The New Encyclopaedia Britannica, Volume 6Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 63
... movements can be classified according to the mode and rate of movement , form of the surface of sliding , and the type of earth material moved . The most common downhill movement , almost imperceptible because of its small rate , is ...
... movements can be classified according to the mode and rate of movement , form of the surface of sliding , and the type of earth material moved . The most common downhill movement , almost imperceptible because of its small rate , is ...
Page 64
... MOVEMENTS Rockfalls . Rockfall refers to the abrupt movement of loosened blocks or complexes of solid rocks detached from rock walls . Rockfalls are distinguished by a very high velocity resulting from the free fall . Their size ranges ...
... MOVEMENTS Rockfalls . Rockfall refers to the abrupt movement of loosened blocks or complexes of solid rocks detached from rock walls . Rockfalls are distinguished by a very high velocity resulting from the free fall . Their size ranges ...
Page 66
... movement is usually trig- gered by heavy rainfall . Interstitial water increases the weight of the debris cover and greatly reduces its shear strength . The loosened mass flows toward the foot of the slope , forming a loaf - shaped ...
... movement is usually trig- gered by heavy rainfall . Interstitial water increases the weight of the debris cover and greatly reduces its shear strength . The loosened mass flows toward the foot of the slope , forming a loaf - shaped ...
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19th century Africa agriculture America Azande Basin British Byzantine capital Catholic central centre changes Chinese Christian Constantinople continental continued core crinoids crust cubic centimetre cultural density depth Earth earthquakes East African Eastern echinoderms eclipse economic economists ecosystem Ecuador ecumenical equations Europe export feet forecasting fossil geoid geological geomagnetic geosyncline German gravity groups holothurians important income increase Indian industry investment isostasy Kenya kilometres labour Lake Lake Victoria land magnetic field major mantle ment metres miles modern Mombasa Monophysite Moon mountains movement nomic North northern ocean organization Orthodox Church output Paleozoic patriarch percent peridotite period planning political population Precambrian production region River rocks Russian sector seismic slope social society solar South Soviet species structure surface Tanzania temperature theory tion trade traditional tube feet Uganda underdeveloped countries United waves West Western