Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Chapter 17


continental drift Wegener's hypothesis that Earth's continents were joined as a single lanswass, called Pangaea, that broke apart about 200 mya and slowly moved to their present
Pangaea ancient land mass made up of all the continents that began to break apart apart about 200 mya.
magnetometer device used to map the ocean floor that detects small changes in magnetic ields.
magnetic reversal When Earth's magnetic field changes polarit between normal and revesed.
paleomagnetism study of Earth's magnetic record usin data gathred from ironbearign minerals in rocks that have recored the orientation of Earth's mamgetic field at the time of their formation.
isochron Imaginary line on a map that shows pooints of the same age; formed at the same time.
seafloor spreading the hyothesis that new ocean crust is formed a t mid-ocean ridges and detroyed at deep-sea trencehes, occurs in a cotinious cycle of magma intusion and spreading
tectonic plate huge pieces of earth's cust taht cover its surface and fit togeterat their edges.
divergent boundary place where two of Earth's tectonic plates are moving apart; is associated with colcansim, earthquakes, and high heat flow, and is found primarly on the seafloor.
rift valley long, narrow depression that forms when continental crust begins to separate at a divergent boundary.
convergent boundary place whre two tectonic plates are moving toward each other; is associated with trenches, island arces, and folded mountains.
subduction process by which one tectonic plate slids beneath another tectonic plate.
transform boundary place where two tectoic plates slide horizntally as t ech antother; is characterized by long faults and shallow earthquakes
Ridge Push Tectonic process associated with convection currents in Earth;s mantel taht occurs when the weight of an elevate ridge pushes an oceanic plate toward a subduction zone
Slab pull tectonic process associated with convection currents in Earths mantel that occurs as the weight of the subductioning plate pulls the trailing lithosphere into asubduction zone
Created by: louizatamez
Popular Earth Science sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards