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