ASBOG FG Practice Exam UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
What deposit is most closely associated with REEs? - CORRECT ANSWER Alkaline
igneous rocks - along carbonatites are enriched in REE
What is the oldest age of typical oceanic crust - CORRECT ANSWER 180 million
years - most ocean crust gets subducted
Sole marks - CORRECT ANSWER indicate the contact between a sand and an
overlying clay - sand fills depressions in the underlying clay creating convex wavelike forms
of the substrate
plagioclase, quartz, biotite, and hornblende would most likely be found in a - CORRECT
ANSWER dacite - has 20 to 60% quartz, an equally good answer would be rhyolite on
the volcanic side or grandodiorite on the plutonic side
What are oscillatory waves in inland bodies of water called? - CORRECT
ANSWER seiches - this is an oscillating wave in an enclosed body of water triggered
by earthquakes, tsunamis, severe storm fronts, or strong winds
A 4:1 (H:V) slope has what grade? what slope angle? - CORRECT ANSWER 25%, 14
degrees
Continental convergent plate margins are characterized by - CORRECT
ANSWER melanges of feldspathic sandstone, siltstone, and shale
Sphalerite, willemite, and smithsonite are all - CORRECT ANSWER zinc ores
, Given a bed with an orientation of N65W, 25S, what is the corresponding attitude -
CORRECT ANSWER 25 degrees, S 25W
All of these answers are dip and dip direction format which is 90 degrees from strike. That
means that all teh dip will always be the same, so you just need to select the corresponding
dip direction. perpendicular tot eh strike of 65 degrees to the south would make the dip
direction to the southwest. We can throw out two of the southeast dip directions. Then we just
have to figure out if S65W or S25W is 90 from the strike. S65W is only 50 degrees from the
strike
As defined by Richer on a Wood-Anderson Seismograph, what is the difference in amplitude
between a magnitude of 6 and 8 - CORRECT ANSWER 100 - 10 times for each
change in magnitude, so 10 x 10 for the change of 2 magnitudes
What would NOT be the expected origin of a mercury deposit? - CORRECT
ANSWER weathering
A bed has an attitude of N35 degrees W, 45 degrees NE. What is the apparent dip to the
north? - CORRECT ANSWER 30 degrees
tan a = tan d * sin B = tan 45 * sin 35 = 29.8 degrees
Which of the following is NOT true of a sedimentary facies - CORRECT
ANSWER Fossil remnants will be consistent throughout the facies
Name tree main physical properties of rocks which are logged by wirelines - CORRECT
ANSWER electrical, nuclear, acoustic
Which of the following rocks make poor aggregate for use with portland cement? -
CORRECT ANSWER chert - is a reactive silicate and will create a gel at the boundary
with cement
What symbol would you look for to obtain a good elevation control for placing an accurate
location and elevation of the site - CORRECT ANSWER BM - benchmark
ACTUAL QUESTIONS AND CORRECT
ANSWERS
What deposit is most closely associated with REEs? - CORRECT ANSWER Alkaline
igneous rocks - along carbonatites are enriched in REE
What is the oldest age of typical oceanic crust - CORRECT ANSWER 180 million
years - most ocean crust gets subducted
Sole marks - CORRECT ANSWER indicate the contact between a sand and an
overlying clay - sand fills depressions in the underlying clay creating convex wavelike forms
of the substrate
plagioclase, quartz, biotite, and hornblende would most likely be found in a - CORRECT
ANSWER dacite - has 20 to 60% quartz, an equally good answer would be rhyolite on
the volcanic side or grandodiorite on the plutonic side
What are oscillatory waves in inland bodies of water called? - CORRECT
ANSWER seiches - this is an oscillating wave in an enclosed body of water triggered
by earthquakes, tsunamis, severe storm fronts, or strong winds
A 4:1 (H:V) slope has what grade? what slope angle? - CORRECT ANSWER 25%, 14
degrees
Continental convergent plate margins are characterized by - CORRECT
ANSWER melanges of feldspathic sandstone, siltstone, and shale
Sphalerite, willemite, and smithsonite are all - CORRECT ANSWER zinc ores
, Given a bed with an orientation of N65W, 25S, what is the corresponding attitude -
CORRECT ANSWER 25 degrees, S 25W
All of these answers are dip and dip direction format which is 90 degrees from strike. That
means that all teh dip will always be the same, so you just need to select the corresponding
dip direction. perpendicular tot eh strike of 65 degrees to the south would make the dip
direction to the southwest. We can throw out two of the southeast dip directions. Then we just
have to figure out if S65W or S25W is 90 from the strike. S65W is only 50 degrees from the
strike
As defined by Richer on a Wood-Anderson Seismograph, what is the difference in amplitude
between a magnitude of 6 and 8 - CORRECT ANSWER 100 - 10 times for each
change in magnitude, so 10 x 10 for the change of 2 magnitudes
What would NOT be the expected origin of a mercury deposit? - CORRECT
ANSWER weathering
A bed has an attitude of N35 degrees W, 45 degrees NE. What is the apparent dip to the
north? - CORRECT ANSWER 30 degrees
tan a = tan d * sin B = tan 45 * sin 35 = 29.8 degrees
Which of the following is NOT true of a sedimentary facies - CORRECT
ANSWER Fossil remnants will be consistent throughout the facies
Name tree main physical properties of rocks which are logged by wirelines - CORRECT
ANSWER electrical, nuclear, acoustic
Which of the following rocks make poor aggregate for use with portland cement? -
CORRECT ANSWER chert - is a reactive silicate and will create a gel at the boundary
with cement
What symbol would you look for to obtain a good elevation control for placing an accurate
location and elevation of the site - CORRECT ANSWER BM - benchmark
