Ocean Sediments And Paleoceanography Flashcards
1
Q
Sediment from land
A
Terrigenous, aeolian, and volcanogenic
2
Q
Sediment from ocean
A
Biogenic, authigenic, and evaporitic
3
Q
Sediment from space
A
Cosmogenic _ extraterrestrial
4
Q
Terrigenous
A
Detritus from continental erosion
5
Q
Aeolian
A
Dust blown by wind from land
6
Q
Volcanogenic
A
Spewed from volcanic eruptions
7
Q
Biogenic
A
Shells/$keletons and organic remains of dead organisms
8
Q
Authigenic
A
Formed in situ by organic precipitation
9
Q
Evaporitic
A
Salt precipitates from evaporation
10
Q
Ice-rafted debris
A
Material incorporated into the glacier is transported to the ocean as ice bergs calve. Melting icebergs drop large particles in otherwise fine deep sea sediments
11
Q
Proxies
A
They are surrogates for environmental parameters that can no longer be measured directly
