-- ·009-- 100m 300, 400-- 42 Above is a topographic map. The upper surface of a sandstone layer outcrops at locations A, B, and C. A vertical drill hole at location intersects the lower surface of the sandstone at a depth of 100m. Elevation at site D on land surface is 650m. a. Predict the line of outcrop for the upper surface of the sandstone and the line of outcrop for the lower surface of the sandstone. Sandstone outcrops between them. Draw the outcrop of the sandstone on the topographic map. Draw it manually (4') b. Determine the dip and dip direction of the sandstone layer. (4¹) c. Determine the vertical distance from the land surface to the upper surface of sandstone at site "D". (4") d. Determine the shortest distance from the land surface at site "D" to the upper surface of the sandstone. (3¹) e. Draw a cross section along XX' to show the topography and the sandstone layer. Draw it manually. (5')
-- ·009-- 100m 300, 400-- 42 Above is a topographic map. The upper surface of a sandstone layer outcrops at locations A, B, and C. A vertical drill hole at location intersects the lower surface of the sandstone at a depth of 100m. Elevation at site D on land surface is 650m. a. Predict the line of outcrop for the upper surface of the sandstone and the line of outcrop for the lower surface of the sandstone. Sandstone outcrops between them. Draw the outcrop of the sandstone on the topographic map. Draw it manually (4') b. Determine the dip and dip direction of the sandstone layer. (4¹) c. Determine the vertical distance from the land surface to the upper surface of sandstone at site "D". (4") d. Determine the shortest distance from the land surface at site "D" to the upper surface of the sandstone. (3¹) e. Draw a cross section along XX' to show the topography and the sandstone layer. Draw it manually. (5')
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
Problem 1LR
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·009--
100m
300,
400--
42
Above is a topographic map. The upper surface of a sandstone layer outcrops at locations A, B, and C. A vertical drill hole at location intersects the lower surface of the
sandstone at a depth of 100m. Elevation at site D on land surface is 650m.
a. Predict the line of outcrop for the upper surface of the sandstone and the line of outcrop for the lower surface of the sandstone. Sandstone outcrops between them. Draw the
outcrop of the sandstone on the topographic map. Draw it manually (4')
b. Determine the dip and dip direction of the sandstone layer. (4¹)
c. Determine the vertical distance from the land surface to the upper surface of sandstone at site "D". (4")
d. Determine the shortest distance from the land surface at site "D" to the upper surface of the sandstone. (3¹)
e. Draw a cross section along XX' to show the topography and the sandstone layer. Draw it manually. (5')
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