An Introduction to Economic Geology and Its Environmental ImpactAs it has grown in length and level through successive edtions, the same author's Introduction to Ore Geology (now Ore Geology and Industrial Minerals) has left behind its original audience: first- and second -ear students. This new textbook, designed to fill that niche , was written specifically for introductory courses. Introduction to Economic Geology and Its Environmental Impact covers oil, coal, water and nuclear fuels, as well as economically important ores and bulk minerals. In keeping with current concerns and constraints, particular attention is paid to the impact of mining and drilling on the environment |
From inside the book
Page 9
... surface have nearly all been found. The deposits we now search for are largely concealed and require sophisticated exploration methods to find them. We usually refer to the target material in these deposits as ore, unless we use a more ...
... surface have nearly all been found. The deposits we now search for are largely concealed and require sophisticated exploration methods to find them. We usually refer to the target material in these deposits as ore, unless we use a more ...
Page 22
... surface can be worked by cheap open pit methods (Fig. 2.8) whilst thin tabular vein deposits will necessitate more expensive underground methods of extraction, although generally they can be worked in much smaller volumes so that a ...
... surface can be worked by cheap open pit methods (Fig. 2.8) whilst thin tabular vein deposits will necessitate more expensive underground methods of extraction, although generally they can be worked in much smaller volumes so that a ...
Page 25
... Tm 0.000 2 0.5 2500 Chromium 0.01 . 30 3000 Lead 0.001 4 4000 Gold 0.000000 4 0.0001' 250 * 1 ppm. SURFACE UPPER QUARTZlTES - ~~~~~~~ Mrs“ Pyrrhotite Albitization Tourmalinization Chloritization. MINERAL ECONOMICS / 25.
... Tm 0.000 2 0.5 2500 Chromium 0.01 . 30 3000 Lead 0.001 4 4000 Gold 0.000000 4 0.0001' 250 * 1 ppm. SURFACE UPPER QUARTZlTES - ~~~~~~~ Mrs“ Pyrrhotite Albitization Tourmalinization Chloritization. MINERAL ECONOMICS / 25.
Page 28
... surface. More developed countries have a greater proportion of disturbed ground than the less developed. The degree of reclamation of this ground is now accelerating rapidly and good use being made of many old holes for the disposal of ...
... surface. More developed countries have a greater proportion of disturbed ground than the less developed. The degree of reclamation of this ground is now accelerating rapidly and good use being made of many old holes for the disposal of ...
Page 29
... surface waters with Co, Mn, Ni, Pb and Zn as a result of the cyanidation process and oxidation by acid mine waters. Cyanide itself is not a problem as it breaks down under the influence of ultraviolet light in near surface layers ...
... surface waters with Co, Mn, Ni, Pb and Zn as a result of the cyanidation process and oxidation by acid mine waters. Cyanide itself is not a problem as it breaks down under the influence of ultraviolet light in near surface layers ...
Contents
1 | |
Part 2 Examples of the More Important Types of Ore Deposit | 83 |
Part 3 Mineralization in Time and Space | 319 |
Index | 353 |
Other editions - View all
An Introduction to Economic Geology and Its Environmental Impact Anthony M. Evans No preview available - 2009 |
An Introduction to Economic Geology and Its Environmental Impact Anthony M. Evans No preview available - 1997 |
Common terms and phrases
acid aquifers Archaean areas associated Australia banded iron formation baryte basins beds Bushveld Complex carbonate carbonatite chalcopyrite chemical chromite clay coal Complex concentration contain continental country rocks crust crystals deposit type deposits occur dolomite economic environment evaporites example exploitation facies faults fields first fluid fracturing Geology geothermal gold grade grains granites ground water heavy minerals host rocks hydrothermal igneous important industrial minerals intrusions iron formation isotopic kimberlite komatiitic lamproites layers lead limestone magma magnetite manganese massive sulphide deposits material metamorphic mining molybdenum nickel oceanic orebodies oxide pegmatites peridotite Phanerozoic phosphate plutonic porphyry copper deposits Precambrian precipitation present processes production Proterozoic pyrite quartz region reserves sand sandstone Section sedimentary sediments shale significant silicate skarn stockwork stratiform sulphide sulphur surface temperature thick tion tonnage ultrabasic uranium usually veins volcanic wall rock alteration water table zone