Show:
St. Helens vs. Kilauea
Volcanism!
Let's get Intrusive
Not my fault... or fold
Orogenesis Things
100
Kilauea is an example of a ________ volcano.
What is shield
100
Lava, below the surface.
What is magma
100
The Sierra Nevada mountain chain is composed largely of these massive intrusive igneous structures.
What is batholiths
100
Folds in rock may occur when there is ______ deformation.
What is ductile
100
The Himalaya Mountains are forming along a ________ convergent plate boundary.
What is continental-continental
200
This type of volcanoes tend to have explosive eruptions due to a relatively thick magma.
What is a stratovolcano or composite volcano.
200
Super-heated clouds of gas and volcanic ash.
What is pyroclastic flows.
200
Common discordant rock bodies that cut across bedding surfaces.
What are dikes.
200
Faults in which movement is parallel to the dip of the fault surface.
What is dip-slip fault.
200
This type of mountain chain often results from oceanic-oceanic convergence.
What is a volcanic island arc.
300
Name two factors that determine the strength of volcanic eruptions.
What is temperature of magma, composition of magma, types of dissolved gases (volatiles) in magma
300
Huge mudflows often caused by the melting of ice during a volcanic eruption.
What is lahars
300
A lens-shaped igenous rock body that forces layers of rock above to bow upwards.
What is a laccolith
300
Up-folded rock layers are known as...
What is anticlines
300
Plate boundaries that generate continental volcanic arcs are referred to as _______ -type plate margins.
What is Andean
400
Wizard Island is an example of a...
What is a cinder cone.
400
A name given to the area around the Pacific Ocean know for tectonic activity including earthquakes and volcanoes.
What is the Ring of Fire
400
Name a concordant igneous feature
What is a sill or laccolith
400
An up-warping of the crust, in which the oldest rocks are in the center.
What is a dome
400
A crustal fragment that has a geologic history distinct from that of the adjoining landmass.
What is a terrane
500
This volcano may someday pose a threat to Seattle and Tacoma, Washington
What is Mt. Ranier
500
Often, all that is left of volcanoes once most of the structure is worn away by weathering.
What is the volcanic neck.
500
Massive, globular plutonic rock bodies with a surface exposure of less than 100 square kilometers.
What is a stock.
500
The San Andreas fault in an example of this type of fault.
What is a strike-slip fault.
500
The crust under mountains tends to rise as the mountains are worn down. This process in known as...
What is isostasy or isostatic adjustment