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TERM EXAMINATION IN PHYSICAL GEOLOGY. B.J.C. MAY 31,1946, 1. a) In what respects do wind deflation and wind abrasion agree? now are they different? b) Of what materials may a dune be made? Just how does a dune travel? 2. a)Vihat is meant by the term "sea"? (b) Kake a complete profile drawing of the depth zones out beneath the sea. (c) Why on a given coast are there two high tides every 24 hours? 3. a)How is an offshore bar or "barrier beach" built? lb; What four types of shorelines are there? Explain each briefly.(c) Name types of coral reefs. 4. a( By what processes (named) do sediments become coherent rocks? (b) What markings characterize sed. rocks? (c) Define or describe a sedimentary formation. Name two examples. 5. a) Copy blackboard drawing and give the story of its changes in chronological order.Label drawing carefully,, . ( b) What are the colors of sede rocks due to? Give examples. (c) What conditions are necessary for fossils to form and be preserved? 6. a) Define igneous rock, (b) What kinds (names) of volcanic rock are made from pyroclastic material? (c) Name the igneous rock textures. 7. a) Discuss the bases for classifying igneous rocks, lb; i*ame the kinds of volcanic cones or edifices.Give one example of each kind.ose Idaho examples where possible. P. a )Give a brief but accurate history of tot. toazama and present Crater bake, (b) Pumaroles & hot springs:1.Gases emitted. 2.Metallic deposits (sometimes) 3.Non-metallic deposits.4.Are they indications of increasing or declining volcanic activity? 9. a) Define diastrophism.(b) What classes of structural features are imposed upon bedrock by diastrophism? (c) What are joints in sed, rocks?Two causes? 10. a) What causes of joints in igneous rocks? (b) Make a diagram to show the components of motion in a normal fault (oblique kind;.Label the drawing c What kind of faultig repeats the beds on the outcrop? offsets i 11 (a) State four field evidences indicating faults beneath, (b) What are two recognized causes of earthquakes, (c) What initiates a submarine earthquake and resulting tsunamis? 12. a) What sets of earthquake waves are there in and upon the earth? What speeds do they have? (b) What safeguards against earthquake damage can be sustRested? (c) What geologic work,if any,is done by earthquakes? 13. ROCK METAMORPHISM: a) Means what? (b)What that is new is produced? (c)What factors do this work? (d)What kinds of rocks worked upon? (e)What kinds of meatmorphism? 14. (a) What are the metamorphic equivalents of the following rocks?: Pure white limestone; impure limestone; coal(softj; silicate rock; sandstone;shale or clay;granite;basalt. (b)What is a mylonite? How caused?
|Identifier||MSS 011 Box 4 Folder 22|
|Date||May 31, 1946|
|Photographer||Edward F. Rhodenbaugh|
|Description||An exam in Physical Geology for Boise Junior College Students.|
|Collection||Edward F. Rhodenbaugh Collection, MSS 11|
|Contributing institution||Boise State University Library, Special Collections|
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