Lab 2. General Quantitative Methods in Geology (3). Topography, use of contour l

Question

Lab 2. General Quantitative Methods in Geology (3). Topography, use of contour lines, measurements on maps, etc. Task 1. Use topographic map (see separate sheet) to answer questions: 1. Estimate elevation of the following points (within 5-10 feet accuracy): b. d. g- h. 2. Which direction (north, east, south, west) N. Peter's Kill river flows How did you find this out? 3. Which direction (north, east, south or west) flows the river next to location b? How did you find this out? 4. Calculate the gradient between locations b and d on the map. Gradient is a ratio between over run: elevation difference (range) and the length (distance) between two locations, i.e. rise 5. Which side of the hill top (location d) is steeper and why? 6 What is RF scale of this map? (use supplied ruler to estimate): 1:

Explanation / Answer

Elevation of points:

a)1000ft

b)300ft

c)800 ft

d)1200ft

e)400 ft

f)900ft

g)700ft

h)800 ft

2.kill river flowing in south direction.

(.by looking at contours(down stream direction)

3,river next to b flowing in west direction.(downstream and stream flow direction)

4.gradient between a nd b 0,3 aprox

5.point d is steeper in East direction

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