b'Geophysics in the SurveysNewsare now 5345 density determinations on drill core in the database, together with 18 107 core magnetic susceptibility readings (Figure 8), in addition to many hundreds Figure 5.Alberton-Mathinna 3D model with Sideling Sandstone removed to partly reveal structurally interpreted 3D fault network.Figure 8.Distribution of density (black) and magnetic susceptibility (red) measurements on drill core recorded in MRTs petrophysical database as of July 2019.of sonic velocity (mostly P- with some S-wave), electrical resistivity, chargeability and magnetic remanence measurements. These can all be supplied on request, also in due course online via GAs Rock Properties database.Mark Duffett, Daniel Bombardieri Mineral Resources Tasmania mark.duffett@stategrowth.tas.gov.au Daniel.Bombardieri@stategrowth.tas.gov.auFigure 6.Alberton-Mathinna modelled granitoid surface with representative structural construction sections and gold occurrences. The Golden Gate mine within the foreground cluster (SE corner) has produced over 260 000 ounces of gold.Figure 7.Starting model (top) and final ensemble inversion summary model (bottom) showing voxels with the same geological unit assigned above a 99% threshold of acceptable models, on a west-east section through the Golden Gate mine.AUGUST 2019 PREVIEW 24'