Matahina eruption
E831269
The Matahina eruption was a major prehistoric explosive event from New Zealand’s Okataina Volcanic Centre that produced extensive ignimbrite deposits and significantly reshaped the surrounding landscape.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Kawerau eruption | 1 |
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
prehistoric eruption
ⓘ
volcanic eruption ⓘ |
| ageUncertainty | prehistoric (pre-human) event ⓘ |
| chronologicalPosition | Pleistocene ⓘ |
| country | New Zealand ⓘ |
| depositThickness | thick ignimbrite sequences near source ⓘ |
| depositType |
non-welded ignimbrite (distally)
ⓘ
welded ignimbrite (locally) ⓘ |
| effect |
landscape reshaping
ⓘ
river drainage modification ⓘ topographic smoothing ⓘ valley infilling by ignimbrite ⓘ widespread ashfall over surrounding region ⓘ |
| eruptionSource | Okataina caldera system NERFINISHED ⓘ |
| eruptionStyle |
Plinian
ⓘ
ignimbrite-forming ⓘ |
| evidence |
radiometric dating of associated deposits
ⓘ
stratigraphic relationships in ignimbrite and tephra sequences ⓘ |
| hasRockType | rhyolitic magma ⓘ |
| hazardRelevance | analogue for future large eruptions at Okataina Volcanic Centre ⓘ |
| ignimbriteName | Matahina Ignimbrite NERFINISHED ⓘ |
| impact |
burial of pre-existing landforms by ignimbrite
ⓘ
creation of extensive ignimbrite plateau surfaces ⓘ |
| locatedIn |
Bay of Plenty region
NERFINISHED
ⓘ
New Zealand NERFINISHED ⓘ North Island ⓘ Okataina Volcanic Centre NERFINISHED ⓘ |
| partOf | Okataina Volcanic Centre eruptive history ⓘ |
| produced |
Matahina Ignimbrite
NERFINISHED
ⓘ
air-fall tephra ⓘ pyroclastic density currents ⓘ widespread ignimbrite sheets ⓘ |
| region | central North Island volcanic plateau ⓘ |
| relatedTo | other large rhyolitic eruptions of the Taupō Volcanic Zone ⓘ |
| scale | large-magnitude explosive eruption ⓘ |
| scientificDiscipline |
Quaternary geology
NERFINISHED
ⓘ
tephrochronology ⓘ volcanology ⓘ |
| studiedFor |
eruption magnitude and frequency in Taupō Volcanic Zone
ⓘ
ignimbrite emplacement processes ⓘ |
| tectonicSetting | subduction-related arc volcanism ⓘ |
| volcanicArcOrBelt | Taupō Volcanic Zone NERFINISHED ⓘ |
| volcano | Okataina Volcanic Centre NERFINISHED ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Kawerau eruption