ASBOG FG Exam
reverse fault - ✔️✔️dip-slip fault in which the hanging wall pushes up relative to the
footwall; dip between 45-90 degrees
Riedel shears - ✔️✔️Small right-lateral faults which are gently inclined to the strike of
the main fault. Their presence suggests overall right-lateral motion on the zone; inclined
between 10-20 degrees
Throw - ✔️✔️The vertical displacement of rocks along the fault plane
Heave - ✔️✔️The amount of horizontal displacement on a fault
Klippe - ✔️✔️An outlier of a thrust sheet completely surrounded by the exposed fault
Listric fault - ✔️✔️A fault with a curved fault plane. Near the surface the fault plane is
steeply dipping, but it becomes progressively flatter with depth. Listric faults may be
normal or reverse.
Net Slip - ✔️✔️The distance between two formerly adjacent points on either side of the
fault, measured on the fault surface
Normal fault - ✔️✔️dip-slip fault in which the hanging wall drops down relative to the
footwall; dip between 45-90 degrees; associated with convergent plate tectonics
oblique-slip fault - ✔️✔️A fault with both strike-slip and dip-slip components.;
movement is not parallel to the strike or dip of fault plane
Pole - ✔️✔️A line perpendicular to a plane, and represented as a point on a
stereographic projection
Plunge - ✔️✔️The vertical angle between a line and horizontal
Calculate the dip from 3 points of differing elevation. - ✔️✔️Tan(dip angle)=rise/run ;
rise=high-low point; run=map distance between high and low point.
Calculate the dip between 3 points, 2 of which are equal elevation. - ✔️✔️Tan(dip
angle)=rise/run; rise=high-low point; run=map distance of perpendicular line drawn from
line connecting points of = elevation to low point.
Dip-slip fault - ✔️✔️a fault where the movement is parallel to the dip of the fault such
as normal, reverse, or listric
reverse fault - ✔️✔️dip-slip fault in which the hanging wall pushes up relative to the
footwall; dip between 45-90 degrees
Riedel shears - ✔️✔️Small right-lateral faults which are gently inclined to the strike of
the main fault. Their presence suggests overall right-lateral motion on the zone; inclined
between 10-20 degrees
Throw - ✔️✔️The vertical displacement of rocks along the fault plane
Heave - ✔️✔️The amount of horizontal displacement on a fault
Klippe - ✔️✔️An outlier of a thrust sheet completely surrounded by the exposed fault
Listric fault - ✔️✔️A fault with a curved fault plane. Near the surface the fault plane is
steeply dipping, but it becomes progressively flatter with depth. Listric faults may be
normal or reverse.
Net Slip - ✔️✔️The distance between two formerly adjacent points on either side of the
fault, measured on the fault surface
Normal fault - ✔️✔️dip-slip fault in which the hanging wall drops down relative to the
footwall; dip between 45-90 degrees; associated with convergent plate tectonics
oblique-slip fault - ✔️✔️A fault with both strike-slip and dip-slip components.;
movement is not parallel to the strike or dip of fault plane
Pole - ✔️✔️A line perpendicular to a plane, and represented as a point on a
stereographic projection
Plunge - ✔️✔️The vertical angle between a line and horizontal
Calculate the dip from 3 points of differing elevation. - ✔️✔️Tan(dip angle)=rise/run ;
rise=high-low point; run=map distance between high and low point.
Calculate the dip between 3 points, 2 of which are equal elevation. - ✔️✔️Tan(dip
angle)=rise/run; rise=high-low point; run=map distance of perpendicular line drawn from
line connecting points of = elevation to low point.
Dip-slip fault - ✔️✔️a fault where the movement is parallel to the dip of the fault such
as normal, reverse, or listric
