A palaeolimnological study was carried out on a high-resolution, 7.62 m-long core (RU188-07) from northern Lake Rotorua, North Island. The core consists predominantly of olive diatomaceous ooze, laminated in places, and contains five tephras including Tarawera (1886 A.D.), Kaharoa (c. 1314 A.D.), Taupo (c. 233 A.D.) and Whakatane (c. 5500 cal. years B.P.). The core terminated in Whakatane Tephra giving the sediment a maximum age of 5530 60 cal. years B.P. An age model for the sediment was developed using tephrochronology.
|Title||A Tephra dated record of palaeoenvironmental change since 5,500 years ago from Lake Rotorua, North Island, New Zealand|
|Author||Pickett, Rachel Cara|
|Degree Level||Master of Science|
|Degree Grantor||University of Waikato|
|Keywords||paleolimnology; diatom; tephra; thermochronology|
|Locality||Lake Rotorua; Whakatane; Tarawera; Kaharoa; North Island; New Zealand|