wall-rock alteration

wall-rock alteration

[′wȯl ¦räk ‚ȯl·tə′rā·shən]
(geology)
Alteration of wall rock adjacent to hydrothermal veins by the fluid responsible for formation of the mineral deposit.
References in periodicals archive ?
(1988) Epithermal gold-silver mineralization, wall-rock alteration, and geochemical evolution of hydrothermal fluids in the ash-flow tuff at Round Mountain, Nevada..
Dill, H.: 1983, Plutonic mobilization, sodium metasomatism, propylitic wall-rock alteration and element partitioning from Hohensteinweg occurrence (Northeast Bavaria, F.R.G.), 1, 139-166.
It also occurs as a minor component of wall-rock alteration of mafic rocks, and replacing biotite in the outer zone of alteration associated with vein deposits (Lindgren and Ransome, 1906; Thompson et al., 1985; Thompson, 1992).
Roscoelite occurs mostly as a product of wall-rock alteration, replacing plagioclase and biotite in the inner alteration zone of veins (e.g.
Serpentine is a product of wall-rock alteration replacing olivine in mafic rocks of the district (e.g.