Oceanography chapter 4, 11, 13

Oolites are less than ________ millimeters in size.

2

List the particle names and corresponding grain size, from smallest to largest, using the Wentworth scale of grain size.

Clay silt granule pebble Cobble Boulder

According to the Wentworth scale, what is the particle name for a sediment that is 64 to 256 millimeters in size?

Cobble

The extinction of the dinosaurs marks the boundary between which two periods?

Cretaceous and Tertiary

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Diatoms

Which of the following is not an accessory metal present in manganese nodules?

Gold

Which of the following is a hollow steel tube with a heavy weight on top that is to collect sediment samples?

Gravity corer

Volcanic ash is considered to be which type of marine sediment?

Lithogenous

Abyssal clay is an example of which of the following sediment types?

Lithogenous Sediment

Which part of the ocean is considered to be the most climatically sensitive regions on Earth?

North Atlantic

Which of the following contains silica (SiO2)?

Radiolarians

Judge the following sentence according to the criteria given below: Microscopic biogenous ooze is common on the deep-ocean floor BECAUSE there is so little lithogenous sediment deposited at great distances from the continents that could dilute the biogenous material.

The assertion and the reason are both correct, and the reason is valid.

Judge the following sentence according to the criteria given below: Abyssal clays are commonly red-brown or buff in color BECAUSE they contain gypsum.

The assertion is correct, but the reason is incorrect.

Which of the following statements about marine sediments is correct?

They record the timing and severity of some global extinction events.

Which country initially financed the oceanographic research program?

United States

The most likely place to find abundant manganese nodules is on the ________.

abyssal plain far from a continent

The dissolution of the thick tests of foraminifers below the CCD is an example of the ________ of biogenous sediment.

destruction

The main energy resources associated with marine sediments are petroleum and ________

gas hydrates

In general, polar neritic sediment tends to have more ________.

gravel than in tropical waters

Sediment texture describes the ________ characteristics of a deposit.

physical