Rocks

◙ Rocks are naturally occurring aggregates of minerals and/or mineraloids. Rocks are classified according to chemical composition, texture and composition of constituent minerals, and by the mode of formation (igneous, sedimentary, and metamorphic processes).

◊◊ Minerals Site Map ◊◊ see also IMA Commission On New Minerals And Mineral Names:

◘ Paleogeology items ◊◊ mineral groups ◊ minerals ▪ Geological Terms

Alphabetic Index to Rocks alphabetic sections ◊ A ◊ B ◊ C ◊ D ◊ E ◊ F ◊ G ◊ H ◊ I ◊ J ◊ K ◊ L ◊ M ◊ N ◊ O ◊ P ◊ Q ◊ R ◊ S ◊ T ◊ U ◊ V ◊ W ◊ X ◊ Y ◊ Z ◊ elements of periodic table ◊ Mineral Index ◙◙ Rock Index: Igneous Rocks ◙◙ Rock Index: Metamorphic Rocks ◙◙ Rock Index: Sedimentary Rocks ◙◙

A ◙ acid rocks ◙ alkali rocks ◙ alkaline basalts ◙ AMCG, AMG ◙ amphibolites ▪ anatexis ◙ Archean rocks ▪ assimilation ◙ andesites ◙ anorthosites ◙ aplites ◙

B ◙ basalt ◙ basic rocks ▪ batholith ◘ biostratigraphy ◙ blueschist facies ◙ blueschist formations ◙ boninites ▪ Bowen's Reaction Series ◙ breccia ◙ brittle deformation ▪ bysmolith ◙

C ◙ C- and C'-plane ◙ carbonates ◙ cement ◙ chemical weathering ◙ clast ◙ composition ▪ concordant ◊ crystallization ▪ cumulates ▪

D ◙ dacite ◙ deformation (brittle, ductile, elastic) ◙ deviatoric stress ▪ diapir ▪ diatreme ◙ differential stress ▪ dike ◙ diorites ▪ discordant ◙ ductile deformation ◙ dunites

E ◙ eclogites ◙ eclogite facies ◙ elastic deformation ▪ enclaves ◙ evaporates & sulphates

F ◙ felsic ◘ felsic (sial) ◙ foliation

G ◙ gabbro ◙ gneisses, gneissic, gneiss belts ◙ granite ◙ granodiorite ◙ granulites ◙ granulite facies ◙ greenschist facies ▪ greenstone belts ◙ greenstone-hosted quartz-carbonate vein deposits ◙ groundmass ◙ GQCV

H ◙ HFSE elements ◙ high-alumina basalts ◙ high field strength elements (HFSE) ◘ hornfels

I ◙◙ Igneous Rocks: Rock Index ◘ igneous rocks ◙ incompatible elements ◙ index minerals (metamorphic) ◙ intermediate rocks ◙

J ◙

K ◙ keratophyres ◙ kimberlite ◙ komatiites ◙

L ◙ L-tectonites, L-S tectonites ▪ laccoliths ◙ lamprophyres ◙ large-ion lithophile elements (LILE) ◘ lava ◙ leucosome ◙ LILE elements ◙ lithostatic stress ◙

M ◙ mafic rocks ◘ mafic (sima) ◘ magma ◙ mangerite (AMG, AMCG) ◙ matrix ◙ melanosome ◙ mesosome ◙ metamorphic facies ◙ metamorphic facies and regional metamorphism ◙ metamorphic index minerals ◘ metamorphic rocks (migmatites, pelites, psammites) ◙ metamorphic rocks ◙ metamorphosed chemical rocks ◙ metamorphosed sedimentary rocks ◙ migmatites ◙ MORB ◙ mylonites ◙ ◙◙ Metamorphic Rocks : Rock Index ◙ metamorphic facies ◙ metamorphic facies and regional metamorphism ◙ metamorphic index minerals ◙ amphibolite facies ◙ blueschist facies ◙ eclogite facies ◙ granulite facies ◙ greenschist facies ◘ hornfels facies ◙ prehnite-pumpellyite facies ◙ sanidinite facies ◙ zeolite facies ◙ ◘ metamorphism, regional : Buchan, Barrovian, Franciscan, Sanbagawa ◘ contact metamorphism ◘ dynamic metamorphism ◘ hydrothermal metamorphism ◘ impact metamorphism ◘ metamorphism ◘ regional metamorphism ◘ tectonics ◘ thermal metamorphism

N ◙ neosome

O ◘ ophiolite complexes ▪ ophiolites ◙ ores ◙ oxides

P ◙ paleosome ◙ pegmatites ◙ pelites ◙ peridotite ▪ phenocryst ▪ plutonic ◙ porphyroclast, distorted and shear sense ▪ porphyry ◙ prehnite-pumpellyite facies ◙ psammites ◙ pseudotachylites ◙ ptygmatic ◙

Q ◙ QAPF diagram ◙ quartzite

R ◙ restite ◙ rhyolites

S ◙ S/C fabric ◙ S-foliation ◙ S-plane ◙ S-tectonites ◙ sanidinite facies ◙ schists ◙ schlieren ▪ schlieren ◙◙ Sedimentary Rocks: Rock Index ◘ sedimentary rocks ◙ serpentinites ◙ serpentinization ◙ shear sense ◙ shearing ◙ shear, stress, strain ◙ shear zone ▪ sills ◙ slickensides ◙ -somal ▪ strata ◙ subduction zone magmas ◙ sulphates & evaporates ◙

T ◙ TAS classification ◙ tectonites (S-, L-, L-S) ▪ texture ◙ theolitic, tholeiitic ◙ tholeiitic basalt ◙ tonalites ◙ Trondhjemite ◙ TTG

U ◙ ultrabasic rocks ◙ ultramafic rocks

V ◙ Vocanic Rocks: Rock Index ▪ volcano ▪ vulcanism ◙

W ◙ weathering

X ▪ xenoliths

Y ◙ Yellowknife: images of lithology and geomorphology of Slave Craton

Z ◙ zeolite facies

Geological Terms : Sections ▪ A ▪ B ▪ C ▪ D ▪ E ▪ F ▪ G ▪ H ▪ I ▪ J ▪ K ▪ L ▪ M ▪ N ▪ O ▪ P ▪ Q ▪ R ▪ S ▪ T ▪ U ▪ V ▪ W ▪ X ▪ Y ▪ Z ▪ animations ▪ diagrams ▪ tables

Site Maps  Diagrams & Tables ▪ Geological Terms ◘ Paleogeology

Links : chemical composition : crystallography : images :