Sedimentary Rocks
Metamorphic Rocks
Structural Geology
Geologic Time
Misc
100
What are the three major categories of sed. rocks?
Chemical, Clastic, and Biogenic
100
What three things are needed to form a metamorphic rock?
Time, pressure, and heat
100
What are the three types of plate boundaries?
Tensional force(divergent)
Compressional force(convergent)
Shearing force(transformation)
100
An isotope refers to what?
An atom of the same element with different numbers of neutrons but same number of protons
100
The spot directly above where an earthquake happened is known as the what?
Epicenter
200
If the angle of repose for a given slop is 30 degrees. What will happen when the slop exceeds that angle?
A landslide/mass wasting
200
This type of metamorphism temperature driven and typically involve rock encountering something hot like magma
Contact Metamorphism
200
What kind of fault is this: 
Reverse Fault
200
This principle states that all layers are deposited flat originally
Principles of Original Horizontality
200
What type of unconformity is this: 
Disconformity
300
How would you describe the roundness and sorting of this image
Poorly sorted and angular
300
Gneiss has distinct bands of dark and light minerals this is an example of what kind of metamorphic rock?
Foliated Metamorphic rock
300
These small cracks are the most common response to stress on a rock
Joints
300
Would a small bird only found in north Chile that is very similar to another living species be a good index fossil, why or why not
No, it's hard to ID and not widespread
300
What are the three types of earthquake waves and what order would they arrive at a location?
P (primary) Waves, S (secondary) Waves, and L (long, surface) Waves
400
What are the steps to form a sedimentary rock in order (4 steps)
Weathering, Erosion, Deposition, and Lithification
400
A period of time where temp &/or Pressure are increasing referrers to
Prograde
400
What kind of fault forms due to a tensional force
Normal Fault
400
what are the four major eons of the geologic time scale
Hadean 4.5 - 4.0 Ga
Archean 4 - 2.5 Ga
Proterozoic 2.5 Ga - 550 Ma
Phanerozoic 550 Ma - present
400
What kind of plate tectonic zone (fault) produces the strongest earthquakes
Subduction zones
500
This is what you get when you let a rock go through extensive chemical weathering
Saporlite
500
Chlorite is an index mineral of which grade?
Low Grade
500
What type of fold is this (oldest layer is at the surface)
Antiform syncline
500
If Georilium has a half life of 10 days and starts with an original mass of 200 lb how much will be left after 30 days
200 > 100 > 50 > 25 lb
500
This scale ranges through numbers 1-10 and is logarithmic and measures how much rock moved at the time of an earthquake
Moment Scale