Ocean Bottom sediments

Question 1

List sediment size smallest to largest

Answer 1

clay

Question 2

List sediment size smallest to largest

Answer 2

clay

Question 3

3 sources of sediment

Answer 3

lithogenous
biogenous
hydrogenous

Question 4

What are lithogenous sediments

Answer 4

produced by weather rock

Question 5

What is the sediment accumulation of river deltas

Answer 5

> 800 cm/year

Question 6

What is the sediment accumulation of estuaries and bays

Answer 6

0.5 cm/year

Question 7

What is the sediment accumulation of continental shelf and slope

Answer 7

10-40 cm/1000years (0.001-0.004 cm/year)

Question 8

What is the sediment accumulation of the deep ocean

Question 9

How do sediments travel

Answer 9

by currents and wind

also by glaciers

Question 10

How do sediments travel

Answer 10

by currents and wind

also by glaciers

Question 11

3 sources of sediment

Answer 11

lithogenous
biogenous
hydrogenous

Question 12

What are lithogenous sediments

Answer 12

produced by weather rock

Question 13

What is the sediment accumulation of river deltas

Answer 13

> 800 cm/year

Question 14

What is the sediment accumulation of estuaries and bays

Answer 14

0.5 cm/year

Question 15

What is the sediment accumulation of continental shelf and slope

Answer 15

10-40 cm/1000years (0.001-0.004 cm/year)

Question 16

What is the sediment accumulation of the deep ocean

Question 17

Describe the sediment depth in the deep ocean

Answer 17

near center, little build up due to melting rock

build up farther from center (closer to shore)

Question 18

How do sediments travel

Answer 18

by currents and wind

also by glaciers

Question 19

How does size of sediment effect travel

Answer 19

smaller the particle the farther it travels

Question 20

What plant contributes to siliceous oozes

Answer 20

diatoms

Question 21

What are biogenous sediments

Answer 21

produced by marine animals and plants

Question 22

What are calcarous oozes

Answer 22

made up of remains of tiny shells and test containing calcium carbonate

Question 23

What are the animals that contribute to calcareous oozes

Answer 23

dinoflagellates and foraminiferea

Question 24

What are the plants that contribute to calcareous oozes

Answer 24

coccolithiphores

Question 25

How does calcium carbonate dissolve

Answer 25

at high pressure, high CO2 concentration and L temp (ie deep ocean)

Question 26

What does calcium carbonate dissolve into

Answer 26

CO2

Question 27

Where is calcium carbonate presereved

Answer 27

shallow water

Question 28

What is the water above continental shelf called

Answer 28

neuritic zone

Question 29

What plant contributes to siliceous oozes

Answer 29

diatoms

Question 30

What animal contributes to siliceous oozes

Answer 30

Radiolarians

Question 31

Where/how does silicate dissolve

Answer 31

not at h pressure, h co2 concentration, l temp

dissolves only if not enough silica

Question 32

What are the biogeneous accumulation on continental shelf

Answer 32

1cm per 1000 yars

Question 33

what are the diatomaceous oozes accumulation

Answer 33

1 cm/year

Question 34

What are hydrogenous sediment

Answer 34

precipitation from sea water or pore water (water with minerals)

Question 35

What are manganese nodules

Answer 35

iron and manganese oxide with other heavier elements

Question 36

What is the accumulation of manganese nodules

Answer 36

1mm/1 million years

Question 37

What is the water above continental shelf called

Answer 37

nuritic zone

Question 38

How do radioactive isotopes help date ice/water

Answer 38

more O18 means more evaporation meaning ice age time (glacial maximum)

Question 39

How can date time from ice cores

Answer 39

foram test deposite

Question 40

What are heinrich events

Answer 40

poorly sorted sediments, large rocks within mostly fin grain sediment—moraines and drop stones