vug

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vug

[vəg]
(petrology)
A small cavity in a vein or rock usually lined with minerals differing in composition from those of the enclosing rock. Also known as bughole.

vug

A pit-like natural cavity in stone, usually between a small fraction of an inch and a few inches in diameter; may be lined with crystals or layers of mineral materials; most common in dolomite, limestone, and marble.
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References in periodicals archive ?
According to Buru, the quality of the wireline logs is excellent, and the uppermost 15 metres of the reservoir zone is interpreted from logs to be oil saturated and has vugular development and oil bleeding from cores.
4 meters) and cores recovered from this point to the existing drill depth have displayed well developed vugular porosity with significant mud gas shows and oil bleeding from cores.
As per the update : Victory 1 As foreshadowed, the logs are difficult to interpret however show the presence of the significant lost circulation zones with potential cavernous or vugular porosity below a drill depth of 1,945 metres.