What is core logging?

Core logging is the process of examining and recording detailed information about geological cores that are extracted during drilling operations, typically in the mining, oil and gas, or geotechnical industries. This involves describing the physical characteristics of the core samples, such as rock type, color, grain size, mineral content, and any structures or features present. The data gathered during core logging helps geologists interpret subsurface geology, assess resource potential, and guide further exploration or development activities.