11 terms

chapter 13 sections 1,2

STUDY
PLAY
Salinity
a measure of the amount of dissolved salts in a given amount of liquid
water cycle
The continuous process by which water moves from Earth's surface to the atmosphere and back
sonar
a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return
geosat
A satellite used to measure slight changes in height of ocean's surface.
continental shelf
the gently sloping section of the continental margin located between theshorline and the continental slope
Continental slope
The steeply inclined section of the continental margin located between the contnental rise and the continental shelf
abyssal plain
large, flat almost level portion of the deep-ocean basin
mid-ocean ridge
An underwater moutain chain where new ocean floor is formed
rift valley
a long narrow valley that forms as tectonic plates separate
seamount
a submerged mountain on the ocean floor that is at least 1,000m high and that has a volcanic orgin
ocean trench
a steep, long depression in the deep-sea floor that runs parallel to a chain of volcanic islands or a continental margin