Metamorphic
Rocks
Rocks
What are the two types of metamorphism?
Regional and contact.
What are the two types of Igneous rocks?
Intrusive and Extrusive.
What are the three types of Sedimentary rocks?
Clastic, Organic, and Crystalline
How can you tell if a rock is vesicular?
When a rock has air pockets it is vesicular.
Define: Regional Metamorphism
Rocks that form deep underground as a result of intense pressure and heat.
Define: Intrusive Rock
A rock formed from magma which was forced into an older rock below ground.
Clastic rocks are....?
Made from compacted sediments and classified by size.
What kind of rock is diorite?
Diorite is an Igneous rock.
Define: Contact Metamorphism
Rocks that form when lava runs over an existing rock.
Define: Extrusive Rock
A rock derived from magma that was poured out or ejected above ground.
How can you tell sandstone is sedimentary?
Sandstone is sedimentary because it looks like it is made of sediments that were compacted and cemented together.
Why do some rocks have bigger crystals compared to others?
Depending on the cooling time the crystals will be different. The longer the cooling time the longer the crystals.
How do Metamorphic rocks form?
Metamorphic rocks form when other rocks are changed by exposure to intense heat and/or pressure.
How do Igneous rocks form?
Igneous rocks form from the cooling and solidification of lava or magma.
How do Sedimentary Rocks form?
Sedimentary rocks form from the compaction and cementation of sediments.
FILL IN THE BLANKS-
SLATE
Texture:_______________
Composition:______________
Type of Metamorphism:_______________
Parent Rock:_____________
Texture: FOLIATED
Composition: MICA
Type of Metamorphism: REGIONAL
Parent Rock: SHALE
Why do the minerals in metamorphic rocks ofter rearrange layers?
The need for stability under the new temperature and pressure conditions cause the structure of the minerals to rearrange and form new minerals.
What is the difference between intrusive and extrusive rocks?
Intrusive rocks form large crystals as magma cools slowly unlike extrusive rocks which have little to no crystals as lava cools quickly.
How do sedimentary rocks originate?
Sedimentary rocks originate when particles settle out of water or air, or by precipitation of minerals from water.
FILL IN THE BLANKS-
MARBLE
Texture:_______________
Composition:______________
Type of Metamorphism:_______________
Parent Rock:_____________
FILL IN THE BLANKS-
SLATE
Texture: NON-FOLIATED
Composition: CALCITE AND/OR DOLOMITE
Type of Metamorphism: REGIONAL OR CONTACT
Parent Rock: LIMESTONE OR DOLOSTONE