Rock On!
This type of rock is created from the cooling and solidification of Magma or lava.
Igneous Rock
Igneous rocks that cool slowly beneath the earth's surface are classified as this.
Intrusive
Which type of metamorphism comes from underground rock touching hot magma?
Contact metamorphism
Lithification is when little pieces of broken rock called__________________ are compacted and cemented together to form rock.
sediment
What is the difference between weathering and erosion
Weathering breaks rocks, erosion transports the broken pieces to another location
This type of rock can only be formed underground and changes a parent rock into a new specific type of rock.
Metamorphic
Obsidian, which cools quickly from lava and has a smooth, glassy texture is an example of this type of igneous rock:
Extrusive
What do you call the original rock that is changed during metamorphism?
Parent rock
What do you call the process when wind blows sand from one place to another or any other type of movement of sediment from natural forces
erosion
In what direction do longshore currents flow
parallel to the shore (from side to side, not directly at the beach)
What two factors cause metamorphic rocks to form?
Heat and pressure
What do large crystals mean in Igneous rock and is it extrusive or intrusive?
Large crystals indicate slow cooling of magma. This is Intrusive igneous rock.
TRUE or FALSE: Metamorphic rock can form both underground or above ground
FALSE: Only underground
What do you call the settling of sediments after they are transported?
Deposition
What do longshore currents do to a beach?
Push the sand to another location further down the beach
Name two rocks that are formed from the cooling of LAVA.
Obsidian, pumice, basalt
Describe the crystal size of basalt and where we can find basalt.
Tiny crystals (extrusive) and it is found on the ocean floor or the moon
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Regional Metamorphism
What is weathering and name three agents of weathering.
weathering is the cracking or breaking off of rock. Agents of weathering: water flow, wind blown sediment, gravity, animals / plant roots , frost wedge
What feature is formed from the action of longshore currents at the beach?
A spit
SPECIAL IMAGE!
Granite (on the left) and Gneiss.
Granite is the parent rock
What are the holes called in Pumice and how do they get there?
Vesicles come from bubbling of water or hot gases during the cooling process of lava
Sea shells can pile up to form what type of sedimentary rock AND what does this rock become when it turns into metamorphic rock?
Limestone becomes marble
List the 5 major steps in sedimentary rock formation in order
weathering, erosion, deposition, compaction, cementation
SPECIAL IMAGE 3!