Towards understanding the source of brine mineralization in Southeast Nigeria: evidence from high-resolution airborne magnetic and gravity data

‪Stephen Eguba Ekwok ... [et al.]

Ekwok Stephen Eguba (20%)

Akpan Anthony E. (10%)
Achadu Ogiji-Idaga M. (20%)
Thompson Cherish E. (10%)
Eldosouky Ahmed M. (10%)
Abdelrahman Kamal (10%)
Andráš Peter 1953- (20%) UMBFP04 - Katedra životného prostredia

Minerals : international, peer-reviewed, open access journal of natural mineral systems, mineral resources, mining, and mineral processing. Vol. 12, no. 2 (2022), pp. [1-18]. - Basel : Multidisciplinary Digital Publishing Institute, 2021

kvapaliny - liquids

 

magnetizmus - magnetism

 

gravitácia - gravity - gravitation

 

mineralizácia - mineralization

 

English

Switzerland

Investigation into understanding the genesis of brines in southeast Nigeria was carried out utilizing high‐resolution potential field (HRPF) data. This study reveals that igneous intrusions and associated hydrothermal fluids are responsible for brine generation. The obtained result of the analytic signal revealed the locations and spatial distribution of short‐ and long‐wavelength geologic structures associated with igneous intrusions. The low pass filtering, upward continuation, and 2D modelling procedures showed key synclinal structures which coincided well with the location of brine fields. The results showed that salt ponds are common in the neighborhood of igneous intrusions. To validate this finding, a conceptual model describing igneous‐related hydrothermal circulation systems that are driven by convective cells of the hydrothermal fluid and overburden loads was generated. This model fits reasonably well into the overall stratigraphic and geologic framework of the study area.