The constituents of superunits Yarabamba and Challaviento in southern Peru, according to its composition of major elements, minor and trace and graphing various intrusive rocks geochemical diagrams show that both superunits have a degree of evolution by fractional crystallization They are sub-alkaline nature and high K calc-alkaline seriesThe rocks are both superunits metaluminous nature. The contents of Sr and Rb indicate a strong assimilation and differentiation of magmas. The enrichment of LILE (<100) elements and an impoverishment of less HFSE elements 10, negative anomalies of Nb and positive anomalies of Th, Ce, indicate that both groups are related to intrusive tectonic plate subduction context. The chemical content of the SuperDrive Yarabamba and Challaviento Ce / and Ga / Al and Y, Y + Nb and Rb and Nb are due to contamination during crustal thickening during the Cretaceous-N...

The constituents of superunits Yarabamba and Challaviento in southern Peru, according to its composition of major elements, minor and trace and graphing various intrusive rocks geochemical diagrams show that both superunits have a degree of evolution by fractional crystallization They are sub-alkaline nature and high K calc-alkaline seriesThe rocks are both superunits metaluminous nature. The contents of Sr and Rb indicate a strong assimilation and differentiation of magmas. The enrichment of LILE (<100) elements and an impoverishment of less HFSE elements 10, negative anomalies of Nb and positive anomalies of Th, Ce, indicate that both groups are related to intrusive tectonic plate subduction context. The chemical content of the SuperDrive Yarabamba and Challaviento Ce / and Ga / Al and Y, Y + Nb and Rb and Nb are due to contamination during crustal thickening during the Cretaceous-N...

[ESP] Las rocas intrusivas constituyentes de las Superunidades de Yarabamba y Challaviento en el sur del Perú, de acuerdo a su composición de elementos mayores, menores y trazas y su graficación en los diversos diagramas geoquímicos nos muestran que ambas Superunidades presentan un grado de evolución por cristalización fraccionada, son de naturaleza subalcalina y de la serie calcoalcalino de alto K. Las rocas de ambas Superunidades son de naturaleza metaluminosas. Los contenidos de Sr y Rb nos indican una fuerte asimilación y diferenciación de los magmas. El enriquecimiento de los elementos LILE (<100) y un empobrecimiento de elementos HFSE menor de 10, anomalías negativas de Nb y anomalías positivas de Th, Ce, nos indican que ambos grupos de intrusivos están relacionados a un marco tectónico de subducción de placas. Los contenidos químicos de la Superunidad Yarabamba y Cha...

El metamorfismo en el área Quebrada Totorita-Lunahuaná es principalmente de tipo “Metamorfismo de Contacto”, mostrado en el trabajo de campo, caracterización de unidades geológicas, y afianzado con la petrografía de secciones delgadas. Relacionado a este, se reconoce una zona de fuerte alteración hidrotermal por la presencia de biotita, pero de extensión muy local, lo cual sugiere una posible ocurrencia metálica de un Pórfido de Cobre- Skarn.

The mean metamorphism at Quebrada Totorita, Lunahuaná, is “Contact Metamorphism”-type, according to the fieldwork, characterization of geological units and supported with thin sections petrography. A strong hydrothermal alteration of biotite was recognized associated to the metamorphism, although with very localized extension, which suggest a probable metallic occurrence of Porphyry Copper-Skarn.Key words: