.5km) in the South and decreases at 0.5km interval to relatively lower values (31.5km-37.5km) in the Northern part. Spectrum analysis further resolved multiple subsurface layers, revealing Basement depth value from 3.07 to 5.18km, Conrad discontinuities range within 7.95-11.85km, and Mohorovicic depth that varies between 25.48 and 43.79km. Bouguer anomalies recorded range from -37.9 to -4.3mGal with Northern values between -22.7 and – 4.3mGal, and Southern values -37.9 to -22.7mGal, reflecting variations in sediment loading and crustal configuration.},
keywords = {Empirical relation, Mohorovicic, Bouguer anomaly, Spectral analysis},
month = {March}
}