Vocabulary Terms
You should be able to define the following terms.
fault | fault zone | shear zone | fissure |
fault scarps | fault-line scarp | offset | fault surface |
slickensided surface | slickenlines | striations | fault grooves |
mullions | crystal fiber linneations | chatter marks | smears |
tails | Drag folds | Gouge | Breccia |
Cataclasite | Psuedotachylite | ultracataclasite | Mylonite |
asperities | truncation | repetition of strata | omission of strata |
Concepts
You should be able to give short answers to the following questions:
1.) What types of geomorphic features can be used to recognize the presence of a fault?
2) What cautions should be considered in using geomorphic features to determine the sense of motion on faults?
3) What types of "ornamentation" can be found on fault surfaces?
4) How are these features used as "kinematic indicators"? Consider drawing a sketch of these features to explain your answer.
5) How are fault rocks produced and what are their major identifying characteristics?
6) How are fault rocks classified?
7) How are faults recognized from map patterns?
7a) What is the significance of missing strata?
7b) What is the significance of repetition of strata?
7c) What is the significance of the phrase "Older on Younger"?
7d) What is the significance of the phrase "Younger on Older"?