Petrography and mineral chemistry of Escalón meteorite, an H4 chondrite, Mexico
The Escalón meteorite, a crusted mass weighing 54.3 g, was recovered near Zona del Silencio in Escalón, state of Chihuahua, México. The stone is an ordinary chondrite belonging to the high iron group H, type 4. Electron microprobe analyses of olivine (Fa18.1) and pyroxene (Fs16.5), phosphate, plagioclase, opaque phases, matrix and chondrule glasses are presented. The metal phases present are kamacite (6.08%Ni), taenite (31.66%Ni), high nickel taenite (50.01%Ni) and traces of native Cu. The chondrules average apparent diameter measures 0.62 mm. X-ray diffraction pattern shows olivine, pyroxene and kamacite. Alkaline-type glass is found mainly in chondrules. This meteorite is a stage S3, shock-blackened chondrite with weathering grade W0.
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Universidad Nacional Autónoma de México, Instituto de Geología
2010
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oai:scielo:S1026-877420100001000132010-08-23Petrography and mineral chemistry of Escalón meteorite, an H4 chondrite, MexicoReyes-Salas,Adela M.Sánchez-Rubio,GerardoAltuzar-Coello,PatriciaOrtega-Gutiérrez,FernandoFlores-Gutiérrez,DanielCervantes de la Cruz,KarinaReyes,EugenioLinares,Carlos chondrite H4 type electron microprobe analyses Chihuahua México The Escalón meteorite, a crusted mass weighing 54.3 g, was recovered near Zona del Silencio in Escalón, state of Chihuahua, México. The stone is an ordinary chondrite belonging to the high iron group H, type 4. Electron microprobe analyses of olivine (Fa18.1) and pyroxene (Fs16.5), phosphate, plagioclase, opaque phases, matrix and chondrule glasses are presented. The metal phases present are kamacite (6.08%Ni), taenite (31.66%Ni), high nickel taenite (50.01%Ni) and traces of native Cu. The chondrules average apparent diameter measures 0.62 mm. X-ray diffraction pattern shows olivine, pyroxene and kamacite. Alkaline-type glass is found mainly in chondrules. This meteorite is a stage S3, shock-blackened chondrite with weathering grade W0.info:eu-repo/semantics/openAccessUniversidad Nacional Autónoma de México, Instituto de GeologíaRevista mexicana de ciencias geológicas v.27 n.1 20102010-04-01info:eu-repo/semantics/articletext/htmlhttp://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1026-87742010000100013en |
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| author |
Reyes-Salas,Adela M. Sánchez-Rubio,Gerardo Altuzar-Coello,Patricia Ortega-Gutiérrez,Fernando Flores-Gutiérrez,Daniel Cervantes de la Cruz,Karina Reyes,Eugenio Linares,Carlos |
| spellingShingle |
Reyes-Salas,Adela M. Sánchez-Rubio,Gerardo Altuzar-Coello,Patricia Ortega-Gutiérrez,Fernando Flores-Gutiérrez,Daniel Cervantes de la Cruz,Karina Reyes,Eugenio Linares,Carlos Petrography and mineral chemistry of Escalón meteorite, an H4 chondrite, Mexico |
| author_facet |
Reyes-Salas,Adela M. Sánchez-Rubio,Gerardo Altuzar-Coello,Patricia Ortega-Gutiérrez,Fernando Flores-Gutiérrez,Daniel Cervantes de la Cruz,Karina Reyes,Eugenio Linares,Carlos |
| author_sort |
Reyes-Salas,Adela M. |
| title |
Petrography and mineral chemistry of Escalón meteorite, an H4 chondrite, Mexico |
| title_short |
Petrography and mineral chemistry of Escalón meteorite, an H4 chondrite, Mexico |
| title_full |
Petrography and mineral chemistry of Escalón meteorite, an H4 chondrite, Mexico |
| title_fullStr |
Petrography and mineral chemistry of Escalón meteorite, an H4 chondrite, Mexico |
| title_full_unstemmed |
Petrography and mineral chemistry of Escalón meteorite, an H4 chondrite, Mexico |
| title_sort |
petrography and mineral chemistry of escalón meteorite, an h4 chondrite, mexico |
| description |
The Escalón meteorite, a crusted mass weighing 54.3 g, was recovered near Zona del Silencio in Escalón, state of Chihuahua, México. The stone is an ordinary chondrite belonging to the high iron group H, type 4. Electron microprobe analyses of olivine (Fa18.1) and pyroxene (Fs16.5), phosphate, plagioclase, opaque phases, matrix and chondrule glasses are presented. The metal phases present are kamacite (6.08%Ni), taenite (31.66%Ni), high nickel taenite (50.01%Ni) and traces of native Cu. The chondrules average apparent diameter measures 0.62 mm. X-ray diffraction pattern shows olivine, pyroxene and kamacite. Alkaline-type glass is found mainly in chondrules. This meteorite is a stage S3, shock-blackened chondrite with weathering grade W0. |
| publisher |
Universidad Nacional Autónoma de México, Instituto de Geología |
| publishDate |
2010 |
| url |
http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1026-87742010000100013 |
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