Lab 7 Worksheet Geologic Structures (33 points)
Name Brittanie Roberts (-2 points if missing)
Date 03/19/2019
Use your textbook, lab and lecture
... [Show More] PowerPoints, and internet as needed to
answer all questions in each of the 2 parts. Please explain everything in your own
words.
Part 1
1. In a tensional regime, would we find more normal or more reverse faults,
and why?
a. Normal Faults the plates are being pulled apart and have a hanging
wall down relative to footwall.
2. Would we find reverse faults in a compressional regime or tensional
regime, and why?
a. Compressional regime because the plates are being pushed
together and the hanging wall is up relative to the footwall.
3. What is the difference between a normal fault and a reverse fault?
a. A normal fault is a sliding fault. A reverse fault has a fault scarp, just
the opposite motion of a normal fault.
4. What is the difference between anticlines and synclines?
a. Anticlines are folds in which each half of the fold dips away
form the crest. Synclines are folds in which each half of the
fold dips toward the trough of the fold.
5. What is the difference between in the rock unit age relationship between
domes and basins?
a. The youngest rocks are found near the center of a basin with
the oldest rocks at the flanks. A domed structure is the
opposite. The oldest rocks form from the core.
6. Describe a strike slip fault. Provide an example of one.
a. A strike slip fault is where the earth moves parallel to the
fracture. Transform faults are an example of strike slip faults.
One that comes to mind would be the San Andreas Fault in
California.
7. Of the previously described structures, which are the result of brittle
deformation?
a. Strike slip fault, Normal Faults, and reverse Faults
8. Of the previously described structures, which are the result of ductile
deformation?
This study source was downloaded by 100000824368823 from CourseHero.com on 09-20-2022 10:28:19 GMT -05:00 [Show Less]