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Oceanic ridges
at diverging plate boundaries
Oceanic trenches
at converging plate boundaries
bathymetric features
Continental Shelf (underlain by thinning continental crust)
Continental Slope (transitional between crustal types)
Continental Rise (transitional between crustal types)
Abyssal Plains (underlain by oceanic crust)
carbonate-dominated Continental Shelf
has corals, needs sunlight and clear, warm, clean, salt water
Fringing Reefs
grow seaward directly from the shore
Barrier Reefs
linear reefs that parallel shore
separated from shore by lagoon
Atolls reef
No exposed central landmass (made around an volcano which eroded)
Platform/Patch Reefs
More abundant during past, Grow in isolated oval patches
seamount
a volcano that does not reach the surface of the ocean
guyot
eroded flat toped underwater volcano
Terrigenous Sediments
sediments from land brought into ocean by streams, wind, glaciers, Submarine Canyons and Sea level changes
Submarine Canyons
Major incisions into continental shelf, continental slope and rise, dumps sediment into basin floor in a submarine fan
turbidity currents (sediment gravity flows)
mass failure, high-velocity erosive events that carve submarine canyons
Cosmogenous Sediment
from space; includes Tektites (small glassy pebble-like objects) and Microtektites
low latitudes near the Equator
area with the lowest ocean salinity because precipitation exceeds evaporation
continental
The continental shelf is underlain by ______ crust
Corals need their zooxanthellae (algae) friends - the algae needs sunlight for photosynthesis
Why are corals found primarily in shallow water?
The water is too dirty (it's not clean and clear)
Why don’t we have carbonate reefs off the Texas coast?
Fringing reef
What type of reef is this? (attached to the landmass)
atoll reef
What type of reef is this? (no central landmass)
guyot
What is this (completely submerged) abyssal plain feature?
aeolian dust (brought from continents by wind)
the most-likely source of the red clay in the ocean
submarine canyons
What are these (A, B, C)?
hydrogenous
What type of deposit is this?
Note 
Flashcard (59)