porphyroclasticadj.
/ˌpɔːfᵻrə(ʊ)ˈklastɪk/, U.S. /ˈˌpɔrfəroʊˈklæstɪk/ Geology.
Of a rock or its texture: marked by the presence of porphyroclasts.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > rock > texture or colour > [adjective] > texture > embedded crystals
ophitical1611
ophitic1870
poikilitic1886
hyalopilitic1888
miarolitic1889
hyalo-ophitic1920
poikiloblastic1920
porphyroblastic1920
porphyroclastic1920
1920 A. Holmes Nomencl. Petrol. 188 Porphyroclastic structure.
1975 Nature 20 Feb. 598/2 Rocks of the anorthosite association per se are separated from an amphibolite facies gneiss complex..by clearly marked zones of blastomylonite and porphyroclastic gneiss.
1993 Jrnl. Petrol. 34 431 In most of the acid granulites, protomylonitic (porphyroclastic) fabrics are prevalent.
This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022).
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adj.1920- promisable
- promiscous
- promiscously
- promiscual
- promiscually
- promiscuities
- promiscuity
- promiscuous
- promiscuously
- promiscuousness
- promiscuousnesses
- promise
- promise breach
- promise breaker
- promise fair
- promise oneself
- promise oneself something
- promise the earth
- promise the moon
- promise-bound
- promise-bounden
- promise-breaking
- promise-crammed
- promise-fulfilling
- promise-keeping