Sedimentary Rocks
Metamorphic Rocks
Water
Deformation of Rocks
Earthquakes
100
Very thin layers of silt and clay that often occur in shale.
What are beds?
100
The rock that a metamorphic rock formed from
What is a parent rock?
100
H2O soaking into the ground moving downward
What is infiltration?
100
A force that causes rocks to grind past each other.
What is shearing?
100
An earthquake’s source of energy is located at the _____________.
What is the focus?
200
The predominant mineral in most sandstones.
What is quartz
200
When shale is subjected to low-grade metamorphism, its minerals align themselves and the metamorphic rock __________ is formed.
What is slate?
200
Tthe largest H2O reservoir on Earth
What are oceans?
200
GVenerally the changes in size, shape, orientation or position of a rock mass.
What is deformation?
200
A tremor or smaller earthquake that precedes a main larger earthquake
What is a foreshock?
300
A sedimentary rock composed primarily of calcite.
What is limestone?
300
Following high-grade metamorphism, the segregation of minerals into separate bands is referred to as __________.
What is gneissic texture
300
The movement of water in erratic swirling patterns.
What is turbulent flow?
300
Two measurements are used to establish the orientation of deformed strata.
What are strike and dip?
300
Waves with slower, vertical motion, “shake” wave, causes temporary changes in rock shape.
What is an S-wave?
400
A sedimentary feature that turbidity currents are generally associated with.
What are ripple marks?
400
A type of metamorphism located in close association with a mid-ocean ridge
What is hydrothermal metamorphism?
400
Upper limit of where all open spaces within rock are filled with water.
What is the water table?
400
A low-angle reverse fault.
What is a reverse fault?
500
A sedimentary rock formed from chemically altered plant structures.
What is coal?
500
The type of metamorphism associated with largest volume of metamorphic rocks, associated with mountain belts and stable continental shields.
What is regional metamorphism?
500
A saturated, porous and permeable layer or stratum
What is an aquifer?
500
Roughly parallel fractures separating blocks that show no displacement
What are joints?
500
The deepest earthquakes occur at these plate boundaries.
What is convergent?
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