holocrystalline


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holocrystalline

[¦häl·ō′krist·əl·ən]
(petrology)
Pertaining to igneous rocks that are entirely crystallized minerals, without glass.
References in periodicals archive ?
Hornblende-rich gabbro is melanocratic, holocrystalline, medium to coarse grained and subporphyritic in texture (Fig.
They contain a holocrystalline, porphyritic and fine-grained to medium-grained groundmass.
This is a pinkish coloured medium- to coarse-grained holocrystalline rock of granitic composition (sample AN47), with a moderate hydrothermal alteration (Fig.
They are fine- to medium-grained and holocrystalline to hypocrystalline; many are porphyritic and some display flow alignment in phenocrysts.
A single sample of fresh, medium-grained, holocrystalline basalt from the lower flow unit of this thick (i.
The LFU, [less than or equal to] 180 m thick, is dominated by massive, mostly holocrystalline, medium-grained basalt with well-developed columnar jointing.
These rocks (KS-6 andamp; KS-9) are holocrystalline porphyritic and cumulophyric in texture.
The LFU ([less than or equal to]190 to [less than or equal to]40 m) is a medium- to coarse-grained, massive, columnar jointed basalt of dominantly holocrystalline texture with minor vitrophyre.
Petrographically, the basalts are described as containing calcic plagioclase, augite, and rarer pigeonite and bronzite, and Fe-Ti oxides, and vary from holocrystalline to variably vitrophyric ([less than or equal to]30%).