The Geological ObserverLongman, Brown, Green, and Longmans, 1853 - 740 стор. |
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Сторінка vi
... existing observations would lead us to infer were established ; to show how the correct- ness of such observations may be tested ; and to sketch the directions in which they may apparently be extended . Having been , to a certain extent ...
... existing observations would lead us to infer were established ; to show how the correct- ness of such observations may be tested ; and to sketch the directions in which they may apparently be extended . Having been , to a certain extent ...
Сторінка viii
... existing life amid mineral matter - Of plants and vegetable matter - Bogs - Dismal Swamp - Rafts in the Mississippi — Ani- mal remains on the land - Vertebrata - Ossiferous caverns and lake de- posits - Insects - Land molluscs - Effects ...
... existing life amid mineral matter - Of plants and vegetable matter - Bogs - Dismal Swamp - Rafts in the Mississippi — Ani- mal remains on the land - Vertebrata - Ossiferous caverns and lake de- posits - Insects - Land molluscs - Effects ...
Сторінка xxii
... , from those of certain existing fresh - water molluscs in England and part of Europe . + The minor divisions of this group have been given with reference to those usually D. Trias Group * A. Permian Group . ( a xxii INTRODUCTION .
... , from those of certain existing fresh - water molluscs in England and part of Europe . + The minor divisions of this group have been given with reference to those usually D. Trias Group * A. Permian Group . ( a xxii INTRODUCTION .
Сторінка 29
... existing rivers , since the Lago Maggiore , the Lago di Como , and others necessarily stop the progress of those borne from the high Alps by the torrents which now feed these lakes . By attending to the kinds of rock traversing a valley ...
... existing rivers , since the Lago Maggiore , the Lago di Como , and others necessarily stop the progress of those borne from the high Alps by the torrents which now feed these lakes . By attending to the kinds of rock traversing a valley ...
Сторінка 36
... existing valley in granite , bb , de being a ravine , with c a river running through it , he should see if the stream of lava , a , has been actually cut through , or if it has never completely filled the valley , so that a space may ...
... existing valley in granite , bb , de being a ravine , with c a river running through it , he should see if the stream of lava , a , has been actually cut through , or if it has never completely filled the valley , so that a space may ...
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Загальні терміни та фрази
accumulations acid action alumina amid animals appear ashes beach beds beneath blocks bottom breakers British Islands calcareous carbonate carbonic acid cavities cinders clay cliffs coal coast considerable considered coral reefs Cornwall crater crystals deposits depth detritus district dry land earthquake Edition effected elevated eruption estuary evidence exposed fathoms feet felspar fissures formed fragments geological glaciers granite ground hornblende igneous rocks inferred kind lakes lava lime limestone magnesia manner marine mass mechanical suspension Mendip Hills miles mineral matter mode of occurrence modifications molluscs molten mountain noticed observer occur ocean old red sandstone oolitic organic remains pebbles portions present produced Professor quartz red sandstone regards regions respect rise river sand sea-bottom section fig seen shells shores side silicates Silurian Sir James Ross sometimes species specific gravity streams substances sufficient surface temperature thrown tidal tide tion trachytic traversed various vegetable veins volcanic
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