leucocratic rock

См. также в других словарях:

• leucocratic — |lükə|krad.ik adjective Etymology: German leukokrat leucocratic (from leuk leuc + krat, from Greek kratein to rule, prevail) + English ic; akin to Greek kratos strength more at hard of a mineral or rock : having a light color compare melanocratic …   Useful english dictionary

• leucocratic — /looh keuh krat ik/, adj. Geol. (of a rock) composed mainly of light colored minerals. [LEUCO + CRAT + IC] * * * …   Universalium

• igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …   Universalium

• List of rock textures — This page is intended to be a list of rock textural and morphological terms. A * Adcumulate * Agglomeritic * Adamantine a type of lustre * Amygdaloidal * Anhedral * Antitaxial veins * Aphanitic * Aplitic; aplite * Augen textured gneiss *… …   Wikipedia

• andesinite — ˈandəzəˌnīt noun ( s) Etymology: andesine + ite : a leucocratic rock composed essentially of andesine …   Useful english dictionary

• Gascoyne Complex — The Gascoyne Complex is a terrane of Proterozoic granite and metamorphic rock in the central western part of Western Australia. The complex outcrops at the exposed western end of the Capricorn Orogen, a 1,000 km long arcuate belt of folded,… …   Wikipedia

• Narryer Gneiss Terrane — Stratigraphic range: > 3.3 Ga Satellite image of Jack Hills in the Narryer Gneiss Terrane Type Geological complex Sub units …   Wikipedia

• Felsic — is a term used in geology to refer to silicate minerals, magma, and rocks which are enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. The term combines the words feldspar and silica. Felsic minerals are… …   Wikipedia

• mesocratic — | ̷ ̷ ̷ ̷|krad.ik adjective Etymology: mes + cratic (as in leucocratic) of igneous rock : having nearly equal dark and light mineral constituents a mesocratic diorite compare leucocratic, melanocratic …   Useful english dictionary

• Litchfieldite — is a rare metamorphosed igneous rock. It is a variety of nepheline syenite and is composed of two near pure phases of feldspar, albite and microcline, with predominance of the first one, plus nepheline, sodalite, cancrinite and calcite. The mafic …   Wikipedia

• Anorthosite — (pronEng|æˈnɔrθəsaɪt/, /ə ) is a phaneritic, intrusive igneous rock characterized by a predominance of plagioclase feldspar (90–100%), and a minimal mafic component (0–10%). Pyroxene, ilmenite, magnetite, and olivine are the mafic minerals most… …   Wikipedia