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.

Geognostics OZ SEEBASE depth‐to‐economic basement model of Australia and ancillary datasets. In this update, basement is defined as the top of igneous or metamorphic crust at the base of undeformed sediments, regardless of age. Note that in deeper parts of some basins, such as the greater McArthur Basin, the deepest section may be metasedimentary. Data provided by Geognostics, 2021. OZ SEEBASE® 2021 (Version 1, May 2021). Geognostics Australia Pty Ltd, https://www.geognostics.com/oz‐seebase‐2021. Web Map Service layers include: - Depth to Basement Image - Depth to Basement Grid - Sediment Thickness Grid - Derivative OZ SEEBASE Sediment Thickness Grid - Basement Thickness Grid Disclaimer: The conclusions and recommendations expressed in this Geognostics digital release represent the opinions of the authors based on the data available to them. No liability is accepted for the total accuracy of this report or related datasets, nor any commercial decisions or actions made resulting from this report.

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.