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:
安大略省多倫多/ACCESSWIRE/2024年9月5日/拉洪坦黃金公司(TSXV: LG)(OTCQB: LGCXF)(「公司」 或 「Lahontan」)欣然宣佈該公司位於內華達州多產的沃克巷金銀帶的26平方公里聖達菲礦項目的所有四個礦牀的冶金測試工作結果。對來自先前Lahontan鑽探的205份紙漿樣本進行了氰化物(「CN」)振動分析以確定樣品中氯化物可溶性金的含量,並對孕溶液掠奪(「預搶劫」)進行了分析,以確定/消除四個礦牀中任何潛在的預掠問題區域。測試工作由內華達州里諾市的Kappes、Cassiday and Associates(「KCA」)完成,該公司是冶金和工藝諮詢領域的全球領導者。測試工作的重點如下表和下表所述:
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.
卡爾瓦達礦牀:氯化萘可溶性金分析顯示,與先前報告的冶金結果相比,金的回收率有潛在的上升空間,火法測定的黃金中有91.5%是氯化萘溶性的,而目前估計的黃金回收率爲71%(請參閱2024年1月22日的Lahontan新聞稿)。計劃進行其他冶金測試工作,包括瓶輥和柱浸試驗,以跟蹤CN-溶解度分析顯示的潛力。
約克礦牀:約克樣本還顯示,黃金回收率有潛在的上升空間,經火檢驗的黃金中有高達91.0%可溶於氯化氫,平均爲78.4%,而目前估計的黃金回收率爲60%(請參閱2024年1月22日的Lahontan新聞稿)。
板坯礦牀:與之前的測試工作相比,板坯的氯化萘可溶性金分析有所提高,平均爲火法測定金的69.0%,而目前估計的金回收率爲50%(請參閱2024年1月22日的Lahontan新聞稿)。計劃進行更多測試以進一步優化回收率。
聖達菲礦牀:採樣集中在兩種礦化類型上,與先前的測試工作相比,氯化萘可溶性金含量適中。計劃對這兩種礦化類型進行額外的測試工作,包括礦物學分析。
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 搶劫潛力:在分析的205個樣本中,只有三個樣本表現出激烈的掠奪潛力(聖達菲礦牀),其中一個顯示出中等的預掠性(板坯沉積物,儘管該樣品在火檢金中保持了較高的氰化物溶解度,這使得預洗結果值得懷疑)。預洗是通過將標準氰化物抖動測試的結果與在浸出溶液中加入已知量的可溶性金來獲得的結果進行比較來確定的,該結果可以提供預洗的半定量評估,通常稱爲預洗指數(PRI)或預洗百分比。
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創始人、首席執行官、總裁兼董事金伯利·安表示:「公司很高興收到KCA的這些結果,這些結果繼續證實了聖達菲礦項目氧化金礦化的高回收潛力。在多種礦化類型中沒有任何顯著的預搶潛力,這對於未來的採礦作業來說是個好兆頭。我們將繼續根據KCA的建議進行測試,以進一步優化加工流程,該流程表將在我們即將發佈的初步經濟評估中使用,該評估將分析聖達菲恢復貴金屬生產的經濟上行空間。」
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.
上面顯示了從聖達菲礦項目所有四個礦牀中採集的205份紙漿樣本中提取的氯化萘可溶性金分析結果彙總表。選擇樣品的依據是希望獲得更多礦化類型的數據,而這些礦化類型在先前的冶金測試工作中沒有得到充分體現。氯化萘可溶性金百分比(「%」)是經火檢驗的金中可溶於氯化萘的百分比。
About Lahontan Gold Corp.
關於拉洪坦黃金公司
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. 是一家加拿大礦山開發和礦產勘探公司,通過其美國子公司在礦業友好型內華達州的沃克巷擁有四處頂級金銀勘探物業。拉洪坦的旗艦地產,佔地26.4平方公里的聖達菲礦項目,在1988年至1995年期間,利用堆浸處理的露天礦山生產了35.6萬盎司黃金和78.4萬盎司白銀(內華達州礦產部,)。聖達菲礦擁有符合加拿大國家儀器43-101標準的指示礦產資源爲1,112,000盎司金當量(品位爲1.14克/噸金當量),推斷礦產資源爲545,000盎司金當量(品位爲1.00克/噸金當量),均受礦坑限制(金當量包含回收量,請參閱聖達菲項目技術報告*)。該公司將在2024年繼續積極勘探聖達菲,並完成初步經濟評估,評估開發情景,使聖達菲礦恢復生產。本新聞稿的技術內容和公司的技術披露已經過Kappes、Cassiday and Associates的工程師Kenji Umeno的審查和批准,他是《國家儀器43-101——礦業項目披露標準》中定義的合格人員。欲了解更多信息,請訪問我們的網站:
* 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.
* 請參閱聖達菲項目技術報告,作者:Trevor Rabb 和 Darcy Baker,P. Geos。生效日期:2022年12月7日,報告日期:2023年3月2日。技術報告可在公司網站和SEDAR上查閱。
On behalf of the Board of Directors
代表董事會
Kimberly Ann
金伯利安
Founder, CEO, President, and Director
創始人、首席執行官、總裁兼董事
FOR FURTHER INFORMATION, PLEASE CONTACT:
欲了解更多信息,請聯繫:
Lahontan Gold Corp.
拉洪坦黃金公司
Kimberly Ann
Founder, Chief Executive Officer, President, Director
Phone: 1-530-414-4400
金伯利安
創始人、首席執行官、總裁、董事
電話:1-530-414-4400
Email:
Kimberly.ann@lahontangoldcorp.com
電子郵件:
Kimberly.ann@lahontangoldcorp.com
Cautionary Note Regarding Forward-Looking Statements:
關於前瞻性陳述的警示說明:
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
多倫多證券交易所風險交易所及其監管服務提供商(該術語在多倫多證券交易所風險交易所的政策中定義)均不對本新聞稿的充分性或準確性承擔責任。除歷史事實陳述外,本新聞稿包含適用證券法所指的某些 「前瞻性信息」。前瞻性信息通常以 「計劃」、「期望」、「項目」、「打算」、「相信」、「預測」、「估計」 等詞語爲特徵,或某些事件或條件 「可能」 或 「將」 發生的陳述。前瞻性陳述基於陳述發表之日的觀點和估計,受各種風險和不確定性以及其他因素的影響,這些因素可能導致實際事件或結果與前瞻性陳述中的預期存在重大差異,包括但不限於監管機構批准(包括多倫多證券交易所的批准)的延遲或不確定性。前瞻性信息固有的不確定性,包括公司無法控制的因素。除非法律要求,否則如果情況或管理層的估計或意見發生變化,公司沒有義務更新前瞻性信息。提醒讀者不要過分依賴前瞻性陳述。確定可能影響財務業績的風險和不確定性的其他信息包含在公司向加拿大證券監管機構提交的文件中,這些文件可在以下網址查閱
SOURCE: Lahontan Gold Corp
來源:拉洪坦黃金公司
譯文內容由第三人軟體翻譯。