登录注册
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe Elements书籍及杂志
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral Museums矿物展及活动The Mindat目录表设备设置
照片搜索Photo Galleries今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Mineral Photography

Royal Standard Mine, Wharekirauponga, Hauraki District, Waikato Region, North Island, New Zealand

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Latitude & Longitude (WGS84): 37° 17' 29'' South , 175° 49' 39'' East
Latitude & Longitude (decimal): -37.29140,175.82769
GeoHash:G#: rcm5c53cf
Locality type:Mine
Köppen climate type:Cfb : Temperate oceanic climate


Au-Ag deposit. Historic mine site.

Located in a deep gorge in the upper Wharekirauponga Stream, 11 kilometres south-west of Whangamata.

The Royal Standard Gold Mining Company was formed in London in 1896, with the intention to amalgamate several prospecting claims in the area. Much money was then spent building a tramway from the mine 8 kilometres to the ocean, erecting a water race, several houses, and purchasing a battery. Around 197 men were employed during this period.

Investors from far away England were in fact having their money squandered, as little attempt had been made to verify how much gold was in the deposit. A new manager, and the financial officer were sent from England to check on progress, and quickly brought things to a halt. The site was sold at auction in 1899.

The battery had been transported to the site, but never erected, and remained in pieces scattered around the location. In the early 1970's, Glen Mayfair of Waihi applied to the New Zealand Forest Service to remove the machinery for his own private battery. Approval was given, and a track bulldozed in to remove the machinery. Mayfair later gave it back to this government department who stored the pieces at the old Victoria battery ruins near Waikino. The Royal Standard relics were subsequently removed from this site illegally, and never recovered.

In the late 1890's, the deposit was described as white soft kaolinite with low grade gold values, with floating barren quartz lenses within it. A modern study (Rabone, 1989) is a little more positive about the value of the quartz veins.

A quartz vein stock work is hosted by intensely hydrothermally altered flow banded and spherulitic mid Pliocene aged rhyolite and tuffs of the Whitianga Group.

There is a central core of silicified rhyolite, with zoned alteration around it of quartz-adularia-retrograde illite 50 metres wide, elongated north-south 450 metres. This gives way at depth to a propylitic assemblage, with chlorite and minor adularia. The quartz-adularia zone is bounded to the south by interlayered illite-montmorillonite partly peripheral, and partly overprinting the quartz-adularia. There is an upper acid leach zone consisting of cristobalite, kaolinite and montmorillonite. Gold values decrease with depth.

Au-Ag is found extensively within the margins of this central zone silification. Most of the mineralisation is hosted in the veins, however it is widespread also as low values in the host rhyolite. There are simple and complex veins, with gold only found in the complex veins. These veins consist of multiphase banded, granular, fibrous, drusy and chalcedonic quartz, rare rhombic adularia, and pyritic and limonite bands. These bands may contain trace arsenopyrite, chalcopyrite, secondary covellite, digenite, and hematite. Gold is found in the bands as clusters of sub-microscopic grains free, or in pyrite, chalcopyrite or limonite.

The site can be accessed by a walking track from the end of the Parakiwai Quarry Road. The track follows the old tram line, and is said to be muddy in places. Some machinery relics remain scattered about, and several overgrown adits. There is a waterfall further along the track but this section is said to be steep and slippery.


Mineral List


13 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Quaternary
0 - 2.588 Ma



ID: 3187411
Cenozoic volcanic rocks

Age: Pleistocene (0 - 2.588 Ma)

Lithology: Ignimbrite(s); felsic volcanic rocks; rhyolite

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Messinian - Tortonian
5.333 - 11.62 Ma



ID: 1332446
Waiwawa Subgroup andesite and dacite (Coromandel Group) of Coromandel Volcanic Zone

Age: Miocene (5.333 - 11.62 Ma)

Stratigraphic Name: Waiwawa Subgroup

Description: Andesite, dacite and rhyodacite flows and domes with intercalated tuff, tuff breccia and volcaniclastic sediments. Local, non--welded, dacitic, pumice-rich ignimbrite.

Comments: Neogene igneous rocks. Age based on K-Ar

Lithology: Major:: {andesite},Minor:: {dacite, rhyodacite, tuff, breccia}

Reference: Heron, D.W. . Geology Map of New Zealand 1:250 000. GNS Science Geological Map 1. [13]

Miocene
5.333 - 23.03 Ma



ID: 1308094
Coromandel Group Miocene andesite and basaltic andesite lava

Age: Miocene (5.333 - 23.03 Ma)

Stratigraphic Name: Coromandel Group

Description: Andesite and basaltic andesite lava, tuff and tuff breccia, agglomerate and pyroclastic flow deposits; andesite, diorite and dacite dikes and subvolcanic intusions.

Comments: Zealandia Megasequence Extrusive and Intrusive Rocks (Neogene)

Lithology: Andesite, tuffite, tuff-breccia, agglomerate, pyroclastic material, andesite, diorite, dacite

Reference: Edbrooke, S.W., Heron, D.W., Forsyth, P.J., Jongens, R. (compilers). Geology Map of New Zealand 1:1 000 000. GNS Science Geological Map 2. [12]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
MacIntosh-Bell, J, Fraser, C. (1912) The Geology of the Waihi-Tairua Subdivision Hauraki Division, New Zealand Geological Survey, Bulletin No. 15, New Zealand Government, Wellington.
Rabone, S.D.C., Moore, D.H., Barker, R.G. (1989) Geology of the Wharekirauponga epithermal gold deposit Coromandel Region, Mineral Deposits of New Zealand, Australasian Institute of Mining and Metallurgy, Ed. 2, 93-97.

External Links


 
矿物 and/or 产地  
版权所有© mindat.org1993年至2020年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 Current server date and time: 2020.2.25 19:30:19 Page generated: 2018.5.1 14:20:33
Go to top of page