FREE EARTH SCIENCE AND STUDY GAMES ABOUT CWI

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FREE EARTH SCIENCE AND STUDY GAMES ABOUT CWI

GEOL EXAM 3 EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -38 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Sandstone strata and a mass of granite are observed to be in contact. Which of the following statements is correct geologically?

Answer:

The granite is older if the sandstone contains pebbles of the granite.Question 2: Which of the following lists the rocks in the order of increasing grain size and increasing grade of metamorphism?

Answer:

slate, phyllite, schist Question 3: Visualize five, horizontal, sedimentary strata exposed in a cliff or canyon wall identified by consecutive numbers, 1 being the lowest bed and 5 being the highest. Which of the following statements concerning the strata are true?

Answer:

beds 1 and 3 are older than bed 4

Question 4: A syncline is ____.

Answer:

a fold in which the strata dip toward the axis Question 5: ____ refers to the process of fossilization where the internal cavities and pores of the orginal organism are filled with precipitated mineral matter.

Answer:

Petrification Question 6: Brittle deformation would be favored over plastic deformation in which of the following conditions?

Answer:

shallow depths

Question 7: Which one of the following best characterizes tsunamis?

Answer:

They have relatively small amplitudes compared to their very long wavelengths.Question 8: Which of the following would exhibit sheared and mechanically fragmented rocks?

Answer:

fault movements at shallow depths

Question 9: _____ forms from the metamorphism of limestone or dolostone.

Answer:

Marble

Question 10: ____ is typically formed by metamorphism of a sandstone.

Answer:

Quartzite Question 11: What fundamental concept states that in a horizontal sequence of conformable sedimentary strata, each higher bed is younger than the bed below it?

Answer:

law of superposition

Question 12: The ____ in California is the boundary between the North American and Pacific plates.

Answer:

San Andreas strike-slip fault Question 13: _____ is an erosional contact between tilted, older strata below and horizontal, younger strata above.

Answer:

An angular unconformity Question 14: In a(n) ____ fault, the hanging wall block move up with respect to the footwall block.

Answer:

reverse Question 15: Which of the following denotes the divisions of the geologic time scale in correct order of decreasing lengths of time beginning with the longest time interval and ending with the shortest?

Answer:

eon, era, period, epoch

Question 16: P waves ____

Answer:

are faster than S waves and surface waves

Question 17: A deeply eroded, structural basin would exhibit ____.

Answer:

strata oriented in roughly circular, outcrop patterns

Question 18: What is the major source of heat for contact metamorphism?

Answer:

heat from a nearby magma body

Question 19: Which of the following is an essential characteristic of an index fossil?

Answer:

the organism only lived for a short period of geologic time Question 20: What are the smaller magnitude quakes that follow a major earthquake?

Answer:

aftershocks

Question 21: A horst is ____.

Answer:

an uplifted block bounded by two normal faults Question 22: The mountains and valleys of the Basin and Range Province of the western United States formed in response to ____.

Answer:

tensional stresses and normal-fault movements Question 23: ____ in layered sedimentary rocks are evidence for horizontal compression and shortening.

Answer:

Tight folds

Question 24: What is the age of the Earth accepted today?

Answer:

4.5 billion years

Question 25: A thrust fault is best described as ____.

Answer:

a low-angle, reverse fault Question 26: The Great Rift Valley of East Africa would most likely be characterized by ____.

Answer:

mainly normal faulting as East Africa begins to fragment