Late Neogene lacustrine record and paleogeography in the Quillagua-Llamara basin, Central Andean fore-arc (Northern Chile)

The Cenozoic Quillagua-Llamara basin (northern Chile, Central Andes) is an asymmetrical, intramassif fore-arc basin with a relatively wide northern sector separated from a narrower southward extension by a basement threshold. The north- ern sector was characterised by a noticeable Oligocene?-late Ne...

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Detalles Bibliográficos
Autores: Sáez, Alberto, Cabrera, Lluís, Jensen, A., Chong, Guillermo
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:1999
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/34428
Acceso en línea:https://hdl.handle.net/2445/34428
Access Level:acceso abierto
Palabra clave:Sediments lacustres
Neogen
Xile
Andes (Regió)
Lake sediments
Neogene
Chile
Andes Region
Descripción
Sumario:The Cenozoic Quillagua-Llamara basin (northern Chile, Central Andes) is an asymmetrical, intramassif fore-arc basin with a relatively wide northern sector separated from a narrower southward extension by a basement threshold. The north- ern sector was characterised by a noticeable Oligocene?-late Neogene alluvial-fan and lacustrine dominated deposition which resulted in sequences up to 900 m thick, whereas the southern sector was often a bypass zone with thinner fluvial and lacustrine sediment accumulation.