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Hendersons Quarry, Mount Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand

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Latitude & Longitude (WGS84): 38° 5' 47'' South , 176° 12' 33'' East
Latitude & Longitude (decimal): -38.09652,176.20939
Köppen climate type:Cfb : Temperate oceanic climate


Mt. Ngongotaha is a rhyolite dome with high-temperature gas phase-deposited silicate and oxide minerals present in vesicules.

This is an operating quarry, for aggregate, about 5km north of Rotorua, and access to collectors is very restricted.



Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


18 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

Pleistocene
0.0117 - 2.588 Ma



ID: 1313747
Middle Quaternary rhyolite

Age: Pleistocene (0.0117 - 2.588 Ma)

Stratigraphic Name: Pakihi Supergroup, Ruaumoko Volcanic Region

Description: Rhyolite lavas, commonly forming dome complexes, with associated breccia and tuff.

Comments: Zealandia Megasequence Extrusive and Intrusive Rocks (Neogene)

Lithology: Rhyolite, breccia, tuffite

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]

Middle Pleistocene
0.126 - 0.781 Ma



ID: 1364680
Undifferentiated Middle Pleistocene rhyolite of Ohakuri, Kapenga and Rotorua Volcanic Centres

Age: Pleistocene (0.126 - 0.781 Ma)

Stratigraphic Name: Ohakuri, Kapenga and Rotorua volcanic centres

Description: Rhyolite lava variably with lesser pumice and breccia as a carapace.

Comments: Middle Pleistocene igneous rocks. Age based on mixed

Lithology: Major:: {rhyolite},Minor:: {pumice, breccia}

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

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)
Grapes, R., Thornton, J., and Howard, D. (1993). Vug minerals in rhyolite, Hendersons Quarry, Mount Ngongotaha, Geological Society of New Zealand, Miscellaneous Publication 79A: 76.
Richnow, Jens (1999): Eruptional and post-eruptional processes in rhyolite domes. PhD thesis, University of Canterbury.

External Links


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