Chapter 10 Chapter 6 review questions GEOLOGY 2 TEST 1
Chapter 10 Chapter 6 review questions GEOLOGY 2 TEST 1 1122k
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This 2 page Study Guide was uploaded by Vraj Patel on Monday February 1, 2016. The Study Guide belongs to 1122k at Georgia State University taught by Hidalgo Odio in Spring 2016. Since its upload, it has received 72 views. For similar materials see Introductory Geosciences II in Geology at Georgia State University.
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Date Created: 02/01/16
Geology 2 quiz 2 Chapter 10 1. Before the development of isotopic dating methods, scientist estimated the age of the earth by: a. Counting generations in bible, comparing rates of change on Earths surface today with the geologic record, calculating the cooling history of the Earth, estimating evolution rates from the fossil record. 2. Which passage best defines the principle of Uniformitarianism a. Earth processes observed today also operated in the past at about the same rates 3. What does an unconformity in a rock sequence tell us a. There is a gap in the geologic record 4. Which of the following is not helpful in for relating stratigraphic formations between nearby regions? a. Layer thickness 5. The Largest Subdivision of geologic time is called a. Eon 6. The geologic time scale was originally defined on the basis of a. Fossil succession 7. Clastic sedimentary rocks can be directly dated using isotopic dating a. False 8. Which of the following does NOT provide a numerical date? a. Measuring thicknesses of sedimentary layers 9. How do we know that Earth is 4.57 Billion years old? a. Dating meteorites 10. Why do we have no rocks that date to earths initial formation a. The earliest rocks are not preserved Geology Quiz 1 1. Where do sedimentary rocks form? a. Upper Crust 2. Which of the following is NOT one of the major classes of sedimentary rocks? a. Intrusive 3. Formation of a clastic sedimentary rock Involves Five stages. Which of the following describes Lithification a. Compaction and cementation of loose particles to form solid rock 4. As sediments is transported downstream, away from its point of origin, the particles become? a. Smaller , rounder, better sorted, dominantly resistant minerals 5. Rocks are formed dominantly from the calcium carbonates of shell marine organisms are classified as __________ and called ________ a. Biochemical; Limestone 6. A distinctive sequence of strata that can be traced across a large region is called a. Formation 7. Ripple marks, cross beds, graded beds, and mud cracks are all examples of a. Sedimentary structures 8. Ripple marks, dunes, and cross bedding are useful indicators of a. Current direction 9. Which of the following is NOT a useful indicator of depositional environment? a. Source rocks 10. Red Beds composed of poorly sorted standstone and conglomerates, cemented by rustlike iron-oxide minerals, most likey formed in what depositional environment? a. Mountain front alluvial fan
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