GOL 105 Exam 3 Test Questions and Answers Graded A+
refers to the changes in shape or position of a
Deformation
rock body in response to ditterential stress.
Term for the processes that collectively produce a moun- Orogenesis (oros=mountains, genesis=to come into be-
tain belt is ing)
An episode of mountain building is called an Orogeny
Common types of folds anticline and syncline
usually form by the upfolding, or arching of
Anticlines
sedimentary layers
Typically found an association with anti-clients are down-
Synclines
folds or troughs called
These usually result from the col-
lision of one or more small crustal fragments with a con-
Collisional mountains
tinental margin or from the closure of an ocean basin that
results in the collision of two major landmasses.
Volcanic arc, deep ocean trench, forearc region & back-arc
Subduction zones can be roughly divided into 4 regions:
region
Molten rock rises, eventually leading to the growth of a
or simply , on the ocean Volcanic island arc, island arc
floor.
When oceanic lithosphere is subducted beneath a conti-
Continental volcanic arc
nental block, a results.
Where oceanic lithosphere bands as it descends into the
Deep-ocean trench
mantle, a results
The region of a subduction zone is located be-
tween a deep-ocean trench and the associated volcanic Forarc
arc.
Another site where sediments and volcanic debris ac-
cumulate is the , which is located on the
1/7
, GOL 105 Exam 3 Test Questions and Answers Graded A+
backside of a volcanic arc when
Back-arc
viewed from the trench
Collections of igneous plutons called Batholiths
The resulting chaotic accumulation of deformed and
thrust-faulted sediments and scraps of ocean crust is accretionary wedge
called an
This region, which is composed of relatively undeformed
layers of sediment and sedimentary rocks, is called a forearc basin
The zone where two continents collide and are "welded"
suture
together is called a
Noteworthy features of most collisional mountain ranges
are . These mountainous zones re-
sult from the deformation of thick sequences of shal- Fold-and-thrust belts
low marine sedimentary rocks, like those currently found
along passive continental margins of the Atlantic.
These accreted blocks of crust are called terranes
Some crustal fragments that have become terranes were
once-
similar to the modern-day island of microcontinents
Madagascar,
located east of Africa in the Indian Ocean.
Which of the following is the best description for structural
Study of rock deformation in response to tectonic forces
geology?
Which tectonic boundary is associated with compression-
convergent
al stress?
Does this photo show evidence of ductile or brittle defor-
Mainly ductile
mation? (field of view is about 15 cm wide and 10 cm tall)
2/7
refers to the changes in shape or position of a
Deformation
rock body in response to ditterential stress.
Term for the processes that collectively produce a moun- Orogenesis (oros=mountains, genesis=to come into be-
tain belt is ing)
An episode of mountain building is called an Orogeny
Common types of folds anticline and syncline
usually form by the upfolding, or arching of
Anticlines
sedimentary layers
Typically found an association with anti-clients are down-
Synclines
folds or troughs called
These usually result from the col-
lision of one or more small crustal fragments with a con-
Collisional mountains
tinental margin or from the closure of an ocean basin that
results in the collision of two major landmasses.
Volcanic arc, deep ocean trench, forearc region & back-arc
Subduction zones can be roughly divided into 4 regions:
region
Molten rock rises, eventually leading to the growth of a
or simply , on the ocean Volcanic island arc, island arc
floor.
When oceanic lithosphere is subducted beneath a conti-
Continental volcanic arc
nental block, a results.
Where oceanic lithosphere bands as it descends into the
Deep-ocean trench
mantle, a results
The region of a subduction zone is located be-
tween a deep-ocean trench and the associated volcanic Forarc
arc.
Another site where sediments and volcanic debris ac-
cumulate is the , which is located on the
1/7
, GOL 105 Exam 3 Test Questions and Answers Graded A+
backside of a volcanic arc when
Back-arc
viewed from the trench
Collections of igneous plutons called Batholiths
The resulting chaotic accumulation of deformed and
thrust-faulted sediments and scraps of ocean crust is accretionary wedge
called an
This region, which is composed of relatively undeformed
layers of sediment and sedimentary rocks, is called a forearc basin
The zone where two continents collide and are "welded"
suture
together is called a
Noteworthy features of most collisional mountain ranges
are . These mountainous zones re-
sult from the deformation of thick sequences of shal- Fold-and-thrust belts
low marine sedimentary rocks, like those currently found
along passive continental margins of the Atlantic.
These accreted blocks of crust are called terranes
Some crustal fragments that have become terranes were
once-
similar to the modern-day island of microcontinents
Madagascar,
located east of Africa in the Indian Ocean.
Which of the following is the best description for structural
Study of rock deformation in response to tectonic forces
geology?
Which tectonic boundary is associated with compression-
convergent
al stress?
Does this photo show evidence of ductile or brittle defor-
Mainly ductile
mation? (field of view is about 15 cm wide and 10 cm tall)
2/7
