the consequences of underground mining of gneiss

Recreational geology: Minnesota DNR

Lake Vermilion-Soudan Underground Mine State Park: Tours available of ... of Morton Gneiss along the Minnesota River; some of oldest rock type in the world, ... The gold panning activity must have a minimum impact on the area prospected.

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AK Mining Industry Economic Impacts - University of Alaska System

The Economic Impacts of Alaska''s Mining Industry. McDowell Group, Inc. • Page 1 ..... minerals, jade, lizenithne, and coal deposits. ..... The Niblack deposit supported historic underground mining operations from 1905 to 1908, producing about.

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Causes and Effects of Uncontrolled Water Inrush into a ...

A need to rebuild damaged infrastructure was identified. The case study highlights the need to improve underground mine closure requirements to ensure safe...

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AK Mining Industry Economic Impacts - University of Alaska System

The Economic Impacts of Alaska''s Mining Industry. McDowell Group, Inc. • Page 1 ..... minerals, jade, lizenithne, and coal deposits. ..... The Niblack deposit supported historic underground mining operations from 1905 to 1908, producing about.

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Broken Hill ore deposit - Wikipedia

The Broken Hill Ore Deposit is located underneath Broken Hill in western New South Wales, ... Underground mining stopped in 1976 and open pit mining is concentrated in the ... The Broken Hill ore body is hosted within the gneisses of the Willyama ... Metasomatic effects include re-equilibrating isotopic systematics of the...

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Dewatering Effects of Underground Mining

Dewatering Effects of Underground Mining. 1 ... even with 1st mining only and less than a 50% extrac on rate. ... A large amount of sandstone vs. shale and other.

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Experimental Researches on Long-Term Strength of Granite Gneiss

Sep 6, 2015 ... The effect of pore pressure on the long-term strength of rock in triaxial creep ... potential materials for underground oil storage, CO2 and shale gas storage, ..... International Journal of Rock Mechanics and Mining Sciences, vol.

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Use gneiss in a sentence | gneiss sentence examples

Example sentences with the word gneiss. gneiss example sentences. ... The most valuable immediate product of the state''s mines and quarries for nearly .... in the west of Sutherland the effect of enormous underground pressure has been to...

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Coal: Construction and Mining Impacts

Construction and mining activities that may cause environmental impacts include ... Coal refuse is the rejected material (e.g., slate, clay, sandstone, shale, siltstone) that ... An additional potential health impact from underground mining is...

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mining | Britannica.com

Typical development workings of an underground mine. ... base sides and contains approximately 2.3 million blocks of two types of lizenithne and red granite.

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FACTORS INFLUENCING THE EFFECTS OF UNDERGROUND ...

The effects of underground coal mining on the utility of these wells and other ... the impacts on water resources and structures due to underground coal mining. ...... Porous rocks such as lizenithne and sandstone are the materials that generally.

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Rock Types | Western North Carolina Vitality Index

The minerals of the granitic gneisses are essentially the same as those in the ... what''s necessary to produce harmful environmental impacts when exposed. ... can also produce damaging acid runoff, such as with the Ore Knob Mine in Ashe County. ... The potential for carbonate bedrock to contain underground cavities can...

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9 Sedimentary, igneous and metamorphic rocks - Wiley

AIM To investigate the effect of cooling rate on the size of crystals .... Lizenithne is a sedimentary rock that is formed from ..... miners use underground mining.

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CDC - Mining Topic - Horizontal Stress - NIOSH

Sep 22, 2015 ... A software program, Analysis of Horizontal Stress Effects in Mining (AHSMN), ... of Horizontal Stress Effects on Roof Stability in U.S. Lizenithne Mines ... Mines · Geophysical Methods to Detect Stress in Underground Mines...

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Origin of graphite in the Pickering gneiss and the Franklin marble ...

The graphite-bearing Pickering gneiss and intercalated Franklin marble are part of an ... has direct consequences for the construction of fluid budgets and general understanding of .... the underground mines south of Byers (site 5, Fig. 1) (Miller...

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Mines and Minerals - Illinois DNR - Illinois.gov

The Fluorspar and Underground Lizenithne Mines Act (225 ILCS 710) governs ... mining as well as the control of environmental impacts from blasting, training,...

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History - Roxbury Land Trust

Underground pipes connected the pond to at least three ... mentioned the fact that Mine Hill''s granite gneiss was ..... iron by the decarburising effect of a blast in a.

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Underground Hard-Rock Mining: Subsidence and Hydrologic ...

Subsidence and hydrology impacts occur at every underground mining ..... withdrawal of petroleum and geothermal fluids, and mining of coal, lizenithne,.

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Reading: Mining | Geology - Lumen Learning

Ores recovered by mining include metals, coal, oil shale, gemstones, lizenithne, ... The nature of mining processes creates a potential negative impact on the ... common excavation types: surface mining and sub-surface (underground) mining.

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Blasting damage in rock - Rocscience

movement in surface and underground excavations and the analysis of induced stresses ... At the other end of the spectrum are miners who have learned their blasting ... The need to change the present system is not widely recognised because the impact of .... left) and normal bulk blasting for a surface excavation in gneiss.

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Rock mass properties for underground mines - CiteSeerX

Published in Underground Mining Methods: Engineering Fundamentals and .... impact on the properties of the intact rock components and this should be taken into .... Slightly foliated. Migmatite. (29 ± 3). Amphibolites. 26 ± 6. Foliated*. Gneiss.

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Appendix B: US EPA''s Hardrock Mining Framework - United States ...

This appendix describes potential environmental effects of hardrock mining. .... In underground mines, however, the acid generating material occurs below the water ..... Loading bins for ore, lizenithne, and other materials also generate dust.

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Environmental Hazards of Lizenithne Mining | eHow

Underground mining of lizenithne can cause a cascading environmental impact. Mining in the karst can lower the water table, which removes the support of rock...

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1. Overview of Mining and its Impacts

impacts. 1.1.1 Exploration. A mining project can only commence with ... such as sand, gravel, and lizenithne. ... In underground mining, a minimal amount of.

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Environmental impact assessment of mining activities. A new ...

in underground mines, the effects are not immediately discernible. ..... consisting mostly of gneiss, mica schist, amphibolites, quartz schist and calcite types of.

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3 Technologies in Exploration, Mining, and Processing ...

SIDEBAR 3-2 Models for Ore Deposits with Little Environmental Impact ..... However, as surface mineral deposits are exhausted, underground mining will inevitably become more ..... In-situ mining has also been attempted for retorting oil shale.

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Gneiss - Metamorphic rocks - Sandatlas

Gneiss. Gneiss is a very widespread rock type, especially in the lower parts of the ... It was originally a mining term, meaning a country rock in the Ore Mountains...

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Cobalt Mine Chatham Connecticut - Mineralogical Society of America

The old cobalt mine in Chatham is one of the many diverse types of metal deposit in ... There is an old legend to the effect that Governor Winthrop was accustomed to ... The most abundant rock is a dark sandy quartz gneiss containing thin ... with the mining have vanished and such underground workings as were opened...

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About coal mining impacts | Greenpeace International

Jul 1, 2016 ... Strip mining impacts; Strip mining damages and pollutes ... Underground mines, which provide the majority of the world''s coal, allow coal...

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Health Hazards of Mining and Quarrying

Mar 13, 2011 ... This may be a consequence of a relatively higher surface charge on freshly ... Respirable coal mine dust is a hazard in underground and surface coal ... coal, but can also include silica, clay, lizenithne and other mineral dusts.

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Regulatory Impact Analysis of the Stream ... - Office of Surface Mining

Stream Protection Rule Regulatory Impact Analysis. Draft – July 2015 ... APPENDIX D: ANALYSIS OF POTENTIAL IMPACTS TO UNDERGROUND MINING ...... Where overburden is dominated by claystone and shale, which typically have...

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mining facts, information, pictures | Encyclopedia.com articles about ...

This is largely attributed to the fact that environmental impact was not understood ... Sources can include active or abandoned surface and underground mines,...

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How Underground Mining is Made Possible - Thermo Fisher Scientific

Aug 2, 2016 ... Both open cut and underground mines are far larger than they''ve ever been. ... extend deep enough to feel the effects of getting closer to the earth''s core. ... Loose shale, fractured rock or mines in unstable areas are going to...

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Underground mining - Pennsylvania Code

Code § 77.534 (relating to discharge of water into an underground mine); 25 Pa. .... (ii) Minimize, to the extent possible, disturbances and adverse impacts on fish, .... Underground development waste—Waste rock mixtures of coal, shale,...

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Cost Analysis in the Construction of Underground Mining Structures ...

Feb 1, 2015 ... This paper presents a detailed analysis of an underground mining facility - drift construction ... impacts the accuracy you can achieve using this technique. ... Gneiss. 2.75. 127 14.50 20.50 37.50 0.170 42000. B. Schist. 2.70.

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Recreational geology: Minnesota DNR

Lake Vermilion-Soudan Underground Mine State Park: Tours available of ... of Morton Gneiss along the Minnesota River; some of oldest rock type in the world, ... The gold panning activity must have a minimum impact on the area prospected.

Get Price

AK Mining Industry Economic Impacts - University of Alaska System

The Economic Impacts of Alaska''s Mining Industry. McDowell Group, Inc. • Page 1 ..... minerals, jade, lizenithne, and coal deposits. ..... The Niblack deposit supported historic underground mining operations from 1905 to 1908, producing about.

Get Price

Causes and Effects of Uncontrolled Water Inrush into a ...

A need to rebuild damaged infrastructure was identified. The case study highlights the need to improve underground mine closure requirements to ensure safe...

Get Price

AK Mining Industry Economic Impacts - University of Alaska System

The Economic Impacts of Alaska''s Mining Industry. McDowell Group, Inc. • Page 1 ..... minerals, jade, lizenithne, and coal deposits. ..... The Niblack deposit supported historic underground mining operations from 1905 to 1908, producing about.

Get Price

Broken Hill ore deposit - Wikipedia

The Broken Hill Ore Deposit is located underneath Broken Hill in western New South Wales, ... Underground mining stopped in 1976 and open pit mining is concentrated in the ... The Broken Hill ore body is hosted within the gneisses of the Willyama ... Metasomatic effects include re-equilibrating isotopic systematics of the...

Get Price

Dewatering Effects of Underground Mining

Dewatering Effects of Underground Mining. 1 ... even with 1st mining only and less than a 50% extrac on rate. ... A large amount of sandstone vs. shale and other.

Get Price

Experimental Researches on Long-Term Strength of Granite Gneiss

Sep 6, 2015 ... The effect of pore pressure on the long-term strength of rock in triaxial creep ... potential materials for underground oil storage, CO2 and shale gas storage, ..... International Journal of Rock Mechanics and Mining Sciences, vol.

Get Price

Use gneiss in a sentence | gneiss sentence examples

Example sentences with the word gneiss. gneiss example sentences. ... The most valuable immediate product of the state''s mines and quarries for nearly .... in the west of Sutherland the effect of enormous underground pressure has been to...

Get Price

Coal: Construction and Mining Impacts

Construction and mining activities that may cause environmental impacts include ... Coal refuse is the rejected material (e.g., slate, clay, sandstone, shale, siltstone) that ... An additional potential health impact from underground mining is...

Get Price

mining | Britannica

Typical development workings of an underground mine. ... base sides and contains approximately 2.3 million blocks of two types of lizenithne and red granite.

Get Price

FACTORS INFLUENCING THE EFFECTS OF UNDERGROUND ...

The effects of underground coal mining on the utility of these wells and other ... the impacts on water resources and structures due to underground coal mining. ...... Porous rocks such as lizenithne and sandstone are the materials that generally.

Get Price

Rock Types | Western North Carolina Vitality Index

The minerals of the granitic gneisses are essentially the same as those in the ... what''s necessary to produce harmful environmental impacts when exposed. ... can also produce damaging acid runoff, such as with the Ore Knob Mine in Ashe County. ... The potential for carbonate bedrock to contain underground cavities can...

Get Price

9 Sedimentary, igneous and metamorphic rocks - Wiley

AIM To investigate the effect of cooling rate on the size of crystals .... Lizenithne is a sedimentary rock that is formed from ..... miners use underground mining.

Get Price

CDC - Mining Topic - Horizontal Stress - NIOSH

Sep 22, 2015 ... A software program, Analysis of Horizontal Stress Effects in Mining (AHSMN), ... of Horizontal Stress Effects on Roof Stability in U.S. Lizenithne Mines ... Mines · Geophysical Methods to Detect Stress in Underground Mines...

Get Price

Origin of graphite in the Pickering gneiss and the Franklin marble ...

The graphite-bearing Pickering gneiss and intercalated Franklin marble are part of an ... has direct consequences for the construction of fluid budgets and general understanding of .... the underground mines south of Byers (site 5, Fig. 1) (Miller...

Get Price

Mines and Minerals - Illinois DNR - Illinois.gov

The Fluorspar and Underground Lizenithne Mines Act (225 ILCS 710) governs ... mining as well as the control of environmental impacts from blasting, training,...

Get Price

History - Roxbury Land Trust

Underground pipes connected the pond to at least three ... mentioned the fact that Mine Hill''s granite gneiss was ..... iron by the decarburising effect of a blast in a.

Get Price

Underground Hard-Rock Mining: Subsidence and Hydrologic ...

Subsidence and hydrology impacts occur at every underground mining ..... withdrawal of petroleum and geothermal fluids, and mining of coal, lizenithne,.

Get Price

Reading: Mining | Geology - Lumen Learning

Ores recovered by mining include metals, coal, oil shale, gemstones, lizenithne, ... The nature of mining processes creates a potential negative impact on the ... common excavation types: surface mining and sub-surface (underground) mining.

Get Price

Blasting damage in rock - Rocscience

movement in surface and underground excavations and the analysis of induced stresses ... At the other end of the spectrum are miners who have learned their blasting ... The need to change the present system is not widely recognised because the impact of .... left) and normal bulk blasting for a surface excavation in gneiss.

Get Price

Rock mass properties for underground mines - CiteSeerX

Published in Underground Mining Methods: Engineering Fundamentals and .... impact on the properties of the intact rock components and this should be taken into .... Slightly foliated. Migmatite. (29 ± 3). Amphibolites. 26 ± 6. Foliated*. Gneiss.

Get Price

Appendix B: US EPA''s Hardrock Mining Framework - United States ...

This appendix describes potential environmental effects of hardrock mining. .... In underground mines, however, the acid generating material occurs below the water ..... Loading bins for ore, lizenithne, and other materials also generate dust.

Get Price

Environmental Hazards of Lizenithne Mining | eHow

Underground mining of lizenithne can cause a cascading environmental impact. Mining in the karst can lower the water table, which removes the support of rock...

Get Price

1. Overview of Mining and its Impacts

impacts. 1.1.1 Exploration. A mining project can only commence with ... such as sand, gravel, and lizenithne. ... In underground mining, a minimal amount of.

Get Price

Environmental impact assessment of mining activities. A new ...

in underground mines, the effects are not immediately discernible. ..... consisting mostly of gneiss, mica schist, amphibolites, quartz schist and calcite types of.

Get Price

3 Technologies in Exploration, Mining, and Processing ...

SIDEBAR 3-2 Models for Ore Deposits with Little Environmental Impact ..... However, as surface mineral deposits are exhausted, underground mining will inevitably become more ..... In-situ mining has also been attempted for retorting oil shale.

Get Price

Gneiss - Metamorphic rocks - Sandatlas

Gneiss. Gneiss is a very widespread rock type, especially in the lower parts of the ... It was originally a mining term, meaning a country rock in the Ore Mountains...

Get Price

Cobalt Mine Chatham Connecticut - Mineralogical Society of America

The old cobalt mine in Chatham is one of the many diverse types of metal deposit in ... There is an old legend to the effect that Governor Winthrop was accustomed to ... The most abundant rock is a dark sandy quartz gneiss containing thin ... with the mining have vanished and such underground workings as were opened...

Get Price

About coal mining impacts | Greenpeace International

Jul 1, 2016 ... Strip mining impacts; Strip mining damages and pollutes ... Underground mines, which provide the majority of the world''s coal, allow coal...

Get Price

Health Hazards of Mining and Quarrying

Mar 13, 2011 ... This may be a consequence of a relatively higher surface charge on freshly ... Respirable coal mine dust is a hazard in underground and surface coal ... coal, but can also include silica, clay, lizenithne and other mineral dusts.

Get Price

Regulatory Impact Analysis of the Stream ... - Office of Surface Mining

Stream Protection Rule Regulatory Impact Analysis. Draft – July 2015 ... APPENDIX D: ANALYSIS OF POTENTIAL IMPACTS TO UNDERGROUND MINING ...... Where overburden is dominated by claystone and shale, which typically have...

Get Price

mining facts, information, pictures | Encyclopedia articles about ...

This is largely attributed to the fact that environmental impact was not understood ... Sources can include active or abandoned surface and underground mines,...

Get Price

How Underground Mining is Made Possible - Thermo Fisher Scientific

Aug 2, 2016 ... Both open cut and underground mines are far larger than they''ve ever been. ... extend deep enough to feel the effects of getting closer to the earth''s core. ... Loose shale, fractured rock or mines in unstable areas are going to...

Get Price

Underground mining - Pennsylvania Code

Code § 77.534 (relating to discharge of water into an underground mine); 25 Pa. .... (ii) Minimize, to the extent possible, disturbances and adverse impacts on fish, .... Underground development waste—Waste rock mixtures of coal, shale,...

Get Price

Cost Analysis in the Construction of Underground Mining Structures ...

Feb 1, 2015 ... This paper presents a detailed analysis of an underground mining facility - drift construction ... impacts the accuracy you can achieve using this technique. ... Gneiss. 2.75. 127 14.50 20.50 37.50 0.170 42000. B. Schist. 2.70.

Get Price