Exploration logging is the process of wireline logging, geophysical logging, geotechnical logging or geological logging of a drill hole, its core, or its rock cuttings for petrophysics or petrology. The practice is usually used in the mining, mineral exploration or oil and natural gas sectors.[1]
Note that logging in this context does not refer to logging trees.
Original source: https://en.wikipedia.org/wiki/Exploration logging.
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