Abstract
The small catchment of the New (Paroa) River, on the West Coast of the South Island, displays a markedly asymmetrical drainage pattern which reflects its tectonic and Quaternary glacial history. Outwash from ice in the Taramakau valley and Lake Brunner basin during the Nemona Glaciation created a new surface on which the forerunner of the modern drainage pattern developed. This pattern was modified through successive glaciations as valleys were deepened and streams diverted in a series of captures. Continuing deformation where the streams crossed the nose of the Brunner Anticline also played a part. A chronological framework of the capture sequence is provided by the input of sediments during the Waimea and Otira Glaciations.
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