Results 1 to 10 of about 69,839 (285)

Speciation of organosulfur compounds in carbonaceous chondrites [PDF]

Scientific Reports, 2021
Despite broad application of different analytical techniques for studies on organic matter of chondrite meteorites, information about composition and structure of individual compounds is still very limited due to extreme molecular diversity of ...
Alexander Zherebker, Yury Kostyukevich, Dmitry S. Volkov, Ratibor G. Chumakov, Lukas Friederici, Christopher P. Rüger, Alexey Kononikhin, Oleg Kharybin, Alexander Korochantsev, Ralf Zimmermann, Irina V. Perminova, Eugene Nikolaev   +11 more
doaj   +7 more sources

Origin of Isotopic Diversity among Carbonaceous Chondrites [PDF]

The Astrophysical Journal Letters, 2023
Carbonaceous chondrites are some of the most primitive meteorites and derive from planetesimals that formed a few million years after the beginning of the solar system.
Jan L. Hellmann, Jonas M. Schneider, Elias Wölfer, Joanna Drążkowska, Christian A. Jansen, Timo Hopp, Christoph Burkhardt, Thorsten Kleine   +7 more
doaj   +4 more sources

Nanoscale infrared imaging analysis of carbonaceous chondrites to understand organic-mineral interactions during aqueous alteration. [PDF]

Proc Natl Acad Sci U S A, 2019
Significance Spatial relationships between organic matter and minerals are necessary for understanding the formation and evolution of organic matter during aqueous and thermal alteration in their parent bodies, as well as preaccretional history. Infrared
Kebukawa Y, Kobayashi H, Urayama N, Baden N, Kondo M, Zolensky ME, Kobayashi K.   +6 more
europepmc   +5 more sources

The Ni isotopic composition of Ryugu reveals a common accretion region for carbonaceous chondrites. [PDF]

Sci Adv
The isotopic compositions of samples returned from Cb-type asteroid Ryugu and Ivuna-type (CI) chondrites are distinct from other carbonaceous chondrites, which has led to the suggestion that Ryugu/CI chondrites formed in a different region of the ...
Spitzer F, Kleine T, Burkhardt C, Hopp T, Yokoyama T, Abe Y, Aléon J, O'D Alexander CM, Amari S, Amelin Y, Bajo KI, Bizzarro M, Bouvier A, Carlson RW, Chaussidon M, Choi BG, Dauphas N, Davis AM, Di Rocco T, Fujiya W, Fukai R, Gautam I, Haba MK, Hibiya Y, Hidaka H, Homma H, Hoppe P, Huss GR, Ichida K, Iizuka T, Ireland TR, Ishikawa A, Itoh S, Kawasaki N, Kita NT, Kitajima K, Komatani S, Krot AN, Liu MC, Masuda Y, Morita M, Moynier F, Motomura K, Nakai I, Nagashima K, Nguyen A, Nittler L, Onose M, Pack A, Park C, Piani L, Qin L, Russell SS, Sakamoto N, Schönbächler M, Tafla L, Tang H, Terada K, Terada Y, Usui T, Wada S, Wadhwa M, Walker RJ, Yamashita K, Yin QZ, Yoneda S, Young ED, Yui H, Zhang AC, Nakamura T, Naraoka H, Noguchi T, Okazaki R, Sakamoto K, Yabuta H, Abe M, Miyazaki A, Nakato A, Nishimura M, Okada T, Yada T, Yogata K, Nakazawa S, Saiki T, Tanaka S, Terui F, Tsuda Y, Watanabe SI, Yoshikawa M, Tachibana S, Yurimoto H.   +90 more
europepmc   +3 more sources

Arrival and magnetization of carbonaceous chondrites in the asteroid belt before 4562 million years ago. [PDF]

Commun Earth Environ, 2020
Meteorite magnetizations can provide rare insight into early Solar System evolution. Such data take on new importance with recognition of the isotopic dichotomy between non-carbonaceous and carbonaceous meteorites, representing distinct inner and outer ...
O'Brien T, Tarduno JA, Anand A, Smirnov AV, Blackman EG, Carroll-Nellenback J, Krot AN.   +6 more
europepmc   +2 more sources

Analyses of Aliphatic Aldehydes and Ketones in Carbonaceous Chondrites. [PDF]

ACS Earth Space Chem, 2019
Aliphatic aldehydes and ketones are essential building blocks for the synthesis of more complex organic compounds. Despite their potentially key role as precursors of astrobiologically important molecules, such as amino acids and carboxylic acids, this ...
Aponte JC, Whitaker D, Powner MW, Elsila JE, Dworkin JP.   +4 more
europepmc   +2 more sources

Thermal alteration of labile elements in carbonaceous chondrites [PDF]

, 2018
Carbonaceous chondrite meteorites are some of the oldest Solar System planetary materials available for study. The CI group has bulk abundances of elements similar to those of the solar photosphere.
Alessondra Springmann, D. S. Lauretta, Bjoern Klaue, Y. S. Goreva, Joel D. Blum, Alexandre V. Andronikov, Jordan K. Steckloff   +6 more
openalex   +3 more sources

Origin of isolated olivine grains in carbonaceous chondrites [PDF]

Meteoritics and Planetary Science, 2020
We report microscopic, cathodoluminescence, chemical, and O isotopic measurements of FeO‐poor isolated olivine grains (IOG) in the carbonaceous chondrites Allende (CV3), Northwest Africa 5958 (C2‐ung), Northwest Africa 11086 (CM2‐an), and Allan Hills ...
Emmanuel Jacquet, Maxime Piralla, Pauline Kersaho, Yves Marrocchi   +3 more
openalex   +3 more sources

Impact-induced sublimation drives volatile depletion in carbonaceous meteorites [PDF]

Nature Communications
Carbonaceous chondrites are amongst the most chemically primitive solid materials in the Solar System, yet many are depleted in moderately volatile elements.
Zheng-Yu Long, Frederic Moynier, Tim F. J. Bögels, Linru Fang, Razvan Caracas, Marine Paquet, Fred Jourdan, Tu-Han Luu, Dimitri Rigoussen, Kun-Feng Qiu, Jun Deng, James M. D. Day   +11 more
doaj   +2 more sources

Impact-driven oxidation of organics explains chondrite shock metamorphism dichotomy [PDF]

Nature Communications
Shocked meteorites can be used to probe the dynamics of the early Solar system. Carbonaceous chondrites are less shocked than ordinary chondrites, regardless of the degree of aqueous alteration.
Kosuke Kurosawa, Gareth S. Collins, Thomas M. Davison, Takaya Okamoto, Ko Ishibashi, Takafumi Matsui   +5 more
doaj   +2 more sources