Major, minor, and trace element lithogeochemistry of the Barney Creek Formation, Carpentaria Province northern Australia

The Proterozoic Carpentaria province in northern Australia is host to several of the world’s largest clastic dominant (CD-type) massive sulphide deposits. These deposits are mostly hosted primarily in dolomitic silt- and mudstones. The hydrothermal alteration footprint of these CD-type systems is not well constrained, which poses challenges for the targeting of future discoveries. One important aspect to developing alteration models relates to defining the composition of the unaltered protolith to mineralization. In this dataset, we provide whole rock lithogeocheochemical data generated from samples obtained from drill-holes that intersected the mineralization in the Teena subbasin. A small number of samples are from 2 drill-holes from an adjoining subbasin (Myrtle) in the area. The samples were selected from stratigraphy of the Barney Creek Formation and are from the hangingwall to the mineralization in either subbasin. This data report includes bulk rock major, minor, and trace element composition. The data were generated using X-ray fluorescence, inductively coupled plasma mass spectrometry, and LECO analyses. Access to drill cores was granted by Teck Australia (Pty Ltd) and the drill core IDs and depths of individual samples are reported in the data table. For further details see: Magnall et al. (2021 - WHEN AVAILABLE)

澳大利亚北部的元古宙卡奔塔利亚省（Proterozoic Carpentaria province）赋存全球数处规模最大的碎屑岩主导型（clastic dominant，CD型）块状硫化物矿床。此类矿床多赋存于白云质粉砂岩与泥岩地层中。该类CD型矿床系统的热液蚀变足迹目前尚未得到明确约束，这为后续找矿靶区的圈定带来了挑战。构建蚀变模型的核心环节之一，在于明确成矿作用对应的未蚀变原岩组分。本数据集提供了取自钻孔岩芯的全岩岩石地球化学数据，所有样品均采自巴尼克里克组（Barney Creek Formation）地层，且对应两个次盆地内矿化带的上盘围岩：其中多数样品取自穿过蒂纳次盆地（Teena subbasin）矿化带的钻孔，少量样品取自毗邻的默特尔次盆地（Myrtle subbasin）的2个钻孔。本数据集报告包含全岩主量、次要及微量元素组成数据，相关测试通过X射线荧光光谱法（X-ray fluorescence, XRF）、电感耦合等离子体质谱法（inductively coupled plasma mass spectrometry, ICP-MS）及LECO元素分析技术完成。钻孔岩芯的获取许可由泰克澳大利亚私人有限公司（Teck Australia (Pty Ltd)）授予，单个样品对应的钻孔编号及样品深度已在数据表中列明。更多详细信息可参考Magnall等（2021年，待正式发布）。