"The Reporoa Caldera is a 10 km by 15 km caldera in New Zealand's Taupō Volcanic Zone located in the Taupō-Reporoa Basin. It formed some 280,000 years ago, in a large eruption that deposited approximately 100 km3 of tephra, forming the Kaingaroa Ignimbrite layer. The ignimbrite sheet extends up to 15 km (9.3 mi) to the east."
"The Rotorua Caldera is a large rhyolitic caldera that is filled by Lake Rotorua. It was formed by an eruption 240,000 years ago that produced extensive pyroclastic deposits. Smaller eruptions have occurred in the caldera since, the most recent less than 25,000 years ago. It is one of several large volcanoes in the Taupō Volcanic Zone on the North Island of New Zealand. "
Ruapehu is a composite andesitic stratovolcano located at the southern end of the Taupō Volcanic Zone and forming part of the Tongariro Volcanic Centre. Volcanism at Ruapehu is caused by the subduction of the Pacific Plate under the Australian Plate at the Hikurangi Trough to the east of the North Island. Ruapehu has erupted from multiple craters over its lifetime, however, only one crater is presently active, a deep crater at the southern end of the summit plateau which is filled with hot, acidic water, dubbed Crater Lake (Te Wai ā-moe). The lake water currently covers separate north and central vents
"Ruru, Maungakawa, Te Tāpui – These three
symmetrical cones are about 500m high, lie
in a distinct line and erupted about 6 MYA.
Deeply eroded andesitic boulders left from
lava flows are strewn over all three cones."
"Stoddart Basalt (7.0 – 5.8 Ma) The final phase of Banks Peninsula volcanic activity resulted in 20km³ of sheet flows and lava plugs on the eroding Banks Peninsula volcanoes and the eroded interior of Lyttelton Volcano. Exposures are at; Quail Island, Diamond Harbour to Purau Valley, Ripapa Island and associated peninsula, Kaituna Valley, between Taitapu and Ahuriri, and at Halswell Quarry. At Quail Island, Stoddart Basalt overlies a thick sequence of brown, yellow-brown, matrix to clast supported, pebble to boulder conglomerate, with channelized sandstone layers, which rest unconformably on underlying Kaioruru Hawaiite. Purau Valley to Diamond Harbour exposure is the largest accumulation of Stoddart Basalt, forming the 5km long Diamond Harbour dip slope." Hampton, S.J. : https://ir.canterbury.ac.nz/handle/10092/4117
"Stoddart Basalt (7.0 – 5.8 Ma)
The final phase of Banks Peninsula volcanic activity resulted in 20km³ of sheet flows and lava plugs on the eroding Banks Peninsula volcanoes and the eroded interior of Lyttelton Volcano. Exposures are at; Quail Island, Diamond Harbour to Purau Valley, Ripapa Island and associated peninsula, Kaituna Valley, between Taitapu and Ahuriri, and at Halswell Quarry. At Quail Island, Stoddart Basalt overlies a thick sequence of brown, yellow-brown, matrix to clast supported, pebble to boulder conglomerate, with channelized sandstone layers, which rest unconformably on underlying Kaioruru Hawaiite. Purau Valley to Diamond Harbour exposure is the largest accumulation of Stoddart Basalt, forming the 5km long Diamond Harbour dip slope."
Hampton, S.J. : https://ir.canterbury.ac.nz/handle/10092/4117
"Stoddart Basalt (7.0 – 5.8 Ma) The final phase of Banks Peninsula volcanic activity resulted in 20km³ of sheet flows and lava plugs on the eroding Banks Peninsula volcanoes and the eroded interior of Lyttelton Volcano. Exposures are at; Quail Island, Diamond Harbour to Purau Valley, Ripapa Island and associated peninsula, Kaituna Valley, between Taitapu and Ahuriri, and at Halswell Quarry. At Quail Island, Stoddart Basalt overlies a thick sequence of brown, yellow-brown, matrix to clast supported, pebble to boulder conglomerate, with channelized sandstone layers, which rest unconformably on underlying Kaioruru Hawaiite. Purau Valley to Diamond Harbour exposure is the largest accumulation of Stoddart Basalt, forming the 5km long Diamond Harbour dip slope." Hampton, S.J. : https://ir.canterbury.ac.nz/handle/10092/4117
"The Tapuaenuku Igneous Complex is a
mid-Cretaceous layered intrusion and dike swarm cropping
out at the axis of the Inland Kaikoura Ranges (Tapuae-o-Uenuku, 2885m), South Island,
New Zealand. The TIC is part of an extensive, but poorly
preserved, igneous province that formed during or after
cessation of subduction along the margin of Gondwana
c. 100 Ma ago. The
intrusion is roughly elliptical in shape, with an areal outcrop
of 35 km2."
I. A. Baker, J. A. Gamble & I. J. Graham (1994) https://www.tandfonline.com/doi/pdf/10.1080/00288306.1994.9514620
Tarahi is a 388 m (1,273 ft) high andesite volcano, in the Kaikohe-Bay of Islands volcanic field in New Zealand. Northwest of Tarahi is a smaller, 350 m (1,150 ft) basaltic scoria cone.
"In the last half-million years, 12 small basalt volcanoes have erupted in the southern part of the field (Smith
et al. 1993), forming a cluster of scoria cones around Kaikohe. Te Puke volcano erupted in the hills
behind Waitangi 100 000 years ago, forming three small cones and a spreading flow that now underlies
Waitangi golf course and treaty grounds. The youngest volcano is Tauanui, 10 km south of Kaikohe, which
60 000 years ago produced a high scoria cone and a lava flow that flowed 19 km down the Taheke Valley
towards the Hokianga Harbour. The field includes a small rhyolite dome (Putahi), overlooking Lake
Omapere. The field should still be considered dormant, and not extinct."
"Taranaki is geologically young, having commenced activity approximately 135,000 years ago. The most recent volcanic activity was the production of a lava dome in the crater and its collapse down the side of the mountain in the 1850s or 1860s."
https://en.wikipedia.org/wiki/Mount_Taranaki
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