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Terms in this set (64)
List three predominant rocks in Middle TN
2. limey shale
3. volcanic ash
In which geomorphic province does Nashville lie?
The proper formulas for silica/quartz and calcite are:
What is the leading solvent on the face of the Earth?
Provide the six steps to the Scientific Method:
1. find an issue
2. gather data
5. test hypothesis
6. create theory
The Volunteer State leads the nation in the mining of:
1. ball clay
List the three igneous rock types based on their silica content and color:
felsic, mafic, ultramafic
Intrusive rocks are ----- grained and cool -----, which extrusive rocks are ----- grained and cool -----.
coarse, slowly, fine, rapidly
List the three extrusive rock groups:
List the four intrusive plutons:
4. lower portion of volcanic neck
Erosion = ----- + -----
List the four means weathered material can be transported:
List the three types of volcanic cones:
East TN is comprised of four substances:
Contact metamorphism occurs in close proximity to localized -----, while regional metamorphism occurs during the much larger ----- -----.
plutons, mountain building
What are the two distinct differences in how igneous and metamorphic rocks are formed temperature and state?
Metamorphic: very hot and solid
Igneous: extremely hot and melted
When erosion removes considerable amounts of sediment then this sediment is replaced by new sediment at a later time this unconformity is considered to be a -----.
When dipping strata is eroded then considerable amounts of sediment are horizontally deposited on these tilting strata this is considered to be a -----.
When the top of a buried pluton is eroded then considerable amounts of sediment are horizontally deposited on these granitic rock this is considered to be a -----.
List four types of mountains:
What is a watershed?
land surface that drains to the same waterbody
Were the first vertebrates fish or amphibians?
List the four types of faults:
List four of the seven types of folds:
What do all mountains have in common?
exceed 1,000 ft of local relief
What is meant by local relief?
vertical distance or elevation difference btwn a peak and surrounding lowlands
Thrust faults ----- the Earth's crust, while normal faults ----- the Earth's crust.
Is the Smoky Mountain thrust fault TN's largest fault.
The standard sequence of events in erosional mountain building is:
What are the two ways in which orogenic mountains can be built?
2. colliding continents
The ----- crust is denser than the ----- crust and plunges into the subsurface.
The ---- crust is always the youngest because it is recycled through the mantle.
Two ----- crusts ran into one another to form the Himalayan Mountains.
The ----- wall is always above the fault plane, while the ----- wall is always below the fault plane.
List the three types of plate boundaries:
What two types of mountains are in TN?
Which is the most prevalent type of fault in TN?
The Appalachian Mountains were formed by ----- plate boundaries.
Plate tectonics is comprised of the following four key activities:
1. sea floor spreading
3. continental drift
4. convection cells
Convection cells in the Earth originates in the ---------- and emulate ----- -----.
lowermantle, boiling water
The theory of continental drift states that the ----- ----- and ------ ------ are riding on top of ----- ------.
oceanic crust, continental crust, upper mantle
The lithosphere is a combination of which layers of Earth?
The asthenosphere is the same layer as the ----- -----.
Which mountain range causes the most isostasy shrinkage?
The Age of Mammals
Age of Forests
Age of the Crinoids
Age of the Fishes
What do geologists think are the two geologic reasons for mass extinction at the ends of the Permian and Cretaceous?
oldest are on the bottom and youngest are on the top
the present is the key to the past
The proper order of density for the layers of the Earth:
continental, oceanic, upper mantle, lower mantle, outercore, innercore
List four of the seven contributing factors to mass wasting:
slopes, vegetation, old man time, climate conditions
When a pile of sand can no longer remain upright and it continues to slump, its ----- -- ----- has been exceeded.
angle of repose
What is occurring when a material is determined to be creeping?
slow, unit as a mass
What is occuring when a material is determined to be sliding?
rapidly, bedding plane
What is an aquifer?
rock/soil that holds a significant amount of water
What does porosity mean?
volume of open space/total volume
What does permeability mean?
ability of water to move through rock or soil
What is percolation?
movement of water through rock or soil
What is a water table?
horizontal plane marking the top of a saturation zone
During the wet months of Dec-May, the ----- water recharges the ------ water.
List three of the eight surface karst features well-known in TN:
Karst window, Sinkhole, open fracture
List three of the six subsurface karst features well-known in TN:
stalagmites, stalactites, geodes
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