Which theory is supported by the pattern of magnetic orientation of rocks on both sides of the mid-ocean ridge?
Seafloor Spreading Theory
African, Caribbean, or Eurasian, which is NOT A MAJOR TECTONIC PLATE?
Caribbean
Which of the three boundary types is the LEAST COMMON?
TRANSFORM PLATE BOUNDARY
What is the term for the sinking of the ocean floor back into the mantle beneath a deep-ocean trench?
Subduction
What evidence of Alfred Wegener theory focuses on the shapes of continental coastlines?
Geological Fit
Which relative densities of crustal rocks is true?
-ocean rock is denser while continental rock is less dense.
-ocean rock is less dense while continental rock is denser.
-ocean rock is denser while continental rock is less dense.
The Himalayas, where the Indo-Australian Plate is colliding with the Eurasian Plate is an example of what tectonic plate boundary?
Convergent Plate Boundary
If rifting continues in a continental rift valley, which is most likely to form next?
A new oceanic basin
What evidence proved that South America, Africa, India, and Australia were once covered by ice?
When hot rock has been cooled, it becomes ______ (What happens to its density?)
More Dense (Denser)
Identify the geologic features that resulted from an Oceanic-Oceanic Plate Collision. Give Three (3).
Earthquake; Tsunami; Trench ; Volcanic Island Arc
Peru-Chile trench, Hawaii's hotspots, or Mid-Atlantic ridge, which place is best to study subduction?
Peru-Chile Trench
Which fossil strengthens the idea that South America and Africa were once joined?
Mesosaurus
What causes the tectonic plate movement?
Convection or
Mantle Convection
A plate boundary between a segment of divergent and convergent motion is _______.
Transform Plate Boundary
What is called when Earth’s magnetic field leaves the south pole and enters the north pole?
Magnetic Reversal
What is the main reason why Wegener’s theory about continental motion was not accepted as trues in is lifetime?
There is no evidence that supports how the continents move. They believed before, that the Earth's crust is fixed in place.
Which two plates marks the boundary of the Philippine plate?
-Pacific and Antarctica -Pacific and Indian
-Pacific and Eurasian
-Pacific and Eurasian
What causes the earthquakes to occur at tectonic plate boundaries?
Stress
In a hotspot, what can you say about the age of volcanic islands?
-The rocks increase in age as it moves further from the current active volcanic island.
-The older island are the farthest from the current volcano.