Lahontan Reports CN-Soluble Gold up to 91.5% at Calvada, 91.0% at York and 86.7% at Slab; Preg Robbing Potential Very Low
Lahontan Reports CN-Soluble Gold up to 91.5% at Calvada, 91.0% at York and 86.7% at Slab; Preg Robbing Potential Very Low
TORONTO, ON / ACCESSWIRE / September 5, 2024 / Lahontan Gold Corp (TSXV:LG)(OTCQB:LGCXF) (the "Company" or "Lahontan") is pleased to announce results from metallurgical test work spread across all four deposits at the Company's 26-km2 Santa Fe Mine project located in Nevada's prolific Walker Lane gold and silver belt. A total of 205 pulp samples from previous Lahontan drilling representing five of the principal mineralization types present throughout the Santa Fe Mine project area, were subjected to cyanide ("CN") shake analysis to determine the amount of CN-soluble gold in the samples and pregnant solution robbing ("preg-robbing") analysis to identify/eliminate any potential problem areas for preg-robbing in the four deposits. The test work was completed by Kappes, Cassiday and Associates ("KCA") of Reno, Nevada, a global leader in metallurgical and process consulting. Highlights of the test work are described below and in the subsequent table:
安大略省多伦多/ACCESSWIRE/2024年9月5日/拉洪坦黄金公司(TSXV: LG)(OTCQB: LGCXF)(“公司” 或 “Lahontan”)欣然宣布该公司位于内华达州多产的沃克巷金银带的26平方公里圣达菲矿项目的所有四个矿床的冶金测试工作结果。对来自先前Lahontan钻探的205份纸浆样本进行了氰化物(“CN”)振动分析以确定样品中氯化物可溶性金的含量,并对孕溶液掠夺(“预抢劫”)进行了分析,以确定/消除四个矿床中任何潜在的预掠问题区域。测试工作由内华达州里诺市的Kappes、Cassiday and Associates(“KCA”)完成,该公司是冶金和工艺咨询领域的全球领导者。测试工作的重点如下表和下表所述:
Calvada Deposit: The CN-soluble gold analyses show a potential upside in gold recovery compared to previously reported metallurgical results with 91.5% of the fire-assayed gold to be CN-soluble compared to the currently estimated gold recoveries of 71% (please see Lahontan press release dated January 22, 2024). Additional metallurgical test work including bottle-roll and column leach tests are planned to follow up on the potential shown by CN-solubility analyses.
York Deposit: York samples also demonstrated a potential upside in gold recovery, with up to 91.0% of the fire-assayed gold to be CN-soluble and averaging 78.4% compared to the currently estimated gold recoveries of 60% (please see Lahontan press release dated January 22, 2024).
Slab Deposit: CN-soluble gold analysis for Slab were elevated compared to previous test work, averaging 69.0% of fire-assayed gold compared to the currently estimated 50% gold recovery (please see Lahontan press release dated January 22, 2024). Additional testing is planned to further optimize recoveries.
Santa Fe Deposit: Sampling concentrated on two mineralization types and CN-soluble gold contents were moderate compared to previous test work. Additional test work, including mineralogical analysis, are planned for these two mineralization types.
卡尔瓦达矿床:氯化萘可溶性金分析显示,与先前报告的冶金结果相比,金的回收率有潜在的上升空间,火法测定的黄金中有91.5%是氯化萘溶性的,而目前估计的黄金回收率为71%(请参阅2024年1月22日的Lahontan新闻稿)。计划进行其他冶金测试工作,包括瓶辊和柱浸试验,以跟踪CN-溶解度分析显示的潜力。
约克矿床:约克样本还显示,黄金回收率有潜在的上升空间,经火检验的黄金中有高达91.0%可溶于氯化氢,平均为78.4%,而目前估计的黄金回收率为60%(请参阅2024年1月22日的Lahontan新闻稿)。
板坯矿床:与之前的测试工作相比,板坯的氯化萘可溶性金分析有所提高,平均为火法测定金的69.0%,而目前估计的金回收率为50%(请参阅2024年1月22日的Lahontan新闻稿)。计划进行更多测试以进一步优化回收率。
圣达菲矿床:采样集中在两种矿化类型上,与先前的测试工作相比,氯化萘可溶性金含量适中。计划对这两种矿化类型进行额外的测试工作,包括矿物学分析。
Preg Robbing Potential: Only three of 205 samples analyzed exhibited aggressive preg robbing potential (Santa Fe deposit), with one showing moderate preg-robbing (Slab deposit, although this sample maintained high cyanide solubility of fire-assayed gold, which makes the preg-robbing result questionable). Preg-robbing is determined by comparing the results of a standard cyanide shake test with that obtained by spiking the leach solution with a known amount of soluble gold providing a semi-quantitative assessment of preg-robbing, typically referred to as the preg-robbing index (PRI) or preg-robbing percentage.
Preg 抢劫潜力:在分析的205个样本中,只有三个样本表现出激烈的掠夺潜力(圣达菲矿床),其中一个显示出中等的预掠性(板坯沉积物,尽管该样品在火检金中保持了较高的氰化物溶解度,这使得预洗结果值得怀疑)。预洗是通过将标准氰化物抖动测试的结果与在浸出溶液中加入已知量的可溶性金来获得的结果进行比较来确定的,该结果可以提供预洗的半定量评估,通常称为预洗指数(PRI)或预洗百分比。
Kimberly Ann, Lahontan Founder, CEO, President, and Director commented: "The Company is excited to receive these results from KCA which continue to confirm the high potential recoveries from oxide gold mineralization at the Santa Fe Mine Project. The absence of any significant preg-robbing potential across multiple mineralization types bodes well for future mine operations. We will continue met testing based on recommendations from KCA to further optimize the processing flow sheet which will be utilized in our upcoming Preliminary Economic Assessment that will analyze the economic upside of resuming precious metal production at Santa Fe."
Lahontan创始人、首席执行官、总裁兼董事金伯利·安表示:“公司很高兴收到KCA的这些结果,这些结果继续证实了圣达菲矿项目氧化金矿化的高回收潜力。在多种矿化类型中没有任何显著的预抢潜力,这对于未来的采矿作业来说是个好兆头。我们将继续根据KCA的建议进行测试,以进一步优化加工流程,该流程表将在我们即将发布的初步经济评估中使用,该评估将分析圣达菲恢复贵金属生产的经济上行空间。”
A summary table of results of CN-soluble gold analysis from 205 pulp samples taken from all four deposits at the Santa Fe Mine Project is shown above. The samples were selected based upon the desire for additional data for mineralization types that were underrepresented in previous metallurgical test work. CN soluble gold percentage ("%") is the percent of fire-assayed gold that is soluble with CN.
上面显示了从圣达菲矿项目所有四个矿床中采集的205份纸浆样本中提取的氯化萘可溶性金分析结果汇总表。选择样品的依据是希望获得更多矿化类型的数据,而这些矿化类型在先前的冶金测试工作中没有得到充分体现。氯化萘可溶性金百分比(“%”)是经火检验的金中可溶于氯化萘的百分比。
About Lahontan Gold Corp.
关于拉洪坦黄金公司
Lahontan Gold Corp. is a Canadian mine development and mineral exploration company that holds, through its US subsidiaries, four top-tier gold and silver exploration properties in the Walker Lane of mining friendly Nevada. Lahontan's flagship property, the 26.4-km2 Santa Fe Mine project, had past production of 356,000 ounces of gold and 784,000 ounces of silver between 1988 and 1995 from open pit mines utilizing heap-leach processing (Nevada Division of Minerals, ). The Santa Fe Mine has a Canadian National Instrument 43-101 compliant Indicated Mineral Resource of 1,112,000 oz Au Eq(grading 1.14 g/t Au Eq) and an Inferred Mineral Resource of 545,000 oz Au Eq (grading 1.00 g/t Au Eq), all pit constrained (Au Eq is inclusive of recovery, please see Santa Fe Project Technical Report*). The Company will continue to aggressively explore Santa Fe during 2024 and complete a Preliminary Economic Assessment evaluating development scenarios to bring the Santa Fe Mine back into production. The technical content of this news release and the Company's technical disclosure has been reviewed and approved by Kenji Umeno, P.Eng., of Kappes, Cassiday and Associates, who is a Qualified Person as defined in National Instrument 43-101 -- Standards of Disclosure for Mineral Projects. For more information, please visit our website:
Lahontan Gold Corp. 是一家加拿大矿山开发和矿产勘探公司,通过其美国子公司在矿业友好型内华达州的沃克巷拥有四处顶级金银勘探物业。拉洪坦的旗舰地产,占地26.4平方公里的圣达菲矿项目,在1988年至1995年期间,利用堆浸处理的露天矿山生产了35.6万盎司黄金和78.4万盎司白银(内华达州矿产部,)。圣达菲矿拥有符合加拿大国家仪器43-101标准的指示矿产资源为1,112,000盎司金当量(品位为1.14克/吨金当量),推断矿产资源为545,000盎司金当量(品位为1.00克/吨金当量),均受矿坑限制(金当量包含回收量,请参阅圣达菲项目技术报告*)。该公司将在2024年继续积极勘探圣达菲,并完成初步经济评估,评估开发情景,使圣达菲矿恢复生产。本新闻稿的技术内容和公司的技术披露已经过Kappes、Cassiday and Associates的工程师Kenji Umeno的审查和批准,他是《国家仪器43-101——矿业项目披露标准》中定义的合格人员。欲了解更多信息,请访问我们的网站:
* Please see the Santa Fe Project Technical Report, Authors: Trevor Rabb and Darcy Baker, P. Geos. Effective Date: December 7, 2022, Report Date: March 2, 2023. The Technical Report is available on the Company's website and SEDAR.
* 请参阅圣达菲项目技术报告,作者:Trevor Rabb 和 Darcy Baker,P. Geos。生效日期:2022年12月7日,报告日期:2023年3月2日。技术报告可在公司网站和SEDAR上查阅。
On behalf of the Board of Directors
代表董事会
Kimberly Ann
金伯利安
Founder, CEO, President, and Director
创始人、首席执行官、总裁兼董事
FOR FURTHER INFORMATION, PLEASE CONTACT:
欲了解更多信息,请联系:
Lahontan Gold Corp.
拉洪坦黄金公司
Kimberly Ann
Founder, Chief Executive Officer, President, Director
Phone: 1-530-414-4400
金伯利安
创始人、首席执行官、总裁、董事
电话:1-530-414-4400
Email:
Kimberly.ann@lahontangoldcorp.com
电子邮件:
Kimberly.ann@lahontangoldcorp.com
Cautionary Note Regarding Forward-Looking Statements:
关于前瞻性陈述的警示说明:
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. Except for statements of historical fact, this news release contains certain "forward-looking information" within the meaning of applicable securities law. Forward-looking information is frequently characterized by words such as "plan", "expect", "project", "intend", "believe", "anticipate", "estimate" and other similar words, or statements that certain events or conditions "may" or "will" occur. Forward-looking statements are based on the opinions and estimates at the date the statements are made and are subject to a variety of risks and uncertainties and other factors that could cause actual events or results to differ materially from those anticipated in the forward-looking statements including, but not limited to delays or uncertainties with regulatory approvals, including that of the TSXV. There are uncertainties inherent in forward-looking information, including factors beyond the Company's control. The Company undertakes no obligation to update forward-looking information if circumstances or management's estimates or opinions should change except as required by law. The reader is cautioned not to place undue reliance on forward-looking statements. Additional information identifying risks and uncertainties that could affect financial results is contained in the Company's filings with Canadian securities regulators, which filings are available at
多伦多证券交易所风险交易所及其监管服务提供商(该术语在多伦多证券交易所风险交易所的政策中定义)均不对本新闻稿的充分性或准确性承担责任。除历史事实陈述外,本新闻稿包含适用证券法所指的某些 “前瞻性信息”。前瞻性信息通常以 “计划”、“期望”、“项目”、“打算”、“相信”、“预测”、“估计” 等词语为特征,或某些事件或条件 “可能” 或 “将” 发生的陈述。前瞻性陈述基于陈述发表之日的观点和估计,受各种风险和不确定性以及其他因素的影响,这些因素可能导致实际事件或结果与前瞻性陈述中的预期存在重大差异,包括但不限于监管机构批准(包括多伦多证券交易所的批准)的延迟或不确定性。前瞻性信息固有的不确定性,包括公司无法控制的因素。除非法律要求,否则如果情况或管理层的估计或意见发生变化,公司没有义务更新前瞻性信息。提醒读者不要过分依赖前瞻性陈述。确定可能影响财务业绩的风险和不确定性的其他信息包含在公司向加拿大证券监管机构提交的文件中,这些文件可在以下网址查阅
SOURCE: Lahontan Gold Corp
来源:拉洪坦黄金公司