Economic Geology: Or, Geology in Its Relations to the Arts and ManufacturesW. Blackwood and sons, 1874 - 336 páginas |
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Página v
... ; ' Handbook of Geological Terms ; ' ' Geology for General Readers , ' & c . & c . WILLIAM BLACKWOOD AND SONS EDINBURGH AND LONDON MDCCCLXXIV All Rights reserved PREFACE . THERE are works on agricultural geology , on Kassell.
... ; ' Handbook of Geological Terms ; ' ' Geology for General Readers , ' & c . & c . WILLIAM BLACKWOOD AND SONS EDINBURGH AND LONDON MDCCCLXXIV All Rights reserved PREFACE . THERE are works on agricultural geology , on Kassell.
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... term are included all its substances , whether hard or soft , superficial or deep - seated -sands , sandstones , clays , shales , peats , coals , limestones , ironstones , lavas , basalts , granites . Whatever their mineral character ...
... term are included all its substances , whether hard or soft , superficial or deep - seated -sands , sandstones , clays , shales , peats , coals , limestones , ironstones , lavas , basalts , granites . Whatever their mineral character ...
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... terms as stratified , bedded , jointed , tabular , columnar , massive , amorphous , & c . The internal arrangement of their particles constitutes their texture , and this , as the case may be , is spoken of as earthy , granular ...
... terms as stratified , bedded , jointed , tabular , columnar , massive , amorphous , & c . The internal arrangement of their particles constitutes their texture , and this , as the case may be , is spoken of as earthy , granular ...
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... term for water - worn rock - fragments larger and less rounded than those of gravel . Shingle beaches are common on the more exposed portions of sea - coasts . Rubble is a convenient and expressive term , applicable to accumulations of ...
... term for water - worn rock - fragments larger and less rounded than those of gravel . Shingle beaches are common on the more exposed portions of sea - coasts . Rubble is a convenient and expressive term , applicable to accumulations of ...
Página 19
... term applied to the more angular masses ; 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 ...
... term applied to the more angular masses ; 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 ...
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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