Economic Geology: Or, Geology in Its Relations to the Arts and ManufacturesW. Blackwood and sons, 1874 - 336 páginas |
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Página 8
... occur in two main positions -stratified or bedded , and unstratified or eruptive . Reason- ing from the manner in which rock - matter is deposited at the present day in lakes , estuaries , and seas , the stratified are re- garded as of ...
... occur in two main positions -stratified or bedded , and unstratified or eruptive . Reason- ing from the manner in which rock - matter is deposited at the present day in lakes , estuaries , and seas , the stratified are re- garded as of ...
Página 10
... occur , as may be seen in our sea - cliffs , ravines , and railway cuttings , in inclined , bent , and contorted positions , and more or less rent and fissured - some portions being thrown up and others thrown down , or , in technical ...
... occur , as may be seen in our sea - cliffs , ravines , and railway cuttings , in inclined , bent , and contorted positions , and more or less rent and fissured - some portions being thrown up and others thrown down , or , in technical ...
Página 11
... occur as unstratified or amor- phous masses , and as regards their relations to the strata through which they pass are spoken of as disrupting , or breaking through ; overlying , having flowed over ; interstratified , having flowed over ...
... occur as unstratified or amor- phous masses , and as regards their relations to the strata through which they pass are spoken of as disrupting , or breaking through ; overlying , having flowed over ; interstratified , having flowed over ...
Página 14
... occur in many kinds , as granites , porphyries , basalts , greenstones , sand- stones , limestones , & c . ; while the known chemical elements amount to sixty - five or sixty - six , some being metallic , as gold , silver , lead - some ...
... occur in many kinds , as granites , porphyries , basalts , greenstones , sand- stones , limestones , & c . ; while the known chemical elements amount to sixty - five or sixty - six , some being metallic , as gold , silver , lead - some ...
Página 15
... occur in ts , greenstones , sand- 1 chemical elements g metallic , as gold , liquids , as sulphur , or aeriform , as ... occurring in the free or uncombined state . SIMPLE GROUP - Gold , silver , platinum , palladium , mercury , copper ...
... occur in ts , greenstones , sand- 1 chemical elements g metallic , as gold , liquids , as sulphur , or aeriform , as ... occurring in the free or uncombined state . SIMPLE GROUP - Gold , silver , platinum , palladium , mercury , copper ...
Outras edições - Ver tudo
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
abundant admixture agricultural alumina amount antimony arsenic artificial arts and manufactures basalts beds bismuth bituminous blocks borax Britain calcareous carbonate carbonic acid Carboniferous cements chalk chemical chiefly chloride clay coal colour compact composition consists containing copper crust crystalline crystals deposits Derbyshire districts durable earth employed engineer extensively felspar fire-clay formations gems geologist Geology gold granites greenstones grits gypsum hard heat hence hydraulic ingredients iron ironstones known lignites lime limestones lustre magnesia manganese manures marbles masses material metamorphic mineral and metallic mortar nature obtained occasionally occur Oolite ornamental oxide peat pigments polishing 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 springs stones strata stratified structure substances sulphate sulphide sulphuric acid surface tertiary texture thickness tints tion tons usually varieties various vary veins volcanic yellow yield zinc