Scenery, Science and Art: Being Extracts from the Note-book of a Geologist and Mining EngineerJ. Van Voorst, 1854 - 323 páginas |
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Página 9
... it is a noble and beautiful sheet of water , rich in all that can please the eye and gratify the taste of the traveller who has a love of the picturesque . 10 CHAPTER THE SECOND . THE MINERAL BASINS AND LIMESTONE VALLEY OF THE ERDRE . 9.
... it is a noble and beautiful sheet of water , rich in all that can please the eye and gratify the taste of the traveller who has a love of the picturesque . 10 CHAPTER THE SECOND . THE MINERAL BASINS AND LIMESTONE VALLEY OF THE ERDRE . 9.
Página 11
... rich , and of great thickness , have not been found near enough to the coal - fields to allow of profitable working without high protective duties , almost ex- cluding the possibility of foreign competition on a large scale . The ...
... rich , and of great thickness , have not been found near enough to the coal - fields to allow of profitable working without high protective duties , almost ex- cluding the possibility of foreign competition on a large scale . The ...
Página 18
... rich and valuable hydrous oxide from Perigord , and some other very rich peroxides combined with silica , from Lunel . The jurassic rocks on both sides of the Aubin coal - field are remarkably rich in ferruginous deposits in the ...
... rich and valuable hydrous oxide from Perigord , and some other very rich peroxides combined with silica , from Lunel . The jurassic rocks on both sides of the Aubin coal - field are remarkably rich in ferruginous deposits in the ...
Página 19
... rich ochraceous portions may be noticed . In the state in which I saw it , this bed would give at least ten thousand tons of ore ( equivalent to two thousand tons of iron ) to the acre , and many square leagues of country are available ...
... rich ochraceous portions may be noticed . In the state in which I saw it , this bed would give at least ten thousand tons of ore ( equivalent to two thousand tons of iron ) to the acre , and many square leagues of country are available ...
Página 21
... rich in mineral veins , often of large dimen- sions , some containing marked indications of argentiferous galena , others certainly rich for copper near the surface . This latter metal appears to have been obtained formerly in large ...
... rich in mineral veins , often of large dimen- sions , some containing marked indications of argentiferous galena , others certainly rich for copper near the surface . This latter metal appears to have been obtained formerly in large ...
Outras edições - Ver tudo
Scenery, Science and Art: Being Extracts from the Note-book of a Geologist ... David Thomas Ansted Visualização integral - 1854 |
Scenery, Science and Art: Being Extracts from the Note-book of a Geologist ... David Thomas Ansted Visualização integral - 1854 |
Scenery, Science and Art: Being Extracts from the Note-book of a Geologist ... David Thomas Ansted Visualização integral - 1854 |
Palavras e frases frequentes
abundant Algiers Alpujarras Amposta appears Aubin Aveyron bands basalt beauty beds Berja Cagliari chain character Cheliff Cherchel chiefly Chiffa coal coal-field coast coloured commenced considerable consists constructed copper crossing cultivated Délémont deposits distance district east Ebro elevation entering exist extending extremely feet France French gorge gossan granite ground hills houses inhabitants interesting interior island Kanawha kind labour land less limestone lode lofty Madrid Mediterranean miles mineral mines Moorish mountains Mouzäia natural nearly numerous obtained occasionally occupied Ohio oolite passing peculiar picturesque Pittsburg plains Porrentruy present principal Pyrenees pyrites quantity quartz range reached remarkable rich ridge rising river road rocks Rodez Roman Sahel sandstone Sardinia scenery schists seams seen shales side Sierra Nevada soon Spain Spanish stream surface Tarragona Tenez tertiary thickness tion town tract traveller valley various vegetation veins village walls whole
Passagens conhecidas
Página 292 - The ore in both cases is an auriferous pyrites, occurring in a whitish or white schist. The vein is worked at a depth of 90 feet or thereabouts, but has been proved to 160, and remains uniform. It yields about 6 dwts.