AusLAMP mapping lithospheric architecture and mineral potential in central and eastern Australia

Geoscience Australia’s Exploring for the Future program (EFTF) provides precompetitive information to inform decision-making by government, community and industry on the sustainable development of Australia's mineral, energy and groundwater resources. By gathering, analysing and interpreting new and existing precompetitive geoscience data and knowledge, we are building a national picture of Australia’s geology and resource potential. This leads to a strong economy, resilient society and sustainable environment for the benefit of all Australians. This includes supporting Australia’s transition to net zero emissions, strong, sustainable resources and agriculture sectors, and economic opportunities and social benefits for Australia’s regional and remote communities. The Exploring for the Future program, which commenced in 2016, is an eight year, $225m investment by the Australian Government.<br>One main component of the EFTF program is the Australian Lithospheric Architecture Magnetotelluric Project (AusLAMP), which is a collaborative national survey by federal government, state and territory governments, and research organizations since late 2013. The project acquires long-period magnetotelluric data on a half-degree grid spacing across Australia and provides first order electrical conductivity/resistivity structure of the Australian continental lithosphere. This reconnaissance dataset improves the understanding of lithospheric structures and tectonic evolution of Australian plate. It provides a framework and a bottom-up approach to identify newly resource potential regions for infill surveys and further study. The dataset also uses for assessment and prediction of geomagnetic storm’s nature hazards. <br>This data release contains a 3D resistivity model and site locations. The 3D model was derived from publicly available AusLAMP data in Australia (excluding western Australia). The model was projected to GDA94 MGA Zone 54 and was converted into SGrid/ASCII format and geo-referenced TIFF format.<br>We acknowledge the traditional custodians of the country where the data were collected. We also acknowledge the support provided by individuals and communities for land access and data acquisition, without whose cooperation these data could not have been collected. The 3D model was produced on the National Computational Infrastructure, which is supported by the Australian government.<br>

澳大利亚地质科学局（Geoscience Australia）发起的“未来勘探”（Exploring for the Future，简称EFTF）项目，旨在为政府、社会公众与行业开展澳大利亚矿产、能源与地下水资源的可持续开发决策提供预竞争（precompetitive）信息支撑。通过收集、分析与解读全新及既有预竞争地质科学数据与相关认知，项目团队正逐步构建覆盖全澳大利亚的地质格局与资源潜力全景图。此举将助力打造强劲经济体、韧性社会与可持续生态环境，惠及全体澳大利亚民众，具体包括支撑澳大利亚向净零排放转型，赋能资源与农业产业实现健康可持续发展，并为澳大利亚各区域及偏远社区创造经济机遇与社会福祉。“未来勘探”项目始于2016年，是澳大利亚政府投入2.25亿澳元、为期八年的科研投资项目。
EFTF项目的核心组成部分之一为澳大利亚岩石圈构造大地电磁计划（Australian Lithospheric Architecture Magnetotelluric Project，简称AusLAMP），该项目自2013年末起由联邦政府、各州及领地政府与科研机构联合开展全国性探测工作。项目以半度网格间距在澳大利亚全境采集长周期大地电磁数据，以此获取澳大利亚大陆岩石圈的一级电导率/电阻率结构特征。该探测数据集有助于深化对澳大利亚板块岩石圈构造与演化历史的认知，可为识别具备资源潜力的新区域以开展加密探测与后续研究提供框架与自下而上的研究路径。该数据集还可用于地磁风暴自然灾害的评估与预测。
本次发布的数据包含三维电阻率模型与测点坐标。该三维模型源自澳大利亚境内（不含西澳大利亚州）公开可获取的AusLAMP数据。模型已投影至GDA94 MGA Zone 54坐标系，并转换为SGrid/ASCII格式与地理参考TIFF格式。
我们向数据采集区域的原住民传统管护者致以敬意。同时我们感谢社会各界与社区为获取土地准入与数据采集提供的支持，若无各方协作，本数据集无法顺利完成采集。本次三维模型的生成依托澳大利亚政府资助的国家计算基础设施（National Computational Infrastructure）完成。

搜集汇总

背景与挑战

背景概述

该数据集是澳大利亚地球科学局“探索未来”计划的一部分，属于澳大利亚岩石圈结构磁大地电流项目，通过半度网格间距收集长周期磁大地电流数据，提供澳大利亚大陆岩石圈的电导率/电阻率结构。数据集包含3D电阻率模型和站点位置，用于研究岩石圈结构、构造演化、资源潜力评估以及地磁风暴灾害预测，模型基于公开的AusLAMP数据（不包括西澳大利亚）并转换为多种格式。