Introductory Text-book of GeologyW. Blackwood and Sons, 1869 - 194 strani |
Iz vsebine knjige
Zadetki 1–5 od 30
Stran 12
... drift ; and earthquakes submerge plains and islands , with all their vegetable and animal inhabitants . These remains become enveloped in the layers of mud and sand and gravel formed by the waters , and in process of time are pet ...
... drift ; and earthquakes submerge plains and islands , with all their vegetable and animal inhabitants . These remains become enveloped in the layers of mud and sand and gravel formed by the waters , and in process of time are pet ...
Stran 18
... drift about all loose material , carrying them away from one spot , and piling them up in another . In this way extensive tracts ( sand - dunes or link - lands ) are formed along the coasts of many countries by the inland drifting of ...
... drift about all loose material , carrying them away from one spot , and piling them up in another . In this way extensive tracts ( sand - dunes or link - lands ) are formed along the coasts of many countries by the inland drifting of ...
Stran 21
... drift , clay , sand , and gravel , containing , in greater or less abundance , the remains of plants and animals peculiar to the country through which the river flowed . In this manner layers or strata of sedimentary matter are forming ...
... drift , clay , sand , and gravel , containing , in greater or less abundance , the remains of plants and animals peculiar to the country through which the river flowed . In this manner layers or strata of sedimentary matter are forming ...
Stran 22
... drift of rivers form rafts ( like those of the Mississippi ) —all of which are adding to the solid matter of the globe . Coal , as will afterwards be seen , is but a mass of mineral- ised vegetation ; and under favourable conditions ...
... drift of rivers form rafts ( like those of the Mississippi ) —all of which are adding to the solid matter of the globe . Coal , as will afterwards be seen , is but a mass of mineral- ised vegetation ; and under favourable conditions ...
Stran 23
... drift- shells occur less or more along the sheltered recesses of every ocean , and these , in like manner , when covered up or consolidated , will be converted into limestones and marbles . The recent dis- coveries of the microscope ...
... drift- shells occur less or more along the sheltered recesses of every ocean , and these , in like manner , when covered up or consolidated , will be converted into limestones and marbles . The recent dis- coveries of the microscope ...
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 - 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...