Zeolite facies — describes the mineral assemblage resulting from the pressure and temperature conditions of low grade metamorphism. The zeolite facies is generally considered to be transitional between diagenetic processes which turn sediments into sedimentary… … Wikipedia
Metamorphic facies — Eclogite Blueschist Greenschist Prehnite Pumpellyite … Wikipedia
Prehnite-pumpellyite facies — The prehnite pumpellyite facies is a metamorphic facies typical of subseafloor alteration of the oceanic crust around mid ocean ridge spreading centres. It is a metamorphic grade transitional between zeolite facies and greenschist facies… … Wikipedia
metamorphic rock — Any of a class of rocks that result from the alteration of preexisting rocks in response to changing geological conditions, including variations in temperature, pressure, and mechanical stress. The preexisting rocks may be igneous, sedimentary,… … Universalium
Basalt — For the World War II raid, see Operation Basalt. For the cities, see Basalt, Colorado and Basalt, Idaho. Basalt Igneous Rock Composition … Wikipedia
Chlorite group — For the chemistry term, see chlorite. Chlorite group General Category Mineral Chem … Wikipedia
PREHNITE — La prehnite cristallise dans le système orthorhombique. Les cristaux aux formes nettes sont rares, ils se présentent sous la forme de tablettes ou de bâtonnets courts. Il existe plusieurs variétés du minéral: la prehnite crêtée formée de lamelles … Encyclopédie Universelle
Aerinite — (Ca4(Al,Fe,Mg)10Si12O35(OH)12CO3·12H2O)http://rruff.geo.arizona.edu/doclib/hom/aerinite.pdf Handbook of Mineralogy] is a bright yellow to light brown inosilicate mineral. It crystallizes in the monoclinic system and occurs as fibrous masses and… … Wikipedia
Sedimentary exhalative deposits — (abbreviated as SEDEX from SEDimentary EXhalative) are ore deposits which are interpreted to have been formed by release of ore bearing hydrothermal fluids into a water reservoir (usually the ocean), resulting in the precipitation of stratiform… … Wikipedia
Laumontit — (Museo Geominero de Madrid) Chemische Formel CaAl2Si4O12 · 4 H2O Mineralklasse Gerüstsilikat Zeolithgruppe 09.GB.10 (nach Strunz) 77.01 … Deutsch Wikipedia