"The near-surface high-grade Cu-Au mineralization intercepted by hole 12 represents a new mineralization style that will be followed up to understand its actual geometry, size, and relationship with the overall porphyry system at the La Gringa target. We are expanding the search towards the west with promising geological and geochemical observations," stated Dr
Below are highlights of the reported drill holes with location data and highlighted intervals included in Tables 1 and 2 below.
- 2.21% CuEq (1.61% Cu; 19.1 g/t Ag; 0.38 g/t Au; 0.4% Zn) over 11.1m from 53.0 to 64.1m
Including - 8.42% CuEq (6.52% Cu; 84 g/t Ag; 0.99 g/t Au; 1.21% Zn) over 0.7m from 55.0 to 55.7m
- 5.96% CuEq (3.76% Cu; 25.4 g/t Ag; 2.39 g/t Au; 0.64% Zn) over 0.55m from 60.0 to 60.55m
- 8.80% CuEq (6.75% Cu; 82.1 g/t Ag; 0.95 g/t Au; 1.74% Zn) over 0.5m from 63.6 to 64.1m
- 1.3% CuEq (0.54% Cu; 6.81 g/t Ag; 0.95 g/t Au) over 13.7m from 149.0 to 162.7m
Including - 11.11% CuEq (4.64% Cu; 56.6 g/t Ag; 8.09 g/t Au; 0.22% Zn) over 1.1m from 160.5 to 161.6m
- 7.81% CuEq (3.52% Cu; 43.8 g/t Ag; 5.24 g/t Au; 0.24% Zn) over 0.5m from 162.2 to 162.7m
- 3.58% CuEq (0.82% Cu; 7.95 g/t Ag; 3.69 g/t Au) over 2.0m from 202.0 to 204.0m
- 10.58% CuEq (4.85% Cu; 50.4 g/t Ag; 7.19 g/t Au; 0.15% Zn) over 1.0m from 221.5 to 222.5m
- 0.21% CuEq (2.12 g/t Ag; 0.13 g/t Au; 0.09% Cu) over 12.1m from 205.5 to 217.6m
- 1.1% CuEq (4.09 g/t Ag; 0.27 g/t Au; 0.87% Cu) over 1.0m from 227.0 to 228.0m
- 1.57% CuEq (17.2 g/t Ag; 0.7 g/t Au; 0.91% Cu) over 2.0m from 330.0 to 332.0m
- 0.31% CuEq (0.18 g/t Au; 0.18% Cu) over 20.0m from 380.0 to 400.0m
Including - 1.36% CuEq (1.76 g/t Ag; 0.82 g/t Au; 0.75% Cu) over 2.0m from 392.0 to 394.0m
- 0.62% CuEq (0.28 g/t Au; 0.41% Cu) over 2.0m from 396.0 to 398.0m
- 0.23% CuEq (1.23 g/t Ag; 0.083 g/t Au; 0.16% Cu) over 63.0m from 482.0 to 545.0m
Including - 0.75% CuEq (1.32 g/t Ag; 0.31 g/t Au; 0.51% Cu) over 2.0m from 510.0 to 512.0m
- 1.37% CuEq (9.82 g/t Ag; 0.22 g/t Au; 1.12% Cu) over 2.0m from 522.0 to 524.0m
- 1.45% CuEq (1.98 g/t Ag; 0.44 g/t Au; 1.11% Cu) over 2.0m from 543.0 to 545.0m
- 0.11% Cu over 12.0m from 375.0m to 387.0m
- 0.14% CuEq (0.091% Cu; 139 ppm Mo; 0.95 g/t Ag) over 305m from 528.0 to 833.0m
Including - 0.14% CuEq (0.097% Cu; 129 ppm Mo) over 59.0m from 528.0 to 587.0m
- 0.17% CuEq (0.11% Cu; 151 ppm Mo; 1.32 g/t Ag) over 45.8m from 636.2 to 682.0m
- 0.17% CuEq (0.11% Cu; 135 ppm Mo; 1.4 g/t Ag) over 16.0m from 758.0 to 774.0m
DJ-DH-22-12 (Hole 12) was drilled 800m west of DJ-DH-22-07, completed last season, targeting a large chargeability anomaly identified at the La Gringa target. Mineralization intercepted by hole 12 was completely covered by thin quaternary gravels (Figures 1 and 2) and consists of chalcopyrite, tennantite, enargite, and sphalerite, typical of deep levels of the high-sulfidation environment. The hole cut at least three zones of massive sulfides, breccias, and stockworks which geometry is not fully understood yet. Hole DJ-DH-23-14 was drilled in the opposite direction to hole 12 to understand the geometry of the mineralization with results still pending. The mineralization style resembles high-sulfidation deposits such as Čukaru
DJ-DH-22-10 (Hole 10) targeted a magnetic anomaly combined with low resistivity and geochemical anomalies from historical hole ATW-03 (Figures 1 and 3). The hole was dominated by advanced argillic alteration transitioning into sericite-illite with presence of A and B veinlets. Although the hole did not reach potassic alteration, it extended the porphyry environment at least 900m from hole DJ-DH-22-07 drilled last year. It intercepted a significant number of high-sulfidation structures with Au-Cu anomalies characterized by tennantite, enargite, and pyrite.
DJ-DH-22-11 (Hole 11) was planned to follow up on biotite alteration and early porphyry veining encountered in holes DJ-DH-22-07 and DJ-DH-22-09 from last season (Figures 1 and 4). The hole is located 580m west from DJ-DH-22-07. Hole 11 intercepted a similar alteration transition from advanced argillic (kaolinite-alunite-pyrophyllite), progressing into sericite-illite and then going into strong biotite alteration with abundant A and B type veinlets. The hole was showing a positive increase in molybdenite, chalcopyrite and veinlets, when it had to be abandoned due to technical problems at 833m.
Hole | Azimuth | Dip | Depth | Northing | Easting | Elevation |
DJ-DH-22-10 | 220 | 70 | 686 | 6626144 | 2432900 | 4462 |
DJ-DH-22-11 | 65 | 70 | 833 | 6627047 | 2431930 | 4330 |
DJ-DH-23-12 | 220 | 55 | 461 | 6627300 | 2431750 | 4300 |
Table 1. Location of reported holes |
Hole | From | To | Interval | Ag | Au | Cu | Mo | Zn | CuEq | AuEq |
DJ-DH-22-10 | 16.5 | 17.1 | 0.6 | 50.5 | 2.14 | 2.74 | ||||
DJ-DH-22-10 | 205.5 | 217.6 | 12.1 | 2.12 | 0.13 | 0.09 | 0.21 | |||
DJ-DH-22-10 | 227.0 | 228.0 | 1.0 | 4.09 | 0.27 | 0.87 | 1.1 | |||
DJ-DH-22-10 | 330.0 | 332.0 | 2.0 | 17.2 | 0.7 | 0.91 | 1.57 | |||
DJ-DH-22-10 | 380.0 | 400.0 | 20.0 | 0.18 | 0.18 | 0.31 | ||||
Including | 392.0 | 394.0 | 2.0 | 1.76 | 0.82 | 0.75 | 1.36 | |||
And | 396.0 | 398.0 | 2.0 | 0.28 | 0.41 | 0.62 | ||||
DJ-DH-22-10 | 482.0 | 545.0 | 63.0 | 1.23 | 0.083 | 0.16 | 0.23 | |||
Including | 510.0 | 512.0 | 2.0 | 1.32 | 0.31 | 0.51 | 0.75 | |||
And | 522.0 | 524.0 | 2.0 | 9.82 | 0.22 | 1.12 | 1.37 | |||
And | 543.0 | 545.0 | 2.0 | 1.98 | 0.44 | 1.11 | 1.45 | |||
DJ-DH-22-11 | 375.0 | 387.0 | 12.0 | 0.11 | ||||||
DJ-DH-22-11 | 528.0 | 833.0 | 305.0 | 0.95 | 0.091 | 139.0 | 0.14 | |||
Including | 528.0 | 587.0 | 59.0 | 0.097 | 129.0 | 0.14 | ||||
And | 636.2 | 682.0 | 45.8 | 1.32 | 0.11 | 151.0 | 0.17 | |||
And | 758.0 | 774.0 | 16.0 | 1.4 | 0.11 | 135.0 | 0.17 | |||
DJ-DH-22-12 | 53.0 | 64.1 | 11.1 | 19.1 | 0.38 | 1.61 | 0.4 | 2.21 | ||
Including | 55.0 | 55.7 | 0.7 | 84.0 | 0.99 | 6.52 | 1.21 | 8.42 | ||
And | 60.0 | 60.55 | 0.55 | 25.4 | 2.39 | 3.76 | 0.64 | 5.96 | ||
And | 63.6 | 64.1 | 0.5 | 82.1 | 0.95 | 6.75 | 1.74 | 8.80 | ||
DJ-DH-22-12 | 102.0 | 102.5 | 0.5 | 2.04 | 1.0 | 0.391 | 1.13 | |||
DJ-DH-22-12 | 149.0 | 162.7 | 13.7 | 6.81 | 0.95 | 0.54 | ||||
Including | 160.5 | 161.6 | 1.1 | 56.6 | 8.09 | 4.64 | 0.22 | 11.11 | ||
And | 162.2 | 162.7 | 0.5 | 43.8 | 5.24 | 3.52 | 0.24 | 7.81 | ||
DJ-DH-22-12 | 202.0 | 204.0 | 2.0 | 7.95 | 3.69 | 0.82 | 3.58 | |||
DJ-DH-22-12 | 221.5 | 222.5 | 1.0 | 50.4 | 7.19 | 4.85 | 0.15 | 10.58 |
Table 2. Highlighted intervals from reported holes |
Porphyry mineralization is characterized by broad zones of disseminated sulfides and vein stockwork; high-grade Cu-Au mineralization intercepted in hole 12 consists of irregular zones of semi-massive sulfides, sulfide-rich breccias, and stockworks; therefore, true width cannot be determined at this time. CuEq and AuEq were calculated based on 100% recovery and prices of
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