The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 123
... material and material of the upper mantle . The regimes of the continental margins are related to reduced thicknesses of the crust . In North America the crust thickness at the centre of the continent reaches an average of 40 kilometres ...
... material and material of the upper mantle . The regimes of the continental margins are related to reduced thicknesses of the crust . In North America the crust thickness at the centre of the continent reaches an average of 40 kilometres ...
Page 149
... material that results from roasting , known as calcine , is a fine mixture of the sulfides and oxides of iron and copper , gangue material , and nonvolatile impurities . The total sulfur content has been reduced to that desired for the ...
... material that results from roasting , known as calcine , is a fine mixture of the sulfides and oxides of iron and copper , gangue material , and nonvolatile impurities . The total sulfur content has been reduced to that desired for the ...
Page 557
... material known as the shear modulus , or the rigidity . If a solid obeying Hooke's law is subjected to a small uniform expansion ( i.e. , ( a -1 ) << 1 ] the stress is isotropic : - p = 3K ( a – 1 ) , in which 3 ( a 1 ) is the ...
... material known as the shear modulus , or the rigidity . If a solid obeying Hooke's law is subjected to a small uniform expansion ( i.e. , ( a -1 ) << 1 ] the stress is isotropic : - p = 3K ( a – 1 ) , in which 3 ( a 1 ) is the ...
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