Report ... |
Dentro del libro
Resultados 1-5 de 30
Página 9
... zone above the 300 - feet level . The main shaft at the Austral Valley Mine is being sunk , and it is intended to sink it to 300 feet , and then open out . The Oonah Mine has been placed under option . The optionees have unwatered it ...
... zone above the 300 - feet level . The main shaft at the Austral Valley Mine is being sunk , and it is intended to sink it to 300 feet , and then open out . The Oonah Mine has been placed under option . The optionees have unwatered it ...
Página 10
... zone of silver - lead mineral . The North Farrell Mining Company is steadily develop- ing its mine , producing galena worth about £ 11 and £ 12 per ton at the mill . Preparations are being made for the construction of a steel tramway ...
... zone of silver - lead mineral . The North Farrell Mining Company is steadily develop- ing its mine , producing galena worth about £ 11 and £ 12 per ton at the mill . Preparations are being made for the construction of a steel tramway ...
Página v
... zone or belt of strata within which they occur maintains a uniform strength for a long stretch of country . It can be understood , accordingly , how unsafe it is to stand on an outcrop and conclude that it is an actual continuation of a ...
... zone or belt of strata within which they occur maintains a uniform strength for a long stretch of country . It can be understood , accordingly , how unsafe it is to stand on an outcrop and conclude that it is an actual continuation of a ...
Página vii
... zone of weathering . The experience of the New Golden Gate and Tasmanian Consols Mines shows that poor reef indications at surface may be replaced in depth by splendid bodies of stone . So long as there is a channel with signs of lode ...
... zone of weathering . The experience of the New Golden Gate and Tasmanian Consols Mines shows that poor reef indications at surface may be replaced in depth by splendid bodies of stone . So long as there is a channel with signs of lode ...
Página ix
... zone of weathering . On this theory , once this zone has been passed through , although the stone will be poorer , there is no reason for anticipating any progressive impoverishment as long as a shoot lasts . The New Golden Gate stone ...
... zone of weathering . On this theory , once this zone has been passed through , although the stone will be poorer , there is no reason for anticipating any progressive impoverishment as long as a shoot lasts . The New Golden Gate stone ...
Términos y frases comunes
12 feet 20 feet 31st December accident acres adit alluvial arsenopyrite Beaconsfield boundary bruises cage carrying channel City of Hobart Coal Company copper Cox's Bight Creek crosscut east crushed depth district Ditto Ditto drive dwts east reef explosives feet feet further feet west feet wide flat fractures further west Gate reefs gelignite gold-bearing Golden Gate gossan granite ground Grubb's shaft Gully hill Hobart inches injured intersected Loane's reef lode Lyell main reef main shaft Mangana Married Mathinna Miner's Dream mineral Mount Cameron Name of Sufferer north and south north-west occur outcrop passed payable prospecting pyrites pyrrhotite quantity quartz quartz veins quartzite reef formation reef-channel Renison Bell rock sandstone schist Section shoot slate sluice South Gate stone stope strata sunk surface Tasmania Gold Tasmanian Consols tion tons truck tunnel underground underlay ventilation west reef western reef width winze Zeehan zone