GEOL Exam 1
wide spread, not equally dangerous, and expensive to fix
ASBESTOS is controversial because
Continental crust is less dense than oceanic crust
CONVERGENT plate boundaries are subducted because
Acid Mine Drainage
Concern with mineral PYRITE
Mid Ocean Ridges
Convergent plate boundaries are associated with
Lacked mechanism to explain how continents moved
Critical problem with Alfred Wagner's theory of CONTINENTAL DRIFT was that
Uranium
Critical role in mining in GJ
Blue
Dangerous form of Asbestos?
4 pCi/L
EPA "action level"
All of the above
Evidence supporting theory of PLAT TECTONICS include
Yellow color and low pH levels
How can you identify a river affected by Acid Mine Drainage
Heating uranium bearing rocks
How does Radon originate
Reversed polarity numerous times
MAGNETIC FIELD of the earth has
It is a gas
NOT a typical property of Asbestos
Use wetlands as an organic filter
Natural way to clean Acid Mine Drainage
Geological processes are especially active
PLATE TECTONICS BOUNDARIES are where
Lithosphere
PLATE TECTONICS are represented by
Iron and Sulfer
PYRITE consists of
True
People can be harmed by levels as low as 2 pCi/L
2nd leading cause of lung cancer
Radon is the
Large depressions filled with sediment
Sedimentary Basins are
Ground water, oil and gas
Sedimentary basins contain
Combating certain types of cancer
Use of Radium
Its radioactive properties
VANADIUM from the URAVAN MINERAL BELT
Seafloor Spreading
What 1960's key evidence was discovered that led to plate tectonics
Mobile in air but not water
Which is true about RADON GAs
