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African Mining Market · 矿业新闻· Staff Writer·· 5 h agoAI score30.0

Leviathan Metals 公布博茨瓦纳 Central 项目首批钻探分析结果

Central Project, Kalahari Copper Belt drill program yields initial assay results

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Leviathan Metals Corp. 公布其全资拥有的博茨瓦纳卡拉哈里铜矿带(KCB)Central 项目金刚石钻探首批分析结果,6 个钻孔见矿,其中 CEN_DD_017 孔自 142.9 米见 1.29 米 @ 0.47% Cu 和 11.9 g/t Ag。公司称这些结果反映出一个更大成矿系统的边缘,矿化赋存于长度超过 4 公里的地质包络内。Central 项目目前已完成 26 个钻孔、略超 7000 米钻探,更多结果将在收到后公布。

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Leviathan Metals Corp. reported the receipt of initial assay results from its diamond drilling program at the Company’s 100%-owned Central Project, Kalahari Copper Belt (KCB), Botswana.

Results were received for targeted horizons within 6 holes, and include 2.3m @ 0.15% Cu from 228m in hole CEN_DD_0031, 1.0m @ 0.1% Cu and 5 g/t Ag from 162m in hole CEN_DD_009, 1.06m @ 0.2% Cu and 10.91 g/t Ag from 116.8m in hole CEN_DD_016, and 1.29m @ 0.47% Cu and 11.9 g/t Ag from 142.9m in hole CEN_DD_017.

These results, when taken in the context of their host lithology and structure, are considered to represent the margins of a broader mineralizing system within Central. At known deposits elsewhere on the KCB, “peak” intersections in excess of 0.1% Cu per drill hole each occur within the mineralized envelopes of their respective deposits2. Lead and zinc are also known to associate with KCB-style mineralization in a proximal manner, and as such the anomalous manifestations of these two metals in the reported intervals are considered a favourable zoning indicator.

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At Central, the reported results fall within a geological envelope measuring in excess of 4 kilometers in length. This envelope is concordant with interbedded siltstones and sandstones close to the so called D’Kar-Ngwako Pan Formation (“DKF-NPF”) contact – target KCB stratigraphy – in combination with folding, shearing, brecciation and faulting each of styles typical of other KCB deposits that together appear to serve to “concentrate” mineralizing fluids.

All but two drill holes from the Central program to date display visual copper sulphide mineralization, all yield pXRF copper readings, almost every hole has encountered the DKF-NPF contact, and the domal structure previously inferred to exist on the basis of geophysical data prior to drilling is robustly reflected in Leviathan’s drilling data.

Leviathan Chief Operations Officer, Jeremy Crozier, remarked: “Initial results from shallow drilling at Central appear consistent with the margins of a broader mineralizing system. Practically every hole displays evidence of mineralization, and our geological work shows a clear relationship between copper mineralization and progressively increasing shearing, brecciation and faulting (which serve to “prepare” the rocks for fluid passage), as well as lead and zinc “halo” mineralization, providing us with strong vectors for continuing drilling. More simply put, there are more indicators present than simply copper itself, and together these demonstrate the presence of a mineralizing system.

“Beyond these vectored targets, significant areas of Central remain very thinly tested”.

A number of so-called “vectors” – or directional targeting factors – are being developed from Leviathan’s drilling dataset and are being used to guide ongoing drilling and are shown in composite form in Figure 2. At the time of writing, slightly over 7,000 meters of drilling have been completed at Central across twenty-six holes. Further results will be reported once in hand. Significant portions of the interpreted DKF-NPF contact at the Project have only been tested at a very broad drill pattern, and in places at a spacing of up to two kilometers.

Delays due to the analytical performance of certified reference materials inserted into the sample flow for QAQC purposes have slowed Leviathan’s ability to report results. The Company is actively addressing this matter and expects to report further results shortly.

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