Abstract
The Hikurangi Channel, east of New Zealand, is one of the earth's major, active, sediment conduits between rising mountains and ocean basin. About 1500 km long, it uniquely incorporates most variations of canyon—channel systems worldwide. An apical canyon feeds a meandering, aggradational, trench-axis channel. This diverts, 800 km from the source, across an oceanic plateau. There, an oceanic-type channel has become incised over 500 m at the plateau-edge scarp. Beyond the scarp, distributary fan channels supply sediment to the Pacific's Deep Western Boundary Current and one distributary merges into a boundary channel.
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Lewis, K.B. The 1500-km-long Hikurangi Channel: Trench-axis channel that escapes its trench, crosses a plateau, and feeds a fan drift. Geo-Marine Letters 14, 19–28 (1994). https://doi.org/10.1007/BF01204467
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DOI: https://doi.org/10.1007/BF01204467