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  • <div>Report on expression of interest, assessment and identification process of case studies to be included in the Exploring for the Future Geoscience Knowledge Sharing Project Remote Community Education Module and Building Relationships with Aboriginal Peoples Modules. &nbsp;The Geoscience Knowledge Sharing Project is a pilot study to discover best practices to improve engagement with non-technical stakeholders. </div>

  • <div>A PowerPoint presentation given by Chief of Minerals, Energy and Groundwater Division Dr Andrew Heap at NT Resources Week 2023. </div><div><br></div><div>This presentation had the theme of 'Precompetitive geoscience - Uncovering our critical minerals potential.'</div>

  • <div>The architecture of the lithosphere controls the distribution of thermal, compositional and rheological interfaces. It therefore plays a fundamental role in modulating key ore-forming processes including the generation, transport, fractionation, and contamination of melts.&nbsp;Recognition of its importance has led to renewed efforts in recent years to incorporate constraints on lithospheric structure into the targeting of prospective regions for mineral exploration. One example is a suggested relationship between the genesis of porphyry copper deposits – known to be associated with evolved, silica-rich magmas – and the thickness of the crust.&nbsp;Here, using a new compilation of spot measurements, we explore the utility of crustal thickness as an exploration tool for porphyry copper deposits.</div> This Abstract was submitted & presented at the 2022 American Geophysical Union (AGU) Fall Meeting 12-16 December (https://www.agu.org/Fall-Meeting-2022)

  • <div>Aboriginal and Torres Strait Islander peoples hold a wealth of traditional knowledge about their land and waters gathered and passed down from observations over thousands of years. Geoscience Australia (GA) is the national geoscience public sector organisation that advises on the geology, hydrogeology, and geography of Australia by applying science and technology to describe and understand the Earth. Respectful and successful two-way engagement with Indigenous peoples provides an opportunity to identify and share traditional understanding, complementing geoscientific studies and preserving traditional knowledge. </div><div>Through its Innovate Reconciliation Action Plan, GA is committed to building mutually beneficial relationships with Aboriginal and Torres Strait Islander peoples. Aligned with this vision, and as part of the Exploring for the Future Program, GA engaged a subject matter expert to undertake a scoping study. The aim of this study was to provide advice to strengthen the internal processes it uses to engage and undertake projects with Indigenous peoples. Drawing on two case studies (northeast NSW; eastern WA), a framework was developed to guide GA staff in the collection and recording of information and knowledge in a culturally appropriate manner. </div><div>The project also delivered a road map to achieve better engagement and inclusion of Indigenous peoples in geoscience studies, to be tested and refined in future work programs. The road map is built on six key elements: (1) increasing Indigenous employment; (2) building partnerships; (3) respecting timeframes; (4) embedding Indigenous values and culture; (5) adhering to ethical practices and principles; and (6) embracing two-way knowledge sharing. Trust is crucial to building a partnership with Indigenous communities, binding the six elements of the road map. </div><div>In the future GA hopes to share the outcomes with other organisations, from applying the framework and road map aimed at improving engagement with Indigenous peoples in groundwater activities and the geosciences more broadly.</div><div><br></div>

  • <div>A powerpoint presentation given by Ivan Schroder at Uncover Curnamona 2022. The presentation covers the activities and upcoming products of the Curnamona Geochemistry module (within the Darling Curnamona Delamerian Project of the Exploring for the Future Program)</div>

  • The first phase of the Australian Government's Exploring for the Future (EFTF) was a multi-year (2016-2020) $100.5 million initiative to increase northern Australia's desirability as a destination for industry investment to stimulate ‘greenfield’ resource exploration. In order to support this fundamental objective of the EFTF program, Geoscience Australia conducted acquisition of a diverse range of new precompetitive datasets across northern Australia, focussing on regions of unrecognised mineral, energy and groundwater resource potential. The Barkly 2D Deep Crustal Reflection Seismic Survey (L212) was acquired in 2019 as a major objective of the EFTF program in partnership with, and co-funded by, the NT Government under the Resourcing the Territory initiative. The Barkly Seismic Survey extends from the newly discovered Carrara Sub-basin in the South Nicholson Basin region to the south-eastern margins of the Beetaloo Sub-basin (Fomin, T., et al. 2019). The Barkly Seismic Survey images interpreted Paleoproterozoic to Mesoproterozoic successions extending from the Carrara Sub-basin to the highly prospective Beetaloo Sub-basin of the McArthur Basin. These successions are concealed by a persistent cover of up to 600 m of Paleozoic Georgina Basin sediments. Interpretation of the Barkly Seismic Survey established three informal geological domains, each defined by structural elements and/or basin characteristics (Southby et al, 2021). This data set contains an exported set of XYZ points from interpreted horizons (Southby et al 2022,) on the Barkly Seismic Survey (L212) in both two way time (TWT ms on PreSTM_19ga lines) and depth (m) re-interpreted on depth indexed PreSDM_19GA lines. The coordinate reference system for this dataset is WGS 1984 Australian Centre for Remote Sensing Lambert. Seismic reference datum is 350 m. The seismic reference datum are described in the EBCDIC headers of the SEGY files for each of the survey lines. Fomin, T., Costelloe, R.D., Holzschuh, J. 2019. L212 Barkly 2D Seismic Survey. Geoscience Australia, Canberra. https://pid.geoscience.gov.au/dataset/ga/132890 Southby, C., Rollet, N., Carson, C., Carr, L., Henson, P., Fomin, T., Costelloe, R., Doublier, M., Close, D. 2021. The Exploring for the Future 2019 Barkly Reflection Seismic Survey: Key discoveries and implication for resources. Geoscience Australia, Canberra. https://pid.geoscience.gov.au/dataset/ga/145107 Southby, C., Carson, C.J., Fomin, T., Rollet, N., Henson, P.A., Carr, L.K., Doublier, M.P., Close, D. 2022. Exploring for the Future - The 2019 Barkly Reflection Seismic Survey (L212). RECORD: 2022/009. Geoscience Australia, Canberra. http://dx.doi.org/10.11636/Record.2022.009

  • <div>NDI Carrara 1 is a deep stratigraphic drill hole completed in 2020 as part of the MinEx CRC National Drilling Initiative (NDI) in collaboration with Geoscience Australia and the Northern Territory Geological Survey. It is the first stratigraphic test of the Carrara Sub-basin, a depocentre newly discovered in the South Nicholson region based on interpretation from seismic surveys (L210 in 2017 and L212 in 2019) acquired as part of the Exploring for the Future program. The drill hole intersected approximately 1120 m of Proterozoic sedimentary rocks unconformably overlain by 630 m of Georgina Basin carbonates.&nbsp;</div><div>Geoscience Australia has undertaken a range of investigations on the lithology, stratigraphy and geotechnical properties of NDI Carrara 1 as well as undertaking a range of analyses of about 500 physical samples recovered through the entire core. Analyses included geochronology, isotope studies, mineralogy, inorganic and organic geochemistry, petrophysics, geomechanics, thermal maturity and petroleum systems investigations.</div><div>Rock-Eval pyrolysis raw data undertaken by Geoscience Australia were reported in Butcher et al. (2021) on selected rock samples to establish their total organic carbon content, hydrocarbon-generating potential and thermal maturity. Interpretation of the Rock-Eval pyrolysis data concluded that a large portion of rocks within the Proterozoic section displayed unreliable Tmax values due to poorly defined S2 peaks resulting from high thermal maturity and low hydrogen content. In order to obtain more reliable Tmax values, Rock-Eval pyrolysis of selected isolated kerogens, where organic matter is concentrated and mineral matrix effects are removed, were conducted and the resulting data are presented in this report.&nbsp;</div><div><br></div>

  • Groundwater is critical to Australia’s future economic development and is the only reliable water source for many regional and rural communities. It also sustains environmental and cultural assets including springs and groundwater-dependent ecosystems. The demand for groundwater in Australia is expected to increase with population growth, economic development and climate change. Geoscience Australia, in partnership with Commonwealth, State and Territory governments is delivering national and regional groundwater investigations through the Exploring for the Future (EFTF) Program to support water management decisions. Geoscience Australia’s groundwater studies apply innovative geoscience tools and robust geoscientific workflows to increase knowledge and understanding of groundwater systems and assessment of groundwater resource potential for economies, communities and the environment. Through integrating geological and hydrogeological data, airborne electromagnetic and ground-based geophysical, hydrogeochemical and remote sensing data, we have developed new geological and hydrogeological conceptual models and identified potential managed aquifer recharge sites in a number of areas across Northern Australia. The EFTF program is focussed on improving our understanding of Australia's groundwater through a National Groundwater Systems project as well as two regional-scale groundwater investigations in Southern Australia. We are commencing an inventory of Australia’s groundwater systems in onshore basins that includes a compilation and broad interpretation of hydrogeological information. This is the basis for the collation and curation of nationally seamless groundwater information to support informed decision making and water resource coordination across jurisdictions. All data and value-added products are freely available for public use via the Exploring for the Future Data Discovery portal (https://portal.ga.gov.au/). This Abstract was submitted to the 2022 Australasian Groundwater Conference 21-23 November (https://agc2022.com.au/)

  • A comprehensive compilation of rock, regolith and groundwater geochemistry across the Curnamona Province and overlying basins. This product is part of the Curnamona Geochemistry module of GA's Exploring for the Future program, which is seeking to understand geochemical baselines within the Curnamona Province to support mineral exploration under cover. Data is sourced from GA, CSIRO and state databases, and run through a quality control process to address common database issues (such as unit errors). The data has been separated by sample type and migrated into a standard data structure to make the data internally consistent. A central source for cleaned geochemical data in the same data format is a valuable resource for further research and exploration in the region.

  • <div>Australia is the driest inhabited continent on Earth and groundwater is crucial to maintaining the country’s population, economic activities, Indigenous culture and environmental values. Geoscience Australia is renewing a national-scale focus to tackle hydrogeological challenges by building upon our historic legacy in groundwater studies at regional and national scales.</div><div><br></div><div>The most comprehensive hydrogeological coverage of the nation is the 1987 Hydrogeology of Australia map, developed by a predecessor of Geoscience Australia. This map provides an overview of groundwater systems and principal aquifers across Australia, based upon the large sedimentary basins, intervening fractured rock areas and smaller overlying sedimentary/volcanic aquifers. However, the currency and completeness of the information presented and accompanying the national hydrogeology map needs to be improved. Updating the extents, data and scientific understanding of the hydrogeological regions across Australia, and improving the accessibility and useability of this information will address many of its current limitations.</div><div><br></div><div>Geoscience Australia, within its Exploring for the Future program, is compiling hydrogeological and related contextual information clearly and consistently across Australia’s major sedimentary basins and intervening fractured rock provinces. This information has been collected for 41 major hydrogeological regions spanning the continent: 36 sedimentary basins and 5 regions dominated by fractured-rock aquifers. The information, collected through a combination of geospatial analyses of national datasets and high-level summaries of scientific literature, will be presented through Geoscience Australia’s online data discovery portal, thereby enabling improved interrogation and integration with other web mapping services.</div><div><br></div><div>The new compilation of nationally consistent groundwater data and information will help to prioritise future investment for new groundwater research in specific regions or basins, inform the work programs of Geoscience Australia and influence the prioritisation of national hydrogeological research more broadly.&nbsp;</div><div><br></div>This Abstract was submitted/presented to the 2022 Australasian Groundwater Conference 21-23 November (https://agc2022.com.au/)