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Stromatolites of Hamelin Pool

Created 16/10/2025

Updated 16/10/2025

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Hamelin Pool and Lharidon Bight are separated from the open waters of Shark Bay by the Faure Sill - a wall of sand built by sea-grass banks. High evaporation rates increase the salinity of water in Hamelin Pool. Channels across the sill allow tidal exchange of surface waters, but water cannot be completely flushed from the shallow embayment. Microbes flourish because their competitors and predators are controlled by the low nutrient levels and high salinities (about twice that of normal sea water). Stromatelites grow around the margins of Hamelin Pool - in waters less than four metres deep - where sufficient concentrations of ions exist to promote calcification. As no rivers flow into Hamelin Pool, these slow growing structures are not swamped by sediment

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Additional Info

Field Value
Title Stromatolites of Hamelin Pool
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/772b35e5-287a-459f-a9fa-9a9ad377c9c0
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 04/05/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        112.0,
        -44.0
      ],
      [
        154.0,
        -44.0
      ],
      [
        154.0,
        -9.0
      ],
      [
        112.0,
        -9.0
      ],
      [
        112.0,
        -44.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Stromatolites of Hamelin Pool". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/stromatolites-of-hamelin-pool