New Zealand Journal of Marine and Freshwater Research abstracts

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Recent stratigraphy of sediments in Lake Rotorua

G. R. Fish

Fisheries Research Division, Ministry of Agriculture and Fisheries, P.O., Ngapuna, Rotorua, New Zealand

Abstract The amounts of ejecta from the Tarawera eruption of 1886 falling into Lake Rotorua and of the sedimentation since were measured in 28 cores from widely dispersed sites in Lake Rotorua. Approximate isopleths of recent sedimentation are plotted. The amount of sediment increases with water depth and the amount of ejecta decreases in a north-easterly direction across the lake. No evidence was found of any major change in sedimentation rate over the past 90 years.

New Zealand Journal of Marine & Freshwater Research, 1979. 13 (4): 529-532
Received 5 January 1979; revision received 17 May 1979 Fisheries Research Division Publication 380

PDF file of entire paper: medium quality (639K); (scanned from paper original: notes about this process)

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