Economic Geology: Or, Geology in Its Relations to the Arts and ManufacturesW. Blackwood and sons, 1874 - 336 páginas |
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Página vii
... industrial requirements is yearly extending , and there are few substances in the earth's crust which are now not turned to account in the multifarious industries of civilised life . A knowledge of these substances their nature , geolo ...
... industrial requirements is yearly extending , and there are few substances in the earth's crust which are now not turned to account in the multifarious industries of civilised life . A knowledge of these substances their nature , geolo ...
Página xiv
... Industrial Products . Tertiary System Cretaceous System Wealden Formation 99 99 99 99 99 Oolitic Formation " " " " Liassic Formation 99 99 Triassic System 99 Permian System " " Carboniferous System Old Red and Devonian and their ...
... Industrial Products . Tertiary System Cretaceous System Wealden Formation 99 99 99 99 99 Oolitic Formation " " " " Liassic Formation 99 99 Triassic System 99 Permian System " " Carboniferous System Old Red and Devonian and their ...
Página 1
... industrial necessities of life . In its scientific aim it examines , maps out , and arranges the rocks of the earth's crust into formations and life - systems according to their composition , relative positions , and fossil contents ...
... industrial necessities of life . In its scientific aim it examines , maps out , and arranges the rocks of the earth's crust into formations and life - systems according to their composition , relative positions , and fossil contents ...
Página 8
... industrial products and pro- cesses that may come under review . Stratified and Unstratified Rocks . The exterior crust , which forms the theme of the geologist , is composed of rocks ; and under this term are included all its ...
... industrial products and pro- cesses that may come under review . Stratified and Unstratified Rocks . The exterior crust , which forms the theme of the geologist , is composed of rocks ; and under this term are included all its ...
Página 27
... industry and civilisation . The Old Red Sandstone or Devonian System ( from Devon- shire , where a portion of it is typically developed ) consists in the main of reddish sandstones , conglomerates , flagstones , and shales , with ...
... industry and civilisation . The Old Red Sandstone or Devonian System ( from Devon- shire , where a portion of it is typically developed ) consists in the main of reddish sandstones , conglomerates , flagstones , and shales , with ...
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Economic Geology: Or, Geology in Its Relations to the Arts and Manufactures David Page Visualização integral - 1874 |
Economic Geology: Or, Geology in Its Relations to the Arts and Manufactures David Page Visualização integral - 1874 |
Economic Geology: Or, Geology in Its Relations to the Arts and Manufactures David Page Visualização integral - 1874 |
Palavras e frases frequentes
abundance admixture agricultural alumina amount antimony arsenic arts and manufactures basalts beds bismuth bituminous blocks Britain calcareous carbonate carbonic acid Carboniferous cements chalk chemical chiefly chloride clay clayey coal colour compact composition consists containing copper crust crystalline crystals deposits districts durable earth employed engineer felspar fire-clays formations geologist Geology gold granites gravels Greensand greenstones grits gypsum hard heat hence hornblende igneous ingredients iron ironstones known largely lignites lime limestones lustre magnesia manganese manures marbles marls masses material metamorphic mineral and metallic mortar nature obtained occasionally occur Oolite ornamental oxide peat phosphate pigments polish porphyries potash preparation purposes pyrites quarries quartz require rocks saline salts sand sandstones schists serpentines shales silica Silurian silver soda sodium soft soils specific gravity stones strata stratified structure subsoils substances sulphate sulphide sulphuric acid surface tellurium tertiary texture thickness tion tons usually varieties various vary veins volcanic yield zinc