Interpretation of high resolution aeromagnetic data over southern Benue Trough, southeastern Nigeria

Mapping magnetic lineaments and subsurface basement beneath parts of Lower Benue Trough (LBT), Nigeria: Insights from integrating gravity, magnetic and geologic data

“…As it can be seen from the RTP map, the zone H4, corresponds to the Precambrian basement rocks. The zones H3 and H6 correlated very well with the intrusions in the Aghila Hills (Ofoegbu and Onuoha 1991) and Workum Hills (Ofoegbu and Onuoha 1991;Oha et al 2016), respectively. Zone H5 correlates with Eze-Aku shale injected by intrusive rocks.…”

“…Number of published magnetic data (Anudu et al 2014;Oha et al 2016) have studied the basement structures beneath parts of the Lower Benue Trough (LBT). Anudu et al (2014) and Oha et al (2016) delineated five geological lineaments trending NE-SW, NW-SE, ESE-WNW, ENE-WSW and N-S.…”

“…Number of published magnetic data (Anudu et al 2014;Oha et al 2016) have studied the basement structures beneath parts of the Lower Benue Trough (LBT). Anudu et al (2014) and Oha et al (2016) delineated five geological lineaments trending NE-SW, NW-SE, ESE-WNW, ENE-WSW and N-S. In this paper, we attempted revising the concealing basement structures beneath parts of the LBT using the high-resolution aeromagnetic data and interpreted in terms of the geological history of the region.…”

Eco-hydrology and the effects on the national economy: case of the eastern region of Abakaliki Anticlinorium, Southeastern Nigeria

“…It comprises a municipal around the downstream with population greater than 277,000 people (National Bureau of Statistics, NBS 2011). The region is underlain mainly by ammonite-rich blue-black shales (Ojoh 1992) that package ore minerals in some places (Umeji 2000;Obiora and Umeji 2004;Oha et al 2016). Weathering affected the bedrocks in many parts via natural and anthropogenic processes and hence formed soil that generally supported food crop production.…”

Crustal structure of southern Benue Trough, Nigeria from 3D inversion of gravity data

“…The magmatic activity in the Benue Trough predated its tectonic evolution (Maluski et al, 1995). The volcanic intrusions are interpreted in the region from gravity and magnetic data and are distributed beyond surface exposure which is believed to restrict the economic development of some parts of the region (Adighije, 1981;Ajayi and Ajakaiye, 1981;1986;Ofoegbu, 1984;Fairhead and Okereke, 1988;Benkhelil, 1989;Anudu et al, 2014;Oha et al, 2016). The Adamawa and Biu plateaus as shown ( Figure 1) are the continental part of the alkaline Cameroon volcanic line, as it has a spatial link with Benue Trough (Maluski et al, 1995;Tokam et al, 2010).…”