From Geoscience Australia
JSON format icon JSON RDF format icon RDF ISO19115-3 XML

A stream-sediment geochemical orientation survey of the Davenport Province, Northern Territory

Created 17/10/2025

Updated 17/10/2025

JSON format icon JSON RDF format icon RDF ISO19115-3 XML

A geochemical orientation study in the Davenport Province, Northern Territory, indicates that stream-sediment sampling is an effective geochemical technique for mineral assessment, despite overall poor drainage development. Bismuth, Mo , Sn and W from vein-type deposits appear to be dispersed by mechanical weathering, giving rise to well-defined anomalies in both sieved samples and heavy mineral concentrates. Dispersion trains exceed 10 km downstream from mineralisation, and for regional surveys the analysis of a coarse sieved fraction at a sample spacing of 1 to 2 km is recommended. Dispersion of U and Cu appears to be chemically controlled, and anomalies near known mineralisation in both sieved and heavy mineral samples are either less well defined or absent. Dispersion trains rarely extend more than 1 km from mineralisation , and sample spacing of 0.5 to 1 km, or less, would be necessary.

Files and APIs

Tags

Additional Info

Field Value
Title A stream-sediment geochemical orientation survey of the Davenport Province, Northern Territory
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/53225e91-25e5-44a7-a8ff-7f023f0569a0
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        133.9,
        -21.5
      ],
      [
        136.0,
        -21.5
      ],
      [
        136.0,
        -19.9
      ],
      [
        133.9,
        -19.9
      ],
      [
        133.9,
        -21.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "A stream-sediment geochemical orientation survey of the Davenport Province, Northern Territory". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/a-stream-sediment-geochemical-orientation-survey-of-the-davenport-province-northern-territory