[superscript 57]Fe Mössbauer spectroscopy studies of chondritic meteorites from the Atacama Desert, Chile: Implications for weathering processes

Some terrestrial areas have climatic and geomorphologic features that favor the preservation, and therefore, accumulation of meteorites. The Atacama Desert in Chile is among the most important of such areas, known as dense collection areas. This desert is the driest on Earth, one of the most arid, u...

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Main Authors: Munayco, P., Munayco, J., Valenzuela, M., Rochette, P., Scorzelli, R. B., Gattacceca, Jerome
Other Authors: Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Format: Article
Language:English
Published: Springer Netherlands 2017
Online Access:http://hdl.handle.net/1721.1/107152
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author Munayco, P.
Munayco, J.
Valenzuela, M.
Rochette, P.
Scorzelli, R. B.
Gattacceca, Jerome
author2 Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
author_facet Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Munayco, P.
Munayco, J.
Valenzuela, M.
Rochette, P.
Scorzelli, R. B.
Gattacceca, Jerome
author_sort Munayco, P.
collection MIT
description Some terrestrial areas have climatic and geomorphologic features that favor the preservation, and therefore, accumulation of meteorites. The Atacama Desert in Chile is among the most important of such areas, known as dense collection areas. This desert is the driest on Earth, one of the most arid, uninhabitable locals with semi-arid, arid and hyper-arid conditions. The meteorites studied here were collected from within the dense collection area of San Juan at the Central Depression and Coastal Range of Atacama Desert. [superscript 57]Fe Mössbauer spectroscopy was used for quantitative analysis of the degree of weathering of the meteorites, through the determination of the proportions of the various Fe-bearing phases and in particular the amount of oxidized iron in the terrestrial alteration products. The abundance of ferric ions in weathered chondrites can be related to specific precursor compositions and to the level of terrestrial weathering. The aim of the study was the identification, quantification and differentiation of the weathering products in the ordinary chondrites found in the San Juan area of Atacama Desert.
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spelling mit-1721.1/1071522022-09-26T16:49:10Z [superscript 57]Fe Mössbauer spectroscopy studies of chondritic meteorites from the Atacama Desert, Chile: Implications for weathering processes 57Fe Mössbauer spectroscopy studies of chondritic meteorites from the Atacama Desert, Chile: Implications for weathering processes Munayco, P. Munayco, J. Valenzuela, M. Rochette, P. Scorzelli, R. B. Gattacceca, Jerome Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Gattacceca, Jerome Some terrestrial areas have climatic and geomorphologic features that favor the preservation, and therefore, accumulation of meteorites. The Atacama Desert in Chile is among the most important of such areas, known as dense collection areas. This desert is the driest on Earth, one of the most arid, uninhabitable locals with semi-arid, arid and hyper-arid conditions. The meteorites studied here were collected from within the dense collection area of San Juan at the Central Depression and Coastal Range of Atacama Desert. [superscript 57]Fe Mössbauer spectroscopy was used for quantitative analysis of the degree of weathering of the meteorites, through the determination of the proportions of the various Fe-bearing phases and in particular the amount of oxidized iron in the terrestrial alteration products. The abundance of ferric ions in weathered chondrites can be related to specific precursor compositions and to the level of terrestrial weathering. The aim of the study was the identification, quantification and differentiation of the weathering products in the ordinary chondrites found in the San Juan area of Atacama Desert. 2017-02-23T21:59:14Z 2017-02-23T21:59:14Z 2013-02 2013-02 2016-08-18T15:40:32Z Article http://purl.org/eprint/type/JournalArticle 0304-3843 1572-9540 http://hdl.handle.net/1721.1/107152 Munayco, P., J. Munayco, M. Valenzuela, P. Rochette, J. Gattacceca, and R. B. Scorzelli. “57 Fe Mössbauer Spectroscopy Studies of Chondritic Meteorites from the Atacama Desert, Chile: Implications for Weathering Processes.” Hyperfine Interactions 224, no. 1–3 (February 5, 2013): 257–262. en http://dx.doi.org/10.1007/s10751-012-0755-8 Hyperfine Interactions Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. Springer Science+Business Media Dordrecht application/pdf Springer Netherlands Springer Netherlands
spellingShingle Munayco, P.
Munayco, J.
Valenzuela, M.
Rochette, P.
Scorzelli, R. B.
Gattacceca, Jerome
[superscript 57]Fe Mössbauer spectroscopy studies of chondritic meteorites from the Atacama Desert, Chile: Implications for weathering processes
title [superscript 57]Fe Mössbauer spectroscopy studies of chondritic meteorites from the Atacama Desert, Chile: Implications for weathering processes
title_full [superscript 57]Fe Mössbauer spectroscopy studies of chondritic meteorites from the Atacama Desert, Chile: Implications for weathering processes
title_fullStr [superscript 57]Fe Mössbauer spectroscopy studies of chondritic meteorites from the Atacama Desert, Chile: Implications for weathering processes
title_full_unstemmed [superscript 57]Fe Mössbauer spectroscopy studies of chondritic meteorites from the Atacama Desert, Chile: Implications for weathering processes
title_short [superscript 57]Fe Mössbauer spectroscopy studies of chondritic meteorites from the Atacama Desert, Chile: Implications for weathering processes
title_sort superscript 57 fe mossbauer spectroscopy studies of chondritic meteorites from the atacama desert chile implications for weathering processes
url http://hdl.handle.net/1721.1/107152
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