Rock Exam Flashcards by Nicholas Khaligh | Brainscape

Q

Porphyritic Andesite

A

Igneous

Composition - Intermediate (Andesitic)

Texture - Porphyritic

Intrusive

Rate of Cooling - Partial cooling (big crystals cooled slowly, the rest cooled fast)

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Q

Basalt

A

Igneous

Composition - Mafic (Basaltic)

Texture - Fine-grained

Extrusive

Rate of Cooling - Fast

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Q

Vesicular Basalt

A

Igneous

Composition - Mafic (Basaltic)

Texture - Vesicular

Extrusive

Rate of Cooling - Fast

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Q

Porphyritic Basalt

A

Igneous

Composition - Mafic (Basaltic)

Texture - Porphyritic

Extrusive

Rate of Cooling - Two stages (crystals cooled slow, rest cooled fast)

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Q

Diorite

A

Igneous

Composition - Intermediate (Andesitic)

Texture - Coarse-grained

Intrusive

Rate of Cooling - Slow

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Q

Gabbro

A

Igneous

Composition - Mafic (Basaltic)

Texture - Fine-grained

Intrusive

Rate of Cooling - Fast

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Q

White Granite

A

Igneous

Composition - Felsic (Granitic)

Texture - Fine-grained

Intrusive

Rate of Cooling - Fast

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Q

Pink Granite

A

Igneous

Composition - Felsic (Granitic)

Texture - Fine-grained

Intrusive

Rate of Cooling - Fast

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Q

Obsidian

A

Igneous

Composition - Felsic

Texture - Glassy

Extrusive

Rate of Cooling - Fast

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Q

Peridotite

A

Igneous

Composition - Ultramafic

Texture - Fine-grained

Intrusive

Rate of Cooling - Fast

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Q

Pumice

A

Igneous

Composition - Felsic

Texture - Vesicular (Glassy)

Extrusive

Rate of Cooling - Fast

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Q

Rhyolite

A

Igneous

Composition - Felsic (Granitic)

Texture - Coarse-grained

Extrusive

Rate of Cooling - Slow

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Q

Porphyritic Rhyolite

A

Igneous

Composition - Felsic

Texture - Porphyritic

Intrusive

Rate of Cooling - Two stages (crystals cooled slow, rest cooled fast)

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Q

Alabaster

A

Sedimentary

Chemical

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Q

Bituminous Coal

A

Sedimentary

Biogenic

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Q

Conglomerate

A

Sedimentary

Clastic

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Q

Chalk

A

Sedimentary

Biogenic

Q

Coquina

A

Sedimentary

Biogenic

Q

Oolitic Limestone

A

Sedimentary

Chemical

Q

Skeletal Limestone

A

Sedimentary

Biogenic

Q

Micritic Limestone

A

Sedimentary

Chemical

Q

Dolomitic Limestone

A

Sedimentary

Chemical

Q

Arenitic Sandstone

A

Sedimentary

Clastic

Q

Arkosic Sandstone

A

Sedimentary

Clastic

Q

Greywacke

A

Sedimentary

Clastic

Q

Siltstone

A

Sedimentary

Clastic

Q

Carbon-Rich Shale

A

Sedimentary

Clastic

Q

Clay-Rich Shale

A

Sedimentary

Clastic

Q

Chert

A

Sedimentary

Chemical

Q

Amphibolite

A

Metamorphic

Non-Foliated (or Foliated, technically)

Parent Rock - Mafic or ultramafic igneous rocks

Q

Gneiss

A

Metamorphic

Foliated

Parent Rock - Shale/Mudstone

Q

White Marble

A

Metamorphic

Non-Foliated

Parent Rock - Limestone/Dolostone

Q

Pink Marble

A

Metamorphic

Non-Foliated

Parent Rock - Limestone/Dolostone

Q

Phyllite

A

Metamorphic

Foliated

Parent Rock - Shale/Mudstone

Q

Quartzite

A

Metamorphic

Non-Foliated

Parent Rock - Sandstone

Q

Biotite Schist

A

Metamorphic

Foliated

Parent Rock - Shale/Mudstone

Q

Garnet Schist

A

Metamorphic

Foliated

Parent Rock - Shale/Mudstone

Q

Gray Slate

A

Metamorphic

Foliated

Parent Rock - Shale/Mudstone

Q

Red Slate

A

Metamorphic

Foliated

Parent Rock - Shale/Mudstone

Q

Anthracite Coal

A

Metamorphic

Non-Foliated

Parent Rock - Bituminous Coal