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 ?
The cohesive soil horizons showed a significant reduction in void sizes, associated with a predominance of polyconcave vughs (35%-65%; Table 4).
Voids (<20%): mainly channel and chambers, but also vesicles, vughs and complex packing voids.
Pyrite oxidation is more limited in the sapric groundmass because the porosity of the amorphous organic material is low, consisting of non-conducting pores as vughs and vesicles.
In addition to simple, complex, and compound packing voids, some vughs are also present, and floral channels also appear as a minor feature in all samples.
By contrast, the SB G0 and SB G10 slides showed some fissures, but channels, chambers, and vughs were lacking.
It has an aporic c/f distribution pattern, in most parts of which ortho vughs are interconnected.