KOLWEZI, DEMOCRATIC REPUBLIC OF CONGO – Robert Friedland and Yufeng “Miles” Sun, Co-Chairmen of Ivanhoe Mines (TSX: IVN; OTCQX: IVPAF), announce that the company plans to soon commence an expansive 2021 exploration program on its 100%-owned Western Foreland exploration licences, which include approximately 2,550 square kilometres in close proximity to the Kamoa-Kakula Copper Project in the Democratic Republic of Congo (DRC).
Ivanhoe’s DRC exploration group is targeting high-grade Kamoa-Kakula-style copper mineralization through a regional exploration and drilling program on the Western Foreland exploration ground, which shares the same geological setting as Kamoa-Kakula. Ivanhoe Mines’ 100%-owned exploration licences cover the ground that Ivanhoe’s geological team considers to be the most prospective in the Western Foreland region.
The initial 2021 exploration program includes 40,000 metres of combined aircore and diamond drilling, airborne and ground-based geophysics, soil sampling and road construction. Field work will commence at the start of the 2021 dry season, which typically begins in April. The initial 2021 budget is US$16 million, which may be expanded based on program results. Much of this year’s exploration will focus on more than 1,700 square kilometres of new, 100%-owned permits that were acquired in 2019 and received environmental certification in 2020.
“Though the COVID-19 pandemic curtailed our field exploration plans in 2020, we were able to accomplish a significant amount of geophysical surveys and sampling work, which are our key early-stage prospecting techniques for identifying high-priority targets in this part of the Central African Copperbelt,” said Mr. Friedland.
“Exploration is in our DNA, and given the outstanding regional prospectivity of our landholdings in close proximity to the Kamoa-Kakula discovery, we are anxious to ramp up our exploration program as aggressively as possible.
“Our record of discovery successes at Kamoa-Kakula isunparalleled, and we have tremendous confidence in the ability and tenacity of our exploration team to leverage our proprietary exploration knowledge to deliver the DRC’s next great copper discovery on our 100%-owned ground.
“It was in the spring of 2016 that the team of geologists now leading our Western Foreland exploration efforts made the Kakula Discovery, which has transformed the Kamoa-Kakula Project into the world’s highest-grade, major copper mining operation. Given the geological similarities between Kamoa-Kakula and our adjoining exploration ground, which is more than six times larger than the Kamoa-Kakula mining licence, the Western Foreland area is unquestionably one of the most prospective copper exploration districts anywhere in the world.
“While Ivanhoe will soon join the ranks of leading copper producers, our commitment to high-quality exploration with leading-edge technology is core to our long-term business strategy. We view it as our research and development division, designed to provide us with a pipeline of new development opportunities for years to come.”
Ivanhoe’s geologists applying same exploration models on the Western Foreland licences that successfully led to the discoveries of Kakula, Kakula West, Makoko Sud and Kamoa North Bonanza Zone
Ivanhoe’s Western Foreland Exploration Project consists of 17 licences to the north, south and west of the Kamoa mining licences. The 17 licences cover a combined area of approximately 2,550 square kilometres. The primary exploration target in the Western Foreland area is Kamoa-Kakula-style sedimentary copper mineralization that occurs at the base of the lower Nguba “Grand Conglomerate”, particularly where the lower Nguba sits in direct contact with the underlying Upper Roan sandstones.
Exploration models that successfully led to the discoveries of Kakula, Kakula West, and the Kamoa North Bonanza Zone on the Kamoa-Kakula joint-venture mining licence, are being applied to Ivanhoe’s Western Foreland extensive land package by the same team of exploration geologists responsible for the previous discoveries.
The ideal structural setting for Kamoa-style mineralization usually is close to the western Nguba Basin edge. Deposits occur at the base of the Nguba Group, a widely developed package of rocks that mark the transition from a thick underlying sequence of sediments deposited under oxidizing conditions (good for transporting copper), to deposition under reducing conditions (good for precipitating copper). Ivanhoe’s 100%-owned exploration permits cover approximately 175 kilometres of prospective strike in this target setting.
Additional exploration permits increase Ivanhoe’s coverage of the most prospective ground
In 2019, Ivanhoe acquired an additional 1,711 square kilometres of 100%-owned exploration permits within the Western Foreland area, solidifying its landholdings of the most prospective ground. In Q2 2020, Ivanhoe received approval for its environmental mitigation and rehabilitation plan for the new permits, allowing exploration work to begin. The new permits, particularly those southwest of Makoko Sud, are located in an area that never before has been explored in any detail with modern exploration techniques. There is limited access to the area and Ivanhoe is planning to construct new bridges and roads to allow its exploration teams into the area. Having such an underexplored area immediately along strike from one of the largest copper deposits in the world, represents a compelling exploration opportunity.
Reconnaissance exploration generating targets for drilling
In addition to drilling in early 2020 at the Kiala Discovery that adjoins the northern boundary of the Kamoa-Kakula mining licence, and drilling in the second half of 2020 at the Makoko Sud Discovery – approximately 20 kilometres west of the Kakula Discovery – Ivanhoe’s exploration work in 2020 included stream-sediment sampling, soil geochemical sampling, as well as outcrop and stream mapping on the new tenements acquired in 2019. In total, 411 stream-sediment samples and 958 soil samples were collected and processed for analysis.
The sampling and mapping work has enhanced Ivanhoe’s geological understanding of the exploration permits and moves the team closer to generating targets for future exploration and drilling. Ivanhoe’s geologists first identified the prospectivity of the Kamoa-Kakula area in the mid-2000s by stream-sediment and soil-geochemical sampling.
A high-resolution magnetic and radiometric survey commenced in Q4 2020 and is ongoing. To date, more than 80% of Ivanhoe’s Western Foreland exploration licences have been covered by the survey.In Q2 2021, Ivanhoe plans an Xcalibur airborne gravity survey. The goal of the surveys is to better understand the stratigraphic and structural architecture of the new exploration areas, something that is key to generating early-stage targets for ground surveys.
Western Foreland area looking south from Makoko toward the Zambian Border.
Assay results confirm strike extension of Kamoa North high-grade copper trend for at least 800 metres on Ivanhoe’s 100%-owned exploration licences at the Kiala Discovery
Mr. Friedland and Mr. Sun also announced thatassay results from drilling completed in early 2020 confirm the extension of the Kamoa North high-grade copper structure for at least 800 metres in the Kiala Discovery area, part of Ivanhoe’s 100%-owned Western Foreland licences that adjoin the northern boundary of the Kamoa-Kakula mining licence.
The high-grade copper zone at the Kiala Discovery was originally discovered on the Kamoa-Kakula mining licence, and delineated through a series of step-out fences of holes drilled on 100-metre spacings in a northerly direction onto Ivanhoe’s 100%-owned exploration licences.
The structure controlling the zone of high-grade copper remains open to the north, and Ivanhoe now has secured 35 kilometres of highly-prospective, 100%-owned exploration ground along trend and to the north of the Kiala Discovery.
Selected drill holes at the Kiala Discovery include:
- DKIA_DD007 intersected 7.21 metres (true width) of 7.98% copper, at a 1% and 2% copper cut-off, from 345.44 metres down hole.
- DKIA_DD011 intersected 3.82 metres (true width) of 5.35% copper, at a 1% and 2% copper cut-off, from 348.00 metres down hole.
- DKIA_DD014 intersected 5.30 metres (true width) of 12.42% copper, at a 1% and 2% copper cut-off, from 366.70 metres down hole.
- DKIA_DD016 intersected 3.59 metres (true width) of 9.71% copper, at a 1% and 2% copper cut-off, from 351.40 metres down hole.
Geology of the Kiala high-grade copper trend
Copper mineralization at Kiala predominantly ocurs at positions where the Kamoa Pyritic Siltstone gradually narrows (“onlaps”) across the underlying Roan conglomerate and sandstone unit. The high-grade copper zone is between 50 metres and 150 metres wide, and trends in a north-south direction, co-incident with a series of north-south trending growth faults.
The Kiala area is considered prospective, as two key ingredients to high-grade mineralization occur in this area. First, the faulting is postulated to have provided increased fluid flow of copper-rich brines in this area. Second, the onlap of the basal Nguba Diamictite units has brought the highly-reduced silstone into contact with the Roan aquifer. This favourable combination also has been responsible for Bonanza-style grades in the Kamoa North area of the Kamoa-Kakula Project.
High copper grades have been intersected on four of the five 200-metre-spaced sections completed to date. Copper mineralization at the Kiala Discovery predominantly is chalcopyrite and bornite, with localized minor chalcocite. An upward zonation from bornite to chalcopyrite also is present (see Figure 4).
Figure 1: Plan view of the Kiala high-grade zone showing copper grades.
Figure 2: Section Line 1 across the Kiala high-grade copper zone.
Figure 3: Section Line 2 across the Kiala high-grade copper zone.
Figure 4: Copper grade profiles of recent drill holes in the Kiala Discovery zone.
Recent drilling on the Western Foreland licences at the Makoko Sud discovery, due west of the Kakula Deposit, intercepted significant visual copper mineralization over an additional 7.5-kilometre strike length
After restricting exploration drilling activities in early 2020 as a safety precaution to protect employees and drilling contractors from COVID-19, drilling re-commenced in Q3 2020. The 16 holes, totalling 6,871 metres, were drilled to the west of the Makoko Sud Discovery area, which is located approximately 20 kilometres west of the Kakula Deposit.
The drilling intercepted significant, shallow copper mineralization (including up to 6.01 metres grading 3.38% copper) over a 7.5-kilometre strike length in a south-westerly direction along strike from the initial Makoko Sud Discovery area. Road clearance commenced in the second half of 2020 to extend the current exploration opportunities to the south and west from Makoko Sud.
Significant new drill intercepts from Makoko West include:
- DMKK_DD117, a 3.6-kilometre step-out hole from previous Makoko Sud drilling, intersected 6.01 metres (true width) of 3.38% copper, at a 2% copper cut-off from 259.72 metres down hole and 9.75 metres (true width) of 2.63% copper at a 1% copper cut off.
- DMKK_DD118, a 1.6-kilometre step-out hole from previous Makoko Sud drilling, intersected 4.19 metres (true width) of 3.01% copper, at a 2% copper cut-off from 209.50 metres down hole and 5.15 metres (true width) of 2.78% copper at a 1% copper cut off.
- DMKK_DD123, a 7.5-kilometre step-out hole from previous Makoko Sud drilling, intersected 3.33 metres (true width) of 1.44% copper, at a 2% copper cut-off from 570 metres down hole and 17.77 metres (true width) of 1.39% copper at a 1% copper cut off.
The recent Makoko West drilling is extremely significant for the exploration potential of the new exploration permits as it demonstrates that both the target stratigraphy extends westward and that the copper mineralizing system on the western edge of the basin is laterally extensive. Future drilling in the Makoko West area will target specific structural locations that are conducive to developing higher copper grades.
Table 1: Assay composites at 1% and 2% copper cut-off for Kiala drill holes.
Table 2: Location information for the Kiala drill holes.
Table 3: Assay composites at 1% and 2% copper cut-off for recent Makoko West drill holes.
Some of the results in Table 3 (marked by an asterisk) are reported as portable XRF (pXRF) results (niton values). Full ICP results are pending for these holes. The procedure used for pXRF results is outlined under the Qualified Person and Quality Control and Assurance section on the following page.
Table 4: Location information for the Makoko West drill holes.
Qualified Person and Quality Control and Assurance
Scientific and technical information in this news release has been reviewed and approved by Stephen Torr, P.Geo., Ivanhoe Mines’ Vice President, Project Geology and Evaluation, a Qualified Person under the terms of National Instrument 43-101. Mr. Torr is not independent of Ivanhoe Mines. Mr. Torr has verified the technical data disclosed in this news release.
Ivanhoe Mines maintains a comprehensive chain of custody and QA-QC program on assays from its Western Foreland exploration project. Half-sawn core is processed at IME’s on-site preparation laboratory and prepared samples then are shipped by secure courier to Bureau Veritas Minerals (BVM) Laboratories in Australia, an ISO17025-accredited facility. Copper assays are determined at BVM by mixed-acid digestion with ICP finish. Industry-standard certified reference materials and blanks are inserted into the sample stream prior to dispatch to BVM.
A number of the results included in this release are based on portable XRF (pXRF) readings (niton values). Samples are pulverized at the project’s onsite laboratory, pressed into a pellet and analyzed using a pXRF instrument under controlled conditions. Ivanhoe Mines routinely tests pulps prior to dispatch to BVM with a pXRF instrument and the correlation between the two techniques has demonstrated the pXRF values are reasonably accurate. Nevertheless, the values that are included in this news release are for indicative purposes and should not be relied upon with the same degree of certainty as those reported from a commercial laboratory.
About Ivanhoe Mines
Ivanhoe Mines is a Canadian mining company focused on advancing its three principal joint-venture projects in Southern Africa: the development of major new, mechanized, underground mines at the Kamoa-Kakula copper discoveries in the DRC and at the Platreef palladium-platinum-nickel-copper-rhodium-gold discovery in South Africa; and the extensive redevelopment and upgrading of the historic Kipushi zinc-copper-germanium-silver mine, also in the DRC.
Kamoa-Kakula is expected to begin producing copper concentrate in July 2021 and, through phased expansions, is positioned to become one of the world's largest copper producers. Kamoa-Kakula and Kipushi will be powered by clean, renewable hydro-generated electricity and will be among the world’s lowest greenhouse gas emitters per unit of metal produced. Ivanhoe also is exploring for new copper discoveries on its wholly-owned Western Foreland exploration licences in the DRC, near the Kamoa-Kakula Project.
Investors: Bill Trenaman +1.604.331.9834 / Media: Matthew Keevil +1.604.558.1034
Cautionary statement on forward-looking information
Certain statements in this release constitute “forward-looking statements” or “forward-looking information” within the meaning of applicable securities laws, including without limitation, (i) statements regarding the planned 2021 exploration program on the Western Foreland exploration licences, including that the program includes 40,000 metres of combined aircore and diamond drilling, airborne and ground-based geophysics, soil sampling and road construction; and (ii) statements regarding field work will begin at the start of the 2021 dry season, which typically begins in April.
Such statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the company, or industry results, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements or information. Such statements can be identified by the use of words such as “may”, “would”, “could”, “will”, “intend”, “expect”, “believe”, “plan”, “anticipate”, “estimate”, “scheduled”, “forecast”, “predict” and other similar terminology, or state that certain actions, events or results “may”, “could”, “would”, “might” or “will” be taken, occur or be achieved. These statements reflect the company’s current expectations regarding future events, performance and results and speak only as of the date of this release.
All such forward-looking information and statements are based on certain assumptions and analyses made by Ivanhoe Mines’ management in light of their experience and perception of historical trends, current conditions and expected future developments, as well as other factors management believe are appropriate in the circumstances. These statements, however, are subject to a variety of risks and uncertainties and other factors that could cause actual events or results to differ materially from those projected in the forward-looking information or statements including, but not limited to, unexpected changes in laws, rules or regulations (including retroactive application), the failure of contractual agreements with the State to be honoured in whole or in part, or in the enforcement or application of laws, rules and regulations by applicable authorities; the failure of parties to contracts to perform as agreed; social or labour unrest; changes in commodity prices, including the price of copper; unexpected failure or inadequacy of infrastructure, or delays in the development of infrastructure, the failure of exploration programs or other studies to deliver anticipated results or results that would justify and support continued studies, development or operations, and the results of economic studies and evaluations. Other important factors that could cause actual results to differ from these forward-looking statements also include those described under the heading “Risk Factors” in the company’s most recently filed MD&A as well as in the most recent Annual Information Form filed by Ivanhoe Mines. Readers are cautioned not to place undue reliance on forward-looking information or statements. The factors and assumptions used to develop the forward-looking information and statements, and the risks that could cause the actual results to differ materially are set forth in the “Risk Factors” section and elsewhere in the company’s most recent Management’s Discussion and Analysis report and Annual Information Form, available at www.sedar.com.
Although the forward-looking statements contained in this news release are based upon what management of the company believes are reasonable assumptions, the company cannot assure investors that actual results will be consistent with these forward-looking statements. These forward-looking statements are made as of the date of this news release and are expressly qualified in their entirety by this cautionary statement. Subject to applicable securities laws, the company does not assume any obligation to update or revise the forward-looking statements contained herein to reflect events or circumstances occurring after the date of this news release.
刚果民主共和国科卢韦齐— 艾芬豪矿业(TSX: IVN; OTCQX: IVPAF) 联席董事长罗伯特·弗里兰德(Robert Friedland) 与孙玉峰(Miles Sun) 今天欣然宣布，2021年将在其全资拥有的西部前沿(Western Foreland) 探矿权内展开大规模勘查工作，覆盖面积约2,550平方公里。西部前沿探矿权位于刚果民主共和国 (以下简称“刚果(金)”)，毗邻卡莫阿-卡库拉 (Kamoa-Kakula) 铜矿项目。
卡莫阿类型矿化的理想构造环境是靠近西部Nguba盆地的边缘，矿床赋存在Nguba群的底部。Nguba群在区内广泛发育，从氧化环境下的厚大沉积序列 (有利于铜的迁移) 转变为还原环境下的沉积序列 (有利于铜的沉淀富集)。艾芬豪全资拥有的探矿权涵盖勘查前景广阔的、走向长度约175公里的勘查区，恰好位于这种地质环境。
化验结果确认卡莫阿北区高品位铜矿化向艾芬豪全资拥有的Kiala 探矿区内至少延伸了800 米
弗里兰德先生和孙先生还宣布，2020年初完成的钻孔分析结果确认，卡莫阿北区的高品位铜矿化向Kiala 探矿区内至少延伸了 800 米。Kiala 探矿区是艾芬豪全资拥有的西部前沿探矿权的一部分，位于卡莫阿-卡库拉采矿权的北部。
- DKIA_DD007 自345.44米，见矿7.21米(真实宽度)，铜品位7.98% (以 1%及2% 铜边界品位计算)。
- DKIA_DD011 自348.00米，见矿3.82米(真实宽度)，铜品位5.35% (以 1%及2% 铜边界品位计算)。
- DKIA_DD014 自366.70米，见矿5.30米(真实宽度)，铜品位12.42% (以 1%及2% 铜边界品位计算)。
- DKIA_DD016 自351.40米，见矿3.59米(真实宽度)，铜品位9.71% (以 1%及2% 铜边界品位计算)。
Kiala勘查区的铜矿化主要赋存在卡莫阿黄铁矿粉砂岩向下伏罗安群砾岩和砂岩逐渐变窄 (“超覆”) 的位置。高品位铜矿化的宽度在50米与150米之间，南北走向，与一系列南北向断层走向一致。
图 2 ﹕ Kiala 高品位铜矿带1号勘探线剖面。
图 3 ﹕ Kiala 高品位铜矿带2号勘探线剖面。
图 4﹕ Kiala 勘查区最近完成的钻孔铜品位柱状图。
作为防疫措施以保护员工和承包商免受COVID-19疫情冲击，2020年初暂停了勘查钻探工作，其后于2020年第三季度重启。目前，位于卡库拉矿床以西约20公里处的Makoko探矿区已完成16个钻孔，共计 6,871 米。
钻探工作在Makoko探矿区发现重要的、赋存较浅的铜矿化 (包括6.01米，铜品位3.38%)，从Makoko最初发现的矿化区向南西方向延伸，走向上超过7.5公里。 2020年下半年开始进行道路清理，将勘查范围扩大至Makoko矿区的南部和西部。
- DMKK_DD117 ，距离Makoko之前钻探区3.6公里的探边孔，自259.72米见矿6.01米(真实宽度)，铜品位3.38% (铜边界品位2%) 。以1%铜边界品位计算，见矿9.75米(真实宽度)，铜品位2.63%。
- DMKK_DD118 ，距离Makoko之前钻探区1.6公里的探边孔，自209.50米见矿4.19米(真实宽度)，铜品位3.01% (铜边界品位2%) 。以1%铜边界品位计算，见矿5.15米(真实宽度)，铜品位2.78%。
- DMKK_DD123 ，距离Makoko之前钻探区7.5公里的探边孔，从井下钻孔570米深度开始，见矿3.33米(真实宽度)，铜品位1.44% (以2%铜边界品位计算) 。以1%铜边界品位计算，则见矿17.77米(真实宽度)，铜品位1.39%。
表 1﹕ Kiala 钻孔复合物的分析结果 (以1%及2%铜边界品位计算)。
表 3﹕ Makoko西部最近的钻孔分析结果 (以1%及2%铜边界品位计算)。
表3的部分结果 (以星号标示) 以便携式XRF (pXRF) 的测试结果 (Niton值)报告。这些钻孔的完整ICP分析尚在测试过程中。下页的“合资格人士”和“质量控制和保证”部分概述了使用pXRF的工作程序。
本新闻稿中的科学和技术信息，已经过艾芬豪矿业项目地质和评估副总裁 Stephen Torr 审查和批准。Torr 先生是符合NI 43-101 条款下的合资格人士，并非独立于艾芬豪矿业。Torr 先生已核实本新闻稿所披露的技术数据。
艾芬豪矿业对于西部前沿勘探项目的分析保持着全面的监管以及质量保证和质量控制 (QA/QC) 程序。锯成一半的岩芯在IME的现场实验室加工，制备的样品经由安全的快递方式送往位于澳大利亚的 ISO17025 认证设施 Bureau Veritas Minerals (以下简称“BVM”) 实验室。铜分析由 BVM 采用混合酸消解方法后，再运用初始循环压力完成。行业标准认证的参考物质和空白分析信息已于送往 BVM 前加入样品流。
本新闻稿所载的许多结果均以便携式XRF (pXRF) 读数 (niton值)为基础。样品在项目现场实验室粉碎后压成颗粒，在受制环境下使用pXRF仪器进行分析。矿浆在送往BVM之前，艾芬豪矿业经常使用pXRF仪器进行测试。两种技术之间的相关性表明，pXRF值是相当准确的。然而，本新闻稿所载的数值仅作参考用途，不应当作商业实验室报告的相同程度确定性。
艾芬豪矿业是一家加拿大的矿业公司，目前正推进旗下位于南部非洲的三大合资企业项目﹕位于刚果(金)的卡莫阿-卡库拉铜矿和位于南非的普拉特瑞夫 (Platreef) 钯-铂-镍-铜-铑-金矿的大型机械化地下矿山开发工程，以及同样位于刚果(金)、久负盛名的基普什 (Kipushi) 锌-铜-锗-银矿的大型重建和改善工程。
投资者﹕Bill Trenaman +1.604.331.9834 / 媒体﹕Matthew Keevil +1.604.558.1034
本新闻稿载有的某些陈述可能构成适用证券法所订议的“前瞻性陈述”或“前瞻性信息”，包括但不限于﹕(i) 关于西部前沿勘探许可区的2021年勘探计划，包括计划涵盖合共40,000米的空心钻探和金刚石钻探工程，航空和地表地球物理勘测，土壤采样和道路建设的陈述；以及(ii) 关于实地作业将于2021年旱季开始时展开，通常在4月开始的陈述。