ESS 101 Rocks – Questions With Comprehensive
Solutions
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Terms in this set (124)
If a xenolith included within d. The pluton formed after 55 Ma ago.
an igneous pluton has a
numerical age of 55 million
years (Ma) old, what can
you infer about the age of
the pluton?
a. The pluton formed
before 55 Ma ago.
b. The pluton formed
before 100 Ma ago.
c. The pluton formed
exactly at 55 Ma ago.
d. The pluton formed after
55 Ma ago.
e. none of the above
answers are correct as you
cannot infer the pIuton's
age based on the
numerical ages
Radiocarbon is first d. atmosphere, nitrogen-14
produced _____ when
neutrons strike ______ atoms.
a. ocean, nitrogen-14
b. ocean, carbon-12
c. atmosphere, carbon-12
d. atmosphere, nitrogen-14
e. atmosphere, carbon-13
,A minimum of _______ seismic a. 3
stations is necessary to
determine the focus of an
earthquake.
a. 3
b. 10
c. 1
d. 300
e. 5
A volcanic neck is formed e. when a magma body solidifies within the vent of a
________ and the surrounding volcano and the surrounding material is eroded
rock erodes away.
a. when a magma body
intrudes a fracture that lies
parallel to sedimentary
layers
b. when a magma body
intrudes a fracture that lies
perpendicular to
sedimentary layers
c. when an irregular shaped
magma body intrudes the
country rock that is >100 km
2
d. when an irregular
shaped magma body
intrudes the country rock
that is <100 km 2
e. when a magma body
solidifies within the vent of
a volcano and the
surrounding material is
eroded
,In order to relieve stress b. 30
buildup that would cause a
magnitude 5 earthquake,
approximately how many
magnitude 4 earthquakes
would have to occur?
a. l0
b. 30
c. 300
d. 900
e. 27,000
Limestone generally e. none of the above answers are correct as limestone
precipitates in deep ocean typically precipitates in shallow ocean water
water because_______.
a. calcium carbonate
precipitates in cold water
b. calcium carbonate is less
soluble (dissolvable) in
cold water
c. calcium carbonate is
more soluble (dissolvable)
in cold water
d. dissolved calcium
carbonate is only present in
deep water
e. none of the above
answers are correct as
limestone typically
precipitates in shallow
ocean water
Symmetric anticline folds a. bi-directional stresses
result from______.
a. bi-directional stresses
b. uni-directional stresses
c. extensional stresses
d. erosion of plugging
(tilted) anticlines and
synclines
e. erosion of tilted strata
, What conditions are e. all of the above answers are correct
necessary to form oolitic
limestone?
a. warm water conditions
b. active waves and
currents
c. shallow water
d. lots of marine plant life
e. all of the above answers
are correct
Pillow basalts form when c. erupted into water
basalt is ________.
a. erupted rapidly from
fissures into the
atmosphere
b. erupted slowly within
lava tubes
c. erupted into water
d. erupted from a small
vent
e. none of the above
answers are correct
Strato volcanoes consist of c. interlayered pyroclastic and lava flows
______?
a. interlayered basalt flows
b. interlayered pyroclastic
flows
c. interlayered pyroclastic
and lava flows
d. viscous rhyolite flows
e. exclusively of stratified
volcanic ash layers
Solutions
Save
Terms in this set (124)
If a xenolith included within d. The pluton formed after 55 Ma ago.
an igneous pluton has a
numerical age of 55 million
years (Ma) old, what can
you infer about the age of
the pluton?
a. The pluton formed
before 55 Ma ago.
b. The pluton formed
before 100 Ma ago.
c. The pluton formed
exactly at 55 Ma ago.
d. The pluton formed after
55 Ma ago.
e. none of the above
answers are correct as you
cannot infer the pIuton's
age based on the
numerical ages
Radiocarbon is first d. atmosphere, nitrogen-14
produced _____ when
neutrons strike ______ atoms.
a. ocean, nitrogen-14
b. ocean, carbon-12
c. atmosphere, carbon-12
d. atmosphere, nitrogen-14
e. atmosphere, carbon-13
,A minimum of _______ seismic a. 3
stations is necessary to
determine the focus of an
earthquake.
a. 3
b. 10
c. 1
d. 300
e. 5
A volcanic neck is formed e. when a magma body solidifies within the vent of a
________ and the surrounding volcano and the surrounding material is eroded
rock erodes away.
a. when a magma body
intrudes a fracture that lies
parallel to sedimentary
layers
b. when a magma body
intrudes a fracture that lies
perpendicular to
sedimentary layers
c. when an irregular shaped
magma body intrudes the
country rock that is >100 km
2
d. when an irregular
shaped magma body
intrudes the country rock
that is <100 km 2
e. when a magma body
solidifies within the vent of
a volcano and the
surrounding material is
eroded
,In order to relieve stress b. 30
buildup that would cause a
magnitude 5 earthquake,
approximately how many
magnitude 4 earthquakes
would have to occur?
a. l0
b. 30
c. 300
d. 900
e. 27,000
Limestone generally e. none of the above answers are correct as limestone
precipitates in deep ocean typically precipitates in shallow ocean water
water because_______.
a. calcium carbonate
precipitates in cold water
b. calcium carbonate is less
soluble (dissolvable) in
cold water
c. calcium carbonate is
more soluble (dissolvable)
in cold water
d. dissolved calcium
carbonate is only present in
deep water
e. none of the above
answers are correct as
limestone typically
precipitates in shallow
ocean water
Symmetric anticline folds a. bi-directional stresses
result from______.
a. bi-directional stresses
b. uni-directional stresses
c. extensional stresses
d. erosion of plugging
(tilted) anticlines and
synclines
e. erosion of tilted strata
, What conditions are e. all of the above answers are correct
necessary to form oolitic
limestone?
a. warm water conditions
b. active waves and
currents
c. shallow water
d. lots of marine plant life
e. all of the above answers
are correct
Pillow basalts form when c. erupted into water
basalt is ________.
a. erupted rapidly from
fissures into the
atmosphere
b. erupted slowly within
lava tubes
c. erupted into water
d. erupted from a small
vent
e. none of the above
answers are correct
Strato volcanoes consist of c. interlayered pyroclastic and lava flows
______?
a. interlayered basalt flows
b. interlayered pyroclastic
flows
c. interlayered pyroclastic
and lava flows
d. viscous rhyolite flows
e. exclusively of stratified
volcanic ash layers
