nematoblastic

[¦nem·ə·də¦blas·tik]

(petrology)

Pertaining to a metamorphic rock with a homeoblastic texture due to development during recrystallization of slender prismatic crystals.

References in periodicals archive ?

Schistose amphibolite and metagabbro are represented by fine-grained, equigranular rocks of granonematoblastic, nematoblastic, relict gabbro, poikilitic texture.

PETROPHYSICAL PROPERTIES OF THE PECHENGA ROCKS OF DIFFERENT METAMORPHIC FACIES

The compositional banding is reflected by alternating nematoblastic (hornblende) and granoblastic (plagioclase) bands, within which epidote-group minerals and garnet porphyroblasts occurs.

The compositional banding is reflected in alternating hornblende-bearing nematoblastic and plagioclase-bearing granoblastic bands, within which epidote-group minerals and garnet porphyroblasts occur.

Petrology, geochemistry and geochronology of the Arquia Complex's metabasites at the Pijao-Genova sector, Central Cordillera, Colombian Andes

The metamorphic units comprise garnet-glaucophane schist (lepi-doporphyroblastic texture), epidote-chlorite schist (lepidoblastic texture), garnet-lawsonite-glaucophane schist and epidotite (nematoblastic texture) (Fig.

Occurrence of Cr-bearing beryl in stream sediment from Eskisehir, NW Turkey

Staurolite metabasites are characterized by alternating nematoblastic bands composed of hornblende and staurolite (with penetration twinning) and granoblastic bands composed of quartz and plagioclase (Figures 3k-l).

Alternating nematoblastic bands of hornblende and staurolite and granoblastic bands of quartz and plagioclase in the staurolite metabasites.

Primer reporte y significado de las metabasitas con presencia de estaurolita asociadas a una secuencia de rocas calcosilicatadas en la Formacion Silgara de la region central del Macizo de Santander, Colombia

However, most of the studied metabasites are nematoblastic amphibolites, consisting of Amp, Ep, Rt, Chl, Qz [+ or -] Grt [+ or -] white-mica [+ or -] Cb and Ilm [+ or -] Ttn after Rt.

Structure of the Andean Palaeozoic basement in the Chilean coast at 31[degrees] 30' S: geodynamic evolution of a subduction margin

The textures in the rocks are nematoblastic and granoblastic.

The textures found in the rocks are nematoblastic, granoblastic and porphyroblastic.

The existent textures include nematoblastic, granoblastic, porphyroblastic and poikiloblastic.

Pressure-temperature path of Arquia Group rocks (NW Colombia): a petrographic analysis from mineral assemblages

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