Exam 5: Ocean Sediments

Paleoceanography analyzes layered sedimentary deposits to trace distinctive layers while establishing the ages of these deposits.

In addition to information gained from stratigraphy, what contributed to the emergence of paleoceanography?

What was the primary way sediment was transported to North America (east coast) continental margin during the last ice age?

Which statement describes turbidites?

What characterizes deep ocean sediments?

A deep ocean ooze was discovered near Antarctica. What type is it likely to be?

What valuable commodity has yet to be commercially mined from ocean sediments?

Which is not a common particle size for most marine sediments?

Although most of biological productivity occurs close to land, a greater proportion is found in pelagic sediments.

What piece of equipment was able to facilitate the new fields of stratigraphy and paleoceanography with the data it generated?

What is not considered a disruption to the normal sorting of the neritic sediments?

What is one reason diatomaceous earth is economically valued?

What kind of information can marine microfossils not provide?

What kind of sediments are igneous rocks associated with?

What is a main source of terrigenous sediments?

Define well-sorted and poorly sorted sediments. What is expected on the deep ocean floor? Which is found close to shore? Include information about the energy associated with each and the avenues of transportation of these sediments.

Which sediment is categorized under cosmogenous sediments?

Compare the thickness of pelagic sediments in the Pacific Ocean to that of the Atlantic. What reasons account for the differences? Using information from Chapter 4, would the type of margin have an effect? Why or why not?

Approximately how much of the world's estimated oil and gas reserves can be found within the sediments of the continental margins?

Both basalt and granite are examples igneous rocks.