Fresh features from the #1 AI-enhanced learning platform.
Try it free
Fresh features from the #1 AI-enhanced learning platform
Crush your year with the magic of personalized studying.
Try it free
hello quizlet
Home
Subjects
Expert Solutions
Log in
Sign up
Science
Earth Science
Geology
Sea-Floor Spreading
3.6 (30 reviews)
Flashcards
Learn
Test
Match
Q-Chat
Get a hint
What is the process of sea-floor spreading?
Click the card to flip 👆
In sea-floor spreading, the sea floor spreads apart along both sides of a mid-ocean ridge as new crust is added. As a result, the ocean floors move like conveyor belts, carrying the continents along with them.
Click the card to flip 👆
1 / 21
1 / 21
Flashcards
Learn
Test
Match
Q-Chat
Created by
mrquell
Teacher
Share
6th grade science - Sea-Flooring Spreading
Share
Terms in this set (21)
What is the process of sea-floor spreading?
In sea-floor spreading, the sea floor spreads apart along both sides of a mid-ocean ridge as new crust is added. As a result, the ocean floors move like conveyor belts, carrying the continents along with them.
What is the evidence for sea-floor spreading?
Several types of evidence supported Hess's theory of sea-floor spreading: eruptions of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves.
What happens at ocean trenches?
In a process taking tens of millions of years, part of the ocean floor sinks back into the mantle at deep-ocean trenches.
Mid-ocean ridges
an undersea mountain chain where new ocean floor is produced.
sonar
a device that bounces sound waves off underwater objects and then records the echoes of these sound waves. The time it takes for the echo to arrive, indicates the distance to the object.
