resistate

resistate

[ri′zis‚tāt]
(geology)
A sediment consisting of minerals that are chemically resistant and are enriched in the residues of weathering processes. Also known as residual sediment.
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References in periodicals archive ?
Further studies on the actual distribution of uranium in these weathered profiles is ongoing, as unlike uranium in resistate minerals such as zircon, uranium adsorbed onto secondary minerals or concentrated in apatite may be liberated and mobilized under changing Eh-pH conditions.
The lamproite could be a member of a kimberlitic intrusive suite from which the resistate minerals and the diamonds may be derived.
Resistate, igneous rock indicator mineral grains in the current river system are probably derived at least in part from 'reworking' of the early Quaternary 'fanglomerate' gravels.