GPR stratigraphy of a large active dune on Parengarenga Sandspit, New Zealand

Van Dam, Remke L., Nichol, Scott L., Augustinus, Paul C., Parnell, Kevin E., Hosking, Peter L., and McLean, Roger F. (2003) GPR stratigraphy of a large active dune on Parengarenga Sandspit, New Zealand. The Leading Edge, 22 (9). pp. 865-881.

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Abstract

The Parengarenga Sandspit (Figure 1) is New Zealand’s only coastal source of silica sand for glass manufacturing. Concerns about the environmental effects of sand extraction from the harbor mouth in the last two decades led the extraction companies to instigate a monitoring program. The Parengarenga beach-dune-monitoring program started in 1982; since that time cross-profiles have been surveyed twice a year from below chart datum (CD) to landward of the sparsely vegetated foredune system. This is the longest continuous record of beach profile measurement in New Zealand, and provides important information on the behavior of this coastal spit system (Parnell, 1997). The sedimentary material in Parengarenga Sandspit consists of 93.5% quartz and has a very uniform fine, sandy grain size (median 193 microns) from near shore to the beach and in the dunes.

Item ID: 8375
Item Type: Article (Refereed Research - C1)
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ISSN: 1938-3789
Date Deposited: 21 Feb 2010 23:45
FoR Codes: 04 EARTH SCIENCES > 0406 Physical Geography and Environmental Geoscience > 040606 Quaternary Environments @ 100%
SEO Codes: 96 ENVIRONMENT > 9614 Soils > 961401 Coastal and Estuarine Soils @ 20%
97 EXPANDING KNOWLEDGE > 970104 Expanding Knowledge in the Earth Sciences @ 80%
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