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Derek J. Weller, María Eugenia de Porras, Antonio Maldonado, César Méndez, Charles R. Stern
Pág. 229 - 248
Sediment cores from lakes and bogs in the Río Cisnes valley contain tephra from explosive eruptions of
volcanoes in the southern part of the Andean Southern Volcanic Zone (SSVZ). These tephra, which thicken and coarsen
to the west, are attributed to erup...
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Juan-Luis García,Jorge A. Strelin,Rodrigo M. Vega,Brenda L. Hall,Charles R. Stern
Pág. 190 - 212
The late-glacial sedimentologic and geomorphic record of the former Patagonian ice sheet remains mostly unstudied despite the fact that it affords invaluable evidence for glaciologic processes during the last glacial-interglacial transition (i.e., 18-11....
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Charles R. Stern,Ricardo Floody,Domingo Espineira
Pág. 1 - 22
Mafic Mg-olivine (Fo88)+hornblende lamprophyre dikes, with Ni ~190 ppm and Cr ~390 ppm, cut late Miocene lavas in the Quebrada los Sapos a few kilometers west of the El Teniente Cu-Mo mine. These dikes have petrochemical affinities with other less primit...
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Charles R. Stern,Patricio I. Moreno,Rodrigo Villa-Martinez,Esteban A. Sagredo,Alfredo Prieto,Rafael Labarca
Pág. 82 - 97
Newly described outcrops, excavations and sediment cores from the region of Última Esperanza, Magallanes, contain tephra derived from the large late-glacial explosive R1 eruption of the Reclús volcano in the Andean Austral Volcanic Zone. New radiocarbon ...
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Mauricio Mella,Jorge Munoz,Mario Vergara,Erik Klohn,Lang Farmer,Charles R. Stern
Pág. 131 - 154
The Tronador Volcanic Group (TVG) is located in the transition between the central and southern segment of the Andean Southern Volcanic Zone (SVZ), »50 km to the east of the current volcanic front. The TVG includes, from older to younger, the deeply erod...
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Charles R. Stern
Pág. 161 - 206
The Andean volcanic arc includes over 200 potentially active Quaternary volcanoes, and at least 12 giant caldera/ignimbrite systems, occurring in four separate segments referred to as the Northern, Central, Southern and Austral Volcanic Zones. Volcanism ...
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Jose A. Naranjo,Charles R. Stern
Pág. 225 - 240
Tephra deposits exposed in road-cuts in both Chile and Argentina between approximately 42°30' to 45°S preserve evidence of four small (VEI <3 and volume <0.15 km3) and seven medium size (VEI = 3-5 and volume between 0.15 to 1 km3), or possibly larg...
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Rolf Kilian,Miriam Hohner,Harald Biester,Hans J. Wallrabe-Adams,Charles R. Stern
Pág. 32 - 37
Peat and lake sediment cores from Peninsula Muñoz Gamero in the southernmost Main Andean Cordillera, and also Seno Skyring fjord and Peninsula Brunswick in the Andean foothills, have been investigated to refine the local Holocene tephrochronology. New 14...
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Jorge Munoz,Rosa Troncoso,Paul Duhart,Pedro Crignola,Lang Farmer,Charles R. Stern
Pág. 177 - 203
The mid-Tertiary Coastal Magmatic Belt in south-central Chile, which crops out both in the Central Valley and, south of 41°S, in the Coastal Cordillera as far west as the Pacific coast, formed when the locus of Andean magmatic activity expanded, both to ...
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Charles R. Stern,M. Alexandra Skewes
Pág. 261 - 272
ABSTRACT. At the northern end of the Andean Southern Volcanic Zone (NSVZ; 33-34°S), subduction angle decreased and the magmatic arc migrated eastward to its present location along the Andean drainage divide during the Pliocene. Prior to arc migration, th...
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