Intro to Marine Environments Flashcards
1
Q
When did first life forms arise?
A
3.6 bya (primordial soup)
2
Q
Stromatolites
A
chunks of rock that build up over time by layers of sediment and cyanobacteria
3
Q
Thermocline
A
layer where temp changes rapidly in small change in depth
4
Q
Halocline
A
layer where salinity changes rapidly in small change in depth
5
Q
Pycnocline
A
layer where density changes rapidly in small change in depth
6
Q
Tidal bore
A
area where waves push up in a flat river
- occurs with spring tides and low river flow
