Card Set Information
Plate Tectonics Munasinghe
A "plate" as used in the theory of Plate Tectonics is a _____ of the lithosphere.
According to the theory of plate tectonics, plates constantly _____ relative to each other.
Plates move beacuse they _____ on the moving _____.
The two types of plate are _____ and _____.
Plate motion was first observed in _____ drift.
We can prove that continents drift by showng that they _____ like pieces of a jigsaw puzzle, and by showing that _____, _____, _____ match when the continents are fitted to form a super continent.
fit, fossil sites, rocks, climate zones
Because oceans form by _____ motion of continents, ocean basins are _____ than continents.
The _____ valley is a proof that the seafloor spreads.
The age of the seafloor rocks _____ as the distance from the MOR increases.
_____ indicate that the plates are moving even today.
Plate tectonics is an important theory beacuse it explains the distribution of _____, _____, and _____.
oceans, continents, earthquakes
The three types of plate motions, therefore boundaries are _____, _____, and _____.
divergent, convergent, transform
Seafloor forms at _____boundaries, and is destroyed along _____ boundaries at _____.
divergent, convergent, trenches
Plates are conserved at _____ boundaries, a good example for this is the _____ fault.
transform, San Andreas
The energy for late motion comes from _____/
If two oceanic converge, the _____, _____, _____ plate will undergo subduction.
denser, cooler, older
Plate motion is from _____ to _____ volcanoes that were produced by a stationary hotspot.
Marine magnetic anomalies are _____ about the MOR proving that oceanic plates form at and spread from _____.
Along what features would you expect to find the deepest earthquakes?
What plate boundary would have only shallow earthquakes?
What specific type of plate boundary would have a fold mountain range.
continental - continental
What specific type of plate boundary would have volcanic mountain ranges.
continental - oceanic
How would you recognize a series of volcanoes formed due to a hotspot?
The volcanoes form a straight line
What plate motion would "close" an ocean?
How would you recognize a series of volcanoes formed due to subduction?
The volcanoes form a curved line