Villa de Ramos - Galore Exploration Project
Figure 44 of the Consejo de Recursos Monograph for San Luis Potosi has a map by Labarthe-Hernandez (1986) of the Villa de Ramos area showing the mineralising body as the Socorro diorite Intrusive (Tso) of Tertiary age whereas the geological map of Villa de Ramos F14-A51 of 2000 has this “intrusive” mapped as Cretaceous andesite (KheA)
Cretaceous volcanics; i.e. Chilitos Formation. This latter map has some interesting points including the presence of “silica-oxide” and several old workings for silver including La Cocinera which is an historic silver mine situated right in the centre of the town.
Ground checking within the Los Angelitos area revealed copper-stained andesites in old workings abutting the “Tja” rocks of Labarthe-Hernandez who mapped the latter as jasperoids—in fact these appear to be a silicified, brecciated rhyolite dome. This dome is flow-banded with iron-oxide staining in fine fractures which in places almost constitutes a stockwork. The rhyolitic dome is centred on Cerro Angelitos at L203.165/P2529.657 in the 14Q square. There are several gossaneous pits with copper oxides of strata-bound aspect in andesites adjacent to the rhyolite dome—these extending at least 100m away from the contact. Fine-grained silicification is widespread. The geological setting resembles the style of Kuroko type deposits. The interpretation has to be that the whole area is prospective for VMS massive sulphides.
The area is open, cactus-scrubland, and very suitable for initial investigation by soil geochemistry and ground geophysics to delineate more precise targets. Based on the reinterpretation of the geology, the Company has staked ground over the Chilitos volcanics adjacent to, and north of, the Angelitos rhyolite dome.
Review of Recent Exploration
The Villa de Ramos property is a recent acquisition and thus far only preliminary reconnaissance exploration has been undertaken in the south of the Galore claim group. It is expected that a detailed ground study of the whole of the district will be undertaken during 2007. Since it’s acquisition the Galore II claim has been the target of an aggressive reconnaissance exploration program focused primarily on a previously known but believed underexplored mineralised structure known as the San Francisco vein contained by the claim block.
On Galore preliminary geological prospecting has identified 15 areas within which indicators of vein systems have been found. Outcrop is scarce within the Galore claim necessitating extensive use of soil geochemical sampling.
On Galore II geologic prospecting of the entire property is ongoing with detailed mapping focused on the San Francisco “Vein” and the San Francisco II Vein. (Figure 9.3) The San Francisco “Vein” was reported last worked by Consejo de Recursos who undertook limited IP and gravity surveys and completed a three diamond drill hole program along the strike length of the San Francisco “Vein” before abandoning the claims. Review of available reports suggests that the previous landowner believed that what was being explored was not a vein but what was being observed was indicative of stratiform mineralisation in volcanics rather than just infilling along a brecciated fault structure. Two of the three short diamond drill holes attempted were completed. Results for drill hole DDH SFIII is presented on Figure 9.4. In hole SFIII two zones of mineralisation was found. The uppermost intersection between 33.60m and 37.70m returned 1.60g/tAu with 60g/tAg and a second better intersection between 68.85m and 85.22m within which there was in the central sector of 2.50m, between 73.90m and 76.95m averaging 1.75g/tAu with 210g/tAg. Recent mapping has extended the known length of the San Francisco “Vein” from 500m to almost 1000m.