Marine and Coastal Survey Techniques

Link to Marine and Coastal Techniques - Biological SamplingBiological Sampling
In order to understand which animals are able to live under particular conditions, ecologists at Geoscience Australia use a range of methods to sample the seafloor.
Link to Marine and Coastal Techniques - Photography and VideoPhotography and Video
Images of the seafloor are collected using video and still-photography cameras to allow scientists to study the seabed (benthic environment).
Link to Marine and Coastal Techniques - Sediment Coring and DrillingSedimentary Coring and Drilling
Scientists use coring, drilling and sediment sampling equipment, to collect sediment and rock samples from the seafloor and the top few metres of the substrate.
Link to Marine and Coastal Techniques - SeismicSeismic
Seismic profiling is a technique which uses sound pulses to penetrate through the seafloor and generate a 2D cross-section. This technique is particularly suited for mapping sedimentary rocks in the search for oil and gas.
Link to Marine and Coastal Techniques - SonarSonar
Marine geologists use sidescan sonar, multibeam sonar and shallow water sub-bottom profiling equipment to map the seafloor.

Topic contact: marine@ga.gov.au Last updated: November 22, 2010