Rock Cycle and 3 Types of Rocks-Sedimentary, Igneous and Metamorphic YouTube Lecture Handouts

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Image of Rock Types

Image of Rock Types

Image of Rock Types

IGENOUS ROCKS

Image of Bowen's Reaction Series

Image of Bowen's Reaction Series

Image of Bowen's Reaction Series

Table of Classification of Igneous Rocks - 1
Table of Classification of Igneous Rocks - 1

Ultra-felsic

Felsic (Granitic)

Intermediate

Mafic

(Basaltic)

Ultramafic

Light colored

Low in iron, magnesium, calcium, High in potassium, aluminum, sodium

Medium colored

Dark colored

High in iron, magnesium, calcium

Low in potassium, aluminum, sodium

Dark colored Very high in iron, magnesium

Very high silica content (up to 80%)

Silica/Oxygen: >65%

Silica/Oxygen: 53% to 65%

Silica/Oxygen: 45% to 52%

Silica/Oxygen: <45%

very low temperature, cools quickly

Low temperature

Medium temperature

High temperature

Very high temperature

Extremely sticky magma

High viscosity

Low viscosity - flow easily

Medium volatile content

Low volatile content

Very low volatile content

Table of Classification of Igneous Rocks - 2
Table of Classification of Igneous Rocks - 2

Felsic (Granitic)

Intermediate

Mafic

(Basaltic)

Ultramafic

Aphanitic

fine grain

(Fast cooling, Extrusive)

Rhyolite

Andesite

Basalt

Conditions to produce ultramafic flows do not exist in nature

Intermediate

Dacite

Diabase

Phaneritic

coarse grain

(Slow cooling, Intrusive)

Granite

Diorite

Gabbro

Peridotite

Glassy

Obsidian

Frothy

Pumice

Scoria

SEDIMENTARY ROCKS

METAMORPHIC ROCKS