Geologic map interpretation pre-lab


Instructions: All questions can be answered by reading the material in the GEOL-1031 lab book. Many questions relate to terms in bold type. When you have answered all the questions, submit your answers according to the instructions you received in lab.

1. In the state of Tennessee ________ of the exposed bedrock is igneous and metamorphic rock.
[A] about half   [B] about 3/4  [C] about 1/4   [D] less than 10%

2. The term _______ refers to the composition and texture of a rock.
[A] petrology  [B] lithology  [C] petrotype [D] lithotype

3. True [A] or False [B]: Small-scale geologic maps show both structural and topographic details.

4. Rock units on geologic maps may be indicated by:
[A] letter codes  [B] colors  [C] graphic patterns  [D] all of these

5. The rock unit known as a _______ is the preferred mapping unit for geologic quadrangles and is also the fundamental lithologic unit for naming rocks.
[A] lithotope   [B] formation   [C] group [D] bed

6. True [A] or False [B]: A graphic depiction of the vertical sequence of formations in an area is called a stratigraphic column.

7. If a rock contact on a map is shown with a dashed line, the rock contact is:
[A] not exposed   [B] partially covered   [C] well exposed

8. In undeformed rock sequences with flat topography, the youngest rock units crop out in hilly areas.  These exposures are called ________.
[A] outliers  [B] inliers  [C] drumlins  [D] erosional remnants [E] both A and D

9. Bedrock consisting of _______ will be  more durable than ________ bedrock.
[A] granite; sandstone   [B] limestone; sandstone  [C] sandstone; granite  [D] shale; sandstone

10. Due to Africa docking with North America, Eastern Tennessee experienced extensive and intense deformation during the ______ era.
[A] Early Paleozoic     [B] Middle Paleozoic [C] Late Paleozoic   [D] Mesozoic



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