BATTERY MINERAL RESOURCES CORP. Highlights
Partial assay results from drillholes SAS-21-11, 12, 13, 19, and 21 (see Table 1) have been returned with encouraging results as follows:
Drillhole SAS-21-12: 7 meters ('m') at 1.81% Copper ('Cu') from 176m downhole and a second intercept of 2m grading 1.04% Cu from 162m downhole.
Drillhole SAS-21-13: 3m at 1.96% Cu from 217m downhole, 3m grading 0.87% Cu from 199m and a third interval of 1.8m at 0.83% Cu from 211m downhole.
Drillhole SAS-21-21: 13m at 0.96% Cu from 106m downhole and 4m grading 1.19% Cu from 115m downhole.
Drillhole SAS-21-19: 3m at 1.50% Cu from 75m downhole.
Drillhole SAS-21-11: 2m at 0.91% Cu from 53m downhole.
Currently, four drills are operating on-site with two at San Andres.
Sample results have been received for 17 drill holes. Samples for an additional five drill holes have been submitted to ALS for geochemical analysis and more are being prepared for shipment.
The San Andres drill program is designed to confirm resources identified by previous drilling programs and expand these resources north and south along strike and at depth.
Earlier results from the current program (see Table 2) included: o SAS-21-07: 3.4m at 2.10% Cu and a second interval of 4m at 1.56% Cu. o SAS-21-05: 9m at 2.06% Cu. o SAS-21-03: 11m at 1.39% Cu including 8m at 1.63% Cu. o SAS-21-08: 5.25m at 1.39% Cu and a second interval of 3.75m at 1.85% Cu.
SAS-21-01: 3m grading 1.52% Cu.
SAS-21-04: 16.7m grading 1.37% Cu including 11.7m at 1.64% Cu and a second interval of 9m at 1.75% Cu.
The San Andres target is one of several historic zones within BMR's Punitaqui project with partially delineated resources and established underground access.
San Andres is the 'normal' fault displaced upper portion of the adjacent Cinabrio copper deposit that is part of Punitaqui which produced between 20 and 25 million pounds of copper annually for nine plus years by Glencore and
Battery CEO
San Andres Drill Program
Sample assay results, reported herein, are from five drill holes and are in addition to the results reported previously from the first eight drillholes completed at San Andres (see Tables 1 and 2 below). These results are only partial assays and additional significant intervals may be reported from these same holes when complete results are received.
Drillhole SAS-21-11 was designed to test the San Andres targeted stratigraphic unit ('TSU') at shallow depths just below the oxide-sulphide transition in the northern part of the San Andres target. The drill hole intersected 3m of the TSU that hosted the disseminated pyrite-chalcopyrite mineralization and the interval from 53m to 55m yielded a 2m interval grading 0.91% copper Cu.
Drillhole SASA-21-12 targeted the TSU 60m down-dip from drillhole SAS-21-01 which encountered a significant amount of post mineralized dykes at the target depth but intersected 3.0m at 1.52% Cu. This follow-up drillhole intersected a 34m wide section of the mineralized horizon consisting of interbedded shales, sandstones and tuff breccia. Two sulphide intercepts were reported between 162m and 183m downhole. The upper intercept was 2m grading 1.04% Cu from 162m and a lower second wider interval cut 7m at 1.81% Cu from 176m. This successful down-dip step-out outside the dykes confirms both lateral continuity and grade of the mineralization.
Drillhole SAS-21-13 was planned to test the TSU 60m up-dip from the SAS-21-09. The drillhole intersected a 21m interval from 199m to 220m of the TSU consisting of dark shales, volcanoclastic sandstones and conglomerates with abundant syngenetic pyrite and chalcopyrite. Three significant mineralized intervals were reported within the TSU and included 3m of 0.87% Cu from 199m; 1.m at 0.83% Cu from 211m and 3m grading 1.96% Cu from 217m.
Drillhole SAS-21-19 was designed as a step-out exploration hole from SAS-21-11 to test the TSU 60m south and down-dip. The drillhole intersected a 26m section of the targeted stratigraphic unit with weak disseminated chalcopyrite mineralization throughout. A 3m mineralized interval returned 1.50% Cu from 75m downhole.
Drillhole SAS-21-21: tested the targeted stratigraphic unit up-dip of historic drillholes SAS-19-09 and SAS-20-01. The TSU was intercepted from 221.7m - 236.7m of shale-sandstone with variable chalcopyrite and bornite as disseminated sulphides and copper bearing veinlets. The mineralized horizon produced a significant result of 13m at 0.96% Cu from 106m including 4m at 1.19% Cu from 115m.
Background - San Andres Target
The San Andres target is part of the Punitaqui project which is situated within a 25km long mineralized district that is a classic IOCG and mantos-style copper belt that is comprised of mantos and structural controlled copper-gold-silver veins. San Andres is a zone of copper mineralization located 500m southwest of the high-grade Cinabrio deposit mined by Glencore and
Prior to 1998, only limited extraction of high-grade copper oxides was undertaken at San Andres by small groups of local miners. In 2000, a Chilean national company La Empressa Nacional de Mineria ('ENAMI') developed two underground exploration drives targeting copper sulphides. In 2005, via an option process, San Andres became part of the Punitaqui mine complex.
In 2007, a ground geophysical induced polarization ('IP') survey was completed on 250m - 500m spaced lines across the San Andres-Cinabrio area. The results of the IP survey line across the southern end of the San Andres zone identified a strong chargeability anomaly interpreted to represent potential extensions of the copper sulphide mineralization at depth and along strike. Historic wide-spaced drilling completed by the previous operators between 2011- 2017 totaled 58 holes for 5,927m.
San Andres is a tabular sedimentary horizon within a volcanic sequence. This sedimentary horizon is variably mineralized and has a variable width ranging from 5m - 30m. It consists of an interlayered volcano-sedimentary sequence composed of dark colored laminated and unlaminated shales, volcanoclastic sandstone, conglomerates and breccias and tuff breccias. There is a variable component of syngenetic pyrite. The horizon dips 40 to 50 degrees to the east and is cut-off at depth by the moderately west dipping San Andres fault.
Mineralization consists of veinlets and irregular disseminations in both the fine and coarse-grained clastic rocks and locally within the volcanic rocks above and below the host unit. The host horizon is also cut and offset by other faults with a wide range of orientations. The fundamental orientations identified to date include:
moderately west dipping splays of the San Andres fault, generally with downward and westward movement
steep dipping northeast to northwest trending faults with both sinistral and dextral offsets
Faults parallel and sub-parallel to stratigraphy
Quality Control
Sample preparation, analysis and security procedures applied on the BMR exploration projects is aligned with industry best practice. BMR has implemented protocols and procedures to ensure high quality collection and management of samples resulting in reliable exploration assay data. BMR has implemented formal analytical quality control monitoring for all field sampling and drilling programs by inserting blanks and certified reference materials into every sample sequence dispatched.
Sample preparation is performed ALS Global -
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