Which of the following scenarios would best indicate that a thrust fault is present at a location?
A) The hanging wall of the fault has slipped down.
B) Two parts of the same rock have been horizontally displaced by 20 feet.
C) Cambrian-aged rocks have been shoved on top of Jurassic-aged rocks.
D) The crust has lengthened, allowing a graben to slip down and create a pull-apart basin.
Answer: C
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The elevation of the surface of a lake is a good indication of the level of the water table at that location. Assuming that the elevation of a lake is half a contour interval lower than the contour line closest to the shore, determine the elevations of the following lakes.
The following questions are based on Map T-8, the “Putnam Hall, Florida” quadrangle (scale 1:24,000; contour interval 10 feet). This map shows a portion of northeastern Florida underlain by limestone 129°39'10"N, 81°57'15"W). Here the water table (the upper level of groundwater) is close to the surface. (a) Slipper Lake _______ feet (b) Lake Green Sills _______ feet (c) Whirlwind Lake _______ feet (d) Trotting Pond _______ feet (e) Lake Lucy _______ feet (f) Trout Lake _______ feet Additional question: 1. Based on the lake levels, and noting the levels of other lakes and swamps, does it appear that the water table in this region is level or sloping? If sloping, in which direction?
True or False: Minerals form under a narrow range of physical and chemical conditions
Indicate whether this statement is true or false.
Where would it be most likely that you would find internal waves in the ocean?
a) At the pycnocline b) At the base of the mixed layer c) At the ocean surface d) At the ocean bottom e) At the halocline
What part of North America contains the oldest exposed rocks?
A. the Appalachian Mountains B. western North America C. the east coast of Canada and nearby parts of the U.S. D. Alaska and western Canada E. the Canadian Shield