Nature, Volume 9Sir Norman Lockyer Macmillan Journals Limited, 1874 |
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Página 51
... surface . It is evident that the pressure would be vastly greater a few hundreds or thousands of feet underground than at the surface , and hence that though the rocks deep down might be squeezed and crumpled , as we could crumple brown ...
... surface . It is evident that the pressure would be vastly greater a few hundreds or thousands of feet underground than at the surface , and hence that though the rocks deep down might be squeezed and crumpled , as we could crumple brown ...
Página 52
... surface , before even the oldest visible parts of the conglomerate were deposited upon them . This waste has been in progress ever since . We need not , therefore , hope to discover any vestige of the aboriginal surface . A geological ...
... surface , before even the oldest visible parts of the conglomerate were deposited upon them . This waste has been in progress ever since . We need not , therefore , hope to discover any vestige of the aboriginal surface . A geological ...
Página 55
... surface presents a form exactly adapted to that of the distal end of the tibia , so that the applied surfaces of the astragalus and tibia must have interlocked in such a manner as to have precluded all motion between them . The author ...
... surface presents a form exactly adapted to that of the distal end of the tibia , so that the applied surfaces of the astragalus and tibia must have interlocked in such a manner as to have precluded all motion between them . The author ...
Página 62
... surface , the lower con- tracting rocks must be solid , consequently there would be nothing to support a large anticlinal , and no rocks to pass into the liquid state ; the result would be a general small crumpling all along the surface ...
... surface , the lower con- tracting rocks must be solid , consequently there would be nothing to support a large anticlinal , and no rocks to pass into the liquid state ; the result would be a general small crumpling all along the surface ...
Página 68
... surface . We know that as to the later secondary period that part in the life of the globe which is now played by ... surface . A horizontal section shows that these surface - grooves are the external indi- cations of deep indentations ...
... surface . We know that as to the later secondary period that part in the life of the globe which is now played by ... surface . A horizontal section shows that these surface - grooves are the external indi- cations of deep indentations ...
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Página 197 - ... parts by weight of dry mineral matter, or one part by weight of dry organic matter in 100,000 parts by weight of the liquid.
Página 62 - ... curve. Such is, on the whole, the most probable representation of the earth's present temperature, at depths of from 100 feet, where the annual variations cease to be sensible, to 100 miles ; below which the whole mass, or all, except a nucleus cool from the beginning, is (whether liquid or solid) probably at, or very nearly at, the proper melting temperature for the pressure at each depth.