EESC 111 - Igneous Rocks (L 3) Flashcards

Terms Definitions
MINERALOGY: (Intrusive Igneous)

Granite (Porphyry)
K-Feldspar

Quartz

Plagioclase

Biotite
MINERALOGY: (Intrusive Igneous)

Granite
Plagioclase

K-Feldspar

Quartz

Biotite
MINERALOGY: (Intrusive Igneous)

Syenite
K-Feldspar

Amphibole
MINERALOGY: (Intrusive Igneous)

Diorite
Plagioclase

Amphibole

Biotite
MINERALOGY: (Intrusive Igneous)

Gabbro
Pyroxene

Plagioclase
MINERALOGY: (Intrusive Igneous)

Peridotite
Olivine

Pyroxene (Cr-Diopside)
MINERALOGY: (Extrusive Igneous)

Rhyolite
K-Feldspar

Quartz

Biotite

Amphibole
MINERALOGY: (Extrusive Igneous)

Dacite
Quartz

Plagioclase

Amphibole
MINERALOGY: (Extrusive Igneous)

Obsidian
Quartz
MINERALOGY: (Extrusive Igneous)

Trachyte
Albite
MINERALOGY: (Extrusive Igneous)

Andesite
Amphibole

Plagioclase
MINERALOGY: (Extrusive Igneous)

Lapilli Tuff (Andesitic)
(Pyroxene)
MINERALOGY: (Extrusive Igneous)

Basalt
Plagioclase

Pyroxene
MINERALOGY: (Extrusive Igneous)

Scoria
Mixture
Name the Rock and Type
Granite (Pophyry)

Intrusive Igneous
Name the Rock and Type
Granite

Intrusive Igneous
Name the Rock and Type
Syenite

Intrusive Igneous
Name the Rock and Type
Diorite

Intrusive Igneous
Name the Rock and Type
Gabbro

Intrusive Igneous
Name the Rock and Type
Peridotite

Intrusive Igneous
Name the Rock and Type
Rhyolite (Extrusive Igneous)
Name the Igneous Rock
Dacite
Name the Rock and Type
Trachyte (Extrusive Igneous)
Name the Igneous Rock and Formation
Obsidian (Extrusive)
Name the Rock and Type
Andesite (Extrusive Igneous)
Name the Igneous Rock
Lapilli Tuff
Name the Igneous rock and Formation
Scoria (Extrusive)
Name the Rock and Type
Basalt (Extrusive Igneous)
COMPOSITION: (Intrusive)

Granite (Porphyry)
TEXTURE: Porphyritic with phaneritic groundmass

MAFICS: 5%

COMPOSITION: Felsic
COMPOSITION: (Intrusive)

Granite
TEXTURE: Phaneritic

MAFICS: 20%

COMPOSITION: Felsic
COMPOSITION: (Intrusive)

Syenite
TEXTURE: Phaneritic

MAFICS: 10%

COMPOSITION: Felsic
COMPOSITION: (Intrusive)

Diorite
TEXTURE: Phaneritic

MAFICS: 50%

COMPOSITION: Intermediate
COMPOSITION: (Intrusive)

Gabbro
TEXTURE: Phaneritic

MAFICS: 40%

COMPOSITION: Mafic
COMPOSITION: (Intrusive)

Peridotite
TEXTURE: Phaneritic

MAFICS: 100%

COMPOSITION: Ultramafic
COMPOSITION: (Extrusive)

Rhyolite
TEXTURE: Porphyritic with Aphanitic groundmass

COLOR: Light Gray

COMPOSITION: Felsic
COMPOSITION (Extrusive):

Dacite
TEXTURE: Porphyritic with Aphanaitic groundmass

COLOR: Brownish Gray

COMPOSITION: Felsic to Intermediate
COMPOSITION (Extrusive):

Obsidian
TEXTURE: Glassy

COLOR: Black

COMPOSITION: Felsic
COMPOSITION: (Extrusive)

Trachyte
TEXTURE: Porphyritic with Aphanitic groundmass

COLOR: Medium Gray

COMPOSITION: Felsic
COMPOSITION: (Extrusive)

Andesite
TEXTURE: Porphyritic with Aphanitic groundmass

COLOR: Medium Gray

COMPOSITION: Intermediate
COMPOSITION (Extrusive):

Lapilli Tuff
TEXTURE: Lapilli (Pyroclastic)

COLOR: Medium Gray (greenish)

COMPOSITION: Intermediate
COMPOSITION: (Extrusive)

Basalt
TEXTURE: Porphyritic with Aphanitic groundmass

COLOR: Dark Gray

COMPOSITION: Mafic
COMPOSITION (Extrusive):

Scoria
TEXTURE: Vesicular

COLOR: Medium Brown

COMPOSITION: Mafic
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Term:
Definition:
Definition:

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