This service provides Estimates of Geological and Geophysical Surfaces (EGGS). The data comes from cover thickness models based on magnetic, airborne electromagnetic and borehole measurements of the depth of stratigraphic and chronostratigraphic surfaces and boundaries.

A collection of geological samples associated with drilling activities and submitted by companies under the Offshore Petroleum and Greenhouse Gas Storage Act 2006 (OPGGSA) and previous legislations that required petroleum data to be submitted to the National Offshore Petroleum Data and Core Repository (NOPDCR). The collection also contains cores and cuttings samples acquired by Geoscience Australia and its predecessor BMR, other government agencies and institutions from around Australia. <b>Value: </b>Information related to the subsurface that have the potential to support geological investigations and assessment of a variety of resources. <b>Direct access</b> to petroleum mining sample information is available on National Offshore Petroleum Information Management System (NOPIMS) platform (https://www.ga.gov.au/nopims) via the Core Library tab. <b>Request to access</b> those samples can also be made via the form available on NOPIMS. https://nopims.dmp.wa.gov.au/Nopims/RequestForms/CoreCuttingsAccess/CoreCuttingsAccess

This service provides Estimates of Geological and Geophysical Surfaces (EGGS). The data comes from cover thickness models based on magnetic, airborne electromagnetic and borehole measurements of the depth of stratigraphic and chronostratigraphic surfaces and boundaries.