Customer case aboutto mine horizontal gold reefs

to mine horizontal gold reefs

to mine horizontal gold reefs

Gold Mining History, Waihi The Cornish Pumphouse GO Waihi. The pumps were needed to cope with the ever increasing quantities of water as the mine workings followed the gold-bearing quartz reefs to a final depth of 600 metres. Constructed by Hathorn-Davey, the horizontal Cornish pump was the pride of the New Zealand mining industry.

get price

Quartz Reef Mining, Mining Techniques, Surface

2021-7-15  The novel mining firms had to sink very profound shafts to get quartz from the reefs profound underground. Horizontal tunnels known as drives were dug out from the shaft at dissimilar levels to discover the gold-bearing rock. All rock excavated out had to be hoisted to the surface.

get price

Union Reefs North Underground Mine NTEPA

NT Mining Operations Pty Ltd (the Proponent) proposes to develop and mine a new underground gold mine on the existing Union Reefs mine site ;approximately 20 km north-west of Pine Creek, Northern Territory. The Northern Territory Environment Protection Authority (NT EPA) decided on 7 August 2019 that the Proposal required assessment under the

get price

Assessment of current mining strategy J for steep reefs at

2009-8-26  for steep reefs at Mine A mine in 2005 and 2006. Reefs steeper than 35° were discovered when production commenced at the mine. At that time reefs steeper than 35° were not popular in South African tabular gold mines, therefore new techniques of mining them had to be developed. The underhand mining method was chosen for this purpose.

get price

Union Reefs North Underground Project Environmental

2019-11-27  Adit—a horizontal tunnel extending underground from an entrance portal in a near‐vertical or sloped rock face. The adit may link to other horizontal cross‐cuts on either side, and to vertical shafts that extend below or above the horizontal tunnels.

get price

Junction Reefs OceanaGold

Junction Reefs. The Junction Reefs Mine is located 270 kilometres west of Sydney in the Central Tablelands of New South Wales in Australia. The mine is located on undulating, cleared grazing land in a cereal cropping, vineyards, and sheep and cattle grazing region. The site is bisected by the Belubula River with spectacular steep sided rocky

get price

Structural controls on Witwatersrand gold

2004-6-1  The thrust imbricates typically carry 1–10 m NNW/SSE displacement and occasionally several tens of metres, and are intimately linked to formation of both steep and sub-horizontal gold-bearing fractures, during flexural shear of the reef and short-cutting of ramps (Jolley et al., 1999). Fracturing is also focused by the detail of reef architecture, by slippage across quartzite packages within the

get price

Our Story Theta Gold Mines

We believe much of this can be accessed by reopening existing shallow-angle haulages and adits, or in some cases, open-cut mining of the upper gold reefs near surface. Historically, the region was so rich in resources and easy targets that when mining became difficult,

get price

Enhanced geological modelling of the Upper Elsburg

2014-5-22  Synopsis. South Deep Gold Mine, owned by Gold Fields Ltd., is situated near Westonaria in the Gauteng Province of South Africa and mines the conglomerate bands of the Upper Elsburg reefs (Mondeor Conglomerate Formation) of the Witwatersrand Supergroup and the Ventersdorp Contact Reef (VCR) of the Ventersdorp Supergroup.

get price

Indicators and Quartz reefs Gold Detecting and

2012-12-29  The gold ran vertically down the intersection of the two reefs and went down another foot before it petered out to nothing. All up 3.5 ounces came out of the one hole in detectable bits and after panning all the dirt another 2/3 of an ounce was gained.

get price

Gold Mining Reefs and Leads Ballarat and District

2017-6-16  Gold Mining Reefs and Leads. A gold reef is where the gold is found still deposited in its original rock host. In Ballarat this rock was usually quartz, in what is described as a reef. Alluvial gold was gold that had come loose from its original host, and had

get price

Driefontein Gold Mine GOLD FIELDS

Driefontein Gold Mine. Technical Short Form Report. Driefontein Gold Mine is a large, well-established shallow to ultra-deep level gold mine with workings that are accessed through eight shaft systems that mine various gold bearing reefs from open ground

get price

Union Reefs North Underground Mine NTEPA

NT Mining Operations Pty Ltd (the Proponent) proposes to develop and mine a new underground gold mine on the existing Union Reefs mine site ;approximately 20 km north-west of Pine Creek, Northern Territory. The Northern Territory Environment Protection Authority (NT EPA) decided on 7 August 2019 that the Proposal required assessment under the

get price

Gold Project Inventory Gold in Ironstone and Quartz

Gold from the various reefs at Tower Hill was produced from ferruginous quartz, and below the water-table high quantities of sulphide (mainly pyrite) were encountered. In March, 1877, the Clarence Pioneer Quartz Mining Company was formed to construct a tunnel to intersect the main Perseverance reef 75 m. to 85 m. below the level of the top of

get price

Quartz-Pebble-Conglomerate Gold Deposits

2018-5-14  gold that source the detrital material infilling the basin. The gold reefs are typically located along unconformities or, less commonly, at the top of sedimentary beds. Large quartz peb-bles and heavy-mineral concentrates are found associated with the gold

get price

Union Reefs North Underground Project Environmental

2019-11-27  Kirkland Lake Gold Client Contact Sally Horsnell Disclaimer Ecological Management Services Pty Ltd/Specialised Zoological have prepared this report for the use of Kirkland Lake Gold. The report has been prepared in accordance with the scope of work based on discussions with Kirkland Lake Gold and the project Union Reefs project TOR (NT EPA 2019).

get price

Enhanced geological modelling of the Upper Elsburg

2014-5-22  Elsburg reefs and VCR to optimize mechanized mine planning at South Deep Gold Mine by K. Osburn*, H. Pretorius†, D. Kock†, N. King†, R. Pillaye†, and M. Hlangwane‡ Synopsis South Deep Gold Mine, owned by Gold Fields Ltd., is situated near Westonaria in the Gauteng Province of South Africa and mines the

get price

Wits Basin’s shallow gold reefs to be mined as

2020-11-4  New mid-tier gold aspirant Shallow Reefs Gold is in the process of being built in South Africa to mine the shallow reefs of South Africa’s historic Witwatersrand Gold Basin. Shallow Reefs Gold has former Mineral Resources Minister Susan Shabangu

get price

Junction Reefs OceanaGold

Junction Reefs. The Junction Reefs Mine is located 270 kilometres west of Sydney in the Central Tablelands of New South Wales in Australia. The mine is located on undulating, cleared grazing land in a cereal cropping, vineyards, and sheep and cattle grazing

get price

Indicators and Quartz reefs Gold Detecting and

2012-12-29  The gold ran vertically down the intersection of the two reefs and went down another foot before it petered out to nothing. All up 3.5 ounces came out of the one hole in detectable bits and after panning all the dirt another 2/3 of an ounce was gained.

get price

Gold Mining Reefs and Leads Ballarat and District

2017-6-16  Gold Mining Reefs and Leads. A gold reef is where the gold is found still deposited in its original rock host. In Ballarat this rock was usually quartz, in what is described as a reef. Alluvial gold was gold that had come loose from its original host, and had

get price

Driefontein Gold Mine GOLD FIELDS

Driefontein Gold Mine. Technical Short Form Report. Driefontein Gold Mine is a large, well-established shallow to ultra-deep level gold mine with workings that are accessed through eight shaft systems that mine various gold bearing reefs from open ground

get price

Quartz-Pebble-Conglomerate Gold Deposits

2018-5-14  gold that source the detrital material infilling the basin. The gold reefs are typically located along unconformities or, less commonly, at the top of sedimentary beds. Large quartz peb-bles and heavy-mineral concentrates are found associated with the gold

get price

Gold Project Inventory Gold in Ironstone and Quartz

Gold from the various reefs at Tower Hill was produced from ferruginous quartz, and below the water-table high quantities of sulphide (mainly pyrite) were encountered. In March, 1877, the Clarence Pioneer Quartz Mining Company was formed to construct a tunnel to intersect the main Perseverance reef 75 m. to 85 m. below the level of the top of

get price

Witwatersrand Gold Deposits Mineral Processing

2018-2-13  Witwatersrand gold reefs Mining Method: There are huge gold reserves and resources still remaining almost half of the world’s gold reserve still lie in mine in the Witwatersrand basin but these are generally too deep for juniors to mine or explore

get price

Fumani Mine (Giant Reefs gold mine), Giyani

Fumani Mine (Giant Reefs gold mine), Giyani Greenstone Belt, Mopani District, Limpopo, South Africa : The Fumani gold mine is situated at the north-eastern end of the Giyani greenstone belt in the nose of a refolded regional fold structure that plunges northwest. Mining operations started in 1934 as

get price

Kopanang Mine Village Main Reef

2021-7-27  Current status. In March 2018, HSC acquired the Kopanang mine from AngloGold Ashanti. The mine operates at depths of 1,350 to 2,240 metres below surface and is accessed by one of the largest diameter shafts in South Africa. Around 3,000 people currently work at the mine, producing around 85,000 oz of gold annually.

get price

Pyrite and Pyrrhotite Textures and Composition in

2011-1-1  The gold-rich pyrite rims generally become thicker (a few to hundreds of microns) in proximity to the gold-bearing saddle reefs. Pyrite in the reef commonly has the highest levels of invisible Au and As and the lowest levels of other trace elements. It is characterized by Au/Ag >1 and Au/Pb >0.01.

get price

Indicators and Quartz reefs Gold Detecting and

2012-12-29  The gold ran vertically down the intersection of the two reefs and went down another foot before it petered out to nothing. All up 3.5 ounces came out of the one hole in detectable bits and after panning all the dirt another 2/3 of an ounce was gained.

get price

Vaal Reefs South Mine, Klerksdorp, Dr Kenneth

Vaal Reefs South Mine, Klerksdorp, Dr Kenneth Kaunda District Municipality, North West, South Africa : A Witwatersrand goldfield gold mine working the Vaal Reef.

get price

Booking Online

#