scholarly journals Geophysical Delineation of Barite-Galena Mineralization Using Coupled Electrical Resistivity (ER) and Induced Polarization (IP) Techniques. A Case Study of Iyamitet, Cross River State, South-South, Nigeria

2021 ◽  
pp. 11-18
Author(s):  
O. J. Airen ◽  
D. A. Babaiwa
Keyword(s):  
Electrical Resistivity ◽  
Joint Inversion ◽  
Induced Polarization ◽  
High Resistivity ◽  
Cross River ◽  
Cross River State ◽  
Geophysical Techniques ◽  
Mineralized Zone ◽  
2D Resistivity

A combined Electrical Resistivity (ER) and Induced Polarization (IP) techniques were carried out at Iyamitet, Cross-River State Nigeria with the aim of mapping the Barite-Galena mineralization zone within the area. Five traverses were established in orthogonal directions with length of 100 m. The traverses were established in grid format for better coverage of the study area and Dipole-Dipole electrode configuration was adopted for the data acquisition for both ER and IP. Res2Dinvx software was employed for the joint inversion of the data and the resulting 2D resistivity and chargeability images of the subsurface were interpreted qualitatively and semi-quantitatively to locate the mineralized zone. The result of the investigation revealed that the resistivity values of the suspected mineralized zones fall between 1023 ohm-m to 377599 ohm-m and the chargeability falls between 232 msec and 727 msec. The depth to the top of some of the mineralized zones is as shallow as 1.25 m and as deep as 19.8 m in other places. The results of the investigation have indicated the presence of the Barite-Galena ore within the area and this manifested as high resistivity and high chargeability zones along the traverses. The result of this investigation highlights the efficiency of combined geophysical techniques in locating mineralized zones in a basement area.

scholarly journals The Role of Non-State Actors in Strengthening the Developmental Capacity of the State: A Case Study of Cross Rivers State, Nigeria

2020 ◽  
Vol 10 (2) ◽  
pp. 153
Author(s):  
Felix Chukwudi Oparah ◽  
Enya Ndem Bassey ◽  
Ohatu Ekoh Ohatu
Keyword(s):  
Skill Acquisition ◽  
Rural Areas ◽  
The State ◽  
Cross River ◽  
Cross River State ◽  
Developmental Capacity ◽  
State Actors ◽  
The Government

This study examined the role of Non State Actors (NSAs) in strengthening the developmental capacity of the state, using a case study of Cross River State, Nigeria. Primary and secondary data on selected constituents of NSAs including Non Governmental Organizations (NGOs), Privately Owned Companies, Banks, Private Hospitals and Private Schools were analyzed using tables and charts. The results revealed that activities of NSAs significantly enhance the developmental capacity of Cross River State especially in the areas of provision of public services, knowledge and skill acquisition, infrastructural development and employment generation. Besides other recommendations, it was recommended that NSAs and the government should perform complementary roles in enhancing developmental capacity and that the establishment of more NSAs in the rural areas should be encouraged through the provision of special funding and other incentives for NSAs that have their offices in the rural areas.

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