alluvial gold mining in otago gold in otago

Otago – Te Ara Encyclopedia of New Zealand

Historically in Otago the majority of recovered gold was alluvial – less than 10% came from hard rock. Otago''s gold is linked to its schist rocks. Over the past 100,000 years glaciers ground away at the rocks, which were threaded with quartz veins containing gold, …Alluvial gold – Gold and gold mining – Te Ara …Alluvial gold. These gold nuggets have been mined from river gravels in Otago. The gold has been beaten by boulders in flood waters, then folded back over countless times to give these flattened shapes. Dark impurities visible in the larger …

Gold in them there hills | Otago Daily Times Online News

2022-1-18 · Coromandel Township. The Coromandel School of Mines Museum is accommodated in the original School of Mines, dating from 1898. Along with viewing artefacts from kauri logging days, photographs of settlers, items and tools dating from the late 1800s, learn of the area''s gold history at the reconstruction of Success Mines entrance, complete with wagon and …Papers Past | Newspapers | Otago Witness | 25 March 1887 ...EARLY GOLD DISCOVERIES IN OTAGO. [ALL BIGHTS RESERVED.] By Vincent Pykb. ADDITIONAL CHAPTERS. Goldminino Ancient and Modern.—Sluicing.—Dredging.—Quartz Lodes.—Nuggets. The following extract from Mr Brough Smyth''s «Gold-fields of Victoria'' is both interesting and instructive: — " Gold was got in Egypt 2000 years ago from Veins of quartz in …

History of gold, Hauraki goldfield, New Zealand

2018-8-14 · While alluvial gold mining dominated in the South Island after the gold rushes, hard rock mines were developed in Nelson, Westland and Otago. The Reefton Goldfield, on the West Coast of the South Island, produced more than 2 million …Gabriels Gully, Lawrence, Clutha District, Otago Region ...851 (2011) 45.7km SSE. Alluvial gold. We can quibble gold was found at Glenore and the Lindis Valley earlier, but in reality Gabriel Read''s gold discovery in 1861, at the gully that would bear his name, set off the first major gold rush in New Zealand. It heralded a period when Otago boomed, as several major goldfields were uncovered shortly ...

Eluvial gold placer formation on actively rising mountain ...

1993-5-1 · Photograph of eluvial gold nugget from Central Otago; complex aggregate of wire gold which has partially or wholly overgrown lithic soil material (mainly angular schist fragments, e.g. top and bottom left, and centre), central Raggedy Range. Specimen is 2 cm across. 628 P. (''RAW AND,LH. YOUNt},''-,ON Fig. 5.Seeking to mine gold in Winding Creek Valley | Otago …2021-7-30 · A South Island mining company is seeking to renew extraction of gold from a Northern Southland area that has a long history with the prized mineral. Bromoore Gold Limited has lodged resource consent applications to establish an alluvial gold mine in Winding Creek Valley, to the east of Waikaia. The operation would involve excavation of two ...

Early Water Races in Central Otago

Otago are introduced. 2. MT IDA WATER RACE 2.1 Mining and construction Alluvial gold mining began in Naseby in 1863 (Hamel), using water from the Hogburn and a number of other races from the East Eweburn and the Kyeburn. The disposal of tailings was difficult, because of the lack of flushing water and the relatively flat grade from theChapter 36 Impacts of mining - researchgate In Central Otago widespread alluvial gold mining began in the 1860s, while the Ohinemuri goldfield opened in the Coromandel in 1875. Most of the early activity

Alluvial Gold in Eastern Southland: Origin of the Gold and ...

Middle and Late Cenozoic fluvial conglomerates and gravel in northeastern Southland record the transport of alluvial gold from Central Otago into Southland, and subsequent reworking and concentration of this gold into economic placer deposits. A corridor of geochemically distinctive, Hg-free gold derived ultimately from veins in Torlesse Terrane schist in Otago extends through …Eluvial gold placer formation on actively rising mountain ...1993-5-1 · Photograph of eluvial gold nugget from Central Otago; complex aggregate of wire gold which has partially or wholly overgrown lithic soil material (mainly angular schist fragments, e.g. top and bottom left, and centre), central Raggedy Range. Specimen is 2 cm across. 628 P. (''RAW AND,LH. YOUNt},''-,ON Fig. 5.

Goldrush Online

2022-1-22 · Otago Mining Records (1861 - 1866) West Coast Mining Records (1865 - 1871) ... Gold dust and nuggets from alluvial mining was melted down and turned into gold/silver (bullion) bars. Digging For Quartz Gold. Quartz gold is found underground in the main reefs or veins in the living rock walls. In Thames, New Zealand in 1868, a few rare reefs were ...Papers Past | Newspapers | Otago Witness | 25 March 1887 ...EARLY GOLD DISCOVERIES IN OTAGO. [ALL BIGHTS RESERVED.] By Vincent Pykb. ADDITIONAL CHAPTERS. Goldminino Ancient and Modern.—Sluicing.—Dredging.—Quartz Lodes.—Nuggets. The following extract from Mr Brough Smyth''s «Gold-fields of Victoria'' is both interesting and instructive: — " Gold was got in Egypt 2000 years ago from Veins of quartz in …

DML Resources Limited

DML Resources Limited - Mining Division produced over 50 000 oz of alluvial gold in the 1995 - 1996 year from five operations located in the West Coast and Otago Regions on the South Island of New Zealand. DML Resources Limited - Mining Division have a twenty year history of alluvial gold mining development in New Zealand. Recent expansions have seen the establishment of …Eluvial gold placer formation on actively rising mountain ...1993-5-1 · Photograph of eluvial gold nugget from Central Otago; complex aggregate of wire gold which has partially or wholly overgrown lithic soil material (mainly angular schist fragments, e.g. top and bottom left, and centre), central Raggedy Range. Specimen is 2 cm across. 628 P. (''RAW AND,LH. YOUNt},''-,ON Fig. 5.

Chapter 36 Impacts of mining

In Central Otago widespread alluvial gold mining began in the 1860s, while the Ohinemuri goldfield opened in the Coromandel in 1875. Most of the early activityCentral Otago Gold Story | Central OtagoAs gold mining became more mechanical, the diggers deserted Otago in their thousands. Alarmed by flagging revenues, Dunedin''s Chamber of Commerce invited Chinese miners to give the old diggings another going over. Arriving via the Victoria goldfields in a trickle from 1865, the Chinese numbered more than 2000 by 1870.

Alluvial Gold in Eastern Southland: Origin of the Gold and ...

Middle and Late Cenozoic fluvial conglomerates and gravel in northeastern Southland record the transport of alluvial gold from Central Otago into Southland, and subsequent reworking and concentration of this gold into economic placer deposits. A corridor of geochemically distinctive, Hg-free gold derived ultimately from veins in Torlesse Terrane schist in Otago extends through …Goldmining Today | Otago Goldfields Heritage Trust ...Goldmining Today. The goldmining era is by no means at an end in Otago. Sites of old gold rushes such as the Clutha and Cardrona River beds are offering up new riches to mining companies. As new technologies are developed former gold mining areas are being re-opened. In the early 1990s, alluvial deposits at Island Block (near Millers Flat), and ...

Alluvial gold – Gold and gold mining – Te Ara …

Alluvial gold. These gold nuggets have been mined from river gravels in Otago. The gold has been beaten by boulders in flood waters, then folded back over countless times to give these flattened shapes. Dark impurities visible in the larger …Alluvial Gold in Eastern Southland: Origin of the Gold and ...Middle and Late Cenozoic fluvial conglomerates and gravel in northeastern Southland record the transport of alluvial gold from Central Otago into Southland, and subsequent reworking and concentration of this gold into economic placer deposits. A corridor of geochemically distinctive, Hg-free gold derived ultimately from veins in Torlesse Terrane schist in Otago extends through …

Alluvial gold mine approved | Otago Daily Times Online …

2016-8-23 · There''s no need to travel to Rio to win gold, as a large-scale alluvial mining operation near Roxburgh has got resource consent. However, opposing neighbours may appeal. Independent commissioners yesterday released a decision allowing Kokiri Lime Company Ltd to mine on 163ha of land at Coal Creek Flat now used for pastoral farming and horticulture.Looking for gold in gold fossicking areas - New Zealand ...There are 19 areas in the South Island that have been set aside for gold fossicking and gold panning in Nelson-Marlborough, the West Coast and South and Central Otago. These areas are open for recreational gold fossicking without the need for a permit. Alluvial gold, which is found in soil and sediments around rivers and streams, is present in ...

Alluvial gold – Gold and gold mining – Te Ara …

Alluvial gold. These gold nuggets have been mined from river gravels in Otago. The gold has been beaten by boulders in flood waters, then folded back over countless times to give these flattened shapes. Dark impurities visible in the larger …Goldmining Today | Otago Goldfields Heritage Trust ...Goldmining Today. The goldmining era is by no means at an end in Otago. Sites of old gold rushes such as the Clutha and Cardrona River beds are offering up new riches to mining companies. As new technologies are developed former gold mining areas are being re-opened. In the early 1990s, alluvial deposits at Island Block (near Millers Flat), and ...

Economies of Scale (gold in Otago), Gold in Otago ...

2022-1-22 · The total reported historical alluvial gold production from Otago was about 240 tonnes but undeclared gold could make this a very much higher figure. Hard-rock mining was on a small scale only, and most mines consisted of a few …Otago – Te Ara Encyclopedia of New ZealandHistorically in Otago the majority of recovered gold was alluvial – less than 10% came from hard rock. Otago''s gold is linked to its schist rocks. Over the past 100,000 years glaciers ground away at the rocks, which were threaded with quartz veins containing gold, …

Seeking to mine gold in Winding Creek Valley | Otago …

2021-7-30 · A South Island mining company is seeking to renew extraction of gold from a Northern Southland area that has a long history with the prized mineral. Bromoore Gold Limited has lodged resource consent applications to establish an alluvial gold mine in Winding Creek Valley, to the east of Waikaia. The operation would involve excavation of two ...Gold - New Zealand Geographic2022-2-9 · This is certainly true of industrial gold-mining, though here the scale, complexity and microscopic precision of extraction can be staggering. If my nugget-detecting was a needle-in-the-haystack kind of quest, at Macraes Flat, in …

Gold mining returns to Central Otago

2022-2-9 · Gold mining returns to Central Otago. 16 Jun, 2008 11:30 PM 2 minutes to read. Alluvial (river-bed) gold obtained from Central Otago sites. Alluvial (river-bed) gold obtained from Central Otago sites.The Achaeology of Otago - Department of Conservation2018-5-25 · 7. Gold mining in Otago 127 7.1 A brief history 127 7.2 The geological nature of the gold fields 133 8. Alluvial gold mining 135 9. 8.1 The early sites 8.2 Ground sluicing sites 8.3 Hydraulic sluicing 8.4 Hydraulic elevating 8.5 Dredging Quartz mining 9.1 Shotover 9.2 Arrow 9.:3 Glenorchy 9.4 Bendigo Creek 9.5 Macraes

Alluvial gold along the northeast Otago margin, Geology ...

2022-2-13 · The Blue Lake alluvial gold mine, St Bathans, Central Otago. The Blue Lake Fault passes through this area, but is diffuse as it has caused shearing at several different rock boundaries. Gold was enriched near the boundary …Hard-rock gold mining in Otago, Gold in Otago, …2022-1-7 · The gold content of quartz veins was 10-50 grams per tonne of ore. Mining hard-rock gold requires considerabley more technological input than alluvial gold. Historically, hard-rock mining was a minor part of the gold mining industry …

Alluvial gold mining in Otago, Gold in Otago, Department ...

Alluvial gold along the northeast Otago margin, Geology ...Alluvial gold mining in Otago, Gold in Otago, Department ...2022-2-12 · Alluvial mining is technically simpler than hard-rock mining, so alluvial mining dominated Otago''s gold mining history. Alluvial gold occurs as loose particles in the gravel, and is therefore easy to separate because of the high density of the gold. Many of the earliest alluvial mines were extremely rich (10''s or even 100''s of grams of gold per ...

Seeking to mine gold in Winding Creek Valley | Otago …

2021-7-30 · A South Island mining company is seeking to renew extraction of gold from a Northern Southland area that has a long history with the prized mineral. Bromoore Gold Limited has lodged resource consent applications to establish an alluvial gold mine in Winding Creek Valley, to the east of Waikaia. The operation would involve excavation of two .. apter 36 Impacts of mining - researchgate In Central Otago widespread alluvial gold mining began in the 1860s, while the Ohinemuri goldfield opened in the Coromandel in 1875. Most of the early activity

Eluvial gold placer formation on actively rising mountain ...

1993-5-1 · Photograph of eluvial gold nugget from Central Otago; complex aggregate of wire gold which has partially or wholly overgrown lithic soil material (mainly angular schist fragments, e.g. top and bottom left, and centre), central Raggedy Range. Specimen is 2 cm across. 628 P. (''RAW AND,LH. YOUNt},''-,ON Fig. 5.RESEARCH ARTICLE Lithostratigraphy of gold-bearing ...2018-6-11 · The Central Otago goldfield occurs mainly in the catchment of the Clutha River (Figs 1A 1C), and the active river bed of the Clutha River itself has been an important locus of alluvial gold mining (Williams 1974). In addition, alluvial gold occurs in palaeoplacers in Miocene fluvial sediments; post-Miocene uplift and erosion of these ...

Eluvial gold placer formation on actively rising mountain ...

1993-5-1 · Photograph of eluvial gold nugget from Central Otago; complex aggregate of wire gold which has partially or wholly overgrown lithic soil material (mainly angular schist fragments, e.g. top and bottom left, and centre), central Raggedy Range. Specimen is 2 cm across. 628 P. (''RAW AND,LH. YOUNt},''-,ON Fig. 5.DML Resources Limited - Mining Division Alluvial Gold ...DML Resources Limited - Mining Division produced over 50 000 oz of alluvial gold in the 1995 - 1996 year from five operations located in the West Coast and Otago Regions on the South Island of New Zealand. DML Resources Limited - Mining Division have a twenty year history of alluvial gold mining development in New Zealand. Recent expansions have seen the establishment of …

Public Gold Fossicking Areas

Alluvial gold is present within all these gold fossicking areas, although the concentrations are often low. All these areas are suitable for gold panning and sluice boxing, mining being restricted to hand-held non-motorised methods …The Miners Legacy | Otago Goldfields Heritage Trust ...The Miners Legacy 16 March,2009 bendeegan. Over 140 years ago the young province of Otago was excited with the news of the discovery of gold. The first find was in the Lindis River early in 1861, before the much better known discovery in Gabriel''s Gully at Lawrence in May 1861. In July there were about 150 men at work in Gabriel''s Gully and ...

Mobilisation and attenuation of arsenic around gold …

2018-6-12 · University of Otago P.O. Box 56 Dunedin, New Zealand Abstract Arsenic is released into the environment by decomposition of natural arsenopyrite in gold-bearing veins in east Otago. Natural release is slow, but is accelerated by mining activity. Waters from old mine adits have pH of 6-7, compared to normal groundwater pH of 7-8, and aditWaikaia A Gold Story - Otago Goldfields Heritage Trust2017-1-24 · the first Tuapeka rush. For the next 50 years, the search for gold was the focus of majority of people who lived in this area. The Otago Goldfields / Windows on a Chinese Past, Dr James Ng Now there is two things of note for those of new to the Waikaia gold story. The first is the enormous size of the Switzers gold field.