cr122120

EPM 25148 is located in northeast Queensland, and is centred approximately 45 km southwest of Charters Towers and 150 km southwest of Townsville. The EPM is one of a group of seven exploration tenements in the Charters Towers district that comprise the Liontown Project Area held by Auctus Resources Pty Ltd (Auctus). The tenement was granted to Mungana Goldmines Ltd (MUX) on the 25th of November 2013 and is now wholly owned by Auctus.

The EPM comprises 28 sub-blocks in five groups. The southern four groups are located over basement of Seventy Mile Range Group. The northern group is located over Ordovician and Siluro‐Devonian granitoids and, locally, over Triassic Warang Sandstone.

The tenement has been explored by numerous companies since the 1960’s, with exploration focused mainly on the search for volcanic hosted massive sulphide deposits and, more recently, intrusion related gold deposits.

In 2018, Minotaur Exploration entered into a Joint Venture with Auctus at what is now called the Windsor Project. This project encompasses seven tenements including EPM 25148. On the 26th of September 2018 Minotaur applied and was granted Project Status on 3rd January 2019 over all the tenements within the Windsor JV, including EPM 25148. Minotaur are currently Manager and Operator of the Joint Venture.

No field activities were undertaken during the current period. Exploration activities were restricted to office-based studies including review of historical exploration from Open File reports and compilation of historical exploration and geophysical data.

A review of historical exploration by CRAE within EPM25148 Liontown 5 revealed a series of SIROTEM lines with one basement anomaly on Loop 60. Three drillholes were drilled by CRAE to test the Loop 60 anomaly however low level Cu, Pb and Zn and no conductive minerals or lithologies were returned by the drilling indicating that the anomaly has possibly not been tested. As the anomaly appears not to have been tested by drilling a line of modern moving loop ground EM is recommended over the Loop 60 anomaly. If a conductive body is revealed then drill testing of the anomaly is recommended.

A review of historical exploration by Liontown within EPM25148 Liontown 5 highlighted their previous delineation of a series of 4 magnetic anomalies interpreted to represent intrusive bodies that are possibly related to an IRGS. Previous drilling over the two of the magnetic anomalies is shallow and the basement lithologies returned are not those generally associated with an IRGS indicating that the magnetic bodies remain untested.

Modelling of the magnetic anomalies is recommended followed by ground magnetics and IP to delineate possible IRGS targets for drill testing.

EPM 25148（矿产勘探许可证，Exploration Permit for Minerals）位于昆士兰州东北部，中心位置大致在查特斯堡（Charters Towers）西南约45公里、汤斯维尔（Townsville）西南约150公里处。该EPM是查特斯堡地区7处矿产勘探租约（exploration tenements）之一，隶属于奥克图斯资源私人有限公司（Auctus Resources Pty Ltd，简称Auctus）所持有的莱昂敦项目区（Liontown Project Area）。该租约于2013年11月25日授予蒙加纳金矿有限公司（Mungana Goldmines Ltd，简称MUX），目前为奥克图斯全资所有。

该EPM包含5组共28个次级区块。其中南部4组次级区块分布于七十英里山脉群（Seventy Mile Range Group）基底之上；北部一组次级区块则分布于奥陶纪（Ordovician）与志留-泥盆纪（Siluro-Devonian）花岗岩类（granitoids）地层之上，局部区域覆盖三叠纪沃朗砂岩（Triassic Warang Sandstone）。

自20世纪60年代以来，多家企业曾对该租约区域开展勘探工作，勘探方向主要围绕火山岩型块状硫化物矿床（volcanic hosted massive sulphide deposits）展开，近年则转向侵入岩相关金矿床（intrusion related gold deposits）的找寻。

2018年，米诺陶勘探公司（Minotaur Exploration）与奥克图斯就如今被称为温莎项目（Windsor Project）的区域设立合资企业（Joint Venture）。该项目涵盖包括EPM 25148在内的7处矿产勘探租约。2018年9月26日，米诺陶提出项目资质申请，并于2019年1月3日获得温莎合资项目下所有租约区域的项目资质，其中包含EPM 25148。目前米诺陶担任该合资企业的经理与作业方。

本次报告期内未开展任何野外作业，勘探活动仅限于室内研究工作，包括梳理公开档案报告（Open File reports）中的历史勘探资料，以及汇编历史勘探与地球物理数据。

CRAE对EPM 25148的莱昂敦5号区块的历史勘探资料进行复盘后，发现一系列SIROTEM测线（SIROTEM lines），其中环60（Loop 60）存在一处基底异常。CRAE曾施工3个钻孔以验证环60异常，但仅返回低含量的铜（Cu）、铅（Pb）与锌（Zn），未发现导电矿物（conductive minerals）或目标岩性（lithologies），表明该异常可能未得到有效验证。鉴于该异常尚未经钻探有效验证，建议在环60异常区域部署现代移动式回线地面电磁（ground EM）测量；若发现导电体，则建议对该异常开展钻探验证。

莱昂敦团队对EPM 25148的莱昂敦5号区块的历史勘探资料进行复盘后，确认此前已圈定4处磁异常（magnetic anomalies），解释为可能与侵入岩相关金系统（Intrusion-Related Gold System，IRGS）有关的侵入体。此前针对其中两处磁异常的钻探深度较浅，且返回的基底岩性通常与侵入岩相关金系统无关，表明该磁异常体尚未得到有效验证。

建议先对磁异常进行建模分析，随后开展地面磁测与激发极化法（Induced Polarization，IP）测量，以圈定可用于钻探验证的侵入岩相关金系统找矿靶区。