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National Geochemical Survey of Australia: Field Data

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Created 20/01/2025

Updated 20/01/2025

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From 2007 to 2009, the National Geochemical Survey of Australia (NGSA) project collected sediment samples from 1315 sites located in 1186 catchments (~10 % of which were sampled in duplicate) from across Australia. Overbank sediments were chosen as sampling media, with a near-surface sample (Top Outlet Sediment, TOS, from 0-10 cm below the surface) and a bottom sample (Bottom Outlet Sediment, BOS, ~10 cm interval between approximately 60-80 cm below the surface) being collected. The sample sites were selected to be near outlets or spill points of large catchments, so that overbank sediments there could reasonably be assumed to represent well-mixed, fine-grained composite samples of all major rock and soil types present in the catchment. Sample sites and their corresponding sediment samples were subjected to a detailed description and the determination of bulk parameters in the field (texture, moist and dry colour, field pH). This is complemented by a series of laboratory measurements and analyses reported elsewhere. This report documents the complete field dataset and discusses the pH and soil colour data that were collected in the field. At the time of writing, field pH and colour are the only datasets available for all sites. Maps are presented showing the spatial distribution of these data in both TOS and BOS samples. These data will be the basis of further interpretative work.

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Field Value
Title National Geochemical Survey of Australia: Field Data
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/dc0ab6fc-9c55-4f51-8975-00dc2d5d8460
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[96.0, -44.0], [168.0, -44.0], [168.0, -9.0], [96.0, -9.0], [96.0, -44.0]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "National Geochemical Survey of Australia: Field Data". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/national-geochemical-survey-of-australia-field-data

Original dataset
Dataset copies

No duplicate datasets found.