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 5
... for burning the lime , each provided with winding roads running up its sides , or with great bridge - like approaches from the hill - side , form a curious feature in the landscape . These are COAL - FIELD OF ANCENIS . 5.
... for burning the lime , each provided with winding roads running up its sides , or with great bridge - like approaches from the hill - side , form a curious feature in the landscape . These are COAL - FIELD OF ANCENIS . 5.
Página 12
... Running southwards from Aubin , parallel to the escarpment of the oolites , and at no great distance , is a ridge of granite , at whose contact with the stratified rocks are numerous metalliferous veins of great promise ; and as this is ...
... Running southwards from Aubin , parallel to the escarpment of the oolites , and at no great distance , is a ridge of granite , at whose contact with the stratified rocks are numerous metalliferous veins of great promise ; and as this is ...
Página 17
... run in upon the coal at its crop . As much as could be carried off thus without timbering , shafts , or cross - cuts , has been already removed , and the result has been to some extent injurious to the upper part of the remaining coal ...
... run in upon the coal at its crop . As much as could be carried off thus without timbering , shafts , or cross - cuts , has been already removed , and the result has been to some extent injurious to the upper part of the remaining coal ...
Página 20
... being worked from adit levels run in from the bottom of steep ground near a stream . It has already been mentioned that a granitic axis extends parallel to and near the Aveyron valley ranging southwards from 20 FRANCE .
... being worked from adit levels run in from the bottom of steep ground near a stream . It has already been mentioned that a granitic axis extends parallel to and near the Aveyron valley ranging southwards from 20 FRANCE .
Página 23
... runs parallel to the course of the stream , we see from the crest of this hill another parallel to it , rising almost immediately , with the intervention only of a ... running directly into the hill . The COPPER AND LEAD OF AVEYRON . 23.
... runs parallel to the course of the stream , we see from the crest of this hill another parallel to it , rising almost immediately , with the intervention only of a ... running directly into the hill . The COPPER AND LEAD OF AVEYRON . 23.
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.