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Type: Artigo de periódico
Title: A possible tektite strewn field in the Argentinian pampa
Author: Bland, PA
de Souza, CR
Jull, AJT
Kelley, SP
Hough, RM
Artemieva, NA
Pierazzo, E
Coniglio, J
Pinotti, L
Evers, V
Kearsley, AT
Abstract: Impact glass associated with 11 elongate depressions in the Pampean Plain of Argentina, north of the city of Rio Cuarto, was suggested to be proximal ejecta related to a highly oblique impact event. We have identified about 400 additional elongate features in the area that indicate an aeolian, rather than an impact, origin. We have also dated fragments of glass found at the Rio Cuarto depressions; the age is similar to that of glass recovered 800 kilometers to the southeast. This material may be tektite glass from an impact event around 0.48 million years ago, representing a new tektite strewn field.
Country: EUA
Editor: Amer Assoc Advancement Science
Rights: fechado
Identifier DOI: 10.1126/science.1068345
Date Issue: 2002
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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