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Lake Waitamoumou : ウィキペディア英語版 | Lake Waitamoumou
Lake Waitamoumou is a small dune-dammed lake a kilometre north of Raglan in the Waikato region of New Zealand. == Geology == Brown clay underlies the dunes,〔NZ Dept of Scientific & Industrial Research – Geology of Ironsand Resources of NZ David Kear 1979〕 which limits the rate of seepage through the dunes, thus forming lakes where dune advance has blocked valleys. The lake bed and stream are on Awhitu sands. They are about a million years old and made up of pumiceous cross bedded brown and yellow clayey sands. The lake is dammed by dunes of Nukumiti Sands which have formed in the last 800 years.〔Geology of the Raglan-Kawhia Area: Institute of Geological & Nuclear Sciences (N.Z.), Barry Clayton Waterhouse, P. J. White 1994 ISBN 0-478-08837-X〕
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