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plate tectonics
plate tectonics
plate tectonics
plate tectonics
plate tectonics
100
the year the hypothesis was thought of
What is 1596?
100
Name Wegener gave to his proposed single supercontinent
What is Pangea?
100
Iron-rich minerals loose their magnetism when heated above this temperature
What is Curie point?
100
the east coast of the United States an example of
What is Passive continental margin?
100
The idea proposed by Alfred Wegener to explain the continental shapes and positions
What are plate tectonics
200
person who made the theory of continental drift fully developed.
What is Alfred Wegener?
200
name Alfred Wegener gave to his theory of horizontal crustal movements
What is continental drift?
200
the character of magnetic anomalies on the seafloor
What is the occurrence in stripes that parallel mid-ocean ridges and are offset along transform faults?
200
this sea is a remnant of a larger ocean that has closed up
What is the black sea?
200
these modern continents were derived from Gondwanaland
What are Africa, Antarctica, Australia, India, South America
300
the movement of the Earth's continents relative to each other.
What is continental drift
300
reason why Wegener's theory rejected by geophysicists of the 1920's
what is the lack of a mechanism for continents to plough through oceanic crust
300
finally convinced geologists that the continents did move
What is Paleomagnetism?
300
this sea is an example of rifting forming an incipient ocean
What is the red sea?
300
the San Andreas Fault in southern California an example of this
What is transform plate boundary?
400
the year the theory of continental drift was fully developed.
What is 1912?
400
the concept that adding or removing a weight from the earth's crust causes it to depress or rebound
What is Isostasy?
400
When a ship passes over seafloor that has a reverse magnetic polarization, this is how it effects the magnetic field reading.
What is the strength of the magnetic field when it is slightly weaker than usual?
400
the plate tectonic theory predict about the distribution of volcanoes and earthquakes
They should occur primarily along plate boundaries?
400
this has become accepted as the primary mechanism for seafloor spreading
What is the Mantle convection cells
500
person who came up with the theory that continents drift
What is Abraham Ortelius?
500
type of evidence did Wegener use to support his theory
What is Distributions of fossil plants and animals,Distributions of modern plants and animals,Geographic fit of the continents and features thereon,Paleoclimatic oddities such as glacial till, coral reefs, and coal
500
the current comprehensive theory of horizontal crustal movements
What is Plate tectonics
500
the age order of sea floor types (the crust underlying them) from oldest to youngest
What is Continental shelf, abyssal plains, abyssal hills, mid-ocean ridge?
500
this happens when a piece of continent reaches an ocean-bound subduction zone
What is the subduction switches to the other plate?