postmagmatic

postmagmatic

[‚pōst·mag′mad·ik]
(geology)
Pertaining to geologic reactions or events occurring after the bulk of the magma has crystallized.
References in periodicals archive ?
The effects of postmagmatic alteration in samples chosen for bulk rock analyses were assessed using petrographic and textural features where possible.
16 are particularly noteworthy as Ce/Yb and Zr/Nb ratios are parameters least affected by postmagmatic alteration (Gill 1981).