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Almaden Minerals conducts IP geophysical program at Ixtaca
VANCOUVER, British Columbia, April 15, 2021 (GLOBE NEWSWIRE) -- Almaden Minerals Ltd. (“Almaden” or “the Company”; TSX: AMM; NYSE American: AAU) is pleased to a
About this update from Almaden Minerals Ltd.
[{"type":"text","content":" VANCOUVER, British Columbia, April 15, 2021 (GLOBE NEWSWIRE) -- Almaden Minerals Ltd. (“Almaden” or “the Company”; TSX: AMM; NYSE American: AAU) is pleased to announce that it is conducting a surface induced polarisation geophysical (IP) program at the Ixtaca deposit, Mexico. The work is designed to help define drill targets beneath the area of hydrothermal alteration called the Southeast Alteration (SE) zone and at depth beneath the Ixtaca deposit (“Ixtaca Deeps”). It is hoped that this geophysical survey, along with past survey results, will identify potential zones of veining like those in the Ixtaca deposit. The discovery drill hole in the original Ixtaca deposit area was planned in part based on high resistivity and chargeability results obtained in an earlier IP geophysical survey. The Company looks forward to updating shareholders once the results have been processed and interpreted and drilling plans are defined. Background to the SE Alteration Zone The SE Alteration Zone comprises white argillic (clay-altered) volcanics and, most interestingly, clusters of anomalies identified from a hyperspectral survey that include the spectral signatures of important epithermal alteration minerals such as kaolinite, alunite and buddingtonite. The SE Alteration Zone lies well outside of the current Ixtaca deposit resource area (see Figure 1, Ixtaca Alteration Map). In November, 2020, the Company announced the discovery of several areas of veining cropping out within the SE Alteration Zone, and seventeen samples of the veining were collected and submitted for analysis to ALS Global in Zacatecas, Mexico. All but one sample returned below detection gold and silver, with the exception returning a value of 62 ppb gold. However, even though the outcrops are leached and weathered, many of the samples also returned elevated values for epithermal pathfinder elements which are commonly found in the higher parts of epithermal alteration zones. The presence of pathfinder elements in these samples is very encouraging as it corroborates the Company view that the SE Alteration Zone could represent the higher levels of a potential underlying epithermal system. It is quite typical that the higher parts of these systems contain negligible precious metals values. Background to the Ixtaca Deeps Target The Main Ixtaca Zone of the Ixtaca deposit is hosted...