Exploring for the Future - Magnetic susceptibility data from NDI Carrara 1, South Nicholson region, Australia

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 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) recently acquired as part of the Exploring for the Future program. The drill hole intersected approximately 1100 m of Proterozoic sedimentary rocks uncomformably overlain by 630 m of Cambrian Georgina Basin carbonates.A comprehensive geochemical program designed to provide information about the region’s resource potential was carried out on samples collected at up to 4 meter intervals. This report presents data from magnetic susceptibility analyses undertaken by Geoscience Australia on selected rock samples to establish their ability to be magnetised in an applied external magnetic field.

NDI卡拉拉1号钻孔是一口深地层钻孔，于2020年完工，作为矿产勘探合作研究中心（MinEx CRC）国家钻探计划（NDI）的组成部分，由澳大利亚地质调查局（Geoscience Australia）与北领地地质调查局合作实施。它是卡拉拉次盆（Carrara Sub-Basin）的首个勘探钻孔，该沉积中心是依托“未来勘探”（Exploring for the Future）项目新近采集的2017年L210测线、2019年L212测线地震勘探数据，在南尼科尔森地区新发现的。该钻孔揭露了约1100米的元古代沉积岩，其上不整合覆盖有630米厚的寒武纪乔治娜盆地（Georgina Basin）碳酸盐岩。研究团队以每4米为间隔采集岩样，开展了综合地球化学测试项目，以获取该区域的资源潜力相关信息。本报告展示了澳大利亚地质调查局对选定岩样开展的磁化率分析数据，旨在明确岩样在外加磁场中的磁化能力。