Pending

Factsheet: Case studies Tarcoola

Modelling the effects of granitic intrusions in the EGST: Magmatic volatiles, contact metamorphism and mechanical effects

Y3 Annual report 2004

Since the 2004 Sumatra-Andaman Earthquake, understanding the potential for tsunami impact on coastlines has become a high priority for Australia and other countries in the Asia-Pacific region. Tsunami warning systems have a need to rapidly assess the potential impact of specific events, and hazard assessments require an understanding of all potential events that might be of concern. Both of these needs can be addressed through numerical modelling, but there are often significant uncertainties associated with the three physical properties that culminate in tsunami impact: excitation, propagation and runup. This talk will focus on the first of these, and attempt to establish that seismic models of the tsunami source are adequate for rapidly and accurately establishing initial conditions for forecasting tsunami impacts at regional and teletsunami distances. Specifically, we derive fault slip models via inversion of teleseismic waveform data, and use these slip models to compute seafloor deformation that is used as the initial condition for tsunami propagation. The resulting tsunami waveforms are compared with observed waveforms recorded by ocean bottom pressure recorders (BPRs). We show that, at least for the large megathrust earthquakes that are the most frequent source of damaging tsunami, the open-ocean tsunami recorded by the BPRs are well predicted by the seismic source models. For smaller earthquakes, or those which occur on steeply dipping faults, however, the excitation and propagation of the resulting tsunami can be significantly influenced by 3D hydrodynamics and by dispersion, respectively. This makes it mode difficult to predict the tsunami waveforms.

Y3 Data base including data from St. Ives, Golden Mile, New Celebration and Hanons Lake

Tarmoola: simulating the controls on mineralisation and predicting New Exploration Targets

Applied geodynamics of a world class mineral system: generating regional targets from conceptual/process understanding

This interim report documents progress against the Project Plan and Project Scope for the Broken Hill Managed Aquifer Recharge Project, Phase 1. Specifically, the report covers: (1) the investigative methodology being used for the Phase 1 Risk Assessment (2) details of key data (assessed/) obtained to meet the project outcomes (3) indicative findings to date. An assessment of pre-existing geospatial, hydrogeological, geophysical and borehole data in the Broken Hill area has identified 6 potential priority areas for further investigation. Initial investigations in these 6 priority areas support the general findings and recommendations of Lewis et al. (2008), and re-affirm the view that there is significant potential to develop options for the Broken Hill Managed Aquifer Recharge (BHMAR) project. In summary, the project is on track to deliver on the Phase 1 Risk Assessment as scheduled (by end February 2009).

This map is part of the series that covers the whole of Australia at a scale of 1:250 000 (1cm on a map represents 2.5 km on the ground) and comprises 513 maps. This is the largest scale at which published topographic maps cover the entire continent. Each standard map covers an area of 1.5 degrees longitude by 1 degree latitude or about 150 kilometres from east to west and 110 kilometres from north to south. There are about 50 special maps in the series and these maps cover a non-standard area. Typically, where a map produced on standard sheet lines is largely ocean it is combined with its landward neighbour. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours (interval 50m), localities and some administrative boundaries. The topographic map and data index shows coverage of the sheets. Product Specifications Coverage: The series covers the whole of Australia with 513 maps. Currency: Ranges from 1995 to 2009. 95% of maps have a reliability date of 1994 or later. Coordinates: Geographical and either AMG or MGA (post-1993) Datum: AGD66, GDA94, AHD. Projection: Universal Traverse Mercator (UTM) Medium: Paper, flat and folded copies.