TY - JOUR
T1 - Delineating structural features of North Cameroon using the EIGEN6C4 high-resolution global gravitational model
AU - Ghomsi, Franck Eitel Kemgang
AU - Pham, Luan Thanh
AU - Steffen, Rebekka
AU - Ribeiro-Filho, Nelson
AU - Tenzer, Robert
N1 - Funding Information:
We thank the editor Ian Somerville and the reviewers Yunus Levent Ekinci and Chris Green for their valuable comments that have greatly improved the manuscript. This study was supported by authors' income sources.
Publisher Copyright:
© 2022 John Wiley & Sons Ltd.
PY - 2022/10
Y1 - 2022/10
N2 - The Cretaceous basins of the West and Central African Rift System (WCARS) are characterized by sinistral strike–slip movements observed between the Benue and Arabian–Nubian microplates. These basins share a similar basin-filling structure, history, and tectonic processes. They have attracted a significant interest in the study of their geodynamics and subsurface structure through geophysical exploration methods. Nevertheless, North Cameroon located in this microplate confluence has not yet been investigated in terms of identifying geological structures, such as lineaments and faults. To contribute to a better understanding of the northern Cameroon structural framework and its tectonic context, we investigate the lineaments in northern Cameroon by using the EIGEN-6C4 gravitational model and a variety of recent processing techniques (Tilt derivative [TDR], Theta Map [TM], Horizontal tilt angle [TDX], and Edge Detector [ED]). Our results show that the lineaments are trending in ENE–WSW, NW–SE, NE–SW, and WNW–ESE directions. These directions are consistent with the Cretaceous Garoua Rift and granitoids of the Cameroon-Chad line. The presented result clearly delineates continuous architectonic features of the structural edges of the Saharan Metacraton, the Cretaceous Garoua Rift, the Bibemi-Léré granitoids, and the Adamawa faults.
AB - The Cretaceous basins of the West and Central African Rift System (WCARS) are characterized by sinistral strike–slip movements observed between the Benue and Arabian–Nubian microplates. These basins share a similar basin-filling structure, history, and tectonic processes. They have attracted a significant interest in the study of their geodynamics and subsurface structure through geophysical exploration methods. Nevertheless, North Cameroon located in this microplate confluence has not yet been investigated in terms of identifying geological structures, such as lineaments and faults. To contribute to a better understanding of the northern Cameroon structural framework and its tectonic context, we investigate the lineaments in northern Cameroon by using the EIGEN-6C4 gravitational model and a variety of recent processing techniques (Tilt derivative [TDR], Theta Map [TM], Horizontal tilt angle [TDX], and Edge Detector [ED]). Our results show that the lineaments are trending in ENE–WSW, NW–SE, NE–SW, and WNW–ESE directions. These directions are consistent with the Cretaceous Garoua Rift and granitoids of the Cameroon-Chad line. The presented result clearly delineates continuous architectonic features of the structural edges of the Saharan Metacraton, the Cretaceous Garoua Rift, the Bibemi-Léré granitoids, and the Adamawa faults.
KW - Cameroon-Chad
KW - edge detection
KW - gravity
KW - Northern Cameroon
KW - tilt depth estimate
UR - http://www.scopus.com/inward/record.url?scp=85133338414&partnerID=8YFLogxK
U2 - 10.1002/gj.4544
DO - 10.1002/gj.4544
M3 - Journal article
AN - SCOPUS:85133338414
SN - 0072-1050
VL - 57
SP - 4285
EP - 4299
JO - Geological Journal
JF - Geological Journal
IS - 10
ER -