Resultados de Búsqueda por Autor

1

objeto de conferencia

Oligocene-Neogene tectonics and sedimentation in the forearc of southern Peru, Tacna area (17.5°-18.5°5)

Publicado por
Flores, Alexander, Acosta Ale, Jorge Gilberto, Bedoya Jaén, Conrado, Sempere, Thierry

Publicado 2005

Fault systems observed in the southernmost Peruvian forearc (Tacna area) provide information on the structure of the inner Bolivian Orocline (Arica elbow). Here we present the characteristics of the main fault systems observed in the Tacna area, as well as evidences of structural control on the deposition of Upper Cenozoic units and regional geoforms. We propose a synthetic chronology of deformation.

2

objeto de conferencia

Nuevas Edades 40Ar-39Ar y K-Ar en el Sur del Perú

Publicado por
Sempere, Thierry, Fornari, Michel, Acosta Ale, Jorge Gilberto, Pino Zeballos, Adán Manfredo, Flores, Alexander, Jacay Huarache, Javier Pablo, Bedoya Jaén, Conrado

Publicado 2021

Enlace

Damos a conocer edades inéditas obtenidas por los métodos 40Ar-39Ar y K-Ar sobre rocas volcánicas y plutónicas del sur del Perú, y las comentamos brevemente.

3

objeto de conferencia

Lithosperic-scale transcurrent fault systems in Andean southern Peru

Publicado por
Sempere, Thierry, Jacay Huarache, Javier Pablo, Fornari, Michel, Roperch, Pierrick, Acosta Pereira, Harmuth, Bedoya Jaén, Conrado, Cerpa Cornejo, Luis Moroni, Flores, Alexander, Husson, Laurent, Ibarra Chipa, Ivanoff, Latorre Borda, Oswaldo Omar, Mamani Huisa, Mirian Irene, Meza Méndez, Paola Mercedes, Odonne, Francis, Orós Vicente, Fidel Yovani, Pino Zeballos, Adán Manfredo, Rodríguez Mejía, Rildo

Publicado 2002

Enlace

Although Andean southern Peru forms the northwestern termination of the Bolivian Orocline, knowledge of its geology has little progressed in the last 20 years, partly due to the civil war that spread in the region during the 1980s and early 1990s. As a consequence, outdated information and concepts are generally still used in current assessments and syntheses, and updated data are needed. This short descriptive contribution presents the principal tectonic elements we currently recognize in southern Peru, and their relationships with syntectonic sedimentary basins. We observe that the most prominent deformational systems in this part of the Bolivian Orocline are dominantly transcurrent, and that many magmatic manifestations are associated with them.

4

artículo

Sistemas transcurrentes de escala litosférica en el sur del Perú

Publicado por
Sempere, Thierry, Jacay Huarache, Javier Pablo, Carlotto Caillaux, Víctor Santiago, Martínez Valladares, William, Bedoya Jaén, Conrado, Fornari, Michel, Roperch, Pierrick, Acosta Pereira, Harmuth, Acosta Ale, Jorge Gilberto, Cerpa Cornejo, Luis Moroni, Flores, Alexander, Ibarra Chipa, Ivanoff, Latorre Borda, Oswaldo Omar, Mamani Huisa, Mirian Irene, Meza Méndez, Paola Mercedes, Odonne, Francis, Orós Vicente, Fidel Yovani, Pino Zeballos, Adán Manfredo, Rodríguez Mejía, Rildo

Publicado 2004

Enlace

[ENG] Three large transcurrent systems, with related magmatism, are identified in southern Peru. A ∼40-80km-wide, N150-trending, dextral corridor (CECLLA =Cusco-Lagunillas-Laraqueri-Abaroa structural corridor) is characterized by thick Oligocene basic lavas and numerous intrusions. The other two systems are oriented ∼N125-130 and sinistral, and cartographically related to the CECLLA. Miocene to Quaternary basic magmas are associated to the northeastern system (SFUACC = Urcos-Ayaviri-Copacabana-Coniri fault system). In the southwestern region, the abundant Late Cretaceous-Paleocene arc magmatism seems related to the Incapuquio-El Castillo fault system (SFIEC).