recrystalization

Answer:

heat and pressure break the bonds that join atoms in minerals and they join together differently as new bonds

structural geology

Answer:

- the study of how geologic units9bodies of rock or sediment) are arranged when first formed and how they are deformed afterwards.

deformed formations

Answer:

- geologic units that have adjusted to a severe stress(directed pressure)
- when a body of rock is subjected to severe stress, then it may eventually strain(undergo formation, such as a change in shape).

cross section

Answer:

a drawing of a vertical slice through Earth, with the matrial in front of it removed: a cutaway view.
- shows the arrangement of formations and thier contacts.
- if it is good, also shows the topography of the land surgace, like a topographic profile
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attitude

Answer:

- the orientation of a rock unit or surface.
1.strike
2.dip

attitude strike

Answer:

- the COMPASS BEARING (direction) of a line formed by the intersection of a horizontal plane(such as the surface of a lake) and an inclined layer(bed, stratum) of rock, fault, fracture, or other surface

attitude dip

Answer:

- the ANGLE between a horizontal plane and the inclined stratum, fault, or fracture.

dip angle

Answer:

- the inclination of the water line, down from the horizontal plane.
- always expressed in two digits( 45 degrees)

reverse faults(& thrust)

Answer:

- caused by compression(rock shortening)
- as compressional stress pushes the rocks together, one block of rock gets pushed atop another.
- when the hanging wall block has moved upward in relation to the footwall block.
- generally place older strata on top of younger strata.

strike slip faults(lateral faults)

Answer:

- caused by shear and involve horizontal motions of rocks.