Site of veins form of the District of San Isidro:
20 Km to the West of the city of Mendoza, in the first foothills of the foothills are located some uraníferos deposits, of which the most important are those of "Soberanía", "Independencia" and "Papagayos" mines. The uranium mineralization is hosted on brechosas fractures in Triassic sediments.
It's a uranium strip housed in areas corresponding to the Triassic higher, in the immediate vicinity with the of the tertiary Inferior (Eocene) and, with some intermittent stretching for several kilometers with general direction N-S.
In Sandy and clayey sediments there are lenticular veins and ramifications of quartz iorregulares; the first, with variable thicknesses up to 40 centimeters, in part show brechosa structure.
Quartz occurs diaclasado and covering its surface is observed Uranophane and Schröckingerite associated carbonates of calcium and gypsum, and also, sometimes, in certain places, oxidized copper minerals.
Cited uranium minerals, notably the second of them, permeate the rock box largely different, as well, on some occasions, the sandy mass adjacent to the veins.
In depth decreases the proportion of oxide minerals and appear instead impregnations within the quartz and black patina, at levels of fractures, Pitchblende sometimes associated with calcite, up in levels of 35 meters that have reached some work.
The origin of these deposits is hydrothermal low temperature, associated with hidden rocks of the tertiary cycle intrusions.
The most important of these deposits is "Soberanía" which, through work surface and above all underground, provided materials with tenors of 0.25 to 0.70% of U3O8, depending on the type of material is estimated that the potential of the district is small, on the order of 50 - 70 tonnes of U3O8.
Elevation: 2474 metres above sea level.
Mineral ListMineral list contains entries from the region specified including sub-localities
13 entries listed. 6 valid minerals.
Localities in this Region
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Locality Updated: San George Mine, Fairview, Tulare Co., California, USAFrom Chester S. Lemanski, Jr., 13th Dec 2013 16:12:00