Bottom sediments of Lake Tekapo compared with adjacent Lakes Pukaki and Ohau, South Island, New Zealand

Abstract

Bottom sediments in Lake Tekapo are mainly silty clays which become progressively finer grained away from themain sediment supply, the glacially‐fed Godley River.57% of the sediment samples have over 50% of clay size material. A comparison of morphometric data, sediment source areas, turbidity and bottom sediments is made with nearby Lakes Pukaki and Ohau which are also fed by glacial melt water. © 1978 Taylor & Francis Group, LLC.