Bedload composition, transport and modification in rivers of Westland, New Zealand, with implications for the distribution of alluvial pounamu (jade)

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Title

Bedload composition, transport and modification in rivers of Westland, New Zealand, with implications for the distribution of alluvial pounamu (jade)

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Description

River bedload surveyed at 50 sites in Westland is dominated by Alpine Schist or Torlesse Greywacke from the Alpine Fault hanging wall, with subordinate Pounamu Ultramafics or footwall-derived Western Province rocks. Tumbling experiments found ultramafics to have the lowest attrition rates, compared with greywacke sandstone and granite (which abrade to produce silt to medium-sand), or incompetent schist (which fragments). Arahura has greater total concentrations (103–105 t/km2) and proportions...

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Data

Date created

03 Jun, 2015

Creator

SC Cox / L Nibourel

URL

https://figshare.com/articles/dataset/Bedload_composition_transport_and_modification_in_rivers_of...

Related subjects

sediment supply regime / proportion / Western Province rocks downthrown / Alpine Fault / ultramafic bedload decrease / jade / Westland / Pounamu Ultramafic bedrock / bedload / source rock outcrops / catchment / Treasured New Zealand pounamu / moraine / concentration / Science Policy / Cancer / Biological Sciences / Ecology / Earth and Environmental Sciences

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