contiental drift.
List 3 types of evidence that helped support continental drift.
Fit like puzzle, Plant fossils, rock & mountains, climate data (glacier stripes,oil) .
Younger rocks will be found _________to Mid-ocean ridges.
closer (nearer)
Plate tectonics explains the location of these occurrences.
What are volcanoes andearthquakes.
Boundaries where plates slide horizontally past each other.
Transform Boundaries
This is a single super continent that broke apart 200 million years ago.
What is pagena.
the theory that the continents are constantly slowly moving.
What is contiental drift.
The process in which the ocean floor is created when two plates move apart
What is sea floor spreading.
The hard rocky layer of the earth that makes up tectonic plates
What is lithosphere
Plates collide at this type of boundary
What is convvergent?
Cycle of heating, rising, cooling and sinking.
What is convection currents.
This man developed the theory of continental drift
What is Alfred wegener.
Magma comes out of the mantel along this separation forming a large under water mountain range mountain in the center of the ocean called this.
What is mid-ocean ridge.
The hot plastic-like layer of the earth upon which the plates move
What is asthenoshpere
Sea floor spreading occurs at this type of boundary
What is divergent?
where do volcanoes and earthquakes usually occur.
What is plate boundaries.
Why Wegener's theory was not readily accepted
What is could not prove how continents moved.
The type of rock magma turns into when it cools?
What is basalt (an igneous rock)
The term when one plate goes under another.
What is subduction?
Fault lines like the San Andreas and earthquakes occur at this type of boundary
What is transform.
When the magnetic force switches and magnetized objects point South
What is Reverse Polarity?
The fossil found on the most continents
What is glossopteris
The symmetrical stripes on either side of the mid-ocean ridge on the ocean floor are caused by a recording of this
What is magnetic polarity of iron in fresh magma?
When a continental and oceanic plate collide the one that subducts
What is oceanic?
Mountains are formed when 2 continental plates collide at this boundary
What is convergent?
3 types of forces that cause plate tectonics
What is 1. Basal Drag (Convection currents). 2. Ridge Push 3. Slab Pull