Hornfels forms as a result of ____________ metamorphism. dynamothermal hydrother
ID: 113517 • Letter: H
Question
Hornfels forms as a result of ____________ metamorphism.
dynamothermal
hydrothermal
dynamic
thermal
Which of the following processes CANNOT occur in the formation of metamorphic rock?
the realignment of minerals so that they develop a preferred orientation
the segregation of minerals into layers of different compositions
the solid-state rearrangement of atoms or ions to create a new assemblage of minerals
complete melting of the rock, followed by solidification to form a new rock
eating up a rock causes the atoms in the rock to vibrate and break their bonds. The atoms can then move slightly and create new bonds with nearby atoms. This process is called
preferred orientation
solid-state diffusion
plastic deformation.
melting
A nonfoliated metamorphic rock that is composed entirely of calcite is called
hornfels
slate
quartzite
marble
Within a single mountain range,
only low-grade metamorphic rocks are likely to be found.
only high-grade metamorphic rocks are likely to be found.
only nonfoliated metamorphic rocks are likely to be found.
it is possible to find a variety of metamorphic rocks produced in distinct facies, including high-, intermediate-, and low-grade rocks.
Marble and quartzite are nonfoliated rocks because
they are never found beneath fault zones or collisional mountain ranges.
both are dominated by minerals that produce equant grains.
both are dominated by minerals with crystalline structures that cannot be dissolved.
dynamothermal metamorphism can break down the structures of their constituent minerals, but neither of these minerals is stable in that metamorphic environment.
Clay minerals within a slate are changed into mica minerals as a result of the application of heat to a rock. This is an example of
pressure solution.
plastic deformation
recrystallization
phase change
Which of the following is a high-grade metamorphic rock?
quartzite
slate
gneiss
schist
Change that takes place during metamorphism that is associated with hot water solutions (hydrothermal fluids) is termed
foliation
metasomatism
anachronism
hydrosomatism
Which of the following is a common foliated metamorphic rock?
marble
gneiss
hornfels
diorite
Thermal (contact) metamorphism occurs
in areas surrounding igneous intrusions.
only where gneiss is in contact with schist.
as a consequence of the sinking of a large geologic terrane to great depth.
only at the surface, where rock is in contact with the atmosphere.
The blueschist facies is a metamorphic realm of
high temperature and pressure.
low temperature and pressure.
high temperature but relatively low pressure.
high pressure but relatively low temperature.
Which of the following processes is NOT involved in metamorphism?
contact with a hot pluton
contact with hydrothermal fluids
heat and pressure associated with deep burial
cementation and compaction of grains during diagenesis
dynamothermal
hydrothermal
dynamic
thermal
Explanation / Answer
1.Hornfels forms as a result of ____________ metamorphism.
Answer:
d. thermal
Explanation: Hornfels is the group selected for a series of contact metamorphic rocks.Contact metamorphic rocks are generally known as hornfels.
2. Which of the following processes CANNOT occur in the formation of metamorphic rock?
Answer:
d. complete remelting of the rock, followed by solidification to form a new rock.
Explanation:Segregation of minerals,realignment of minerals and the solid state rearrangement of atoms or ions occurs in metamorphic rocks.
3. eating up a rock causes the atoms in the rock to vibrate and break their bonds. The atoms can then move slightly and create new bonds with nearby atoms. This process is called
Answer:
b. Solid-state diffusion
4. A nonfoliated metamorphic rock that is composed entirely of calcite is called
Answer: d. Marble
Explanation:Non-foliated metamorphic rocks such as hornfels, marble, quartzite.A nonfoliated metamorphic rock that is composed entirely of calcite is called marble.
5.Within a single mountain range,
Answer:
d.It is possible to find a variety of metamorphic rocks produced in distinct facies, including high-, intermediate-, and low-grade rocks.
Explanation:Metamorphic rocks are produced in high,low and intermediate rocks.
5.Which of the following is a high-grade metamorphic rock?
Answer: c. Gneiss
Explanation:
Gneiss is a high grade metamorphic rock.
.6.Which of the following is a common foliated metamorphic rock?
Answer: b. Gneiss
Explanation: Gneiss, phyllite,schist, and slate are foliated metamorphic rocks.
4. A nonfoliated metamorphic rock that is composed entirely of calcite is called
Answer: d. Marble
Explanation:Non-foliated metamorphic rocks such as hornfels, marble, quartzite.A nonfoliated metamorphic rock that is composed entirely of calcite is called marble.
5.Within a single mountain range,
Answer:
d.It is possible to find a variety of metamorphic rocks produced in distinct facies, including high-, intermediate-, and low-grade rocks.
Explanation:Metamorphic rocks are produced in high,low and intermediate rocks.
5.Which of the following is a high-grade metamorphic rock?
Answer: c. Gneiss
Explanation:
Gneiss is a high grade metamorphic rock.
.6.Which of the following is a common foliated metamorphic rock?
Answer: b. Gneiss
Explanation: Gneiss, phyllite,schist, and slate are foliated metamorphic rocks.
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