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18 Cards in this Set

  • Front
  • Back
waves that are primary, fast, compressional, and longitudinal
P WAVE
secondary waves that are tranverse, sheer, and slower than P waves
S WAVES
what is the outermost layer of the earth called?
CRUST
The inner core of the earth is very ____
DENSE
Why can we not hear P and S waves directly?
The frequency is too low
P waves travel through ____ and _____
FLUID AND SOLID
S waves can/cannot travel through fluid
CANNOT
Igneous rocks are characterized by large or small ____
CRYSTALS
large crystaled rocks are FAST/SLOW cooling and smaller crystaled rocks are FAST/SLOW cooling
SLOW; FAST
Desintegration of other rocks and deposited as sediment
SEDIMENTARY
Sandstone and limestone are what kind of rock?
SEDIMENTARY
The glacial period included what time in history?
QUATERNARY
What time period did the dinosaur extinction occur?
CRETACEOUS-TERTIARY
What was the time period of the dinosaurs?
JURASSIC
parallel stripes of different
magnetic orientation
PALEOMAGNETISM
thickness and age of
sediments increase with distance from midocean
ridge
CORE SAMPLING
Divergent plate boundaries MOVE APART/COLLIDE with each other and crust is ADDED/REMOVED
apart; added
Convergent plate boundaries MOVE APART/COLLIDE and crust is ADDED/REMOVED
collide; removed