9 articles in this issue
Hans Niemeyer,Raul Venegas,Carlos R. Gonzalez,Florencio G. Acenolaza
RESUMEN. Los terrenos paleozoicos del Salar de Navidad, conocidos como 'Estratos del Salar de Navidad', se han subdividido en dos formaciones de distintas caracteristicas litologicas, edad, ambiente deposicional y significado tectonico: Formacion Sierra d... see more
Paulina Gana,Renate Wall
RESUMEN. Se entregan 17 nuevas edades 40Ar/39Ar y K-Ar para las rocas volcanicas de las formaciones Lo Valle y Abanico y de intrusivos hipabisales ('stocks', diques y 'silis') que cortan estas secuencias. Los depositos de la Formacion Lo Valle, fueron dat... see more
Ernst Kiefer,Mathias J. Dorr,Hillert Ibbeken,Hans-J. Gotze
ABSTRACT. Alluvial fans and their catchments provide joint erosion and sedimentation regions, where exogenic mass transfer can be handled as a finite volume problem. The Arcas Fan in the Andean forearc of Northern Chile, one of the world’s largest alluvia... see more
Luis Aguirre,Joaquin A. Cortes,Diego Morata,Francisco Herve
ABSTRACT. Rocks belonging to various units from the Jurassic to the Neogene were studied in the Chilean Patagonian area between 43 and 46°S. AII these rocks were affected by very low to low grade metamorphism in the zeolite, prehnitepumpellyite and greens... see more
C. Mike Bell,Manuel Suarez
ABSTRACT. The Apeleg Formation is a Lower Cretaceous marine succession of the Aisen Basin of southern Chile. Clastic sediments were deposited in a shallow epicontinental sea in a north-south elongated retroarc basin. This sedimentary basin developed as th... see more
Leopoldo Lopez-Escobar,Mario Vergara
ABSTRACT. The Southern Andes Eocene-Miocene volcanism comprises a series of paleo-volcanic belts striking N-S to N10°E. Along the longitudinal depression of central-south Chile, remnants of this volcanism are distributed between about 33° and 42.5°S. Basa... see more
Ernesto Perez,Renato Reyes
RESUMEN. En este trabajo se discuten las relaciones taxonomicas de los buchotrigonidos con las diversas categorias del orden Trigonioida. Se propone clasificar Buchotrigoniinae a nivel de familia en la superfamilia Myophorellacea, por presentar area ancha... see more
C. Mike Bell
ABSTRACT. An unusual and very distinctive occurrence of evaporitic gypsum in association with clastic turbidites was deposited in a still, anoxic lake environment in the La Coipa area of Northern Chile. The sequence of exceptionally fine-grained, red-colo... see more
El domingo 27 de julio de 1997, tras enfrentar una larga y penosa enfermedad, fallecio en Santiago, nuestro colega Vladimir Covacevich Castex. Aun cuando conociamos su estado, el deceso nos sobrecogio con dolor y sentimiento, como ocurre con quienes, en ... see more