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Kōrero: Soil investigation

Cobalt-deficient areas

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Cobalt-deficient areas

Soils on the Volcanic Plateau lack the trace element cobalt – a deficiency that causes disease in farm animals. The region is where two major eruptions, Taupō (about 200 AD) and Kaharoa (about 1314 AD), deposited layers of cobalt-deficient, soil-forming ash.

Te whakamahi i tēnei tūemi

Te Ara - The Encyclopedia of New Zealand

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Me pēnei te tohu i te whārang

P. J. Tonkin, Soil investigation – Early investigations and bush sickness: 1900–1930, Te Ara – the Encyclopedia of New Zealand, https://teara.govt.nz/mi/map/14188/cobalt-deficient-areas (accessed 4 June 2026).

He kōrero nā P. J. Tonkin, i tāngia i te 1 March 2009.