Introductory Text-book of Geology |
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Page 11
... into dry land . Vol- canic action is also sensibly affecting the surface of the globe- converting level tracts into mountain - ridges , throwing up new islands from the sea , and casting forth molten lava OBJECTS AND SCOPE OF GEOLOGY . 11.
... into dry land . Vol- canic action is also sensibly affecting the surface of the globe- converting level tracts into mountain - ridges , throwing up new islands from the sea , and casting forth molten lava OBJECTS AND SCOPE OF GEOLOGY . 11.
Page 12
... 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- rified ( Lat . petra , a stone , and fio , I ...
... 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- rified ( Lat . petra , a stone , and fio , I ...
Page 24
... islands of the Ganges , the swamps of the Mississippi , the R.NILE Nilotic Delta . Amazon , the Niger , and Irawaddy , are examples of such deposits on a large scale ; but every stream and current of water , however insignifi- cant , is ...
... islands of the Ganges , the swamps of the Mississippi , the R.NILE Nilotic Delta . Amazon , the Niger , and Irawaddy , are examples of such deposits on a large scale ; but every stream and current of water , however insignifi- cant , is ...
Page 25
... islands of such deltas as those of the Ganges , Irawaddy , and Niger . All these growths are slowly but continuously adding to the crust , and though the amount may be small compared with mechanically- 66 b formed sediments , yet ...
... islands of such deltas as those of the Ganges , Irawaddy , and Niger . All these growths are slowly but continuously adding to the crust , and though the amount may be small compared with mechanically- 66 b formed sediments , yet ...
Page 27
... island and shore where conditions of depth and current are favourable to its development . Many of these reefs , as will hereafter be seen ( par . 159 ) , extend for hundreds of leagues , and are of vast thickness , reminding one of the ...
... island and shore where conditions of depth and current are favourable to its development . Many of these reefs , as will hereafter be seen ( par . 159 ) , extend for hundreds of leagues , and are of vast thickness , reminding one of the ...
Common terms and phrases
abundant accumulations ADVANCED TEXT-BOOK argillaceous arranged basalt beds bituminous boulders calcareous Cambrian carboniferous chalk chemical chiefly clay-slate clays coal coal-measures coloured compact composed composition conglomerates coral-reefs corals cretaceous Crown 8vo crust crustacea crystalline deposits Devonian districts drift earth Edition encrinites England eocene epoch estuaries existing felspar fishes flagstones formation forms fossils fresh-water geologists Geology globe gneiss granite gravel Greensand greenstone grits groups igneous rocks interstratified islands lakes laminated land Laurentian lava layers lias lignite lime lower magnesian marine marls masses Mesozoic metamorphic mica mica-schist mineral miocene mountain limestone numerous occur ocean Old Red Sandstone oolite origin PALEOZOIC peculiar period Permian PHYSICAL GEOGRAPHY plants and animals Pliocene POST-TERTIARY present quartz remains of plants reptiles rivers rocky sand schists Scotland seas sedimentary shales shell-fish shells shores silicious silt Silurian slates slaty species stone strata stratified rocks structure term tertiary texture thickness tion Triassic upper variety vegetable veins volcanic Wealden
Popular passages
Page 1 - By Anthony Trollope. TACITUS. By WB Donne. CICERO. By the Editor. PLINY'S LETTERS. By the Rev. Alfred Church, MA, and the Rev. WJ Brodribb, MA LIVY. By the Editor. OVID. By the Rev. A. Church. MA CATULLUS, TIBULLUS, AND PROPERTIUS.
Page 5 - NICHOLSON. A Manual of Zoology, for the use of Students. With a General Introduction on the Principles of Zoology. By HENRY ALLEYNE NICHOLSON, MD, D.Sc., FLS, FGS, Regius Professor of Natural History in the University of Aberdeen.