9. MONOCLINE
involves a slight bend in otherwise parallel layers of
rock.
form by vertical movement and generally found fault
below monocline
10. ANTICLINE
a fold that arches upward. The rocks dip away from
the center of the fold.
The oldest rocks are found at the center. The
youngest rocks are draped over them at the top of
the structure
Also called the “dome”.
11. SYNCLINE
a fold where the rock layers are warped downward.
Both anticlines and synclines are the result of
compressional stress.
the youngest rocks are at the center. The oldest
rocks are at the outside edges.
Also called the “basin”.
12. FAULT
are cracks in the earth's crust where
movement occurs on at least one side.
are formed in the Earth's crust as brittle
response to STRESS.
Earthquakes occur along faults because of
the sliding
15. TYPES OF FAULT
Normal Fault
Reverse Fault
Strike-Slip Fault
16.
17. NORMAL FAULT
happen in areas where the rocks are pulling
apart (tension stress) so that the rocky crust of
an area is able to take up more space.
18. REVERSE FAULT
the rocks are pushed together (compression stress),
and the hanging wall moves upward along the fault
relative to the footwall.
This is literally the 'reverse' of a normal fault.
Sometimes called “Thrust fault”
19.
20. STRIKE – SLIP FAULT
a fault on which the two blocks slide past
one another caused by shearing stress.
