Economic Geology: Or, Geology in Its Relations to the Arts and ManufacturesW. Blackwood and sons, 1874 - 336 páginas |
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Página ix
... Chemical and Mineralogical . Mixed Rocks - Classification and Description of . 2. CHRONOLOGICAL ARRANGEMENT OF ROCK FORMA- TIONS , Methods of Determining their Relative Ages . Classification of Stratified Rocks . Classification of ...
... Chemical and Mineralogical . Mixed Rocks - Classification and Description of . 2. CHRONOLOGICAL ARRANGEMENT OF ROCK FORMA- TIONS , Methods of Determining their Relative Ages . Classification of Stratified Rocks . Classification of ...
Página 3
... chemical analysis . Secondly , as the worth of an estate depends not only on its agricultural , but also on its mineral value , the land valuator who is unable to determine the character of its soils and subsoils , and is ignorant of ...
... chemical analysis . Secondly , as the worth of an estate depends not only on its agricultural , but also on its mineral value , the land valuator who is unable to determine the character of its soils and subsoils , and is ignorant of ...
Página 7
... can supply much valuable information , and this without at all infringing on the field of the technologist , whose methods are mainly of a chemical and mechanical nature . II . THE ROCKY CRUST . I. ITS STRUCTURE AND INTRODUCTION . 7.
... can supply much valuable information , and this without at all infringing on the field of the technologist , whose methods are mainly of a chemical and mechanical nature . II . THE ROCKY CRUST . I. ITS STRUCTURE AND INTRODUCTION . 7.
Página 9
... chemical de- posits , as calcareous tufa - and organic growths , like peat - moss and shell - beds are usually classed with the stratified ; while showers of volcanic ashes , and other irregular ejectments , though arranged more or less ...
... chemical de- posits , as calcareous tufa - and organic growths , like peat - moss and shell - beds are usually classed with the stratified ; while showers of volcanic ashes , and other irregular ejectments , though arranged more or less ...
Página 10
... chemical combinations . The slope at which a stratum lies to the horizon constitutes , in geo- logical language , its dip or angle of inclination ; that portion of a stratum which comes to the surface its outcrop or basset - edge ; and ...
... chemical combinations . The slope at which a stratum lies to the horizon constitutes , in geo- logical language , its dip or angle of inclination ; that portion of a stratum which comes to the surface its outcrop or basset - edge ; and ...
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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