The New Peruvian Meteorite Carancas: Mössbauer Spectroscopy and X-Ray Diffraction Studies

The Carancas meteorite fell on 15 September 2007 approximately 10 km south of Desaguadero, near Lake Titicaca, Peru, producing bright lights, clouds of dust in the sky and intense detonations. The Carancas meteorite is classified as a H4–5 ordinary chondrite with shock stage S3 and a degree of weath...

Full description

Saved in:
Bibliographic Details
Published in:Earth, moon, and planets moon, and planets, 2013-02, Vol.110 (1-2), p.1-9
Main Authors: Munayco, P., Munayco, J., Varela, M. E., Scorzelli, R. B.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Astroparticles
Calcium magnesium silicates
Chondrites
Diffraction
Diopside
Iron oxides
Kamacite
Magnetism
Metal particles
Meteorites
Meteors & meteorites
Mossbauer spectroscopy
Observations and Techniques
Olivine
Phases
Physics
Physics and Astronomy
Planetology
Pyroxenes
Quadrupoles
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Spectra
Spectroscopy
Spectrum analysis
Troilite
Weathering
X-ray diffraction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Carancas meteorite fell on 15 September 2007 approximately 10 km south of Desaguadero, near Lake Titicaca, Peru, producing bright lights, clouds of dust in the sky and intense detonations. The Carancas meteorite is classified as a H4–5 ordinary chondrite with shock stage S3 and a degree of weathering W0. The Carancas meteorite is characterized by well defined chondrules composed either of olivine or pyroxene. The Mössbauer spectra show an overlapping of paramagnetic and magnetic phases. The spectra show two quadrupole doublets associated to olivine and pyroxene; and two magnetic sextets, associated with the primary phases kamacite/taenite and Troilite (Fe 2+ ). Metal particles were extracted from the bulk powdered samples exhibit only kamacite and small amounts of the intergrowth tetrataenite/antitaenite. X-Ray diffractogram shows the primary phases olivine, pyroxene, troilite, kamacite, diopside and albite. Iron oxides has not been detected by Mössbauer spectroscopy or XRD as can be expected for a meteorite immediately recovered after its fall.
ISSN:0167-9295
1573-0794
DOI:10.1007/s11038-012-9406-y