Introductory Text-book of GeologyW. Blackwood and Sons, 1869 - 194 strani |
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Zadetki 1–5 od 27
Stran 9
... Chemistry . Being unable to penetrate beyond a few thousand feet into the solid substance of the globe , the labours of geologists are necessarily confined to its exterior shell or crust ; hence they speak of the " crust of the globe ...
... Chemistry . Being unable to penetrate beyond a few thousand feet into the solid substance of the globe , the labours of geologists are necessarily confined to its exterior shell or crust ; hence they speak of the " crust of the globe ...
Stran 16
... chemical agency , -are all continually tending to separate , to combine , and to rearrange the materials composing the crust of the earth . 13. In a comparatively fixed and stable region like our own , one is apt to underrate the ...
... chemical agency , -are all continually tending to separate , to combine , and to rearrange the materials composing the crust of the earth . 13. In a comparatively fixed and stable region like our own , one is apt to underrate the ...
Stran 17
... CHEMICAL , or those resulting from the chemical action of substances on each other ; and the IGNEOUS , or such as manifest themselves in connection with MODIFYING CAUSES . 17.
... CHEMICAL , or those resulting from the chemical action of substances on each other ; and the IGNEOUS , or such as manifest themselves in connection with MODIFYING CAUSES . 17.
Stran 21
... chemical solution ) in the current , the moment the water assumes a state of quiescence it begins to fall to the bottom . The heavier bodies , as shingle and gravel , fall first , next the finer particles of sand , and ultimately the ...
... chemical solution ) in the current , the moment the water assumes a state of quiescence it begins to fall to the bottom . The heavier bodies , as shingle and gravel , fall first , next the finer particles of sand , and ultimately the ...
Stran 23
... chemical agency - is that of the coral zoophyte . Endowed with the power of secreting lime from the waters of the ocean , the coral animalcule rears its polypidom , or rocky structure ( polypus , and domus , a house ) , in the warmer ...
... chemical agency - is that of the coral zoophyte . Endowed with the power of secreting lime from the waters of the ocean , the coral animalcule rears its polypidom , or rocky structure ( polypus , and domus , a house ) , in the warmer ...
Pogosti izrazi in povedi
abundant accumulations agency aqueous arrangement ATLAS basalt beds bituminous boulders building-stone calcareous Cambrian carboniferous chalk chemical chiefly clay clay-slate coal coal-measures coloured compact composed composition conglomerates coral-reefs corals cretaceous crust crustacea crystalline deposits districts drift earth Edition encrinites England eocene epoch estuaries existing felspar fishes formation forms fossils frequent fresh-water GEOGRAPHY geologists Geology globe gneiss granite gravel greenstone grits groups igneous rocks interstratified islands lakes laminated land Laurentian lava layers less lias lignite lime limestone lower marine marls masses Mesozoic Metamorphic mica mica-schist mineral mountain limestone numerous occur ocean Old Red Sandstone oolite origin PALEOZOIC peculiar period Permian plants and animals present quartz remains of plants reptiles rivers rocky sand schists Scotland seams seas sedimentary shales shell-fish shells silicious silt Silurian slates slaty species stone strata stratified rocks structure surface termed tertiary TEXT-BOOK texture thick tion trap trappean Triassic upheavals upper vegetable volcanic wealden zoophytes
Priljubljeni odlomki
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Stran 193 - It has not been our good fortune to examine a text-book on science of which we could express an opinion so entirely favourable as we are enabled to do of Mr Page's little work."— Athenceum., ADVANCED TEXT-BOOK OF GEOLOGY, DESCRIPTIVE AND INDUSTRIAL.
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Stran 193 - Of singular merit for its clearness and trustworthy character." — Standard. Third Edition, Enlarged. GEOLOGY FOR GENERAL READERS. A Series of Popular Sketches in Geology and Palaeontology. By the Surne. 6s. "This is one of the best of Mr page's many good books. It is written in a flowing, popular style. Without illustration or any extraneous aid, the narrative must prove attractive to any intelligent reader."— Geological Magazine.
Stran 193 - The divisions of the subject are so clearly defined, the explanations are so lucid, the relations of one portion of the subject to another are so satisfactorily shown, and, above all, the...