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Fernando Guillermo Sardi,Márcia Elisa Boscato Gomes,Silvana Elizabeth Marangone
Pág. 150 - 161
The Reflejos de Mar Li-pegmatite, located in northwestern Argentina, is part of the Villismán pegmatite group, Ancasti District, Pampean Pegmatite Province. Four garnet crystals from the outermost part of the pegmatite were analyzed by major and minor el...
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Sergio F. Vizcaino,M. Susana Bargo,M. Encarnación Pérez,Inés Aramendía,José I. Cuitiño,Eduardo S. Monsalvo,Evangelos Vlachos,Jorge I. Noriega,Richard F. Kay
Pág. 382 - 422
The early-middle Miocene continental Cerro Boleadoras Formation (CBF) crops out in the area of Cerro Boleadoras and Cerro Plomo on the western slope of the Meseta del Lago Buenos Aires, northwestern Santa Cruz Province, Argentina. The lower levels of the...
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Beatriz Coira,Claudia I. Galli,Suzanne Mahlburg Kay,Daniel F. Stockli,Patrocinio Flores,Emilio Eveling
Pág. 208 - 237
Ash-fall tuffs of the Pliocene-Pleistocene deposits of Humahuaca and Casa Grande intermountain basins, northwestern Argentina, have been differentiated into two groups based on new geochemical and geochronological data which correspond to the tuffs of th...
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Juan M. Robledo,Maricel Y. Horn,Claudia I. Galli,Luisa M. Anzótegui
Pág. 418 - 429
The continental sedimentary rocks that constitute the Palo Pintado Formation of the late Miocene from Salta province, presents a great paleoclimatic interest due to the environmental conditions prevailing during this geochronologic interval. The geologic...
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Josefina Carlorosi,Susana B. Esteban,M. Franco Tortello
Pág. 168 - 182
A conodont assemblage recovered from the middle part of the Santa Rosita Formation at Pantipampa (Iruya area, northwestern Argentina) is described herein. It includes Cordylodus angulatus Pander, C. cayesi Druce and Jones, C. lindstromi Druce and Jones, ...
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Clara Eugenia Cisterna, Magdalena Koukharsky, Beatriz Coira, Christina Günter, Horstpeter H. Ulbrich
Pág. 123 - 146
This study is focused on the analysis of volcanic deposits that crop out at the middle portion of the Las
Planchadas range, northern part of the Famatina System in Argentina. These volcanic rocks are records of an Ordovician
effusive basaltic volcanism t...
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Margarita Do Campo, Fernando Nieto, Guillermo L. Albanesi, Gladys Ortega, Rubén Monaldi
Pág. 179 - 212
The thermal post-depositional evolution of metapelitic and metavolcanic rocks of the upper CambrianOrdovician
succession in the Central Andes of northwestern Argentina, was estimated through X ray diffraction of clay
mineral analysis, Kübler Index (KI),...
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Elena Previtera
Pág. 39 - 58
The Neuquén Basin in northwestern Patagonia, Argentina, holds the most important record of Cretaceous
dinosaurs in South America.The Neuquén Group (Upper Cretaceous) is the richest dinosaur-bearing unit of the basin. It
comprises the Río Limay, the Río N...
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Beatriz Coira, Clara E. Cisterna, Horstpeter H. Ulbrich, Umberto G. Cordani
Pág. 105 - 126
The Las Lozas volcanic sequence, which crops out at northwestern border of the Famatina belt-southeastern
Puna, NW Argentina, is constituted mainly by rhyolites and a lesser volume of basalts and trachytes, and volcanoclastic
deposits. These rocks, previ...
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Gonzalo R. Torres, Liliana C. Lupo, Julio J. Kulemeyer, Claudio F. Pérez
Pág. 151 - 165
This paper presents the first palynological record for the dynamics of geoecological belts of the Eastern
Cordillera in northwestern Argentina prior to the Last Glacial Maximum (LGM). The study was carried out on a 5-m
deep sedimentary core raised at Lag...
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