82) Which of the following is thought to have enriched ocean floor sediments with rare-earth
elements?
A) Clathrate formation
B) Deep-sea hotsprings
C) Groundwater leaching
D) Nodule and crust creation
E) Sea floor methane seeps
Answer: B
Diff: 1
Bloom’s Taxonomy: Remembering/Understanding
Section: 4.7 What Resources Do Marine Sediments Provide?
Essent’l Concept: 4.7 Identify the various resources that marine sediments provide
OSLP: 6 The ocean and humans are inextricably interconnected.
Global Sci Out: 5
4.3 Essay Questions
1) List and describe the four types of marine sediments.
Bloom’s Taxonomy: Remembering/Understanding
Section: 4.1 How Are Marine Sediments Collected and What Historical Events Do They
Reveal?
Essent’l Concept: 4.1 Demonstrate an understanding of how marine sediments are collected and
what historical events they reveal
OSLP: 1 The Earth has one big ocean with many features.
2) Discuss the sources of biogenous sediments.
Bloom’s Taxonomy: Remembering/Understanding
Section: 4.3 What Are the Characteristics of Biogenous Sediment?
Essent’l Concept: 4.3 Describe the characteristics of biogenous sediment
OSLP: 5 The ocean supports a great diversity of life and ecosystems.
31
3) Compare and contrast neritic and pelagic sediment deposits.
Bloom’s Taxonomy: Remembering/Understanding
Section: 4.6 How Are Pelagic and Neritic Deposits Distributed?
Essent’l Concept: 4.6 Specify how the distribution of pelagic and neritic deposits is determined
by proximity to sediment sources and mechanisms of transport
OSLP: 1 The Earth has one big ocean with many features.
4) Create a table detailing the four types of marine sediments and their source (parent) material.
Bloom’s Taxonomy: Remembering/Understanding
Section: 4.1 How Are Marine Sediments Collected and What Historical Events Do They
Reveal?
Essent’l Concept: 4.1 Demonstrate an understanding of how marine sediments are collected and
what historical events they reveal
OSLP: 1 The Earth has one big ocean with many features.
5) How does the analysis of marine sediments provide information about the climate of the
ancient Earth?
Bloom’s Taxonomy: Remembering/Understanding
Section: 4.1 How Are Marine Sediments Collected and What Historical Events Do They
Reveal?
Essent’l Concept: 4.1 Demonstrate an understanding of how marine sediments are collected and
what historical events they reveal
OSLP: 1 The Earth has one big ocean with many features.
32
6) List the particle names and corresponding grain size, from smallest to largest, using the
Wentworth scale of grain size.
Bloom’s Taxonomy: Remembering/Understanding
Section: 4.2 What Are the Characteristics of Lithogenous Sediment?
Essent’l Concept: 4.2 Describe the characteristics of lithogenous sediment
7) How is the carbonate compensation depth (CCD) related to the worldwide distribution of
calcareous oozes?
Bloom’s Taxonomy: Remembering/Understanding
Section: 4.3 What Are the Characteristics of Biogenous Sediment?
Essent’l Concept: 4.3 Describe the characteristics of biogenous sediment
OSLP: 5 The ocean supports a great diversity of life and ecosystems.
8) Compare and contrast marine environments that favor the deposition of siliceous and
calcareous oozes.
Bloom’s Taxonomy: Remembering/Understanding
Section: 4.3 What Are the Characteristics of Biogenous Sediment?
Essent’l Concept: 4.3 Describe the characteristics of biogenous sediment
OSLP: 5 The ocean supports a great diversity of life and ecosystems.
33
9) Compare and contrast how neritic and pelagic sediment deposits are distributed.
Bloom’s Taxonomy: Remembering/Understanding
Section: 4.6 How Are Pelagic and Neritic Deposits Distributed?
Essent’l Concept: 4.6 Specify how the distribution of pelagic and neritic deposits is determined
by proximity to sediment sources and mechanisms of transport
OSLP: 1 The Earth has one big ocean with many features.
34
4.4 Visual Questions
1)
Which of the following sediments are Biogenous?
A) Abyssal clay
B) Radiolarian & diatom
C) Radiolarian & calcareous ooze
D) Radiolarian, diatom, & calcareous ooze
E) Radiolarian, diatom, calcareous ooze, & continental
Bloom’s Taxonomy: Applying/Analyzing
Section: 4.6 How Are Pelagic and Neritic Deposits Distributed?
Essent’l Concept: 4.6 Specify how the distribution of pelagic and neritic deposits is determined
by proximity to sediment sources and mechanisms of transport
OSLP: 1 The Earth has one big ocean with many features.
Global Sci Out: 3
35
2)
Which of the following sediments contain at least 30% of the hard remains of calcareous-
secreting organisms?
A) Abyssal clay
B) Radiolarian
C) Calcareous ooze
D) Radiolarian & diatom
E) Diatom & calcareous ooze
Bloom’s Taxonomy: Applying/Analyzing
Section: 4.6 How Are Pelagic and Neritic Deposits Distributed?
Essent’l Concept: 4.6 Specify how the distribution of pelagic and neritic deposits is determined
by proximity to sediment sources and mechanisms of transport
OSLP: 1 The Earth has one big ocean with many features.
Global Sci Out: 3
36
3)
Which of the following sediments are produced in areas of high primary productivity?
A) Abyssal clay
B) Radiolarian
C) Diatom
D) Radiolarian & diatom
E) Diatom & calcareous ooze
Bloom’s Taxonomy: Applying/Analyzing
Section: 4.6 How Are Pelagic and Neritic Deposits Distributed?
Essent’l Concept: 4.6 Specify how the distribution of pelagic and neritic deposits is determined
by proximity to sediment sources and mechanisms of transport
OSLP: 1 The Earth has one big ocean with many features.
Global Sci Out: 3
37
4)
What is the expected calcium carbonate content in modern surface sediments at a latitude of 0
degrees and a longitude of 120 degrees west?
A) Less than 50% by weight
B) 50%-80% by weight
C) Greater than 80% by weight
Bloom’s Taxonomy: Applying/Analyzing
Section: 4.3 What Are the Characteristics of Biogenous Sediment?
Essent’l Concept: 4.3 Describe the characteristics of biogenous sediment
38