Shown on the next page is a topographic map with a contour interval of 2 feet. The distance scale is shown at he bottom. The dots labeled A, B and C are boreholes. Soil information for these boreholes is given in Table 1. (a) What is the elevation difference (in feet) between borehole B and C (b) What is the distance (in feet) between boreholes A and B.

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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60
40-
50
OB
AO
30
300 ft
Transcribed Image Text:60 40- 50 OB AO 30 300 ft
Shown on the next page is a topographie map with a contour interval of 2 feet. The distance scale is shown at
the bottom. The dots labeled A, B and C are boreholes. Soil information for these boreholes is given in Table 1.
(a) What is the elevation difference (in feet) between borehole B and C
(b) What is the distance (in feet) between boreholes A and R
(c) Draw a topographie profile from borehole B to C using a vertical exaggeration of 100:1 Please be sur
to label your scales and draw neatly!
sure
Table 1 - Borehole soil properties
% gravel
% passing
Plasticity Group
symbol
SM
Borehole
sieve no. 200
index
5%
40%
15
В
35%
5%
5
GP
C
0%
95%
40
ОН
Transcribed Image Text:Shown on the next page is a topographie map with a contour interval of 2 feet. The distance scale is shown at the bottom. The dots labeled A, B and C are boreholes. Soil information for these boreholes is given in Table 1. (a) What is the elevation difference (in feet) between borehole B and C (b) What is the distance (in feet) between boreholes A and R (c) Draw a topographie profile from borehole B to C using a vertical exaggeration of 100:1 Please be sur to label your scales and draw neatly! sure Table 1 - Borehole soil properties % gravel % passing Plasticity Group symbol SM Borehole sieve no. 200 index 5% 40% 15 В 35% 5% 5 GP C 0% 95% 40 ОН
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