Seafloor Sediments

Question 1

What are the four marine sediments?

Answer 1

Lithogenous, Hydrogenous, Biogenous, and Cosmogenous

Question 2

Lithogenous sediments are?

Answer 2

Sediments derived from preexisting rock materials.

Question 3

Lithogenous sediments are also called ___________ because most Lithogenous sediments come from landmasses

Answer 3

Terrigenous

Question 4

Lithogenous sediments begins as?

Answer 4

rocks on continents or islands

Question 5

Eroded material is carried to oceans by

Answer 5

Streams, wind, glaciers, and gravity

Question 6

80% of lithogenous sediments are provided by what continent

Answer 6

Asia

Question 7

The greatest amount of lithogenous sediment is found?

Answer 7

along beaches and at the continental margin

Question 8

Rock fragments, Quarts sand, Quarts silt, Clay, and Volcanic ash are examples of which type of sediment

Answer 8

Lithogenous

Question 9

Calcareous ooze, Shell/Coral fragments, and Siliceous ooze are examples of which type of sediment

Answer 9

Biogenous

Question 10

Manganese nodules, Phosphorite, Oolites, Metal sulfides, and Evaporites are examples of which type of sediment?

Answer 10

Hydrogenous

Question 11

Iron nickel spherules, Tektites, Iron nickel meterorites, and Silicate chondrites are examples of which type of sediment

Answer 11

Cosmogenous

Question 12

Calcareous ooze comes from

Answer 12

Coccolithophores and Foraminifers

Question 13

Siliceous ooze comes from

Answer 13

Diatoms and Radiolarians

Question 14

Hydrogeneous sediments are

Answer 14

Precipitation of dissolved materials from sea water due to chemical reactions

Question 15

Biogenous sediments

Answer 15

Broken down bits of of organisms like teeth and bones

Question 16

The two most common chemical compounds in biogenous sediments are

Answer 16

Calcium Carbonate and and Silica

Question 17

Marine Snow is:

Answer 17

Made up of organic matter, dead sea creatures, tiny shells, dust and minerals.

Question 18

Sediments can be classified by size. The types of sediment, from smallest to largest are?

Answer 18

Clay, Silt, Sand, Gravel, Boulders

Question 19

What mineral is abundant but has yet to be commercially exploited in the pacific?

Answer 19

Manganese Nodules