Overview of Exploration Work Programs Completed in 2021
Drill Program - Complete
Aldebaran commenced its 2021 drill program on February 2, 2021. The drill program focused on testing several of the higher priority targets from the group of new targets generated as part of the extensive data collection and data modeling exercise recently completed (see Dec 3, 2020 and Jan 19, 2021 press releases). The objectives of the 2021 drill program are to: (a) test extensions to zones of higher-grade mineralization, and (b) test areas within specific structural blocks identified during the relogging and geological modeling process as having a high potential to extend the footprint of the known mineralization.
Aldebaran Intercepts 111 m of 1.4% CuEq Within 333.1 m of 0.86% CuEq, And Also Within 629 m of 0.61% CuEq in Hole QDM-21-42 at Altar See News July 13, 2021
Aldebaran Intercepts 63 m of 0.94% CuEq and 584 m of 0.52% CuEq in Hole ALD-21-217 at the Altar Project See News June 15, 2021
The previous 43-101 resource statement for Altar, completed by the previous operator, showed a very large, low-grade mineral resource with elevated arsenic content. This is in part due to no geology being used, the low cut-off grade chosen, and the emphasis on “make it big” at the expense of grade. Aldebaran’s approach is very different and focuses on having a robust and consistent geological/structural model in conjunction with grade shells at different cut-offs for all the key economic and deleterious elements in order to highlight the potentially more economically attractive higher-grade zones and minimize the impact of the deleterious elements.
Aldebaran worked with IMC out of Tucson Arizona on a re-evaluation and update of the Altar project resource using our newly developed geological/structural model, grade shells and incorporation of eight additional new drill holes completed during 2018 and 2019. The objective was to highlight the size and geometry of (a) the known higher-grade primary copper-gold zones at QDM/Radio, Altar Central and Altar East, and (b) the size and geometry of the supergene copper zones. In addition, this work provides valuable information on where additional exploration drilling should be focussed to extend these higher-grade zones. An updated resource statement was released on March 22 2021.
Talus Fine Geochemistry
The first-ever systematic talus fine geochemical sampling program has now been completed over 100% of the main Altar area, with talus fine samples having been collected on a 100 x 100 m grid pattern covering most of the Altar property. Approximately 4,335 samples have been collected and analyzed for multi-element geochemistry. The purpose of this type of sampling is to identify areas not only with anomalous Cu, Au, and Ag geochemistry, but also areas with anomalous geochemistry in the trace elements typically associated with porphyry copper-gold systems. Processing and analysis of this data has been completed and used as one integrant for the generation of drill hole targets.
Geophysics – 3D Induced Polarization (IP) and Magneto-Telluric (MT) Survey
Phases I and II of a 3D Induced Polarization (IP) and Magneto-Telluric (MT) survey was completed during the 2020-2021 field season. The survey covered an area approximately 5 x 3 km over the QDM/Radio and Altar Central mineralized areas and their immediate surrounds. Due to weather conditions at the end of the 2020-2021 field season, the survey had to be terminated before the entire 26.5 km2 area (7.8 x 3.4 km) could be completed (Phases III, IV, V, and VI). The objective of the survey is to provide additional characterization of the known mineralization and identify possible extensions and/or new areas for drill testing. Most mineralized porphyry systems have clear responses to both IP and MT, with IP helping to map out sulphide distributions and MT helping to identify areas of favourable alteration such as potassic alteration and silicification, both typically associated with copper mineralization in these types of systems.
An extensive amount of metallurgical test work has been completed for the Altar project over the last several years and Aldebaran will be re-evaluating the results of this data, taking into consideration the new geological/structural model and the numerous other new data sets to determine if additional, more focussed metallurgical test work is required.
Qualified Person The scientific and technical data contained on this page has been reviewed and approved by Dr. Kevin B. Heather, B.Sc. (Hons), M.Sc, Ph.D, FAusIMM, Chief Geological Officer (CGO) and director of Aldebaran, who serves as the qualified person (QP) under the definitions of National Instrument 43-101.
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