scholarly journals A light, chondritic xenolith in the Murchison (CM) chondrite – Formation by fluid-assisted percolation during metasomatism?

Geochemistry ◽  
2019 ◽  
Vol 79 (4) ◽  
pp. 125518 ◽  
Author(s):  
Imene Kerraouch ◽  
Samuel Ebert ◽  
Markus Patzek ◽  
Addi Bischoff ◽  
Michael E. Zolensky ◽  
...  
Keyword(s):  
Cm Chondrite

scholarly journals Carbonate assemblages in Cold Bokkeveld CM chondrite reveal complex parent body evolution

2021 ◽  
Author(s):  
Stefan Farsang ◽  
Ian A. Franchi ◽  
Xuchao Zhao ◽  
Timothy D. Raub ◽  
Simon A.T. Redfern ◽  
...  
Keyword(s):  
Parent Body ◽  
Cm Chondrite

Mineralogy of fine-grained rims in the alh 81002 cm chondrite

2000 ◽  
Vol 64 (19) ◽  
pp. 3263-3273 ◽  
Author(s):  
Dante S Lauretta ◽  
Xin Hua ◽  
Peter R Buseck
Keyword(s):  
Fine Grained ◽  
Cm Chondrite

scholarly journals A primordial 15N-depleted organic component detected within the carbonaceous chondrite Maribo

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Christian Vollmer ◽  
Jan Leitner ◽  
Demie Kepaptsoglou ◽  
Quentin M. Ramasse ◽  
Ashley J. King ◽  
...  
Keyword(s):  
Organic Matter ◽  
Interstellar Medium ◽  
Structural Information ◽  
Carbonaceous Chondrite ◽  
Carbonaceous Chondrites ◽  
Local Interstellar Medium ◽  
Edge Structure ◽  
Electron Energy Loss ◽  
Cm Chondrite ◽  
X Ray Absorption

AbstractWe report on the detection of primordial organic matter within the carbonaceous chondrite Maribo that is distinct from the majority of organics found in extraterrestrial samples. We have applied high-spatial resolution techniques to obtain C-N isotopic compositions, chemical, and structural information of this material. The organic matter is depleted in 15N relative to the terrestrial value at around δ15N ~ -200‰, close to compositions in the local interstellar medium. Morphological investigations by electron microscopy revealed that the material consists of µm- to sub-µm-sized diffuse particles dispersed within the meteorite matrix. Electron energy loss and synchrotron X-ray absorption near-edge structure spectroscopies show that the carbon functional chemistry is dominated by aromatic and C=O bonding environments similar to primordial organics from other carbonaceous chondrites. The nitrogen functional chemistry is characterized by C-N double and triple bonding environments distinct from what is usually found in 15N-enriched organics from aqueously altered carbonaceous chondrites. Our investigations demonstrate that Maribo represents one of the least altered CM chondrite breccias found to date and contains primordial organic matter, probably originating in the interstellar medium.

The Paris meteorite, the least altered CM chondrite so far

2014 ◽  
Vol 124 ◽  
pp. 190-222 ◽  
Author(s):  
Roger H. Hewins ◽  
Michèle Bourot-Denise ◽  
Brigitte Zanda ◽  
Hugues Leroux ◽  
Jean-Alix Barrat ◽  
...  
Keyword(s):  
Cm Chondrite

Primordial and cosmogenic noble gases in the Sutter's Mill CM chondrite

2017 ◽  
Vol 52 (4) ◽  
pp. 669-689 ◽  
Author(s):  
Ryuji Okazaki ◽  
Keisuke Nagao
Keyword(s):  
Noble Gases ◽  
Cm Chondrite

Heating effects of the matrix of experimentally shocked Murchison CM chondrite: Comparison with micrometeorites

2007 ◽  
Vol 42 (1) ◽  
pp. 19-30 ◽  
Author(s):  
Naotaka TOMIOKA ◽  
Kazushige TOMEOKA ◽  
Keiko NAKAMURA-MESSENGER ◽  
Toshimori SEKINE
Keyword(s):  
Heating Effects ◽  
The Matrix ◽  
Cm Chondrite

Refractory inclusions in the prototypical CM chondrite, Mighei

1994 ◽  
Vol 58 (24) ◽  
pp. 5599-5625 ◽  
Author(s):  
Glenn J. MacPherson ◽  
andrew M. Davis
Keyword(s):  
Cm Chondrite
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