LAB 2_geologic time

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School

Montgomery County Community College *

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120

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Geology

Date

Feb 20, 2024

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docx

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Uploaded by BaronGoat4245

Lab 2 Question Sheet: Geologic Time ( pg. 167 ) GLG115: Environmental Science ACTIVITY 10.1 2. Relative dating is comparing between the 2 rocks. Numerical dating tells us the age of said rock in x number of years. ACTIVITY 10.2 1. Youngest (last) - 8 - 6 - 3 - 7 - 10 - 5 - Ace (1) - 4 - 9 Oldest (first) 2. I was not able to place 2 because it doesn’t interact with any of the other cards on the timeline. 3. Youngest - D - C - B - A Oldest ACTIVITY 10.3 1. Younger 2. Younger 3. Older 4. After because dike E was influenced by fault H. 5. The rock fragments from rock layers A and C in the ingenious inclusion sill B is older than the surrounding A and C layers. ACTIVITY 10.4 1. Top: Disconformity Bottom: Angular Unconformity 2. A. Angular Unconformity B. Non-conformity

ACTIVITY 10.5 1. Top: Angular unconformity Bottom: nonconformity 2. Younger 3. Fault L is younger than layer H. I used Law of Super Position. 4. Intrusion J is older than layer A and B. I used Principles of Cross-Cutting Relationships and Principles of Inclusions. 5. It’s younger than both layers. 6. Youngest (last) - I - H - K - F - E - D - L - D - C - B - A - J Oldest (first) GEOLOGIC TIME Lab Report (pg. 183) 1. Youngest (last) - N - K - I - H - G - F - L - M - E - D - C - B - A - J Oldest (first) 2. Angular unconformity. 3. Principle of Superposition 4. Principle of Cross-Cutting Relationship. 5. Fault N is younger than Igneous intrusion J because J is a form of conformity making it older than the rest of the layers.

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LAB 2_geologic time

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