a. Use a pencil to draw neat, solid lines to correlate the rock units below. Northern Arizona Eastern California Trilobite Index Fossil b. The dashed line indicates a fossil trilobite zone used to mark the middle Cambrian. Using the position of this timeline, determine which direction the shoreline transgressed-west to east or east to west? Explain your answer.

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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Do, a,b and c

a. Use a pencil to draw neat, solid lines to correlate the rock units below.
Eastern California
Northern Arizona
Trilobite Index Fossil
-
b. The dashed line indicates a fossil trilobite zone used to mark the middle Cambrian. Using the position
of this timeline, determine which direction the shoreline transgressed-west to east or east to west?
Explain your answer.
c. Why is the rock sequence thicker in California and thinner in Arizona?
Transcribed Image Text:a. Use a pencil to draw neat, solid lines to correlate the rock units below. Eastern California Northern Arizona Trilobite Index Fossil - b. The dashed line indicates a fossil trilobite zone used to mark the middle Cambrian. Using the position of this timeline, determine which direction the shoreline transgressed-west to east or east to west? Explain your answer. c. Why is the rock sequence thicker in California and thinner in Arizona?
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