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The Mount Nansen ore deposit consists of a system of narrow steeply dipping veins in metamorphic rocks of Precambrian to Paleozoic age, andesitic volcanics and granodioritic to granitic intrusives of Mesozoic age, and Cretaceous to early Tertiary dacitic porphyries.
Mining of Narrow Steeply Dipping Veins Mining of Narrow Steeply Dipping Veins By B E Hall1 Introduction Many mineral deposits occur as steeply dipping narrow veins. In the past, these have been worked either by high cost labour intensive methods which are able to follow the vein with minimal dilution for high grade production, or by lower cost
Kundana is one of Australia's most successful examples in mechanized mining of narrow vein deposits. This particularly noteworthy in the Strzelecki deposit which dips at only some 50°, has widths ...
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 .
Vein / narrow vein; ... steeply northwest dipping fault-fill veins. This vein morphology and structural framework is commonly observed in shear zone hosted gold deposits, where the shallow dipping extension veins are less laterally extensive, and the steeper fault-fill veins may display a large vertical extent. ... The Leprechaun pit design ...
Re-engineering the Elkon Deposit Elkon in South Yakutia, East Russia, is the world's largest known, undeveloped uranium deposit. It occurs as a series of narrow sub-parallel, steeply-dipping veins located within the Yuzhnaya fault zone, covering a strike length of some 20km and extending from about 100m to 1600m below surface.
used in steeply dipping competent ore veins with weak walls; sued for wide vein deposits square set stoping expensive form of stoping where interlocking timber sets are emplaced as each block of ore is removed and waste rock is dumped into completely timbered areas; used only if the ore is rich enough to justify the high cost of labor and timber
The company's technology-focused subsidiary thinks a combination of drilling and imaging techniques already proven in the oil & gas industry will provide the technical and economical means to mine the steeply dipping narrow vein mineralisation at the deposit.
The present invention is directed to a mining method for steeply dipping orebodies. In the method, an excavator 152 is tethered to a deployment system 120 by one or more cables/umbilicals 144 . The excavator 152 excavates slices 172 a-h of the orebody 100 by moving generally up-dip, down-dip or a combination thereof. The excavator can be automated.
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.
The dip of the orebody also has an influence on the mining method for example a narrow horizontal vein orebody will be mined by room and pillar or a longwall method whereas a vertical narrow vein orebody will be mined by an open stoping or cut and fill method. Further consideration is needed for the strength of the ore as well as the ...
Jun 21, 2017· Federal and Provincial funding will offset the technical and financial risks of developing and optimizing a Narrow Vein Mining system for use in steeply-dipping narrow gold veins.
A prime example is Anaconda's Romeo and Juliet prospect at the Point Rousse project, where the company has an operating mill. Romeo and Juliet is a steeply dipping, gold-bearing quartz vein ...
The introduction of electric hydraulic equipment has provided a better working environment with reduced noise, exhaust fumes and heat. The concept of the "hydraulic cherry picker" may have application in mining steeply dipping orebodies. The system requires orebodies to be reasonably consistent in dip over 15 metre sub-level intervals.
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 mining where the overhand cut-and-fill method is applied as the most .
Anaconda Mining Inc. 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.
Anaconda Mining partners in innovative narrow vein mining research project Posted by John on 23rd June 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.
Federal and provincial funding will offset the technical and financial risks of developing and optimising a narrow-vein mining system for use in steeply dipping narrow gold veins. If successfully developed, this technology has the potential to be used for similar mineral properties owned by Anaconda and other gold deposits throughout Atlantic ...
30 Vein is located approximately 1.6 km (1 mile) north of the Lucky Friday Vein. Underhand mining using teleremote continuous mechanical cutting. All mining activity was transferred from the Lucky Friday vein to the 30 Vein (and associated parallel veins) in the late 1990s, with access to the 30 Vein via horizontal haulage drives from the
Jun 19, 2003· FIELD OF THE INVENTION The present invention relates generally to mining valuable mineral and/or metal deposits and specifically to mining steeply dipping valuable mineral and/or metal deposits. BACKGROUND OF THE INVENTION Considerable amounts of valuable metals are contained in steeply dipping ore bodies, particularly narrow vein deposits.
mining of narrow steeply dipping veins - . mining of narrow steeply dipping veins. We produce parts and components for the shearer and boring machine manufacturers, and provide technical services, and provide shearer picks, import shearer picks, import boring machine picks, German import picks, rotary pick cut Teeth, Pittec picks and other coal mining equipment machinery.
Oct 23, 2011· Application of different mining methods in steeply dipping narrow vein deposits Walls Stability Instable Stable Ore stability Instables Stables Undercut-and-full filling Cut-and-fill Continuous bench backfilling Sublevel stoping Shrinkage Undercut-and-partiaml filling 57.
A prime example is Anaconda's Romeo and Juliet prospect at the Point Rousse project, where the company has an operating mill. Romeo and Juliet is a steeply dipping, gold-bearing quartz vein ...
thesis is a case study of the Lapa Mine of Agnico Eagle Mines Limited, a gold mining operation situated in the Abitibi region of Quebec. The Lapa orebody is a narrow vein, steeply dipping deposit with varying width, and is extracted with longitudinal retreat mining method.
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