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EES 1000 Final
EES 1000 Final
61
Environmental Studies
Undergraduate 1
05/04/2011

Additional Environmental Studies Flashcards

 


 

Cards

Term
Who discovered the Continental Drift?
Definition
Alfred Wagner
Term
Who discovered sea floor spreading?
Definition
Harry Hess
Term
Who discovered marine magnetic anomaly?
Definition
Vine & Mathews
Term
What is the name of the super continent?
Definition
Pangea
Term
Name three important discoveries in support of continental drift.
Definition
fossils, age of rocks, & continental glaciers
Term
What is marine magnetic anomaly?
Definition
magnetic polar reversal + sea floor spreading
Term
Plate tectonic theory
Definition
lithosphere & asthenosphere
Term
Name the boundaries
Definition
converging, transforming, diverging
Term
Example of transforming
Definition
sand
Term
Example of continent/continent converging
Definition
Himalayas
Term
Example of continent/ocean converging boundaries
Definition
Andes
Term
Ring of fire produces
Definition
volcanoes, earthquakes, and tsumanis
Term
tsunamis are
Definition
seismic sea waves
Term
driving mechanism of plate tectonics is located in
Definition
asthenosphere
Term
convection cells are located un
Definition
asthenosphere and outer core
Term
What contributes to polar magnetic reversal and where are they located?
Definition
convection cells in the outer core
Term
balastic oceanic crust age can be determined by
Definition
distance from midatlantic ridge
Term
heat flow at midatlantic ridge is caused by
Definition
lava/magma
Term
_____ of rocks increase as you move away from the ridge
Definition
density
Term
water depth at ridge is
Definition
shallow
Term
continental shelf and continental rise are
Definition
underwater
Term
are the continental shelf and continental rise considered part of the ocean floor? why/why not?
Definition
No; ocean floor is balsaltic, shelf and rise are not.
Term
geomagnetic field caused by ______ in the ________ ________
Definition
dynamo effect;outer core
Term
geomagnetic polar reversal is caused by
Definition
coupled dynamo effect
Term
erosion surface- a break in the time sequence
Definition
unconformity
Term
above and below are sedimentary rocks
Definition
disconformity
Term
above are horizontal, below are angular
Definition
angular unconformity
Term
horizontal layers of sediment above, crystalline structures below
Definition
nonconformity
Term
Name the four fossils
Definition
Messaurus, Cynothos, Lystoarous, Glossopteris
Term
what does the richter scale measure?
Definition
amplitude
Term
what does the modified marchelli scale measure?
Definition
intensity
Term
What is the first wave?
Definition
Primary Wave
Term
What is the fastest wave?
Definition
P-wave
Term
What is the second wave?
Definition
Secondary wave
Term
What is the last wave?
Definition
surface wave
Term
name the wave: rock particles vibrate & moves in a parallel direction of motion
Definition
P-wave
Term
name the wave: cannot go through liquid
Definition
S-wave
Term
name the wave: movement is perpendicular
Definition
S-wave
Term
How many stations to know the distance of an earthquake?
Definition
1
Term
How many stations to figure out location?
Definition
3 (triangulation)
Term
bounces back
Definition
reflection
Term
goes through
Definition
refraction
Term
What are the three major boundaries?
Definition
crust, mantle, outer core, inner core
Term
What is the name of the boundary between the crust and the mantles?
Definition
MOHO
Term
Which is made of liquid? Outer Core or Inner Core
Definition
Outer Core
Term
What has low velocity?
Definition
Asthenosphere
Term
Which is above the asthenosphere?
Definition
lithosphere
Term
Boundaries from less intensity to most.
Definition
Tectonic plate beoundaries, converging, subduction, Benioff zone
Term
If a strike is given, how many dip directions and at what angle?
Definition
2 dip directions @ 90
Term
joint fracture
Definition
no more movement
Term
fault fracture
Definition
further movement
Term
What waves give the most information about interior?
Definition
Seismic
Term
axial plane is horizontal or nearly horizontal on these two folds:
Definition
overturned fold and recumbent fold
Term
both limbs are parallel
Definition
isocline fold
Term
negative gravity anomaly
Definition
low density or cave
Term
positive gravity anomaly
Definition
high density
Term
If the distance is doubled
Definition
force is decreased by 1/4
Term
If a tectonic plate is held down against isotasy
Definition
negative
Term
IF tectonic plate is held up at against isotasy
Definition
positive
Term
Austerlich & Aurora Borealis are
Definition
cosmic radiation interaction with geomagnetic fold
Term
[image]
Definition
Anticline and syncline
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