The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 54
Direct techniques are unable to reproduce pressures and temperatures occurring
below about 600 kilometres ; detailed ... ( spinellike ) , to the strontium plumbate
structure , which may well occur within a relatively narrow depth range and could
...
Direct techniques are unable to reproduce pressures and temperatures occurring
below about 600 kilometres ; detailed ... ( spinellike ) , to the strontium plumbate
structure , which may well occur within a relatively narrow depth range and could
...
Page 65
The main deformations probably occurred about 230,000 years ago , during the
Pleistocene Epoch ( 10,000 to ... In general , squeezing of the substratum may
occur whenever ( 1 ) the soft rocks within a limited area are released from the ...
The main deformations probably occurred about 230,000 years ago , during the
Pleistocene Epoch ( 10,000 to ... In general , squeezing of the substratum may
occur whenever ( 1 ) the soft rocks within a limited area are released from the ...
Page 69
Two other means of inducing earthquakes in- quakes that occur at depths of
more than 700 kilometres belts volve dam and reservoir construction and the
under- ( 450 miles ) below the surface ; their sources are chiefly and in the
ground ...
Two other means of inducing earthquakes in- quakes that occur at depths of
more than 700 kilometres belts volve dam and reservoir construction and the
under- ( 450 miles ) below the surface ; their sources are chiefly and in the
ground ...
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