mining of narrow steeply dipping veins

  • Anaconda investigates narrow vein tech Mining Magazine

    PRESS RELEASE: Anaconda Mining has announced the start of a research and development project to develop, prototype and optimise a new technology to mine steeply dipping narrow gold veins, which cannot be mined cost effectively with existing technologies. Staff reporter; 26 Jun 2017; 10:48; News. Share.

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  • Exploration and development of small mines The Arizona .

    ARIZONA BUREAU OF MINES. MINERAL TECHNOLOGY SERIES No. 48. BULLETIN No. 164. EXPLORATION AND DEVELOPMENT. OF SMALL MINES. ARIZONA BUREAU OF .. Squale set stoping in narrow veins. 31. EXPLORATION chanical or hand means, whereas ore from steeply dipping veins will move to the.

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  • MVM1100 Narrow Vein Mining YouTube

    Jul 11, 2013 . Mechanised narrow vein mining.

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  • Narrow Vein Mining . Medusa Mining

    They are generally less than 3 metres wide, discordant, of variable dip, variable width and commonly displaced by faults. Hence many operators of narrow vein mines use drilling to initially locate the veins and to estimate Inferred Resources, but use infill drilling and underground development along the veins to raise the.

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  • Anaconda investigates narrow vein tech Mining Magazine

    PRESS RELEASE: Anaconda Mining has announced the start of a research and development project to develop, prototype and optimise a new technology to mine steeply dipping narrow gold veins, which cannot be mined cost effectively with existing technologies. Staff reporter; 26 Jun 2017; 10:48; News. Share.

    Get Price
  • The Narrow Vein Dilution Method UQ eSpace University of .

    wide, with a dip exceeding 50 to 55 degrees (an angle at which broken ore can be . parameters (steep section of S curve) over a small range of model parameters, and . STRATEGIES FOR MINIMISING AND PREDICTING DILUTION IN NARROW VEIN MINES THE NARROW VEIN DILUTION METHOD. 1.00. 0.50. 0.00.

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  • Narrow Vein Mining Anaconda Mining

    Narrow Vein Mining. The main objective of the Narrow Vein Mining project is the development, prototyping and optimization of a new technology to facilitate the mining of steeply dipping narrow veins, including the Romeo & Juliet Deposit and Deer Cove Deposit, located at the Point Rousse Project. Newfoundland is host to.

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  • Angry Geologist: Narrow gold veins a photo guide

    May 10, 2016 . It can be hard to selectively mine a narrow vein, so all of the surrounding waste (A and C) will need to be mined with the ore (B). For very narrow . within the vein. As you can see, vein angle of dip can have a huge impact on dilution, compare a vertical vein (below) with the shallowly dipping veins above.

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  • Suitability of the overhand cut and fill mining method for narrow vein .

    Abstract: Vein type carbon rich graphite deposits found in Sri Lanka occur in metamorphic rocks as narrow steeply dipping veins. These graphite deposits are mined by underground mining, mostly by applying the overhand cutandfill method. Graphite mining at Bogala mines, Sri Lanka, is a unique example of narrow vein.

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  • Anaconda Mining partners in innovative narrow vein mining .

    Jun 23, 2017 . Anaconda Mining has commenced a research and development project to develop, prototype and optimize a new technology to mine steeply dipping narrow gold veins, that cannot be mined cost effectively with existing technologies. The company has subcontracted expertise of the Faculty of Engineering.

    Get Price
  • Benchmark narrow vein dilution Petra Data Science

    In narrow vein mining it is often not possible to limit stope width to the vein width when utilising blasting for .. narrow vein longhole stoping practices. The mining sequence is schematically represented in Fig. 3. The benchmark narrow vein stoping widths proposed .. more dilution than steeply dipping simple tabular veins.

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  • Long hole drilling for the platinum industry a mining . SAIMM

    steeply dipping wide reefs and boxhole/raise developments worldwide. . For this to be possible, it is essential that the mine design and layout match the mining Processing, University of British Columbia, 1988. 343 pp. 5. RUPPRECHT, S.M. Long hole drilling in narrow vein mining. Paper presented at MPES 2004.

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  • The Narrow Vein Dilution Method UQ eSpace University of .

    wide, with a dip exceeding 50 to 55 degrees (an angle at which broken ore can be . parameters (steep section of S curve) over a small range of model parameters, and . STRATEGIES FOR MINIMISING AND PREDICTING DILUTION IN NARROW VEIN MINES THE NARROW VEIN DILUTION METHOD. 1.00. 0.50. 0.00.

    Get Price
  • Exploration and development of small mines The Arizona .

    ARIZONA BUREAU OF MINES. MINERAL TECHNOLOGY SERIES No. 48. BULLETIN No. 164. EXPLORATION AND DEVELOPMENT. OF SMALL MINES. ARIZONA BUREAU OF .. Squale set stoping in narrow veins. 31. EXPLORATION chanical or hand means, whereas ore from steeply dipping veins will move to the.

    Get Price
  • Types of Underground Mining Method Comparison 911 Metallurgist

    Apr 4, 2017 . The waste that can be sorted in the stope if the vein is steep is limited to what can be thrown on lagging supported by stulls. . chance of the method being adopted under ordinary labor conditions, but I have examined mines where the combination of conditions in narrow veins indicates very strongly that the.

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  • 1 Reducing Selectivity in Narrow Vein Mining through the . InfoMine

    Consider a deep, steeply dipping, narrow tabular orebody as shown in Figure 1. The orebody is deep, and thus a low cost of mining is critical to the feasibility of exploiting this resource. Due to the geometry of the orebody, typically a narrow vein mining method such as longwall stoping or drift and fill would be preferred.

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  • 1 Reducing Selectivity in Narrow Vein Mining through the . InfoMine

    Consider a deep, steeply dipping, narrow tabular orebody as shown in Figure 1. The orebody is deep, and thus a low cost of mining is critical to the feasibility of exploiting this resource. Due to the geometry of the orebody, typically a narrow vein mining method such as longwall stoping or drift and fill would be preferred.

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  • MEQB REGIONAL COPPER NICKEL

    morphosed schist, graywacke and slate. Shrinkage Stoping Shrinkage stoping (Fig. 9 13) is used to mine narrow or wide veins, and sometimes bedded deposits that are steeply dipping. This mining method basically is an overhand stoping system in which a portion of the broken are accumulates until the stope is completed.

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  • Benchmark narrow vein dilution Petra Data Science

    In narrow vein mining it is often not possible to limit stope width to the vein width when utilising blasting for .. narrow vein longhole stoping practices. The mining sequence is schematically represented in Fig. 3. The benchmark narrow vein stoping widths proposed .. more dilution than steeply dipping simple tabular veins.

    Get Price
  • British Mining No 57 Memoirs 1996 pp150 170 Northern Mine .

    Geology and mining of complex narrow veins in south west England: an example from . east north east trending and steeply dipping veins hosted in larger lode zones. . and some consider veins up to six metres wide as narrow. Wider veins such as the copper bearing Anaconda Vein (Butte, Montana) display an average.

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  • Mining Underground mining . Britannica

    For steeply dipping ore bodies, such as the one illustrated in the figure, this means having as large a distance as possible between production levels. The resulting larger openings would .. In small, narrow vein deposits, tracked or rubber tired overshot loaders are often employed. After the bucket of this machine is filled by.

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  • B. Underground mining

    This screening out method of mining (= highgrading) which follows only the rich portions of ore veins is a form of destructive exploitation which can lead to substantial macro economic damages. .. In steeply dipping or massive deposits, the mineralization can extend beyond the chamber boundaries in all directions.

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  • Using Geostatistics to Estimate the Resources of a Narrow Vein .

    The Poura Mine in Burkina Faso, West Africa consists of steeply dipping, gold silver mineralized quartz veins. The structure has a strike length of two kilometres and an average vein thickness of about two metres. This resource estimate concentrated on the remnant ore blocks and pillars in the underground workings.

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  • LONG HOLE BLASTING PRACTICES IN A NARROW VEIN DEPOSIT

    Request (PDF) . LONG HOLE BLASTING P. . In most instances, the preferred mining methods in steeply dipping narrow vein deposits are selective methods such as cut and fill or shrinkage. The main advantage of these methods lies in the higher degree of control over dilution that can be achieved. However, where ore.

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  • Underground mining (hard rock) Wikipedia

    The orebody can be narrow vein such as a gold mine in the Witwatersrand, the orebody can be massive similar to the Olympic Dam mine, South Australia, or Cadia Ridgeway Mine, New South Wales. The width or size of the orebody is determined by the grade as well as the distribution of the ore. The dip of the orebody also.

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  • Narrow Vein Mining . Medusa Mining

    They are generally less than 3 metres wide, discordant, of variable dip, variable width and commonly displaced by faults. Hence many operators of narrow vein mines use drilling to initially locate the veins and to estimate Inferred Resources, but use infill drilling and underground development along the veins to raise the.

    Get Price
  • Narrow Vein Mining Anaconda Mining

    Narrow Vein Mining. The main objective of the Narrow Vein Mining project is the development, prototyping and optimization of a new technology to facilitate the mining of steeply dipping narrow veins, including the Romeo & Juliet Deposit and Deer Cove Deposit, located at the Point Rousse Project. Newfoundland is host to.

    Get Price
  • Anaconda Mining partners in innovative narrow vein mining .

    Jun 23, 2017 . Anaconda Mining has commenced a research and development project to develop, prototype and optimize a new technology to mine steeply dipping narrow gold veins, that cannot be mined cost effectively with existing technologies. The company has subcontracted expertise of the Faculty of Engineering.

    Get Price
  • LONG HOLE BLASTING PRACTICES IN A NARROW VEIN DEPOSIT

    Request (PDF) . LONG HOLE BLASTING P. . In most instances, the preferred mining methods in steeply dipping narrow vein deposits are selective methods such as cut and fill or shrinkage. The main advantage of these methods lies in the higher degree of control over dilution that can be achieved. However, where ore.

    Get Price
  • Underhand Cut and Fill Mining as Practiced in Three Deep . CDC

    mines today. This method reduced the time and cost of preparing the stope for cemented backfill significantly and made the underhand method a viable alternative to traditional overhand mining methods for steeply dipping veins. The underhand design differs from the overhand cut and fill design (Figure 1) in that it requires.

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