Characterization of lithological zones of the Isanlu sheet 225, North Central Nigeria, using aerogeophysical datasets

Acta Geophysica

article

Akinsunmade, Akinniyi¹  Nguyen Dinh, Chau¹  Wojas, Anna¹  Tomecka-Suchoń, Sylwia¹ 

[1] Faculty of Geology, AGH University of Science and Technology

关键词: Aerogeophysical data;    Geological structures;    Lithology;    Isanlu sheet 225;    Nigeria;   

DOI  :  10.1007/s11600-020-00411-6

学科分类：地球科学(综合)

来源: Polska Akademia Nauk * Instytut Geofizyki

【 摘 要 】

Gridded aeromagnetic and aeroradiometric datasets of Isanlu sheet 225 were processed and interpreted in order to map the geological structures and characteristic lithology, as well as potential mineral ore zones in the area. Recorded aeromagnetic data were reduced to the magnetic equator before filtering operations which enhanced the magnetic anomalies. Analytic signal map was created, and subsequently a model was generated along a selected profile for better interpretation of the subsurface materials. On the aeroradiometric data were performed both enhancement and statistical operations. The lithological zones were identified. They are metasedimentary rocks, migmatites and igneous rocks occupying varying proportions within the entire area. Some potential radioactive or precious metal ore zones were also localized. A major structure interpreted in the study area trends in the SE–NW direction. Other surface structures were also delineated and general orientation was evaluated. This information may serve as a valuable database for further prospective research and mineral exploration in the region.

【 授权许可】

Unknown