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Services

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Piston coring

Collection of sediment cores using advanced piston corers, custom-engineered where necessary to suit site conditions, ensuring high-quality samples for geochemical and environmental assessment.

Vessel and skipper Hire 

Provision of fully equipped vessels for sampling and survey operations, including safety gear, GPS, and depth measurement tools, enabling efficient fieldwork across diverse aquatic environments.​

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Grab Sampling

Collection of surface sediments using specialised grab samplers, providing representative samples for geochemical, environmental, and ecological analysis. 

Vibocoring

Accurate collection of sediment cores using vibrocorers for unconsolidated substrates, providing intact samples for detailed geochemical and stratigraphic analysis.

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Algae sampling

Collection of macroalgae and microalgae from aquatic systems, supporting ecological, productivity, and biogeochemical studies.

Grain Size analysis 

Sediment grain size analysis using laser diffraction, wet sieving, hydrometer, and pipette methods at our Roseville facility, providing reliable data for sediment characterisation and environmental interpretation.

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Water quality monitoring

Collection of water samples across diverse aquatic environments, delivering reliable data for chemical, physical, and biological assessments.

Biota Sampling

Collection of aquatic organisms for ecological and toxicological studies, ensuring samples are representative and uncontaminated.

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Pore Water Extraction

Extraction of interstitial water from sediments, enabling chemical analysis for environmental and geochemical investigations.

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©2025 by Geochemical Assesments Pty Ltd

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