South America (Argentina)

San Sebastian District, (3,450 HA), La Rioja

The Isobel 15 concession of about 3,450 hectares is in the San Sebastian District of La Rioja. Several pre-existing claims are not included in the Isobel 15 concession. These are shown in Figure 3 as areas outlined in blue that mark the San Sebastian mine (mislocated on Mines Ministry maps) and other claims for feldspar. The San Sebastian mine was a major uranium mine in Argentina.

Malanzan und Olta Districts, (58.664 Ha), La Rioja

The Malanzan and Olta District consists of seven concessions totaling 58,664 hectares. There are several small areas of pre-existing concessions that are excluded from these concessions.

Chepes District, (35.209 Hektar), La Rioja

The Chepes District is covered by four concessions totaling 35,209 hectares . Pre-existing concessions are not known in this area. The concessions in the Chepes district covers a paleochannel, defined by geological mapping and aeromagnetic surveys, in the Carboniferous – Permian sandstones and conglomerates.

Cuandacol District, (41,995 HA), La Rioja

Five Matias concessions total 41,995 hectares in the Guandacol District, La Rioja. Uranium showings occur within sedimentary rocks in a variety of types. Plant trash in Carboniferous to Permian sandstones are replaced by uranium in the west-central corner of the concession block.

Los Colorados District, (10,000 HA), La Rioja

The Color 15 concession of 10,000 hectares occurs in the Los Colorados District of La Rioja. Note that the roll front, past producing uranium mine at Los Colorados (Los Mogotes Colorado) in Figure 1 is only 20 kilometers southeast of the Color 15 concession.

Quines District, (6,000 HA), San Luis

The two concessions in the Quines District in the Province of San Luis total 6,000 hectares . Several areas within these concessions are probably excluded by previous ownership, but this has not yet been established. Uranium mineralization in Rocio 15 is mainly within nose-folds in metamorphic rock near a contact with granite to the east where several small concessions pre-exist the Rocio 15 application.

Santa Rosa Consession, (9,800 HA), San Luis

The Santa Rosa concession of 9,800 hectares is near the town of San Luis in the Province of San Luis. This concession covers extensive deposits of caliche with encrustations of the yellow uranium mineral carnotite. The main showing of carnotite is on top of a caliche horizon at the margin of an ancient shallow open pit mine used for extracting carbonate-rich caliche for construction.

La Suiza Consession, (6,000 HA), San Luis

The La Suiza concession consists of 6,000 hectares in the Province of San Luis. Several small concessions pre-exist within this concession, but their status is unknown. However, these concessions cover lithium-rich pegmatites and placer gold deposits.