Shared Flashcard Set

Details

Final Exam
section 2
18
Geology
Undergraduate 1
05/04/2009

Additional Geology Flashcards

 


 

Cards

Term

Alfred Wegener became famous

for his theory called?

Definition
Continental Drift
Term
The super continent was named?
Definition
Pangaea
Term
What records/proof was used to support the existence of the super continent?
Definition
Matching fossils, rocks, ice locations, and the outline of the shape of the continents
Term
Remnant Magnestism results from?
Definition

Rocks acquiring the Earth's magnetic field

when they cool

Term
The Polarity of the of the Earth's magnetic field refers to?
Definition
The location of the Earth's north and south magnetic poles
Term
What records help support the idea of sea floor spreading?
Definition
  • Age of sea floor
  • Sea floor sediment thicken away from the ridges
  • Valleys running down the center of the ridges
  • Polarity stripes on the sea floor
Term

The Earth is an onion?

T or F

Definition
TRUE
Term
The compositional layers of the Earth are called?
Definition
Crust, Mantle, and Core
Term
The physical aspects of the lithosphere are?
Definition
Cold, brittle, strong, and less dense
Term
Divergent plate boundaries are places where?
Definition
Lithospheric plates move away from each other
Term
Subduction zone is?
Definition
the location of the down turning of the lithosphere (trench)
Term
The core is made of?
Definition
Lots of iron and lil bit of nickel
Term
Transform Fault characteristics:
Definition
abundant and shallow earthquakes
sheer stress
no volcanism
Term
What is stress?
Definition
force per unit area or the push or pull of a rock
Term
what is strain?
Definition
the measure of change and the shape to a stressed material
Term
The sea floor spreading rate is?
Definition
3-4cm per year
Term
Elastic rebound theory is?
Definition
the build of energy (bending of rocks under stress) the release of energy through rupture
Term
Distanced between 2 wave crest?
Definition
wavelength
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