BENEATH THE SURFACE: ASSESSING DEPTH TO LEAD-ZINC DEPOSITS USING GEOPHYSICAL TECHNIQUES

Abstract

Lead-zinc occurrences in Nigeria, particularly within the Southern Benue Trough, are often linked to saline water intrusion in sedimentary basins or fractured/shear zones in crystalline rocks. This paper provides insights into the geological characteristics and mineralization patterns of lead-zinc deposits in the upper Benue Trough, focusing on well-defined steeply dipping fractures and faults striking in an N-S direction. Through a detailed examination of abandoned mine workings, the study reveals variations in the strike length and thickness of mineralized veins, ranging from a few meters to two meters. By elucidating these geological features, the paper contributes to a better understanding of the distribution and formation mechanisms of lead-zinc deposits in the study area, thereby informing exploration and development strategies for mineral resources in Nigeria.