Economic Geology: Or, Geology in Its Relations to the Arts and ManufacturesW. Blackwood and sons, 1874 - 336 páginas |
No interior do livro
Resultados 1-5 de 54
Página vii
... hence the origin of the present volume . While primarily intended for the student of Applied Geology , it may be useful to the agriculturist , builder , miner , civil engineer , manufactur- ing chemist , and others who have to deal with ...
... hence the origin of the present volume . While primarily intended for the student of Applied Geology , it may be useful to the agriculturist , builder , miner , civil engineer , manufactur- ing chemist , and others who have to deal with ...
Página 2
... hence an acquaintance with Geology , if he would learn where this or that mineral is to be found , the abundance in which it occurs , and the facilities with which it can be obtained . The minerals and metals are not scattered broadcast ...
... hence an acquaintance with Geology , if he would learn where this or that mineral is to be found , the abundance in which it occurs , and the facilities with which it can be obtained . The minerals and metals are not scattered broadcast ...
Página 10
... hence the occurrence of dykes , as they are termed " soft " in b ບ ບ a Simple fissure ; b Fault ; c Soft dyke ; d Hard dyke ; vv Veins . the former instance , and " hard " in the latter - intersecting and interrupting the continuity ...
... hence the occurrence of dykes , as they are termed " soft " in b ບ ບ a Simple fissure ; b Fault ; c Soft dyke ; d Hard dyke ; vv Veins . the former instance , and " hard " in the latter - intersecting and interrupting the continuity ...
Página 12
... hence the value of their determination in practical Geology . The following table of Specific Gravities may also be of use for future reference : - Agate , - 2.590 Glass , green , 1.714 flint , 2.642 2.760 to 3.000 2.660 to 2.800 1.987 ...
... hence the value of their determination in practical Geology . The following table of Specific Gravities may also be of use for future reference : - Agate , - 2.590 Glass , green , 1.714 flint , 2.642 2.760 to 3.000 2.660 to 2.800 1.987 ...
Página 19
... hence such phrases as " blocks and boulders , " " perched blocks , " & c . Sandstone is simply consolidated sand , the particles having been com- pacted by pressure , or cemented together by lime , clay , iron - oxide , or other ...
... hence such phrases as " blocks and boulders , " " perched blocks , " & c . Sandstone is simply consolidated sand , the particles having been com- pacted by pressure , or cemented together by lime , clay , iron - oxide , or other ...
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
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