Exam 19: Shorelines

Which type of microfossils have tests (hard parts) made of calcium carbonate and are useful as index fossils as well as for measuring past sea temperatures and climates since the Cretaceous?

(Multiple Choice)

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Question 41

Which organisms were benthic (bottom dwellers) and extensively used as index fossils respectively for the Mesozoic and Lower Paleozoic?

(Multiple Choice)

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Question 42

Consider the names of the eras in the geologic time scale. What is meant by "zoic"?

(Multiple Choice)

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Question 43

Which two Paleozoic, geologic, time-scale periods used in the United States are combined into the Carboniferous period in Europe and elsewhere?

(Multiple Choice)

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Question 44

An unconformity is a buried _______________.

(Multiple Choice)

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Question 45

In radiometric dating, an unstable radioactive isotope is called_______ .

(Multiple Choice)

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Question 46

Assume that human recorded history can be stretched back to 4600 years before the present. This is approximately what fraction of geologic time?

(Multiple Choice)

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Question 47

Which of the following is the name of an eon in the geologic time scale?

(Multiple Choice)

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Question 48

The name of which geologic era means "ancient life"?

(Multiple Choice)

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Question 49

The radioactive isotopes uranium- 238, uranium- 235, and thorium- 232 eventually decay to different, stable, daughter isotopes of ____________.

(Multiple Choice)

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Question 50

Which of the following is not a very long- lived, radioactive isotope?

(Multiple Choice)

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Question 51

Of an original amount of radioactive parent isotope, 25% remains and 75% has decayed. How many half- lives have elapsed?

(Multiple Choice)

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Question 52

Which geologic eon denotes the first 800 million years of Earth history?

(Multiple Choice)

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Question 53

What kind of materials can be reliably dated by the C- 14 method?

(Multiple Choice)

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Question 54

The study of paleontology focuses on_________ ?

(Multiple Choice)

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Question 55

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

(Multiple Choice)

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Question 56

How can radiometric dating yield reliable values for the ages of minerals, rocks and some fossils?

(Multiple Choice)

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Question 57

Sandstone strata and a mass of granite are observed to be in contact. Which of the following statements concerning their relative age is geologically correct ?

(Multiple Choice)

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Question 58

Which of the following geologic observations would not bear directly on working out the sequence of geologic events in an area?

(Multiple Choice)

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(70)

Question 59

Pieces of one rock contained within another are called and give evidence that that smaller rock is __the main body.

(Multiple Choice)

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(94)

Question 60

Showing 41 - 60 of 66

Which type of microfossils have tests (hard parts) made of calcium carbonate and are useful as index fossils as well as for measuring past sea temperatures and climates since the Cretaceous?

Which organisms were benthic (bottom dwellers) and extensively used as index fossils respectively for the Mesozoic and Lower Paleozoic?

Consider the names of the eras in the geologic time scale. What is meant by "zoic"?

Which two Paleozoic, geologic, time-scale periods used in the United States are combined into the Carboniferous period in Europe and elsewhere?

An unconformity is a buried _______________.

In radiometric dating, an unstable radioactive isotope is called_______ .

Assume that human recorded history can be stretched back to 4600 years before the present. This is approximately what fraction of geologic time?

Which of the following is the name of an eon in the geologic time scale?

The name of which geologic era means "ancient life"?

The radioactive isotopes uranium- 238, uranium- 235, and thorium- 232 eventually decay to different, stable, daughter isotopes of ____________.

Which of the following is not a very long- lived, radioactive isotope?

Of an original amount of radioactive parent isotope, 25% remains and 75% has decayed. How many half- lives have elapsed?

Which geologic eon denotes the first 800 million years of Earth history?

What kind of materials can be reliably dated by the C- 14 method?

The study of paleontology focuses on_________ ?

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

How can radiometric dating yield reliable values for the ages of minerals, rocks and some fossils?

Sandstone strata and a mass of granite are observed to be in contact. Which of the following statements concerning their relative age is geologically correct ?

Which of the following geologic observations would not bear directly on working out the sequence of geologic events in an area?

Pieces of one rock contained within another are called and give evidence that that smaller rock is __the main body.

An Introduction to Geology and Plate Tectonics

Minerals: the Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earths Interior

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Mineral and Energy Resources

Filters

Exam 19: Shorelines

Which type of microfossils have tests (hard parts) made of calcium carbonate and are useful as index fossils as well as for measuring past sea temperatures and climates since the Cretaceous?

Which organisms were benthic (bottom dwellers) and extensively used as index fossils respectively for the Mesozoic and Lower Paleozoic?

Consider the names of the eras in the geologic time scale. What is meant by "zoic"?

Which two Paleozoic, geologic, time-scale periods used in the United States are combined into the Carboniferous period in Europe and elsewhere?

An unconformity is a buried _______________.

In radiometric dating, an unstable radioactive isotope is called_______ .

Assume that human recorded history can be stretched back to 4600 years before the present. This is approximately what fraction of geologic time?

Which of the following is the name of an eon in the geologic time scale?

The name of which geologic era means "ancient life"?

The radioactive isotopes uranium- 238, uranium- 235, and thorium- 232 eventually decay to different, stable, daughter isotopes of ____________.

Which of the following is not a very long- lived, radioactive isotope?

Of an original amount of radioactive parent isotope, 25% remains and 75% has decayed. How many half- lives have elapsed?

Which geologic eon denotes the first 800 million years of Earth history?

What kind of materials can be reliably dated by the C- 14 method?

The study of paleontology focuses on_________ ?

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

How can radiometric dating yield reliable values for the ages of minerals, rocks and some fossils?

Sandstone strata and a mass of granite are observed to be in contact. Which of the following statements concerning their relative age is geologically correct ?

Which of the following geologic observations would not bear directly on working out the sequence of geologic events in an area?

Pieces of one rock contained within another are called ______and give evidence that that smaller rock is ________the main body.

An Introduction to Geology and Plate Tectonics

Minerals: the Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earths Interior

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Mineral and Energy Resources

Filters

Pieces of one rock contained within another are called and give evidence that that smaller rock is __the main body.