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SAN JUDAS PROPERTY

Overview

San Judas is at the southern end of the Caborca Orogenic Gold Belt or Sonora Mojave Mega Shear. A trend known to host several orogenic and related intrusive gold-bearing deposits within an area that extends from north-western Mexico into the southwestern United States; and measures more than 600 km long by 60-80 km wide. There are several large open pit heap leach gold operations within the Caborca Orogenic Gold Belt deposits including Magna’s newly acquired San Francisco property/mine. Others are La Herradura, Soledad-Dipolos and Nochebuena (Fresnillo PLC), Cerro Colorado (Gold Group), El Chanate (Alamos Gold Inc) and La Choya (Hecla Mining). The combined gold reserves and resources identified within the trend to date total in excess of 10 million ounces of gold (Izaguirre et al., 2017) but this figure could be double (20 million ounces) according the current exploration results and plan of the biggest gold producer in the region.

Geology & Mineralization

Mineralization is hosted within a large variety of rocks of several ages; however, most gold bearing quartz veins are hosted primarily by igneous and metamorphic basement rocks. These include banded gneiss, granite, leucocratic granite, schists, gabbro, pegmatites varying in age from Paleoproterozoic (1800-1600 Ma) to Mesoproterozoic (1400 and ~1100 Ma) Damon et al., 1961, Anderson and Silver, 1979, 2005; Iriando et al., 2004. Gold is associated to several pulses of different ages due to continued tectonic activity.

San Judas Project – Geology and Mineralization

The project generally consists of two physiographic expressions: an extensive plain of Quaternary gravels and colluvial occupying the west portion of the area of the project; and Sierrita Prieta, a series of small rugged hills where two units of Precambrian Rocks are exposed.

Gneiss:

Sierrita Prieta is mostly composed by Precambrian gneiss, and more commonly found here is the grey or black foliated quartz-feldspar-biotite gneiss, banded from mm to cm. It is magnetic gneiss.

Granite:

Coarse porphyritic granite with crystals of feldspar up to 3-4 cm at the north of the Sierrita Prieta. It is pink to dark gray in color, weakly foliated, with halos of hematite along the foliation planes.

Both units are hosting several generations of quartz veins. Some of which are deformed veins, milky white color and generally barren. There are, however, other generations of quartz veins containing boxworks of sulfides and gold values. These systems extend over several hundreds of meters along structures and shear zones 110°-130° azimuth dipping 40° - 60°.

At the southwest portion of the property, there are some isolated outcrops of granite. Mainly in the areas known as Pepitas and Represo Seco, with gold mineralization in semi-horizontal quartz bodies. Further to the southwest, limestone and sandstone outcrops have already been identified off the surface of the concessions controlled by Magna, and in the vicinity with Represo Seco are isolated outcrops of amygdaloid and vesicular basalt of pad structures.

San Judas Project Sampling and Geology Map

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](https://www.magnagoldcorp.com/projects/san-judas/geology-mineralization/#)

Exploration

Magna fielded a team of geologists to San Judas December 2019, making significant progress based on mapping and sampling both on surface and in old underground works. Drone technology was used to capture high definition images from key areas, alterations, and structural features to aid in data interpretation. To date, the presence of gold mineralization has been identified and confirmed at these targets.

Santa Lucia and La Paloma are parallel gold bearing structures approximately 500 meters apart with strong hematitic alteration between the structures. Santa Lucia is a bulk mining target consisting of a series of shallow historical mines (trenches and shafts) distributed along a line of over 900 m in length, with a 135-degree azimuth. Most of the historical mines are developed in quartz veins and veinlets hosted in a granoblastic granite showing argillic alteration within a sheared fringe. Mapping has identified parallel structures on historical mines in sheared granite with quartz veinlets, oxides, and boxworks of the original sulfides (pyrite, galena, etc.). Immediately north of Santa Lucia is the Las Palomas area, where historical mines were developed on six parallel structures in granoblastic granite, dipping 45 – 50 degrees, 150-degree azimuth, sub-parallel to the Santa Lucia trend. Historical mines tend to be of low angle, at depth with high angle fracturing of gray quartz cutting the main structures and foliation in the granite. The best gold values at Las Palomas site are 26.40 g/t Au producing adjacent samples of 14.60 g/t Au, 5.54 g/t Au, 7.30 g/t Au. These samples are strongly oxidized with stockwork veining containing boxworks from sulfides and strong hematite alteration. Assay results of samples over 0.1 ppm Au are shown in the Table 1.

Table 1 - Gold assay results from rock chip sampling along San Judas Shear zone

ID SampleTargetType of SampleTrue Width (m)Au g/tAg g/tCu g/tPb g/tZn g/t
10145Las PalomasChips Channel0.826.407.70314,80395
10146Las PalomasChips Channel1.014.604.80592,16481
10219San MartínChips Channel1.013.700.40492277
10354Las PalomasChips Channel0.512.902.10700982950
10078San MartínChips Channel2.09.201.4045537
10148Las PalomasChips Channel0.87.309.60231,86580
10222San MartínChips Channel1.07.123.30353924
10201San MartínChips Channel0.26.701.502246930
10205San MartínChips Channel1.06.231.4046786303
10128Las PalomasChips Channel1.06.146.90761,694582
10147Las PalomasChips Channel1.05.542.90553,490358
10079San MartínChips Channel2.05.160.701301047
10213San MartínChips Channel0.64.514.704073,285133
10144Las PalomasChips Channel0.54.432.201161,389111
10251Las PalomasChips Channel0.44.164.20162,25684
10179San MartinChips Channel1.94.090.502412059
10142Las PalomasChips Channel0.74.081.105244740
10173San MartinChips Channel0.73.370.40202201223
10220San MartínChips Channel2.03.130.70814431
10196San MartinChips Channel2.02.842.3046290262
10149Las PalomasChips Channel1.52.830.502782948
10232San MartínChips Channel1.02.700.4016815220
10211San MartínChips Channel1.02.592.70811,452200
10359Las PalomasChips Channel0.32.490.7081334
10218San MartínChips Channel1.02.440.50261616
10136Las PalomasChips Channel0.52.412.103372917
1913Las PalomasDumpN/A2.200.9051323390
10356Las PalomasChips Channel0.92.0143.301649,2153,518
10238San MartinChips Channel0.81.710.15152565
10171San MartinChips Channel2.01.650.15491777
10187San MartinChips Channel2.01.613.3036247734
10193San MartinChips Channel2.01.590.302878205
10203San MartínChips Channel1.01.561.401912,4641,509
10127Las PalomasChips Channel1.01.480.805225473
10120Las PalomasChips Channel0.51.344.30451,389964
10076San MartínChips Channel2.01.270.15311021
10132Las PalomasChips Channel1.11.226.101843,89948
10191San MartinChips Channel2.01.210.8023153307
10192San MartinChips Channel2.01.122.0045151323
10202San MartínChips Channel1.00.934.40953,7142,053
10093San MartínChips Channel2.00.811.206816927
10134Las PalomasChips Channel1.50.757.701013,673112
10140Las PalomasChips Channel0.50.731.3053688816
10100San MartínChips Channel1.50.640.15381155
10074San MartínChips Channel2.00.620.15961018
10091San MartínChips Channel2.00.600.801017267
10180San MartinChips Channel2.00.590.80133543
10184San MartinChips Channel0.40.580.151232242
10353Las PalomasChips Channel0.50.572.301771,82447
10174San MartinChips Channel1.30.570.158773124
10098San MartínChips Channel2.00.500.15511342
1909San MartínDumpN/A0.480.1521439
10182San MartinChips Channel0.70.440.1598759
10183San MartinChips Channel2.00.420.15851068
10221San MartínChips Channel2.00.410.40527714
10225San MartínChips Channel0.90.400.15532625
10138Las PalomasChips Channel0.80.401.104719051
10092San MartínChips Channel2.00.391.005011032
10264Las PalomasChips Channel1.00.350.90694475
10172San MartinChips Channel1.60.310.15452587
10089San MartínChips Channel2.00.281.409537274
10175San MartinChips Channel1.80.280.1510640155
10361Las PalomasChips Channel0.30.270.4031029
10164San MartinChips Channel2.00.260.15396246
10217San MartinChips Channel2.00.240.151198755
10162San MartinChips Channel2.00.220.60473130
10206San MartínChips Channel0.90.190.8037709260
10137Las PalomasChips Channel1.50.160.501593622
10226San MartínChips Channel0.60.160.15111575

San Martin hosts gold in oxidized granite and gneiss pervasive hematite and limonite alterations. Mineralization is quartz stockwork along foliation and cross cutting quartz veinlets. San Martin has a series of historical mines positioned 155- and 180-degrees azimuth, dipping strongly to the West and East in lengths that vary from 150 to 200 meters, over an area of 1,250 m in length and 750 meters in width. Several historical workings and areas of strong hematite alteration were sampled, and assay results are shown in Table 1. The key take-away of the sampling and geological work to date in the San Martin area is the fact that the historical high-grade small mines are aligned with North-South trending structures with lower grade hematite stockwork in low-angle veining structures in the host rock, opening the possibility of finding high volume bulk deposits.

San Martin Surlies at the southeastern end of the structural trend formed by the veins system-shear zone of Santa Lucia, Las Palomas and San Martin. Similarly to those, this area is characterized by the existence of shallow historical mining works developed by small prospectors in the past along quartz veins, stockworks filling fractures, fissures and local shears developed along the foliation. The host rock is a biotite-sericite-chlorite gneiss with strong oxidation and with quartz-pegmatite-muscovite, andesitic and gabbro dikes emplaced along pre-existing shear zones and faults. Boudinage areas with varying quartz and pegmatite vein thicknesses are common. Gold values are associated to two structural systems: 1) One conformed of quartz veins, stockworks, breccias and sulphide boxworks, quartz veins (galena, pyrite, sphalerite), occasionally disseminated fine pyrite, the system is substantially parallel to the foliation of the host rock with azimuths of 75 ° to 100 ° with dips from 22 ° to 55 ° to both, SW and NE and; 2) Another system conformed of veins and quartz veinlets with iron oxides that are mainly 355 ° to 30 ° azimuth high-angle dips that become vertical, primarily hematite and jarosite. Many of the historical works found in this area were developed along this system. Interpretation results from assays indicate a mineralized structural trend along the Santa Lucia, Las Palomas and San Martin mineral zones, extending up to 4.5 km long and over 1km wide

A total of 72 rock chip samples were taken from the San Martin Sur area; 33 of which returned values above 0.10 g/t. (see Table 3).

Table 2 - Assay result over 0.1 ppm Au on the San Martin Sur target

ID SampleTargetType of SampleTrue Width (m)Au g/tAg g/tCu g/tPb g/tZn g/t
10539Smartin SurChip Sample0.334.306.004218735
10554Smartin SurChip Sample0.216.701.30155441
10513Smartin SurChip Sample0.212.5054.80621,707138
10538Smartin SurChip Sample1.25.940.30343039
10552Smartin SurChip Sample0.64.970.20772881
10522Smartin SurChip Sample1.03.870.503024780
10515Smartin SurChip Sample0.63.436.101932273
10512Smartin SurChip Sample1.23.2716.5056326153
10529Smartin SurChip Sample0.43.151.003610239
10446Smartin SurDump1.02.9114.803526359
10525Smartin SurChip Sample1.02.342.806715827
10441Smartin SurChip Sample0.22.2521.3030215115
10562Smartin SurChip Sample0.62.091.0039519554
10561Smartin SurChip Sample0.52.000.30631639
10564Smartin SurChip Sample0.51.340.20144955
10537Smartin SurChip Sample0.21.220.60733144
10533Smartin SurChip Sample0.50.812.005147044
10516Smartin SurChip Sample0.30.741.50353849
10553Smartin SurChip Sample1.50.710.80476957
10536Smartin SurChip Sample1.30.690.806718030
10545Smartin SurChip Sample1.00.620.4067650116
10557Smartin SurChip Sample0.90.443.30182448
10514Smartin SurChip Sample0.60.412.2079127195
10534Smartin SurChip Sample0.40.390.40856952
10546Smartin SurChip Sample0.50.312.101715139
10556Smartin SurChip Sample0.60.215.20193760
10508Smartin SurChip Sample0.90.211.7082845
10505Smartin SurChip Sample0.70.190.5055827
10506Smartin SurChip Sample1.10.131.404711131
10548Smartin SurChip Sample1.00.130.203359163
10563Smartin SurChip Sample1.20.132.104725152
10547Smartin SurChip Sample1.00.131.7043225131
10551Smartin SurChip Sample0.80.100.90341295

Represo Seco is a high grade sheeted and brecciated vein system with three generations of quartz; white, crystalline quartz and chalcedony-drusy, filling open spaces in granite two meters thick with a strike length of 65 meters at the Represo Seco site and is open ended. Rock chip samples indicate a strong possibility of stacked gold structures along faults in the granite host. Magna collected a trench sample that ran 7 g/t Au at Represo Seco. Mapping and sampling are ongoing to the southwest to the property boundary with outcrops containing stockwork with hematite, jarosite, limonite, sericite alteration, clays, chlorite, bands of crackled jasperoid silica, and fine-grained magnetite disseminated in fractures. The host rock is granite. See table 4).

Table 3 – Assay results over 0.1 ppm Au from Represo Seco target

ID SampleTargetType of SampleTrue Width (m)Au g/tAg g/tCu g/tPb g/tZn g/t
1911Represo SecoChips Channel0.57.412.80153226142
10323Represo SecoChips Channel1.26.032.4023597076
10322Represo SecoChips Channel1.05.081.7020957665
1912Represo SecoGrab sampleN/A3.255.101902,417398
10321Represo SecoChips Channel1.22.100.701791,31226
10064Represo SecoChips Channel1.01.855.505402,799128
10065Represo SecoChips Channel1.01.524.201771,538107
10066Represo SecoChips Channel1.00.9854.901,2038,10260
10068Represo SecoChips Channel1.50.7110.601,2555,29979
10315Represo SecoChips Channel0.60.430.908210624
10307Represo SecoChips Channel2.00.330.15201449
10067Represo SecoChips Channel1.30.333.109778577
10320Represo SecoChips Channel0.60.210.801571,10264
10069Represo SecoChips Channel1.20.192.402591,98361
10062Represo SecoChips Channel1.00.133.30761,42899

Pepitas is located South of the San Francisco ranch and in between the Cueva de Leon and Represo Seco targets. There is evidence of prior extraction of material with gold nuggets. Although the area is covered by alluvial, there are silicified beds of intrusive and quartz veinlets with gold values at the bedrock. These resemble those from Represo Seco as high grade sheeted and brecciated vein-veinlet systems of low angle, exposed by just a few centimeters. During reconnaissance work along a shallow creek at the north of the Pepitas exposure, there was discovery of another exposure similar to that of Pepitas. Sampling on the structure returned gold values of 2.691 ppm, 0.773, 0.549, 0,111 ppm Au defining and area of high priority of 700 x 500 m. In total for this area, Magna geologists collected 65 rock chip samples from which 16 returned gold values above 0.1 ppm (see Table 5).

Table 4 – Assay results over 0.1 ppm Au from Pepitas target

ID SampleTargetType of SampleTrue Width (m)Au g/tAg g/tCu g/tPb g/t
10428PepitasChip Channel0.62.691.2018865
10344PepitasChip Channel0.31.080.4029107
10416PepitasChip Channel1.30.900.705028
10423PepitasChip Channel1.30.770.5010070
10405PepitasChip Channel1.00.650.302515
10427PepitasChip Channel0.70.5527.609690
10417PepitasChip Channel1.50.540.1533109
10345PepitasChip Channel1.30.420.404057
10419PepitasChip Channel2.00.200.15213
10401PepitasChip Channel0.70.200.402818
10408PepitasChip Channel1.00.180.15825
10346PepitasChip Channel1.80.160.154140
10429PepitasChip Channel0.90.150.152715
10349PepitasChip Channel1.30.150.15106
10426PepitasChip Channel0.80.110.601058
10422PepitasChip Channel1.10.100.1522

Cueva del León hosts argillic altered intrusive felsic rocks that strike from Nto S and dip 45° generally to the west. Initial assays have been in the 1.3 - 3 g/t range. Located in the south-central portion of the property, it is an area with gold mineralization that extends east to west. The most notable evidence is a series of historical mines occurring along a line of about 100-120 meters. The most important of which is Cueva del Leon, developed along a fault vein of quartz and quartz-hematite stockwork hosted in gneiss. Mineralization projects westward along the valley under the alluvial cover and towards Represo Seco and Pepitas targets, then parallel to the regional mineral structures within the San Judas Shear Zone in the northern part of the property. The next step in the plan is to extend the exploration (mapping and sampling) in both directions of Cueva del Leon structure, perpendicular to the general azimuth of the structure exposed in the adit. The purpose is to determine whether there is continuation of the structure observed to both northeast and southwest. 16 out of a total of 72 samples collected at the La Cueva del Leon area returned gold values above 0.1 ppm (see Table 6).

Table 5 – Assay results over 0.1 ppm Au from Cueva del Leon target

ID SampleTargetType of SampleTrue Width (m)Au g/tAg g/tCu g/tPb g/tZn g/t
1901Cueva de LeónChips Channel1.14.9923.1064114,50067
1903Cueva de LeónChips Channel1.04.284.501492,40984
1908Cueva de LeónChips Channel1.22.036.502944,23340
1902Cueva de LeónChips Channel1.51.9023.903186,98254
1905Cueva de LeónChips Channel1.01.803.80961,09453
1907Cueva de LeónChips Channel1.21.016.401952,39327
10038Cueva de LeónChips Channel1.00.999.10504,23879
10040Cueva de LeónChips Channel1.00.832.402932966
10005Cueva de LeónChips Channel2.00.735.50883,80437
10003Cueva de LeónChips Channel2.00.624.308870453
1906Cueva de LeónChips Channel1.10.595.001131,73434
10004Cueva de LeónChips Channel2.00.445.50361,58719
10021Cueva de LeónChips Channel1.00.2013.002363,43912
10053Cueva de LeónChips Channel2.00.170.15215118
10039Cueva de LeónChips Channel1.00.151.70491,50391
10049Cueva de LeónChips Channel1.00.111.303163055
1904Cueva de LeónChips Channel1.00.104.009391040

Las Auras: Geological reconnaissance and rock chip sampling was carried out in the area known as Las Auras, an isolated historical tunnel carved by small prospectors that extends a few meters over a vein-fault with an azimuth of 345 ° - 70 ° dip, cutting the foliation; the host rock is a gneiss and mineralization is associated with quartz veins and veinlets as well as breccias filling fissures in the gneiss. Ten samples were collected, and results are shown in table 7

Table 6 - Assay results from Las Auras target

ID SampleTargetType of SampleTrue Width (m)Au g/tAg g/tCu g/tPb g/tZn g/t
10374Las AurasChip Channel1.215.157.002745,525564
10368Las AurasChip Channel0.61.232.803671,3793,090
10369Las AurasChip Channel0.51.232.701761,095688
10373Las AurasChip Channel0.70.632.303731,1045,052
10371Las AurasChip Channel1.00.361.3072407575
10366Las AurasChip Channel0.50.152.00129483830
10372Las AurasChip Channel1.00.130.6040282787

Geology and Chip Rock and Soil Sampling Map with Assay Results in 7 mineral targets within the

San Judas Property

A composite map of rock chip/soil sampling and geology indicate the San Judas Shear Zone along the veins systems of Santa Lucia, Las Palomas, San Martin and San Martin Sur along the NE end of the property; crossing the Sierrita Prieta Hills entirely from NW to SE. On both SE and NW ends, the shear disappears below the alluvial cover. On the SE end, remnants of trenches and small pit exist from were gold was extracted; at the NW end, a preliminary soil sampling line returned high gold values in the projection within the valley of the shear zone. The exploration program for 2020 includes additional soil sampling on the horizon C of the alluvial cover. On the first attempt, samples were collected from the bottom of holes that were 50-60 cm deep.

On the Pepitas and Represo Seco, the soil sampling was replicated W to E and N to S; 1,000 m in length, with samples 100 m apart.

Rock Chip and Soil Sampling Map with Assay Results on 7 mineral targets within the

San Judas Property

Rock chip and soil sampling map with assay results along Santa Lucia-Las Palomas and San Martin vein and veinlets systems

High definition true color air drone images from rock chip and soil sampling assay results. Infrared imaging section is at Las Palomas, enhancing the hematite halos on the veinlets system.