pneumatolytic mineral

Игры ⚽ Нужен реферат?

Scapolite — (Gr. asairos , rod, stone), is a group of rock forming silicate minerals composed of aluminium, calcium and sodium silicate with chlorine, carbonate and sulfate. The variations in composition of the different members of the group may be expressed … Wikipedia
Igneous differentiation — In geology, igneous differentiation is an umbrella term for the various processes by which magmas undergo bulk chemical change during the partial melting process, cooling, emplacement or eruption. Contents 1 Definitions 1.1 Primary melts 1.2… … Wikipedia
Bixbyite — is a manganese iron oxide mineral with formula: (Mn,Fe)2O3. The iron:manganese ratio is quite variable and many specimens have almost no iron. It is a metallic dark black with a Mohs hardness of 6.0 6.5 and a specific gravity of 4.9 5.0. It is a… … Wikipedia
Quartz-porphyry — Quartz porphyry, in petrology, is the name given to a group of hemi crystalline acid rocks containing porphyritic crystals of quartz in a fine grained matrix, usually of micro crystalline or felsitic structure. In specimens, the quartz appears as … Wikipedia
pneumatolysis — [no͞o΄mətäl′i sis, nyo͞o΄mətäl′i sis] n. [ModL: see PNEUMATO & LYSIS] the process of rock alteration and mineral formation by the action of gases emitted from solidifying igneous rocks pneumatolytic [no͞o΄mətə lit′ik, nyo͞o΄ətə lit′ik] adj … English World dictionary

Словари и энциклопедии на Академике