History of the Earth Part 2

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Can you name the Term?

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

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Created Nov 27, 2010ReportNominate
Tags:earth