gold narrow reef mining methods

Major Mines Projects Masimong Mine

The economic reef horizons extracted are the Basal Reef and the B Reef. Basal Reef accounts for approximately 80 of the on-reef production profile and is mined on open and undercut operations depending on whether the reef is overlain by shale. B Reef mining makes up the remaining 20 of the on reef production profile.

Non-explosive rock breaking Mining all of the reef all

Jan 21 2020 · This article first appeared in Mining Review Africa Issue 12 2019 Read the full digimag here or subscribe to receive a print copy here. South Africa s reef deposits especially gold and platinum-bearing ore bodies are narrow and tabular.

Blyvoor Gold MineMining Technology Mining News and

Blyvoor is an underground mine. Ore is mined using conventional drill blast and scape narrow-reef mining methods. Due to combined operations at Blyvoor and Doornfontein ores have become accessible through a number of methods. Besides underground operations gold is also produced from waste rock stockpiles and through retreatment of surface

Definition Of Flat Tabular Reef In Gold Mining

gold narrow reef mining methodsdelhaizezoersel . gold narrow reef mining methods Narrow reef precious metals mining at a crossroads In chrome and platinum mining where the dip is generally not more than 100 30 million tons a year are being mined using mechanised low profile room and pillar mining method in narrow reef orebodies.

Miniveyor Narrow Reef Mining

If you are a Gold mining operation or Platinum miner then you will be concerned with the economic challenges facing the narrow reef hard rock sector in Mining. If you are looking to move to a Harvesting operation of your current assets or improve your vamping

Target Gold Mine Free State mining-technology

MINING METHODS. From the outset Avgold planned Target to be highly mechanised using long-hole stoping where reef widths allow this and either cut-and-fill or long-hole stoping in narrow reef areas. Broken ore is handled using remote-controlled load-haul-dump machines. Drift-and-fill mining is used in flat-lying reef areas.

Narrow Vein Mining Methods and Geologic Grade-Control

Narrow Vein Mining Methods and Geologic Grade-Control on the JM-Reef Pd/Pt Deposit. J-M Reef PGM Production Pd/Pt (3.4 1) are our primary target elements hosted as copper nickel gold silver. Worldwide PGM Production SMC is the only U.S. producer of PGMs and the largest primary producer outside of South Africa and the Russian Federation

Lecture 4 Underground MiningSlideShare

Nov 02 2011 · Underground mining Underground mining methods. Lecture 4 Underground Mining 1. Hassan Z. Harraz hharraz2006 yahoo 2010- 2011 This material is intended for use in lectures presentations and as handouts to students and is provided in Power point format so as to allow customization for the individual needs of course instructors.

Optimization of blasting in narrow reef mines in South

Mar 27 2017 · Abstract A sequence of interventions was conducted at Kopanang Mine with the aim of optimizing the blasting process and thereby achieving enhanced workplace safety improved explosive efficiency reduced blasting cost and reduced emission of noxious gasses. The programme began with conversion from capped fuse-igniter cord initiated blasts of ANFO. It moved through the use of

How Is Platinum Mined History and Practices

Platinum Mining Methods. How Is Platinum Mined Originally pgm was extracted using "the narrow reef method" in which miners use handheld pneumatic drills to create holes in the reef into which explosives can be loaded. After the ore is released through blasting it is removed using scrapers attached to wenches and transported to the

Narrow-reef precious metals mining at a crossroads

In chrome and platinum mining where the dip is generally not more than 100 30-million tons a year are being mined using mechanised low-profile room-and-pillar mining method in narrow-reef orebodies.

Quartz Reef Mining Mining Techniques Surface Mining

Quartz Reef Mining. Primary gold typically happens in quartz veins. The removal of gold ore from these tough quartz veins was traditionally referred to as quartz reef mining. A Prussian engineer Jacob Brache was the foremost to feel that quartz reefs may have even more gold than alluvial fields.

Great MiningIt s all about Mining Techniques

Gold mining consists of the processes and techniques employed in the removal of gold from the ground. Earlier gold was mined using different methods like Panning cradling dry blowing shaft mining Puddling and dredging. Nowadays open cut mining and underground methods are used for gold mining.

How Is Platinum Mined History and Practices

Platinum Mining Methods. How Is Platinum Mined Originally pgm was extracted using "the narrow reef method" in which miners use handheld pneumatic drills to create holes in the reef into which explosives can be loaded. After the ore is released through blasting it is removed using scrapers attached to wenches and transported to the

RESOURCES AND RESERVES BY OPERATION SOUTH

RESOURCES AND RESERVES BY OPERATION SOUTH AFRICAFREE STATE CONTINUED Mining methods and mine planning The stoping methods can be grouped into long-hole stoping and development mining techniques as follows Long-hole stoping methods Massive open Narrow-reef conventional Wide open Development methods Drift and fill Cut and fill

Gold Production to Restart in Tennant Creek

Aug 11 2015 · Gold Production to Restart in Tennant Creek More recent exploration in the Edna Beryl area 1996 betweenand 2000 by Giants Reef Mining outlined are narrow vein mining specialists with over 50years of combined mining and mine management experience. The princip of EMBC are very familiar with the als

RESOURCES AND RESERVES BY OPERATION SOUTH

RESOURCES AND RESERVES BY OPERATION SOUTH AFRICAFREE STATE CONTINUED Mining methods and mine planning The stoping methods can be grouped into long-hole stoping and development mining techniques as follows Long-hole stoping methods Massive open Narrow-reef conventional Wide open Development methods Drift and fill Cut and fill

Narrow-reef precious metals mining at a crossroads

In chrome and platinum mining where the dip is generally not more than 100 30-million tons a year are being mined using mechanised low-profile room-and-pillar mining method in narrow-reef orebodies.

Lecture 4 Underground MiningSlideShare

Nov 02 2011 · Underground mining Underground mining methods. Lecture 4 Underground Mining 1. Hassan Z. Harraz hharraz2006 yahoo 2010- 2011 This material is intended for use in lectures presentations and as handouts to students and is provided in Power point format so as to allow customization for the individual needs of course instructors.

Age of the machinesMIning Decisions

The company s mine plan calls for the addition of large mechanised mining equipment including 14 ton and 17 ton load-haul-dump machines and 50 ton haul trucks to support the planned long-hole mining method. Mechanisation works in greenfield sites and it is the future but feasibility depends on the mine design says Vogt.

Digging deeper Mining methods explained Anglo American

The underground mining methods we use include room and pillar narrow vein stoping and large-scale mechanised mining. Room and pillar mining is a style of mining where tunnels are driven in a chess board pattern with massive square pillars between them which are gradually cut away as the work proceeds. We use this for mining coal.

Methods of mining used in gold reef city

Methods of mining used in gold reef city Products. As a leading global manufacturer of crushing grinding and mining equipments we offer advanced reasonable solutions for any size-reduction requirements including Methods of mining used in gold reef city

Sabinet Long-hole drilling in development and stoping in

Affiliations 1 General Mining and Finance Corp. Ltd. Source Journal of the Southern African Institute of Mining and Metallurgy Volume 59 Issue 8 Mar 1959 p. 385411 Keyword(s) development breaking gold mining long-hole drilling narrow reefs narrow-reef mines rock breaking stoping methods stoping rock and tungsten carbide

Open-Pit Mining Methods

Open-pit mining methods are applicable to mining ore deposits that apex at or near the surface. If the deposit apexes below the surface the overburden and barren capping overlying the ore must be removed in advance of open-pit mining. The removal of this material is known as stripping.

Great MiningIt s all about Mining Techniques

Gold mining consists of the processes and techniques employed in the removal of gold from the ground. Earlier gold was mined using different methods like Panning cradling dry blowing shaft mining Puddling and dredging. Nowadays open cut mining and underground methods are used for gold mining.

Mining WeeklyTshepong mine South Africa

Products Gold. Mining method Conventional narrow-reef mining methods are used. The ore is hoisted from a depth of 2 200 m below surface with a Blair multirope winder. Two person-and

Jeanette gold minethe futureTaung Gold International

Instead of trying to support the narrow band of Khaki Shale above the narrow gold reef as was unsuccessfully attempted at other mines when mining techniques were less advanced we will first mine out the shale and use it to backfill the areas where ore is being extracted.

Sublevel Stoping Mining MethodYouTube

Feb 10 2018 · Black Diamond Drilling Services Australia Database

(PDF) Loading and hauling of broken rock in a narrow

Loading and hauling of broken rock in a narrow tabular orebody utilizing scraper winches. in the narrow reef environment. South Africa gold and platinum mining remains predominately trackbound

Basic Gold Prospecting Exploration Methods

Seismic Method. Surface seismic techniques used in gold exploration are restricted to seismic refraction and seismic reflection methods. Probably the first one is the most employed. The equipment employed for both techniques is very similar and assure the travel time of acoustic waves propagating through the subsurface.

DRILLING AND BLASTING IN HARD ROCK NARROW

PAGE 4 CHAMBER OF MINES DRILLING AND BLASTING IN HARD ROCK NARROW TABULAR MINES INTERACTIONS AND LESSONS FROM MINES VISITS TO MINE TRAINING CENTRES Visits were conducted to two large mining companies (one gold and one platinum) to assess the quality and comprehensiveness of training in marking drilling charging and blasting. In both cases

Narrow Vein Mining Methods and Geologic Grade-Control

Narrow Vein Mining Methods and Geologic Grade-Control on the JM-Reef Pd/Pt Deposit. J-M Reef PGM Production Pd/Pt (3.4 1) are our primary target elements hosted as copper nickel gold silver. Worldwide PGM Production SMC is the only U.S. producer of PGMs and the largest primary producer outside of South Africa and the Russian Federation

Underground mining (hard rock)Wikipedia

Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals usually those containing metals such as ore containing gold silver iron copper zinc nickel tin and lead but also involves using the same techniques for excavating ores of gems such as diamonds or rubies.

Long hole drilling applied to narrow reef mining

LONG HOLE DRILLING APPLIED TO NARROW REEF MINING 199 Objective The purpose of this report is to chronicle the interaction between Anglo Platinum and Tamrock during the development and application of Long Hole drilling as a viable practical method of narrow reef mining. Appendix I identifies the people from Anglo Platinum and

Explosives utilization at a Witwatersrand gold mine

Witwatersrand gold mine by M. Gaula Paper written on project work carried out in partial fulfilment of BSc. (Mining Engineering) Synopsis Gold bearing deposits of the Witwatersrand basin are generally less than 2m thick and require conventional narrow-reef mining methods for extraction and employ explosives as a means of rock breaking. Optimal

reef gold mininggruppointerforcejonica

Narrow-reef precious metals mining at a crossroads. Mechanised mining methods have gone on apace outside of the hard rock narrow-reef scenario. either as alluvial gold found in rivers and creeks or as reef gold mining associated with granite plutons and metasediments inland from Batemans Bay. Geology of the Batemans Bay region Doug

Narrow-vein modelling and Mineral Resource estimation

Narrow veins are major sources of many commodities including gold silver tin tungsten coal uranium and sometimes copper lead and zinc. Mining this narrow style of mineralization can be considered as relatively high risk not only due to the high cost of exploration and mining per unit of metal but also to the frequently limited size of the resource.

Underground mining (hard rock)Wikipedia

Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals usually those containing metals such as ore containing gold silver iron copper zinc nickel tin and lead but also involves using the same techniques