Occasional Papers on the Theory of Glaciers Now First Collected and Chronologically Arranged: With a Prefatory Note on the Recent Progress and Present Aspect of the TheoryA. and C. Black, 1859 - 278 páginas |
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Página ix
... STREAMS [ 1845 ] 21. Plastic Models . 2. Analogy of Glaciers to Lava Streams ... Note on the Velocity of Lava . XII . ILLUSTRATIONS OF THE VISCOUS THEORY OF GLACIER MOTION . * - PART II . AN ATTEMPT TO ESTABLISH BY OBSERVATION THE ...
... STREAMS [ 1845 ] 21. Plastic Models . 2. Analogy of Glaciers to Lava Streams ... Note on the Velocity of Lava . XII . ILLUSTRATIONS OF THE VISCOUS THEORY OF GLACIER MOTION . * - PART II . AN ATTEMPT TO ESTABLISH BY OBSERVATION THE ...
Página xxvi
... stream . These gave rise to the Eleventh , Twelfth , and Thirteenth Letters which follow . The remaining Letters contain additional illustrations of the Theory derived from various quarters , and the results of my latest visit to ...
... stream . These gave rise to the Eleventh , Twelfth , and Thirteenth Letters which follow . The remaining Letters contain additional illustrations of the Theory derived from various quarters , and the results of my latest visit to ...
Página 16
... stream . In the lower and faster - moving part of the glacier , this disproportion is greatest , varying from one - third to one - half of the smaller velocity . Near the origin of the glacier it appears to be one - fourth or one ...
... stream . In the lower and faster - moving part of the glacier , this disproportion is greatest , varying from one - third to one - half of the smaller velocity . Near the origin of the glacier it appears to be one - fourth or one ...
Página 29
... streams are precipitated into the heart of the glacier by vertical funnels called " moulins " at the very same points ; the fissures , though forming very different angles with the axis or sides of the glacier at different points of its ...
... streams are precipitated into the heart of the glacier by vertical funnels called " moulins " at the very same points ; the fissures , though forming very different angles with the axis or sides of the glacier at different points of its ...
Página 30
... stream is urged onwards by pressure from above ( how caused we shall immediately con- sider ) , which is there resisted less than at the sides and bottom , owing to the comparative absence of friction . The lateral parts are dragged ...
... stream is urged onwards by pressure from above ( how caused we shall immediately con- sider ) , which is there resisted less than at the sides and bottom , owing to the comparative absence of friction . The lateral parts are dragged ...
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Términos y frases comunes
ablation Alps analogy angle annual motion appears Arveiron August Balmat bands Bishop of Annecy Brenva cause centre Col du Géant compact congelation continuity convex Courmayeur crevasses curve curved bands daily motion declivity direction dirt-bands effect Etna evidence experiment fact feet fissures fluid friction frontal dip Glace of Chamouni Glacier des Bois glacier motion glacier moves glacier of Bossons Grindelwald horizontal hydrostatic pressure inches inclination internal July lava stream less Letter on Glaciers longitudinal lower marked mass measurement Mer de Glace millimetres Mont Blanc Montanvert moraine motion of glaciers mud-slide nearly névé observations origin parallel particles plane plastic Plate portion pressure produce remarkable retardation rock Saussure Saussure's season side sliding slope snow solid station summer surface Talefre temperature thawing theodolite theory of glaciers tion transverse Travels valley veined structure velocity vertical Vesuvius viscous theory volume whilst winter wrinkles