-C' G' G- Rock Unit Geologic Age Key B = Cretaceous Period E = Permian Period J = Silurian Period M = Cambrian Period %3D A Igneous intrusion u Contact metamorphism 19. Which happened first? a. formation of rock layer A b. formation of rock layer K c. Intrusion of rock L d. Metamorphism of parts of rock layer J

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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Question
C-
-C'
-G'
G-
Rock Unit Geologic Age
B = Cretaceous Period
E = Permian Period
J = Silurian Period
M = Cambrian Period
Key
A Igneous intrusion
ww Contact metamorphism
19. Which happened first?
a. formation of rock layer A
b. formation of rock layer K
c. Intrusion of rock L
d. Metamorphism of parts of rock layer J
20. Which statement is true about the relative age of the rock layers shown in the
illustration?
a. There is a missing rock layer in between B and D.
b. The tilting of rock layer E and F happened before the formation of rock layer G.
c. G is older than rock L.
d. All of the above is correct.
Transcribed Image Text:C- -C' -G' G- Rock Unit Geologic Age B = Cretaceous Period E = Permian Period J = Silurian Period M = Cambrian Period Key A Igneous intrusion ww Contact metamorphism 19. Which happened first? a. formation of rock layer A b. formation of rock layer K c. Intrusion of rock L d. Metamorphism of parts of rock layer J 20. Which statement is true about the relative age of the rock layers shown in the illustration? a. There is a missing rock layer in between B and D. b. The tilting of rock layer E and F happened before the formation of rock layer G. c. G is older than rock L. d. All of the above is correct.
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