Mastering Oceanography Questions Chapter 4

Radiolarian oozes typically form near the equator.

True

Tektites are glassy rock fragments created during impact events

True

Marine sediment with more than 30% biogenous material is called __________.

ooze

Of the following sediments, which one(s) is/are considered biogenous?

radiolarian ooze tests of foraminifers

All the following are examples of hydrogenous sediment except :

stromatolites.

Oozes are uncommon on continental margins because __________.

the biogenous component tends to be overwhelmed by the amount of lithogenous material derived from the nearby continent

Match the term or person with the appropriate phrase. abyssal clay

Lithogeneous

Match the term or person with the appropriate phrase. tektites Match the term or person with the appropriate phrase. tektites

Cosmogenous

Match the term or person with the appropriate phrase. halite

Hydrogenous

Sediments produced because of chemical reactions in seawater are called:

Hydrogenous

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Please identify the word and/or phrase that does NOT fit the pattern. Enter only the letter of the answer (caps, no period, and not the full entry) in the field below. A. biogenous B. calcareous C. cosmogenous D. hydrogenous E. lithogenous

B

The sediments that are produced in areas of high primary productivity are indicated by the number(s):

2 and 3

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Please identify the word and/or phrase that does NOT fit the pattern. Enter only the letter of the answer (caps, no period, and not the full entry) in the field below. A. siliceous ooze B. quartz sand C. rock fragments D. clay E. volcanic ash

A

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

Abyssal plain far from the continent

Marine sediments provide valuable clues about which of the following Earth history events?

All are correct

Match the term or person with the appropriate phrase. coccolithophores

Biogenous

Match the term or person with the appropriate phrase. siliceous ooze

Biogenous

Match the term or person with the appropriate phrase. stromatolites

Biogenous

Marine sediments that originate in the warm tropical surface ocean would create deposits in the deep sea composed primarily of ___________.

Calcium Carbonate

Which of the following are microscopic, single-celled floating algae that accumulate to form biogenous sediment? Which of the following are microscopic, single-celled floating algae that accumulate to form biogenous sediment? Foraminifers Coccolithophores Radiolarians Diatoms

Diatoms Coccolithophores

Which of the following contains calcium carbonate (CaCO3)?

Formaniferans

Which of the following contains silica (SiO2)?

Radiolarians

Which of the following organisms are responsible for the creation of siliceous ooze?

Radiolarians Diatoms

Of the following statements about surface water temperature above biogenous sea floor deposits, which is/are true?

Siliceous ooze on the sea floor indicates cool surface water above. Calcareous ooze on the sea floor indicates warm surface water above.

What can you infer about the ocean environment from a core sample composed of the following layers: siliceous ooze (youngest layer) calcareous ooze basalt rock (oldest layer)

The core was collected in a region of high surface productivity in water deeper than 4,500 meters.

Which of the following conditions allows for calcareous ooze to be found beneath the CCD? Select only one answer.

The ooze accumulates above the CCD and then is covered before being transported to deeper depths by sea floor spreading.

The four main types of marine sediment include all the following except : The four main types of marine sediment include all the following except : hydrogenous sediment. cosmogenous sediment. zoogenous sediment. biogenous sediment. lithogenous (terrigenous) sediment.

Zoogenous

Match the term or person with the appropriate phrase. turbidite

associated with submarine canyons and deep-sea alluvial fans

Of the following environments, in which one(s) would lithogenous sediment be found? Of the following environments, in which one(s) would lithogenous sediment be found? continental slopes continental shelves abyssal plains continental rises deep-ocean trenches

continental slopes continental shelves abyssal plains continental rises deep-ocean trenches

Match the term or person with the appropriate phrase. CCD

depth at which all calcium carbonate is in solution

Match the term or person with the appropriate phrase. lysocline

depth at which calcium carbonate begins to dissolve