"K" Trig Quarry, Taupo District, Waikato Region, New Zealandi
| Regional Level Types | |
|---|---|
| "K" Trig Quarry | Lava Flow |
| Taupo District | District |
| Waikato Region | Region |
| New Zealand | Country |
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Latitude & Longitude (WGS84):
38° 40' 35'' South , 176° 1' 41'' East
Latitude & Longitude (decimal):
Type:
Lava Flow - last checked 2020
Köppen climate type:
"At K-Trig, a scoria cone directly overlies the outer wall beds of a phreatomagmatic tuff cone. Tuff beds are poorly exposed along the west side of K-Trig ridge, dipping 12-28° to the east, and quarrying exposes scoria beds 400 m east of K-Trig....... some basalt clasts are oxidised and have ragged, scoriaceous margins; and irregular vesicles within the matrix are often infilled with zeolites. Voids are commonly lined with chabazite and occasionally infilled with fibrous aggregates of natrolite.
Initial volcanism at K-Trig was surtseyan, but during the middle and end of activity at this site, strombolian eruptions occurred. Magmatic heat from the final strombolian phase drove convection of groundwater through the tuff cone, resulting in clast alteration and formation of zeolites within cavities in the tuff." (Brown et al, 1994)
This is the type locality for "K" Trig basalt.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Tridymite | 4.DA.10 | SiO2 |
| ⓘ | Cristobalite | 4.DA.15 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Fayalite | 9.AC.05 | Fe2+2(SiO4) |
| ⓘ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
| ⓘ | 'Zeolite Group' | 9.G0. | |
| ⓘ | Natrolite | 9.GA.05 | Na2Al2Si3O10 · 2H2O |
| Unclassified | |||
| ⓘ | 'Chabazite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| H | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | ⓘ Cristobalite | SiO2 |
| O | ⓘ Fayalite | Fe22+(SiO4) |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| O | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | ⓘ Tridymite | SiO2 |
| Na | Sodium | |
| Na | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| Mg | Magnesium | |
| Mg | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| Al | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Cristobalite | SiO2 |
| Si | ⓘ Fayalite | Fe22+(SiO4) |
| Si | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| Si | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | ⓘ Tridymite | SiO2 |
| K | Potassium | |
| K | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | Iron | |
| Fe | ⓘ Fayalite | Fe22+(SiO4) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
Other Regions, Features and Areas containing this locality
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References
Brown, S. J. A., Smith, R. T., Cole, J. W., Houghton, B. F. (1994) Compositional and textural characteristics of the strombolian and surtseyan K‐Trig basalts, Taupo Volcanic Centre, New Zealand: Implications for eruption dynamics. New Zealand Journal of Geology and Geophysics, 37 (1) 113-126 doi:10.1080/00288306.1994.9514604
"K" Trig Quarry, Taupo District, Waikato Region, New Zealand