Shown on the next page is a topographic map with a contour interval of the bottom. The dots labeled A, B and C are boreholes. Soil information for these boreholes is given in Table 1. tance sca is sho (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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Shown on the next page is a topographic 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 B
(c) Draw a topographic profile from borehole B to C using a vertical exaggeration of 100:1 Please be sure
to label your scales and draw neatly!
Table 1 - Borehole soil properties
Plasticity Group
symbol
SM
Borehole
% gravel
% passing
sieve no. 200
index
5%
40%
15
35%
5%
5
GP
0%
95%
40
OH
ABC
Transcribed Image Text:Shown on the next page is a topographic 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 B (c) Draw a topographic profile from borehole B to C using a vertical exaggeration of 100:1 Please be sure to label your scales and draw neatly! Table 1 - Borehole soil properties Plasticity Group symbol SM Borehole % gravel % passing sieve no. 200 index 5% 40% 15 35% 5% 5 GP 0% 95% 40 OH ABC
60
聯
40
50
OB
AO
30
300 ft
Transcribed Image Text:60 聯 40 50 OB AO 30 300 ft
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