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Lanigans Mine, Waikare, Far North District, Northland Region, North Island, New Zealand

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Latitude & Longitude (WGS84): 35° 20' 37'' South , 174° 14' 27'' East
Latitude & Longitude (decimal): -35.34361,174.24083
GeoHash:G#: rceyuvyk9
Locality type:Mine
Köppen climate type:Cfb : Temperate oceanic climate
Other/historical names associated with this locality:Erronously called Scotties Mine in some literature35


The geology of the Lanigans project area is dominated by greywacke and argillite with interbedded chert, basic marine volcanics and minor limestone with hydrothermal breccia dykes located in the centre of the area. These can range in thickness up to 3 metres and at least two are known to have a strike length in excess of 500 metres. Breccia clasts comprise Waipapa greywacke, argillite and chert together with carbonaceous lake sediments. Matrix material is dominated by quartz and the rocks commonly show evidence of multi-phase brecciation and remobilisation of quartz into cross-cutting veinlets. Sulphides in the breccias comprise 1-3% pyrite as fine disseminations and wispy fracture controlled veinlets together with minor stibnite and arsenopyrite. Silicification and broad zones of argillic and lesser sericitic alteration occur in the host sediments marginal to the dykes. The mineralised breccias and associated quartz veins are geochemically anomalous in gold, silver, arsenic and antimony.


Mineral List


8 valid minerals.

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

Jurassic - Triassic
145 - 252.17 Ma



ID: 1308013
Waipapa Group

Age: Mesozoic (145 - 252.17 Ma)

Stratigraphic Name: Waipapa Group

Description: Volcaniclastic sandstone and argillite with tectonically included basalt, chert and siliceous argillite.

Comments: Eastern Province (Waipapa Composite Terrane) Rocks

Lithology: Sandstone, siltstone, basalt, chert

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]

Kimmeridgian - Roadian
152.1 - 272.3 Ma



ID: 1340256
Waipapa Group sandstone and siltstone (Waipapa Composite Terrane)

Age: Phanerozoic (152.1 - 272.3 Ma)

Stratigraphic Name: Waipapa Group

Description: Massive to thin bedded, lithic volcaniclastic metasandstone and argillite, with tectonically enclosed basalt, chert and silceous argillite.

Comments: Basement (Eastern Province) sedimentary rocks

Lithology: Major:: {greywacke},Minor:: {argillite, chert, basalt}

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

Permian
252.17 - 298.9 Ma



ID: 3191173
Paleozoic sedimentary rocks

Age: Permian (252.17 - 298.9 Ma)

Lithology: Greywacke,limestone,argillite,greywacke

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]

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



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References

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Kenex Knowledge Systems/Aurora Minerals Ltd, 2004, 39 268 Northland – Lanigans Area 2004, Data Study, GIS Compilation and Prospectivity Modelling; Ministry of Economic Development New Zealand.
Unpublished Mineral Report 4076

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