La Adelita Project

• Located in the Alamos Mining District, next to Alamo Dorado Mine in Southern Sonora, Mexico

• High-grade Cu-Au-Ag CRD

• Three new discoveries in 2022

• Trenched 9.15m @ 16.45 g/t Au and 1.90% Cu

Figure 2. La Adelita project can be easily accessed from the the town of Alamos and Navojoa City

• Easily accessed via paved main roads and well-maintained access roads.
• Lodging is readily available in Alamos and El Fuerte which are connected to well-maintained unpaved roads, where electrical power lines and hydroelectric stations are nearby.

Figure 3. Location map of La Adelita property

The property is comprised of 7 mining claims covering 6,446 hectares, located between Alamos in southern Sonora and Choix in northern Sinaloa, with an option to earn an 80% interest from Minaurum Gold Inc.

Figure 4. La Adelita Claim Boundaries

SURFACE LAND AGREEMENT: The communal land-owning ejjidos of Guamuchil-Palos in Alamos and Picachos in Choix grants the surface rights of the Adelita project

TOPOGRAPHY: Low outlying foothills of the Sierra Madre Occidental.     Elevations within the Adelita project range from 200 to 500 m sea level.

MINES: The past silver-producing Alamo Dorado mine is located adjacent to the west side of the Adelita project while the copper-producing Piedras Verdes mine lies 60 km NW of the project.

REGIONAL GEOLOGY

Figure 5. Physiographic provinces of Mexico (INEGI). The Adelita project lies in the western foothills of the Western Sierra Madre province, near its boundary with the Pacific Coastal Plain province.

The Adelita Project lies in the western-most foothills of the Sierra Madre Occidental physiographic province, near its transition into the Pacific Coastal Plain province. Tectonically, Adelita is near the eastern margin of the Cordilleran Orogenic Belt and its boundary with the Sierra Madre Occidental Volcanic Belt.

Figure 6. Principal geologic belts of Mexico. The Adelita project lies in an outlier of the Sierra Madre Occidental Volcanic Belt, near its boundary with the Cordilleran Orogenic Belt. Information from Servicio Geológico Mexicano.

Bedrock in the region is dominated by late Paleozoic to Mesozoic metasedimentary and metavolcanic rocks that have been intruded by late Cretaceous intrusives with composition ranging from granodiorite to quartz monzonite, and associated granitic stocks and aplite dikes.

NW-striking dextral faults and NE-striking sinistral faults, along with N-E striking normal faults dominate the structural framework. Latest movement on these faults is related to the Miocene-Pliocene opening of the Sea of Cortez of the Sonoran Basin and Range province.

PROJECT GEOLOGY

Figure 7. Geological map of the Adelita Project

Jurassic-Cretaceous metamorphic rocks

A sequence of metavolcanic and metasedimentary rocks forms the highest hills in the Adelita project area. The youngest rock limestone corresponds with the regional lower Cretaceous rudist-bearing limestones.

The mineralized skarn at Cerro Grande is formed in the skarn-altered marble.

Laramide intrusive complex

The intrusions lie within the Cerro Grande area. They are of variable composition including the most widespread lithology, biotite granodiorite. In the northern part of Cerro Grande, a group of low hills called El Espinaso del Diablo, is underlain by porphyritic stocks.

Mid-Tertiary volcanic rocks

Lie unconformably on Laramide intrusives and metamorphic rocks in the southwestern part of the Adelita project area. These units appear to be the remnants of once regionally extensive volcanism related to the Sierra Madre volcanic field.

Mid-Tertiary rhyolite intrusion

A faint flow banding quartz-eye rhyolite stock cuts both metavolcanic and mid-Tertiary volcanic rocks in the Las Trancas area.

Upper Tertiary – Quaternary units 

Unconsolidated cobble conglomerates occupy the eastern portion of the project area.  A basaltic lava flow caps hill tops while alluvium and feldspathic soils cover much of the valley bottoms in the project area.

Copper-silver-zinc mineralization at La Adelita Project is associated with garnet skarn in bedrock exposures over approximately 180 meters on Cerro Grande in the center of the concession block. Continuous-chip samples in the adit and from surface pits have returned values of 1 percent Cu, 1 ppm Au, 10 ppm Ag, and strongly anomalous Zn. Skarn-altered and re-crystallized carbonate rocks underlie all of Cerro Grande, an area roughly 1 by 1.5 km.

Figure 8. Projected Cerro Grande Zone, La Adelita Project

Drilling at Cerro Grande shows that an earlier (prograde) phase of grossularite garnet alteration was followed by (retrograde?) alteration to andradite (?) garnet associated with sulfide mineralization. Identified primary copper minerals at Cerro Grande include chalcopyrite, chalcocite, native copper, and bornite.

At the Las Trancas prospect, in the south-central part of the concession block, a small open cut was developed on copper-oxide mineralization in hematite- and sericite-altered metasedimentary rocks.

At the Mezquital area, scattered outcrops of quartz- and sericite-altered intrusive rock and small patches of oxide copper mineralization coincide with the soil geochemical anomalies. North of Mezquital quartz-tourmaline breccia is associated with anomalous Mo, Cu, and Au in soil samples.

“Hub and Spoke” CRD-Porphyry Model 

• Initial results indicate that La Adelita Project could follow the CRD-Porphyry  “Hub and Spoke” model
• Porphyries intruding carbonates produce Skarn and CRD deposits (spokes) that extend kilometers from the Porphyry (hub)
• Examples include Bingham Canyon (USA) and Leadville (USA)

Local sources report that the short adit (the “Adelita” adit) and prospects at Cerro Grande date from the 1960s. A small amount of copper-mineralized rock was hand sorted and shipped at that time. At the Las Trancas prospect, an open cut was dug into a shear-hosted Cu-oxide occurrence. The working is believed to be from the 1990s or early 2000s.

Figure 9. Minaurum Drilling in 2010. One of the very first holes at the Adelita project being set up for drilling.

Minaurum Gold started its exploration program at the Adelita project with a program of geological mapping and geochemical sampling in 2008. The program resumed in 2010 with soil sampling, further rock-chip sampling, core drilling of 8 holes at Cerro Grande, and a helicopter-borne VTEM – magnetics survey. Ocean Park Ventures Corp entered into an option agreement with Minaurum for the Adelita project in 2011. Ocean Park carried out an induced polarization/resistivity survey on the project in 2011 and a program of detailed geological mapping, further geochemical sampling, and drilling of 13 core holes at the Cerro Grande and Mezquital prospects in 2012. Ocean Park dropped the option at the end of 2012. In 2018, Minaurum drilled one hole at Cerro Grande and 2 holes at Las Trancas.

Previous Exploration Program

Exploration at Adelita has consisted of geological mapping, geochemical sampling, airborne and ground geophysics, and drilling. Historical drilling at Adelita is summarized below.

Table 1. Historical Drilling at Adelita

High-grade and long intersections from minimal drilling were completed on the Cerro Grande zone (see Table 2 for highlights).

Table 2. Drill results from previous drilling at Adelita’s Cerro Grande zone

*   Estimated True Width except where otherwise noted

** parallel/subparallel to mineralized zone (not True Width)

Infinitum Copper's mapping, prospecting, and surface sampling program conducted from October 2021 to January 2022 has identified three zones of significant copper, silver, gold, and zinc mineralization at Cerro Grande Footwall, Las Trancas, and Pericos zones. A total of 27 grab and 1,024 channel samples were gathered from bedrock during this initial phase of the exploration program. (March 16, 2022 Press Release)

See the Sampling Results table here

Trenching

A backhoe was mobilized to La Adelita last week of January 2022 to begin follow-up work to further expose the newly identified zones of mineralization described above. A total of 14 mechanical and hand trenches were excavated in Las Trancas and Pericos zones with a total of 750 linear meters of sampling. A total of 434 channel samples have been gathered from the trenches to date, and results are pending.

Drilling

Infinitum copper started a two-phase, 9,000-meter diamond drilling campaign at La Adelita last March 30, 2022 (March 30, 22 Press Release)

Phase 1 will consist of 3,000 meters of diamond drilling. These drill holes are targeting areas within and adjacent to the existing mineralized zones, plus some drilling on newly discovered zones such as Cerro Grande Footwall, Pericos, and Las Trancas South.

The 6,000-meter Phase 2 drilling program targets will be:

• Follow-up on targets suggested in Phase 1,

• Mineralization identified in the ongoing trenching program (results pending)

• Prospective anomalies generated in the magneto-telluric geophysical survey

• Extensions of known zones​

Geophysics

Infinitum Copper is currently conducting a magneto-telluric geophysical survey at La Adelita consisting of ten lines totaling 14.8 km. (March 24, 2022 Press Release)

. La Adelita Project - Figure 1 . La Adelita Project - Figure 2 . La Adelita Project - Figure 3

. Adelita Project - Surface Samples, March 16, 2022.