Amalia Project for Adam's Preview
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Amalia Project
The Amalia Project is located 25 km SW of the historic Guadalupe y Calvo mining district in Chihuahua (Figure 1). Radius geologists discovered high grade epithermal silver-gold mineralization in several veins, vein breccias, and disseminated zones over 3.5 km of strike length and a 750 m vertical interval following the trace of a large regional fault zone. Radius initially acquired the 380 hectare core license and subsequently staked an additional regional license covering multiple target areas (Figure 2) that totals 10,250 hectares. In July 2018 Radius entered into an agreement with Pan American Silver Corp. ("Pan American") to drill and explore the project.
The Agreement
Pursuant to an option agreement signed in June 2018, Pan American Silver Corp. was granted the right to earn an initial 65% interest in the Amalia Project by making cash payments to Radius totalling US$1.5 million (paid) and expending US$2 million on exploration over four years (completed). Pan American may earn an additional 10% by advancing the property to preliminary feasibility.
Mining Property
The 10,250 hectare property includes the Amalia, California and El Cuervo major vein systems. Within these major vein systems are multiple targets, outlined in Figure 3, all of which are included in Radius's consolidated concessions that extend for more than 10 km of strike length of the regional fault.
Structures:
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Amalia Vein, 3 km length with high grade Au-Ag, includes drill defined San Pedro high grade zone (Figure 4, 5, 6)
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California Vein, 2 km length with high grade Au-Ag on surface and in drilling (Figure 7)
- El Cuervo Vein, 1 km length with anomalous Ag-Au (Figure 8, 21, 22, 23).
Geology and Mineralization:
The main targets at Amalia are located along a large regional scale NW trending fault system, which separates the upper rhyolite volcanics from the lower andesite volcanics. Radius has identified outcropping mineralization over 3.5 km along this structural break. The principal target at San Pedro, outcrops as a 500 m x 70 m zone of intense epithermal multiphase silicification, and brecciation with stockwork veining occurring at the contact between the upper rhyolite and lower andesite volcanic sequence. Figure 9 showcases multiphase silicification events in drill core from San Pedro. See Figures 10 and 11 for 1 m core samples with electrum mineralization within the quartz sulphide stockwork zone.
Summary of Drilling
67 drill holes totalling 23,058 m has been completed at the Amalia project. 10,588 m in 31 drillholes has been completed on the Amalia vein system, and 3,814 m in 14 drillholes completed in the California vein system and 8,656 in 22 drill holes has been completed at the El Cuervo zone. The current drill program is focused on the sub-parallel El Cuervo structure where stockwork veining and breccias up to 40 m wide have been defined semi-continuously for 1.5 km and surface rock chip samples returned up to 637 g/t Ag and 2.24 g/t Au.
Within the greater Amalia project there are many targets remaining to drill test including: Oro Viejo, La Caverna, California SE, El Durazno and Palmillas.
With the San Pedro zone drill defined and infill and expansion drilling planned for this year at California, Radius will be in a position to define a significant resource at the Amalia Property and is excited by the possibility of new discoveries at multiple targets that remain to be drill tested.
Table of Intercepts – Amalia Vein SystemDRILLHOLE FROM (m) TO (m) INTERVAL (m) EST. TRUE WIDTH Ag (g/t) Au (g/t) AMDD18-001
44.35
56.35
12.00
9.5
44
0.10
AMDD18-002
no significant mineralized intercepts
AMDD18-003
107.44
137.44
30.00
24
65
0.30
AMDD18-004
no significant mineralized intercepts
AMDD18-005
no significant mineralized intercepts
AMDD18-006
no significant mineralized intercepts
AMDD18-007
129.10
133.10
4.00
3
229
0.29
AMDD18-008
98.65
99.65
1.00
0.8
521
2.28
And
126.65
131.65
5.00
4
571
1.14
AMDD18-009
140.35
174.35
34.00
29.44
406
6.13
Including
144.35
170.35
26.00
22
517
7.80
Including
165.35
170.35
5.00
4
1378
14.71
AMDD19-010
210.70
254.70
44.00
34
309
12.39
AMDD19-011
170.50
176.50
6.00
4
24
1.05
Including
173.50
175.00
1.50
1.06
31
2.52
AMDD19-012
176.90
181.90
5.00
4
647
0.09
AMDD19-013
no significant mineralized intercepts
AMDD19-014
235.70
263.70
28.00
24
126
2.30
Including
256.70
259.70
3.00
2.6
761
9.85
AMDD19-015
213.70
317.70
104.00
74.8
55
3.10
Including
216.70
297.70
81.00
65
61
3.75
Including
234.70
255.70
21.00
17
65
7.91
AMDD19-016
251.20
371.20
120.00
78
21
1.53
Including
252.45
318.25
65.80
43
23
2.36
Including
293.20
316.40
23.20
15
41
4.61
AMDD19-017
316.55
322.10
5.55
4.19
-
0.88
AMDD19-018
268.15
269.45
1.30
0.75
2320
12.50
And
332.45
346.10
13.65
7.83
22
1.39
AMDD19-019
336.70
344.10
7.40
6.34
22
0.49
AMDD20-020
no significant mineralized intercepts
AMDD20-021
no significant mineralized intercepts
AMDD20-022
313.05
336.15
23.10
14.50
321
6.80
Including
319.40
325.65
6.25
4.18
813
18.34
AMDD21-023
520.85
530.40
9.55
6.50
151
0.59
AMDD21-024
no significant mineralized intercepts
AMDD21-025
150.85
151.70
0.85
0.60
475
1.48
And
170.85
178.45
7.60
5.00
70
1.73
And
239.75
249.40
9.65
7.28
57
0.36
And
274.25
277.85
3.60
2.72
55
0.32
And
285.85
293.90
8.05
5.50
99
0.93
AMDD21-026
165.50
166.65
1.15
0.80
151
3.32
And
239.75
243.40
3.65
2.37
70
1.81
And
283.40
284.45
1.05
0.70
53
4.59
And
320.70
323.70
3.00
2.00
8
3.17
And
347.00
347.95
0.95
0.62
65
0.57
And
352.90
353.40
0.50
0.33
115
0.25
AMDD21-027
no significant mineralized intercepts
AMDD21-028
no significant mineralized intercepts
AMDD21-029
no significant mineralized intercepts
AMDD21-030
no significant mineralized intercepts
AMDD21-031
133.75
147.00
13.25
13.25
117
0.90
The most recent program targeted the California vein system defining wide Au-Ag mineralization across 1 km of strike length. The initial shallow drilling has intersected multiphase breccias and stockwork veins with significant widths up to 50 m and high grades with individual samples up to 4210 g/t Ag and 33.1 g/t Au. See Figure 12 for a drill core photo of Ag-Au mineralization from the California vein. See Figures 15 to 20 for cross sections of the drilling at California vein system with results.
Table of Intercepts – California Vein SystemDRILLHOLE FROM (m) TO (m) INTERVAL (m) EST. TRUE WIDTH Ag (g/t) Au (g/t) AMDD21-032
38.10
44.30
6.20
5.62
93
0.43
And
62.70
90.00
27.30
24.74
90
0.26
Including
78.00
80.35
2.35
2.13
220
0.61
Including
86.00
88.60
2.60
2.36
263
1.37
AMDD21-033
148.60
199.00
50.40
23.66
50
0.05
Including
178.80
194.25
15.45
7.25
68
0.07
Including
188.20
192.40
4.20
1.97
113
0.12
AMDD21-034
145.70
149.65
3.95
3.58
487
2.15
Including
146.80
149.65
2.85
2.58
658
2.96
Including
148.00
148.50
0.50
0.45
2810
15.15
AMDD21-035
212.65
229.80
17.15
10.32
35
0.07
And
243.10
243.50
0.40
0.24
482
3.36
AMDD21-036
108.60
110.35
1.75
1.59
578
0.27
Including
109.90
110.35
0.45
0.41
1930
0.71
AMDD21-037
177.95
180.40
2.45
1.30
37
0.18
Including
177.95
178.55
0.60
0.32
54
0.53
AMDD21-038
151.00
162.20
11.20
9.06
379
1.26
Including
156.20
157.00
0.80
0.65
4244
16.96
Including
156.20
156.55
0.35
0.28
4210
33.10
AMDD21-039
308.20
335.10
26.90
20.30
353
2.59
Including
308.20
331.90
23.70
17.89
394
2.93
Including
314.45
321.95
7.50
5.66
976
7.38
Including
317.85
321.95
4.10
3.09
1520
12.61
AMDD21-040
385.35
396.50
11.15
6.55
99
0.64
Including
385.35
393.55
8.20
4.82
120
0.78
Including
388.45
391.10
2.65
1.56
210
1.12
Including
389.60
391.10
1.50
0.88
249
1.28
AMDD21-041
144.00
145.25
1.25
1.13
36
0.03
AMDD21-042
216.95
218.50
1.55
0.89
24
0.003
AMDD21-043
102.25
115.00
12.75
9.48
259
0.54
Including
108.05
114.05
6.00
4.46
483
1.06
Including
108.05
111.25
3.20
2.38
705
1.92
AMDD21-044
273.00
312.65
39.65
29.47
204
0.35
Including
283.00
312.65
29.65
22.03
256
0.44
Including
287.50
306.55
19.05
14.16
346
0.63
Including
301.00
306.55
5.55
4.12
770
1.69
Including
304.00
305.65
1.65
1.23
1446
5.11
Including
305.00
305.65
0.65
0.48
2470
11.90
AMDD21-045
333.75
421.00
87.25
50.04
60
0.05
Including
339.50
350.45
10.95
6.28
104
0.09
Including
359.50
362.60
3.10
1.78
165
0.08
Including
413.90
417.20
3.30
1.89
187
0.29
At El Cuervo, all drill holes have been collared from 2 platforms with the holes fanned out testing approximately 350 m of strike extent and 300 m depth. The El Cuervo structure remains open to expansion along strike and to depth. Assay results for holes AMDD22-055 to AMDD22-060 are still pending. The full table of results as well as plan maps showing the El Cuervo drilling to date are presented below.
Table of Intercepts – El Cuervo Vein System
DRILLHOLE FROM (m) TO (m) INTERVAL (m) EST. TRUE WIDTH Ag (g/t) Au (g/t) AMDD21-046 214.35 214.80 0.45 0.43 214 0.52 And 225.55 228.35 2.80 2.70 122 0.13 And 239.25 270.20 30.95 29.90 44 0.13 Including 239.25 242.95 3.70 3.57 158 0.49 Including 239.25 240.95 1.70 1.64 233 0.31 And 292.00 295.50 3.50 3.38 203 0.53 Including 294.40 295.50 1.10 1.06 381 1.31 AMDD21-047 245.10 341.10 96.00 83.14 167 0.54 Including 279.90 341.10 61.20 53.00 232 0.65 Including 279.90 325.10 45.20 39.14 290 0.80 Including 290.40 297.75 7.35 6.37 592 0.69 Including 300.00 317.35 17.35 15.03 302 1.13 Including 309.50 317.35 7.85 6.80 438 1.12 AMDD21-048 214.85 216.45 1.60 1.55 116 1.39 And 222.15 223.50 1.35 1.30 302 0.56 And 227.00 233.30 6.30 6.09 77 0.61 Including 229.60 231.80 2.20 2.13 125 0.68 And 265.60 303.45 37.85 36.56 54 0.34 Including 286.90 297.40 10.50 10.14 84 0.75 Including 294.75 296.40 1.65 1.59 139 4.02 AMDD22-049 304.90 306.35 1.45 1.24 62 0.81 And 340.85 351.65 10.80 9.26 63 0.80 And 358.40 376.20 17.80 15.26 144 0.92 Including 365.55 376.20 10.65 9.13 190 1.01 Including 365.55 366.55 1.00 0.86 469 0.97 Including 375.00 376.20 1.20 1.03 483 3.94 AMDD22-050 336.75 337.55 0.80 0.61 107 2.60 And 347.10 349.00 1.90 1.46 53 0.27 And 394.90 409.50 14.60 11.18 117 0.92 Including 394.90 395.80 0.90 0.69 1185 6.93 Including 406.45 409.50 3.05 2.34 104 1.32 AMD22-051 348.50 349.55 1.05 0.83 125 2.10 And 398.65 416.00 17.35 13.67 253 1.11 Including 398.65 399.25 0.60 0.47 1510 2.52 Including 408.40 416.00 7.60 5.99 414 2.10 Including 410.50 413.15 2.65 2.09 555 4.94 Including 412.00 413.15 1.15 0.91 637 10.70 AMDD22-052 278.20 290.00 11.80 10.61 450 1.31 Including 281.35 288.00 6.65 5.98 695 1.44 Including 285.90 288.00 2.10 1.89 1577 2.27 Including 285.90 287.30 1.40 1.26 1800 0.50 And 308.70 310.00 1.30 1.17 37 1.22 And 327.10 328.35 1.25 1.12 55 0.68 And 332.85 336.00 3.15 2.83 84 0.87 Including 334.50 336.00 1.50 1.35 91 1.48 AMDD22-053 Adbandoned AMDD22-054 No Significant Intercepts AMDD22-055 320.15 325.90 5.75 5.17 101 0.73 Including 320.15 320.80 0.65 0.58 508 3.23 AMDD22-056 298.80 302.05 3.25 2.97 3 2.55 Including 298.80 300.25 1.45 1.32 3 4.19 AMDD22-057 287.95 289.50 1.55 1.31 58 1.20 And 358.30 359.35 1.05 0.89 95 0.84 AMDD22-058 323.00 326.00 3.00 2.26 3 1.34 Including 323.00 324.00 1.00 0.75 7 2.64 And 384.25 385.50 1.25 0.94 4 1.26 And 391.50 393.00 1.50 1.13 3 1.26 And 396.50 398.70 2.20 1.66 42 0.90 AMDD22-059 154.20 155.70 1.50 1.36 115 0.30 And 166.70 168.30 1.60 1.45 102 0.26 And 193.80 195.60 1.80 1.63 102 0.48 AMDD22-060 211.10 213.80 2.70 1.74 61 0.57 Including 211.10 212.50 1.40 0.90 80 0.91 And 230.00 231.00 1.00 0.64 90 0.90 And 256.85 263.60 6.75 4.34 29 0.31 Including 259.40 260.35 0.95 0.61 57 1.36 AMDD22-061 304.95 309.30 4.35 3.77 401 0.79 Including 306.30 308.10 1.80 1.56 866 1.61 Including 306.30 306.90 0.60 0.52 1090 4.76 AMDD22-062 348.00 350.20 2.20 1.61 52 0.43 And 354.10 360.00 5.90 4.31 44 0.46 Including 354.10 354.60 0.50 0.37 244 3.03 And 369.30 371.05 1.75 1.28 24 1.41 And 384.95 386.85 1.90 1.39 69 0.90 Including 385.90 386.85 0.95 0.69 98 1.23 And 394.70 395.65 0.95 0.69 14 1.46 And 400.90 401.45 0.55 0.40 38 23.00 AMDD22-063 369.15 373.10 3.95 2.69 78 0.91 Including 370.75 373.10 2.35 1.60 107 1.36 Including 370.75 371.85 1.10 0.75 126 2.28 And 380.00 385.20 5.20 3.55 100 0.48 Including 382.55 383.95 1.40 0.95 250 0.96 Including 383.45 383.95 0.50 0.34 491 1.34 And 402.40 408.30 5.90 4.02 197 1.03 Including 405.55 408.30 2.75 1.88 310 1.30 Including 407.55 408.30 0.75 0.51 585 2.05 AMDD22-064 413.35 414.20 0.85 0.52 29 0.71 And 418.10 433.85 15.75 9.70 27 0.17 Including 418.10 419.60 1.50 0.92 53 0.67 And 468.55 470.00 1.45 0.89 81 0.40 AMDD22-065 286.40 303.40 17.00 15.15 438 0.80 Including 293.10 298.15 5.05 4.50 1330 2.02 Including 294.00 296.00 2.00 1.78 3182 4.49 Including 294.00 295.25 1.25 1.11 4830 4.94 And 331.30 338.00 6.70 5.97 76 3.15 Including 331.30 332.10 0.80 0.71 436 4.87 Including 335.70 338.00 2.30 2.05 35 7.40 Including 336.95 338.00 1.05 0.94 33 12.75 AMDD22-066 319.40 332.95 13.55 10.82 841 10.25 Including 322.60 332.95 10.35 8.27 1091 13.20 Including 327.30 332.95 5.65 4.51 1560 19.16 Including 327.30 329.35 2.05 1.64 2646 29.06 Including 327.30 328.30 1.00 0.80 2830 32.70 AMDD22-067 375.20 376.55 1.35 0.95 11 2.87 And 387.35 405.90 18.55 13.12 27 0.34 Including 398.40 402.70 4.30 3.04 68 0.21 Including 398.40 400.00 1.60 1.13 103 0.22 Exploration Targets
Palmillas Target
The Palmillas target is a small historic working 1.5 km along the Amalia Fault from the San Pedro zone. At Palmillas, Radius took a 4 m section that assayed 9.5 g/t Au and 73 g/t Ag, and a 10.5 m section that assayed 1.54 g/t Au and 58 g/t Ag. Mineralization is hosted within fault-controlled quartz vein breccias similar in style to San Pedro (Figure 14).
Within the 10,250 hectare Amalia Property are multiple prospects including Palmillas, Dulces, Guadalupe and Durazno, which have been prospected and are developing as future drilling targets.
Oro Viejo, La Caverna, California SE, El Pando
Untested vein breccia targets along the California vein system, with gold grades from below detection to 27 g/t
Quality Assurance and Quality Control
Pan American Silver has been the operator on Amalia since Q3 of 2019; all their surface samples and drill core have been analyzed at an ISO/IEC accredited ALS Geochemistry laboratory.
Previous rock samples are acquired by Radius Gold's geologists and trained sampling teams under the supervision of the geologists. Majority of the rock samples consist of chip channels ranging from 0.5 to 3m. These samples are forwarded to an ALS Geochemistry laboratory for analysis of Au, Ag and other elements using ALS codes Au-ICP21 and ME-ICP61. Au-ICP21 is a fire assay method with an ICP-AES finish for Au. ME-ICP61 is a 34 multi-element (includes Ag) analysis that uses a four acid-digestion with an ICP-AES finish. For over-limits of Au or Ag, analysis using a fire assay method with gravimetric finish is automatically conducted. Quality control samples (blankets, standards etc.) are included with the field samples at regular intervals. The QA samples' results are monitored to ensure the returned results are within the acceptable range.
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Amalia
San Pedro
California
El Cuervo
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AMDD18-009
AMDD19-010
AMDD19-014
AMDD19-015
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January 26, 2022
High Grade Gold & Silver Amalia Project- Drilling Now! | Jan 2022 Update
