- Mineral Targets
- Historical Drilling Works
- Rock Chip Sampling
Mercedes is an exploration property located within the Sierra Madre Occidental province (Figure 2), a historically productive, regionally extensive Tertiary volcanic field which stretches from the United States/Mexico border to Central Mexico. Previous work at the La Lamosa area, one of the mineralized targets within the mining concessions, reports disseminated gold mineralization hosted within an andesitic and rhyodacitic volcanic complex intruded by a quartz-feldspar porphyry (QFP). Gold and silver are target commodities sought at Mercedes and the property exhibits textures and alteration consistent with high sulphidation epithermal mineralization, typical of important discoveries in the region.
The project is located 43 km from Alamos Gold 3 Moz Mulatos Gold Mine, 40 km from Agnico’s 1 Moz La India Gold Mine, and adjacent to Minera Alamos’ Santana and Santa Rosa projects. Infrastructure and support services are available to the project; paved Federal Highway 16 passes through the western portion of the claims. Electricity, mail, phone services and accommodation are available at the nearby villages of Yecora and Santana. An electrical line (C.F.E.) passes through the property as it parallels the paved highway.
Mercedes is located toward the western edge of the mineral province and is predominantly underlain by intrusive rocks, granodiorite-monzonite plutonic rocks and quarts feldspar porphyry dykes and stocks exposed by erosion of intermediate and felsic volcanic packages of the lower and upper volcanic sequences.
The thick volcanic sequences are characteristic of the region and form much of the Sierra Madre Occidental. Outcrop in key areas of the property are strongly altered, brecciated intrusives and some propylitically altered volcanics. Zoned assemblages of silica, vuggy silica, phyllic, argillic and distal propylitic alteration are recognized. The main prospect area “La Lamosa” is a prominent, highly oxidized red ridge, visible from the highway (see figure 3). At least two additional early stage targets have been identified within the claim boundaries.
La Lamosa Hill – Picture taken from Highway 16
In addition to a small artisanal shaft developed on a thin quartz vein in the southeast of the property, previous exploration work includes two phases of drilling and extensive surface sampling by other explorers. In 1996 Compania Minera Fernanda SA de CV completed 15 Reverse Circulation holes for a total of 1018m and in 2008 Norma Mines SA de CV drilled 10 diamond drill holes for a total of 1133m. Both drill programs tested the La Lamosa area. Records for the RC drilling are incomplete though reference to the results indicate continuous, consistent gold and silver intercepts from beneath the alteration zone on the ridge. Diamond drilling conducted later by Norma mines did confirm the presence of broad anomalous grades but did not quite replicate the tenor of those previously reported. Gold occurs in oxide, mixed oxide/sulphide, and sulphide reported in previous drilling with pyrite being the primary sulphide mineral along with minor amounts of enargite. Selected drill mineralized intercepts are shown in Table 1:
Summary of 2008 diamond drill hole program as reported by Norma Mines SA de CV:
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*The 2008 drilling intercepted broad zones of highly anomalous Au and Ag grades, though it is important to note that the orientation of said holes did not adequately test the mineralization bounding contacts. For example, holes 08MER001 and 08MER002 were drilled approximately down-dip on the structure and a true width of mineralization is very difficult to measure or estimate. Hole 08MERC003 was drilled northward, still oblique to the zone but may be roughly estimated to have crossed a mineralized zone up to 25m in true thickness.
Over the course of the years several Companies have carried out rock geochemistry work on the property. Obtained reports show strong oxidation in the form of hematite/limonite/jarosite staining and strong silica, vuggy silica and argillic alteration. Figure 3 and Table 2 below show the latest NI 43101 Technical Report data verification sampling.
Rock Chip and Grab Sampling Map at Mercedes, Dale Brittliffe P. Geo. October 2010:
Assay Results from Chips Rock Sampling on Surface at Mercedes Property. Dale Brittliffe P. Geo. October 2010:
|Sample No.||E Nad27 z12 Mex.||N Nad27 z12 Mex.||Description||Au ppb||Ag ppm||Cu ppm||Pb ppm||Zn ppm|
|986063||687684||3142756||Chip sample - 1m - quartz breccia, historical diggings,in clay rich, silica altered structure above collapsed workings||821||40.8||21.1||619.7||15|
|986064||687724||3142667||Float, vein material, Quartz, malachite, azurite, PbS, vein fragments -0.2m diam.||185||100.0||>10,000||28.7||358|
|986065||687715||3143656||Chip, 5m composite - Outcrop near YRC-5, intrusive breccia, sil-clay alt, FeOx, jarosite||179||1.0||118.5||140.0||49|
|986066||687685||3143623||Chip, 10m composite - intrusive breccia, sil- clay alt, FeOx, jarosite, 340/40E slickenside,||648||2.3||83.2||158.0||6|
|986067||687578||3143521||Chip sample 8m composite, intrusive breccia. sil-clay alt, FeOx, jarosite||1375||5.9||23.4||493.0||5|
|986068||687571||3143523||Chip sample, 8m composite, intrusive breccia (, sil-clay alt, FeOx, jarosite||475||5.6||8.1||298.6||3|
|986069||687565||3143529||Chip Sample, 10m composite, Intrusive breccia, sil-clay alt, FeOx, jarosite||561||17.5||18.8||416.2||3|
|986070||687614||3143526||Chip sample, 6m - Intrusive breccia, sil- clay alt,FeOx, jarosite, as intersected in hole MER-08- 03||1634||14.6||14.1||786.1||3|
|986071||687602||3143521||Chip Sample 6m - Intrusive breccia, sil-clay alt, FeOx, jarosite, intersected in hole MER-08-03||549||8.8||12.4||603.9||3|
|986072||687632||3143548||Chip sample 1.2m, intrusive breccia - "vuggy silica" sil-clay alt, FeOx, very strong jarosite- hem, boxwork, possibly intersected in MER-08-03||2072||57.7||45.8||6921.9||13|
|986073||687653||3143563||Chip sample 3m, Intrusive breccia, dark greysil-clay alt, FeOx, jarosite, boxwork, probably not intersected in hole MER-08-03||94||3.7||61.1||513.5||4|
|986074||687663||3143548||Chip 0.7m, Quartz-tourmaline breccia, sil- clay alt, FeOx, jarosite, 95% qtz- tourmaline & 5% FeOx, probably not intersected in MER-08-003||195||8.2||85.0||>10,000||9|
|986075||687674||3143608||Chip sample 2m - Intrusive breccia, sil-clay alt, FeOx, sample taken sub-parallel to the maintrend & true sample width is 1m||136||4.0||22.7||395.5||2|
|986076||687847||3143760||Grab - Quartz- tourmaline vein||51||0.5||14.0||824.5||3|
|986077||687781||3143818||Grab - Quartz-tourmaline-sericite vein (or intrusive)||12||0.2||35.4||38.6||10|
|986078||687742||3143696||Grab - Quartz-tourmaline vein||44||0.7||22.2||2193.1||3|
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A mineral exploration program is being designed to both evaluate the property and determine the grade and extent of La Lamosa area. The program will consist of diamond drilling, property wide geological mapping and prospecting including collection of chip samples and soil sampling. The exploration will be designed to evaluate La Lamosa and identify additional analogous zones.
Mercedes project shows high sulphidation epithermal mineralization typical of important discoveries in the region.
|Located toward the western edge of the Sierra Madre and predominantly underlain by intrusive rocks, granodiorite-monzonite plutonic rocks and quartz feldspar porphyry dykes and stocks exposed by erosion of intermediate and felsic volcanic packages of the Lower and Upper Volcanic sequences.|
|The thick volcanic sequences are characteristic of the region and form much of the Sierra Madre Occidental. Outcrop in key areas of the property are strongly altered, brecciated intrusives and some propylitically altered volcanics.|
|Zoned assemblages of silica, phyllic, argillic and distal propylitic alteration are recognized (same geology as Mulatos and La India mines)|
Previous exploration work includes two phases of drilling:
|In 1996 Compañia Minera Fernanda S.A. de C.V. completed 15 Reverse Circulation holes for a total 1,018m, all within La Lamosa target.|
|In 2008 Norma Mines S.A. de C.V. completed 10 core drill holes in the property for a total of 1,113m. Of those, 6 holes totaling 760.5m were done within La Lamosa target|
|Both drill programs confirmed good gold intersections associated to broad high sulphidation epithermal type extense alteration within volcanic rocks.|
|Project is situated on a 20 km long regional mineralized trend hosting some important exploration targets as well as numerous old relevant mining works.|
|The current and only drilled zone in Las Mercedes Project is the “La Lamosa Hill”, a prominent, highly oxidized red ridge, visible from the highway. There are 4 visible additional targets similar in size and alteration within the claims.|
|There are two known old mining works within the claims: Mina del Oro and Las Marias.|
|These Gold and Silver targets all show textures and alteration consistent with high sulphidation epithermal mineralization. Zoned assemblages of silica, phyllic, argillic and distal propylitic alteration are recognized.|