From Geoscience Australia
JSON RDF ISO19115-3 XML

National Geochemical Survey of Australia: Data Quality Assessment

ARCHIVED

Created 13/01/2025

Updated 13/01/2025

JSON RDF ISO19115-3 XML

Several quality control measures were taken during the project. These included: - Central provision of sampling equipment and sample bags to all field teams - Randomised sample identification scheme so that samples were presented to the laboratories in a sequence unrelated to the order in which they were collected (as much as practically feasible) - Prevention of contamination in the field and in the lab - Prevention of sample mix-up in the field and in the lab - Field duplicates: every 10th site, a field duplicate sample was collected to help quantify total (sampling + analytical) precision (not identified as such to the lab) - Certified Reference Materials (CRMs) TILL-1, TILL-2 (Natural Resources Canada) were run with every batch on GA's XRF & ICP-MS to help quantify analytical precision and bias - Laboratory duplicates (splits), internal project standards (MRIS, WRIS, ORIS, MRIS2, WRIS2), exchanged project standards (GEMAS-Ap, GEMAS-Gr from EuroGeoSurveys; SoNE-1 from United States Geological Survey), and international CRMs (TILL-1, TILL-3, LKSD-1, STSD-3 from Natural Resources Canada) were covertly inserted in the analytical suites for in-house and external analyses to help quantify analytical precision and bias (not identified as such to the lab) - Internal project standard (GRIS) for pH 1:5, EC 1:5 and grain size measurements (not identified as such to the lab) In addition to the above measures, the analytical labs applied their own QA/QC procedures, including running CRMs and/or internal standards, replicating digests and/or analysis, and analysis of blanks. The present report uses some of the above data to quantitatively assess the quality of the NGSA data, which allows a quality statement to be made about the NGSA data.

Files and APIs

Tags

Additional Info

Field Value
Title National Geochemical Survey of Australia: Data Quality Assessment
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/5cdcdbcd-0397-4799-8575-e67aa5383ee3
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[112.0, -44.0], [154.0, -44.0], [154.0, -12.0], [112.0, -12.0], [112.0, -44.0]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "National Geochemical Survey of Australia: Data Quality Assessment". 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-data-quality-assessment

Original dataset
Dataset copies

No duplicate datasets found.