Science Quiz / History of the Earth Part 2

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last magnetic reversal took place this many years ago (use numerals and spaces instead of commas)
because of this, ancient rocks show different pole positions to those at present
the term that describes when the north magnetic pole changes to the south polar position
these are often associated with flood basalts and rifting
man who first recognized the significance of transform boundaries (as written in slide show)
the theory that states that continents move by plowing through the sea floor
supercontinent that separated into laurasia and gondwana
he study of the record of the Earth's magnetic field in rocks
rigid crust and upper mantle
lithosphere is broken into this many major plates
average number of years the magnetic field reverses (in numerals, use spaces instead of commas)
the theory used to explain basin infilling during the 19th century
the instrument that measures magnetic field fixed within a rock
this can help identify the paleolatitude at which the rock formed
The name of Hess' theory regarding what drives plate tectonics
formed from sediments that are added onto the non-subducting tectonic plate at a convergent plate boundary
term for the inactive arm of a three pronged rift
a supercontinent that did not break into Laurasia and Gondwana
trailing continental edge of a tectonic plate, with no active tectonic interaction
an example (from the slideshow) of a transform boundary
the deepest part of the ocean, found between 2 lithospheric plates
lithosphere is broken into this many minor plates
the upwelling of basalt through fissures is caused by these formations
Changes in magnetic properties are called
the process through which plates crumple to form mountain ranges
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Created Nov 27, 2010ReportNominate

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