Results 21 to 30 of about 13,405 (212)

Mössbauer Study of Weathering Products in Meteorites from the Atacama Desert

Magnetochemistry
During their stay at the surface of the Earth, meteorites undergo terrestrial weathering. In particular, the iron-nickel alloys and iron sulfides that are abundant in many types of meteorites transform into oxides and oxihydroxides (magnetite, maghemite,
Andrew Pyataev, Dilyara Kuzina, Jérôme Gattacceca, Carine Sadaka, Razilia Muftakhetdinova   +4 more
doaj   +1 more source

Organic and volatile elements in the solar system

EPJ Web of Conferences, 2012
Chondrites and comets have accreted primitive materials from the early solar system. Those materials include organics, water and other volatile components.
Remusat L.
doaj   +1 more source

Chondrules in Enstatite Chondrites [PDF]

, 2018
23 pages, 4 figures. Submitted manuscript for a chapter in the book "Chondrules and the protoplanetary disc" (editors : S. Russell, H. C. Connolly Jr, A. N. Krot) to be published by Cambridge University Press in 2018. This version is free to view and download for personal use only.
Jacquet, Emmanuel, Piani, Laurette, Weisberg, Michael   +2 more
openaire   +3 more sources

Origin of Isotopic Diversity among Carbonaceous Chondrites

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   +1 more source

“CY1” Chondrites Produced by Impact Dehydration of the CI Chondrite Parent Body

The Astrophysical Journal Letters
The recently proposed Yamato-type (CY) chondrites share significant similarities with CI chondrites and Ryugu. We present major and trace elemental, Re–Os, and mass-independent Ti, Cr, and Fe isotope data for seven CY chondrites. The elemental data along
Ke Zhu, Nao Nakanishi, Jan Render, Quinn R. Shollenberger, Tetsuya Yokoyama, Akira Ishikawa, Lu Chen   +6 more
doaj   +1 more source

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

Geological Journal, EarlyView.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu, Hongpeng Chen, Chenglu Li, Ye Wang, Tiesheng Li, Rigen Wu, Zengtao Li, Zhichao Song, Xiannan Zhu   +8 more
wiley   +1 more source

The Mobility of Major and Trace Elements in EOC Minerals on Parent Chondrite Bodies

Geosciences
The combined EPMA and SIMS study of the geochemical features of olivine, low-Ca pyroxene and plagioclase in equilibrated ordinary chondrites (EOCs) has revealed the effect of thermal metamorphism on trace element concentrations in EOC silicate minerals ...
Kristina Sukhanova, Sergey Skublov
doaj   +1 more source

The Oxygen Isotopic Composition of Samples Returned from Asteroid Ryugu with Implications for the Nature of the Parent Planetesimal

The Planetary Science Journal, 2023
We present oxygen isotopic analyses of fragments of the near-Earth C _b -type asteroid Ryugu returned by the Hayabusa2 spacecraft that reinforce the close correspondence between Ryugu and CI chondrites.
Haolan Tang, Edward D. Young, Lauren Tafla, Andreas Pack, Tommaso Di Rocco, Yoshinari Abe, Jérôme Aléon, Conel M. O’D. Alexander, Sachiko Amari, Yuri Amelin, Ken-ichi Bajo, Martin Bizzarro, Audrey Bouvier, Richard W. Carlson, Marc Chaussidon, Byeon-Gak Choi, Nicolas Dauphas, Andrew M. Davis, Wataru Fujiya, Ryota Fukai, Ikshu Gautam, Makiko K. Haba, Yuki Hibiya, Hiroshi Hidaka, Hisashi Homma, Peter Hoppe, Gary R. Huss, Kiyohiro Ichida, Tsuyoshi Iizuka, Trevor R. Ireland, Akira Ishikawa, Motoo Ito, Shoichi Itoh, Noriyuki Kawasaki, Noriko T. Kita, Kouki Kitajima, Thorsten Kleine, Shintaro Komatani, Alexander N. Krot, Ming-Chang Liu, Yuki Masuda, Kevin D. McKeegan, Mayu Morita, Kazuko Motomura, Frédéric Moynier, Kazuhide Nagashima, Izumi Nakai, Ann Nguyen, Larry Nittler, Morihiko Onose, Changkun Park, Laurette Piani, Liping Qin, Sara S. Russell, Naoya Sakamoto, Maria Schönbächler, Kentaro Terada, Yasuko Terada, Tomohiro Usui, Sohei Wada, Meenakshi Wadhwa, Richard J. Walker, Katsuyuki Yamashita, Qing-Zhu Yin, Tetsuya Yokoyama, Shigekazu Yoneda, Hiroharu Yui, Ai-Cheng Zhang, Tomoki Nakamura, Hiroshi Naraoka, Takaaki Noguchi, Ryuji Okazaki, Kanako Sakamoto, Hikaru Yabuta, Masanao Abe, Akiko Miyazaki, Aiko Nakato, Masahiro Nishimura, Tatsuaki Okada, Toru Yada, Kasumi Yogata, Satoru Nakazawa, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Yuichi Tsuda, Sei-ichiro Watanabe, Makoto Yoshikawa, Shogo Tachibana, Hisayoshi Yurimoto   +89 more
doaj   +1 more source

Mikrometeorite und ihr Ursprung im Sonnensystem: Außerirdischer Staub zum Anfassen

Physik in unserer Zeit, EarlyView.
Mit einer Größe, die der Dicke eines Haares entspricht, sind Mikrometeorite kaum sichtbar für das bloße Auge. Dennoch werden sie seit etwa 150 Jahren gesammelt, und seit wenigen Jahren sogar auf unseren Hausdächern. Als Kostproben von Asteroiden oder Kometen stellen sie wertvolle Boten unseres Sonnensystems dar.
Jenny Feige
wiley   +1 more source

Рentlandite from ordinary chondrites of the Urals

Литосфера, 2016
Some new data on the chemical composition and morphology of the pentlandite from meteorites Ural (H5-6), Kunashak (L5-6), Ozernoye (L5), Severny Kolchim (H3), Kargapole (H4), and Chelyabinsk (LL5) are resulted in the paper. We found a natural decrease in
Yu. V. Erokhin, S. V. Berzin, V. V. Khiller, K. S. Ivanov   +3 more
doaj   +2 more sources