Transcript Ocean Basins (Chapter 19) - Ms. Whitt's Science Classes

Global Oceans
 Atlantic, Pacific, Indian, Arctic, and Southern
Technology
(used to study oceans)
 Sonar- sound navigation and ranging, a system that
uses acoustic signals and returned echoes to determine
the location of objects or to communicate
 Submersibles- Human piloted or self piloted, vessels
sent underwater that can do a various of jobs like
taking photographs, collecting mineral samples.
 Drilling Ships- Ships used to obtain core samples, that
are used for testing
Continental vs. Oceanic
crust
 The boundary between the oceanic, and continental
crust is located at the base of the continental basin.
Ocean Basin Features
Trenches
 Long, narrow, and steep depression that forms on the
ocean floor as a result of subduction of a tectonic plate
Abyssal Plains
 A large, flat, almost level area of the deep-ocean basin
Mid-Ocean Basins
 Form underwater mountain ranges that run along the
floors of all oceans.
Seamounts
 Submerged volcanic mountains that are taller than 1
km
Ocean Sediments
Inorganic Sediments- Sediments brought from the land by
rivers that don’t originate from living organisms
Biogenic Sediments- sediments that originate from living
organisms
Chemical Sediments- Minerals, or sediments that form
from the crystallization of Nodules.
How Sediments Settle…
 Finer, and smaller particles will take along time to
settle opposed to the bigger and heavier particles that
settle faster.
 Finer and smaller particles settle on the deep ocean
basins, while the heavier, and coarser particles settle by,
or on the shore.