Rock Cycle Study Guide

Intrusive Igneous Rock
Forms in the mantle BELOW the Earth’s SURFACE
Extrusive Igneous Rock
Forms when magma flows ON TOP of the Earth’s SURFACE
Lava
Magma that flows out of volcanoes
Clastic Rocks
Rocks made from layers of pebbles and sand- Look like pieces of sediment with pebbles stuck in them (ex. sandstone)
Organic Rock
Froms fpr,the remains of once-living things (ex. chalk; coal)
Metamorphic Rock
Forms from igneous or sedimentary rocks from heat and pressure.
What do scientists call “changed rocks”
Metamorphic Rocks
Strata
Layers of sedimentary rock
Non-Foliated
When colors are mixed together in the rock
Foliated
When the colors are in bands in the rock
3 Things that Change a Metamorphic Rock FROM the Original Rock
1. HEAT
2. PRESSURE
3. SMOOTHNESS
3 Types of Sedimentary Rock
1. Clastic
2. Chemical
3. Organic
What changes into igneous rock when it cools
Magma
3 MAIN types of Rocks
1. Igneous
2. Sedimentary
3. Metamorphic
Scientists study rocks and rock strata learn about earths’
Past
WEATHERING
When Rock is Broken Down Slowly
Erosion
When the earth’s surface is worn away by of water and wind
What does Organic mean?
Made from nature
What 2 processes form Sedimentary Rocks
1. Compaction
2. Cementations
What 2 processes change any rock into an igneous rock
1. Melting
2. Solidification
Which clastic rock fine has fine to coarse texture (Type of sedimentary rock)
Sandstone
Which clastic rock has very grain texture (type of sedimentary rock)
siltstone
Which rock is made from compacted remains (type or sedimentary rock)
Bituminos coal
Which foliated rock is made due to low grade metamorphism of shale (type of metamorphic rock
Slate
Which foliated rock is created due to the high amount of hear and pressure (type of metamorphic rock)
phylite
Which Nonfoliated rock has fine to coarse texture and is composed of quartz? (type of metamorphic rock)
Quartzite
Which nonfoliated rock has a coarse texture and is composed of various minerals? (type of metamorphic rock)
metaconglomerate
Name one rock that has very coarse texture (larger crystals)
Pegmatite
3 Intrusive Igneous Rocks
Granite
Pemagrain
Diorite
Name one extrusive rock with fine texture (small crystals)
Rhyolite
Name 3 Extrusive Igneous Rocks
Obsidian
Pumice
Rhyolite