A Tephra dated record of palaeoenvironmental change since 5,500 years ago from Lake Rotorua, North Island, New Zealand

Abstract

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.

Link

http://researchcommons.waikato.ac.nz/handle/10289/2521

Description
TitleA Tephra dated record of palaeoenvironmental change since 5,500 years ago from Lake Rotorua, North Island, New Zealand
AuthorPickett, Rachel Cara
Date2009
Degree LevelMaster of Science
Degree GrantorUniversity of Waikato
FocusSedimentology
Keywordspaleolimnology; diatom; tephra; thermochronology
LocalityLake Rotorua; Whakatane; Tarawera; Kaharoa; North Island; New Zealand