Trace Elements Flashcards
1
Q
Key sources?
A
Fluvial / atmospheric / hydrothermal / recycling of particles
2
Q
Elements entering from rivers?
A
> 90% of the particulate load is trapped in estuaries
floods and storms will move a huge quantity of sediments
3
Q
Anthropogenic elements?
A
pollutant in origin eg power station chimney particles
4
Q
Hydrothermal vents?
A
Iron, manganese oxides
5
Q
Conservative behavior?
A
Na, Li, Cs
6
Q
Nutrient behavior?
A
Zn, N, Cd
7
Q
Scavenging or depth depletion behavior?
A
Fe, Cu, Pb
8
Q
Where does the caesium come from?
A
Reprocessing of nuclear waste - Cumbria and Normandy
