Cirque
Which of the following glacial features is unique to mountain glaciation?
Sediments frozen in glacial ice abrade the rock.
Which of the following best describes how striations are created?
Glaciers scrape along valley walls, knocking rock loose.
Which of the following actions would logically result in a lateral moraine?
-Sediments in till are unsorted
-Sediment in braided streams is well sorted
How does the sediment in glacial till compare to the sediment being transported by the braided streams draining away from the terminus?
-Low elevation at a high latitude
-High elevation at a low latitude
-High elevation at a high latitude
Which of the following conditions would be suitable for a glacier to form?
-Drumlin
-Esker
Which of the following depositional features form parallel to the flow of ice in a glacier?
p,s,surface
Seismic waves speeds from fastest to slowest?
(P, surface, S waves)
The S minus P interval increases as distance from the epicenter increases.
Which of the following statements about the interval between the arrival times of P and S waves (S minus P interval) is true?
3
What is the minimum number of points needed to locate the epicenter of an earthquake?
9.75 min
Using the average speed you calculated in Part B (which was 480km/min), how long would it take a P-wave to arrive in New York, NY from an earthquake that occurred in San Francisco, CA (approximately 4675 km away)?
-Displacement along the fault occurs sporadically, sometimes with many years between each displacement event.
-Displacement events can be much greater than 2 inches.
-Different locations of the fault are displaced at different times.
The average rate of movement of the North American Plate and the Pacific Plate is around 2 inches per year at the fault boundary. Which of the statements below explains how this movement is seen along the San Andreas Fault?
radial
Which stream drainage pattern would consist of a central high elevation region with several streams draining away from it in all compass directions?
drainage basin
A __________ defines the area of land that will supply water to a stream
1.6
What is the sinuosity of a stream that has a straight line distance of 2.5 miles and a stream channel length of 4 miles?
Minneapolis, MN, Denver, CO, Pittsburg, PA, Chicago, IL
Which of the following cities would have an impact of the water quality in New Orleans?
31
How many states are part of the Mississippi River watershed?
-Arkansas
-Yellowstone
-Ohio
Which of the following rivers are tributaries of the Mississippi?
-high slope, gradient
-eroision dominates
Which of the following characteristics or features describe the headwaters of a stream?
Abandoned floodplains
Which statement defines stream terrace?
-Deposition occurs at this location
-Referred to as the point bar
Which of the following statements are true about the inside of a meander curve?
The same year
If the last 100 year flood occurred in a region in the current year, when is the next 100 year flood possible?
0.2%
What is the probability (as a percentage) of a 500 year flood occurring in any given year?
tensional stress; ductile confining pressure
Which kind of directed pressure and confining pressure would result in stretching and thinning of the crust?
dome
Drawing of a hexagon composed of 6 lines, each with shorter perpendicular lines pointing outward.
What kind of structural feature would be represented by the strike and dip symbol pattern in this figure?
Strike-slip fault
A(n) __________ is a structure created when a vertical fracture allows blocks of rock to slide horizontally.
North-south
If a rock is dipping due east, what is the direction of strike?
-Basins
-Non-plunging synclines
-Plunging synclines
In which of the following geologic structures do rock beds dip toward one another?
start with lab 9 next
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