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Los Granitos Peraluminosos De Las Sierras De Vinquis, Cerro Negro Y Zapata (sierras Pampeanas), Provincia De Catamarca, Argentina
| Content Provider | Semantic Scholar |
|---|---|
| Author | Toselli, Gustavo Saavedra, José Ramón Martínez Córdoba, G. Medina, María Elena |
| Copyright Year | 1992 |
| Abstract | The studied plutons are close to several batholiths of this region, as Sierra de Mazan and other, but with some mineralogical peculiarities. The magmatic cordierite, common in proximate places, is scarce, as sillimanite, while the andalusite is very rare, with few tourmaline. Fluorite and allanite are also typical accasories only in the granites of the Sierra de Zapata. All plutons are peraluminous of potassic tendency, with cortical affinity. The interpretation of the geochemical values distinguishes between granites of different maturity, emplaced under a predominant influence of active margin for Cerro Negro and Vinquis, while the batholith of Zapata has, below these concepts, a marked feature of within plate. The mineralogical associations suggest that the granites of Cerro Negro and Vinquis were emplaced to pressures of 2 kb or less and temperature of 650o C, while the granites of Zapata had done under conditions of lesser pressure, between 1.5 and 2.0 kb and lower temperature, 600-650o C. |
| Starting Page | 247 |
| Ending Page | 256 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| DOI | 10.3989/egeol.92485-6391 |
| Volume Number | 48 |
| Alternate Webpage(s) | http://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/download/391/411 |
| Alternate Webpage(s) | https://doi.org/10.3989/egeol.92485-6391 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
