Whitikahu
Whitikahu
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Whitikahu

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Whitikahu

Whitikahu is a settlement scattered along Whitikahu Rd in the Waikato District and Waikato region of New Zealand's North Island.

It has a blueberry farm, a winery, the Senton Sawmill, a fire station, a petrol station and a hall.

It is in the Hukanui Waerenga Ward of Waikato District Council.

Pukemokemoke hill is formed of greywacke of the Jurassic Manaia Hill Group (shown as Jm on map). The rest of the Whitikahu area is largely on a drained peat bog, which lies on ash from Lake Taupō.

Taupiri Fault is an inferred fault separating the peat from the Taupiri Range. Seismic testing in 2017 added evidence of the fault's position.

Whitikahu is at the north end of an alluvial fan of the ash, which drops about 60 m (200 ft) from Karapiro.

After the Oruanui eruption, some 26,500 years ago, Lake Taupō was about 145 m (476 ft) above the present lake. Around 22,500 years ago the ash dam eroded rapidly and the lake fell about 75 m (246 ft) in a few weeks, creating a series of massive floods. The ash they carried formed the main Hinuera Surface (Q2a) into the fan.

From then until about 17,600 years ago the Waikato would have been about 25 m (82 ft) higher than at present due to aggradation, resulting from remobilisation of pyroclastic material from Taupō, deposited as well-bedded, creamy-white pumice sands, silts and gravels with charcoal fragments.

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