Intrusive Igneous

Geology

41 cards·by AlexBuliis318

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Fine grained rock with quartz

Rhyolite

Fine grained

Aphantic

Last mineral to form as magma cools

quartz

First mineral to form as magma cools

Caplagioclase

Results in loss of elents from magma

Differential crystalization

Most common volcano formed by basalt

Shield

Sequence which lists the order minerals form as magma cools

Bowen's reaction

Plagioclase rich coarse grained rock

Diorite

Plagioclase rich coarse grained rock

Diorite

Coarse grained

Phaneritic

Rock which makes up lithospheric plates

Peridodite

Many holes in extrusive rocks

Scoriaceous

Largest Pluton

Batholith

Holes in extrusive rock

Vesicular

Volcanoes in Oregon

Strato

Common felsic mineral

Orthoclase

Low silica, dark minerals

Mafic

Tabular body which cuts through previous rocks

Dike

Dike which goes around throat

Ring dike

Olivine, pyroxenes and amphibole coarse grained

Gabbro

Piece of country rock surrounded by phaneritic rock

xenolith

Dike which extends away from throat

Radiating dike

Composition with high silica with light minerals

Felsic

Spreading ridge beneath continent

Insipient ridges

Formation of igneous rocks away from magma

Granitization

Cause of yellowstone intrusions and extrusions

plume

Collective term for all intrusive land forms

Pluton

Site of most intrusions

subduction zones

Taking minerals from country to rocks into magma

assimilation

Plagioclase, fine grained igneous rock

Andesite

Extrusive with highest olivine continent

Komatite

Most common volcano formed by rhyolite

cinder

Small pluton with concave surface

Laccolith

Alteration magma

Syntexis

Cools below the surface

Intrusive

Volcanic glass

obsidian

Horizontal pluton

Sill

Cooled throat of volcano

Stock

Olivine rich extrusive rock

Basalt

First ferromagnesian mineral to form as magma cools

olivine

Quartz rich phaneritic rock

Granite