Lab 3 Worksheet structure spring 2024 copy copy
docx
keyboard_arrow_up
School
Lamar University *
*We aren’t endorsed by this school
Course
8BB
Subject
Geology
Date
Apr 3, 2024
Type
docx
Pages
6
Uploaded by alexandria2lasae
Lab 3 Worksheet Geologic Structures (50 points, 50 possible answers)
Name Alexandria Mclaurin (-2 points if missing)
Date 02/25/2024
PDFs AND HANDWRITTEN SCANS WILL NOT
BE GRADED. ANSWERS MUST BE TYPED IN. ONLY THINGS YOU NEED TO TAKE AN IMAGE OF MUST BE HANDWRITTEN
Use your lab book and PowerPoints as needed to answer all questions in each of the 2 parts. Please explain everything in your own words.
Geologic Structures
Part 1
1.
In a tensional regime, would we find more normal or more reverse faults, and why?
a. We would find more normal faults because they are identified by the direction of movement for the downward hanging wall and the upward foot wall. 2.
Would we find reverse faults in a compressional regime or tensional regime, and why?
a. Compressional regime because they’re identified by the direction of movement of the upward hanging wall and the downward foot wall.
3.
What is the difference between a normal fault and a reverse fault in terms of movement of the hanging wall and footwall?
a.
For normal fault the hanging wall is upward and the foot wall is downward while the reverse fault is the opposite of the normal 4.
What is the difference between anticlines and synclines?
a.
Anticlines is an upwardly arched fold, shaped like a A, while synclines is a downwardly bent fold, shaped like a U.
5.
What is the difference in the rock unit age relationship between domes and basins?
a.
Domes are where older rocks are in the middle while the basins have younger rocks in the middle instead. 6.
Describe a strike slip fault. Provide an example of one.
a.
Strike slip faults are referred to as left lateral or right lateral fault. A example is the san andreas fault.
7.
What is the difference between a paraconformity and a disconformity?
a.
Paraconformity is a buried surface of non deposition while a disconformity is a buried surface of erosion.
8.
Explain what is different about a nonconformity.
a.
Nonconformity is a buried surface of erosion that be,ones to different rock families.
9.
In the diagrams below
, identify each structure.
a.
Dip slip faults b.
Thrust fault c.
Strike slip fault d.
Vertical fault e.
Plunging synclines f.
Horizontal strata
g.
domes h.
synclines
i.
normal fault Part 2
1.
Use Exercise 6.2 to measure the strike and dips. Type your answers into the table below. (12 points) (
be sure you review the lab ppt before doing this part
).
Diagram
Strike
Dip direction
A
N
E
B
E
E
C
N45E
SE
D
N25E
NW
E
N85E
SE
F
N5W
NE
G
S35E
W
H
E32W
SW
I
N45W
SW
J
N16S
SE
K
E10W
S
L
E25W
SW
1.
What type of fault is seen in the image below? (aerial view)
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help
a.
b.
Strike slip fault
2.
What type of fold is seen in the image below? (side view)
a.
b.
Anticline
3.
What type of fault is seen in the image below? (side view)
a.
b.
dip slip fault
4.
What type of fault is seen in the image below? (side view)
a.
b.
Reverse slip faults
5.
What type of fold is seen in the image below? (side view)
a.
b.
synclines
Part 3
Use Exercise 6.3 (pages 125 and 126) to sketch the missing parts of all 16 of the block diagrams
. Use the images in chapter 6 to guide you. DO NOT waste valuable time decorating the units like they are in the book. Take a digital image of your work and
paste it in this worksheet or as a separate document. (16 points) Submit as digital image of the ENTIRE page, including ALL margins. Your name and date must be in ink in the location shown below for points. Only one diagram on each page
needs your name. If you make a mistake on your diagrams, DO NOT
use white out or scribble the error out of legibility. Any whiteout or obliterating scribbles found on any part of the map/diagram will be an automatic zero
for this part of the lab.
On page 125 On page 126
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help