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Field Mapping Question

This document contains sample questions about conducting geological field mapping. It asks about important first steps like checking maps, orienting oneself, and safety precautions when using tools. It also asks about techniques for measuring strike, dip, distance, and attitudes in the field without advanced instruments. Key identification factors are discussed, such as using grain relationships to determine rock types or structural features.

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166 views1 page

Field Mapping Question

This document contains sample questions about conducting geological field mapping. It asks about important first steps like checking maps, orienting oneself, and safety precautions when using tools. It also asks about techniques for measuring strike, dip, distance, and attitudes in the field without advanced instruments. Key identification factors are discussed, such as using grain relationships to determine rock types or structural features.

Uploaded by

daanaahishmaels
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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GEOLOGICAL FIELD MAPPING SAMPLE QUESTIONS

1. What is the first thing to do when you spot an outcrop in the field?
2. Describe how you checked the reliability of the topographic map (base map) you
used during the geological field mapping exercise? If the base map was found to be
less reliable, how did you correct for deviation?
3. How did you orient yourself in the field during the geological field mapping exercise?
4. Why are samples of weathered outcrops not taken in the field to the laboratory for
further studies?
5. What safety precaution is taken when using the geological hammer?
6. What would you take into consideration in selecting an item to be used as a scale
when taking pictures of an outcrop or any structural feature in the field?
7. Describe how you would measure the distance between two points in the field without
using any measuring instrument e.g., tape measure, etc.
8. What is the difference between the quadrant and azimuth types of geological
compasses?
9. How could grain to grain relationship as considered in describing the texture of a
rock be used to tell whether a rock is a clastic sedimentary, metamorphic,
metasediment or an intrusive igneous rock in the field?
10. What is a waypoint? What do you do to get a waypoint? What is the essence of taking
waypoints?
11. Explain explicitly, using the right-hand rule, how you measured the strike, dip and dip
direction of any structural feature of an outcrop.
12. Why would you refer to an outcrop encountered in the field as a
a. granitoid
b. metasediment
c. metavolcanic
d. volcanic rock or
e. volcaniclastic?
13. How would you tell in the field if a geological structure encountered is a fault or
joint?
14. Describe how you would measure the attitudes of a fold in the field

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