The Solid Earth - Chapter 1: Metamorphic Rocks Flashcards
Relatively flat regions with extensive areas of metamorphic rocks
Shields
Metamorphic rocks are an important component of many mountain belts, where they make up a large portion of a mountain’s ______ _____.
crystalline core
True or false: metamorphic basement rocks often are highly deformed and intruded by igneous masses
True
Agents of change included in metamorphizing process
Heat
Pressure
Chemically Active Fluids
Under low-grade metamorphism the common sedimentary rock shale becomes the metamorphic rock ____
slate
True or false: in some high grade metamorphism, bedding plans, vessels, and fossils are rendered unrecognizable
True
When rocks at depth are subjected to directional pressure, they flow and bend into ____
folds
True or false: during metamorphism, the deformed material must remain solid
True
True or false: once melting occurs, metamorphic activity is actually termed igneous
True
Name a process associated with metamorphism because of intense stresses and high temperatures associated with large scale deformation
Mountain building
Extensive areas of metamorphic rocks that are said to have undergone _____ ____
regional metamorphism
This type of change takes place when rock is in contact with, or near, a mass of magma
Contact metamorphism
Is pressure only slightly greater than average associated with low or high grade metamorphism?
Low
The mineralogy of the ____ ____ determines the degree to which various metamorphic agents will cause change
Parent rock
What is the most important agent of metamorphism in that it provides the energy to drive chemical reactions resulting in the recrystallization of minerals?
Heat
