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

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