Results 41 to 50 of about 5,269 (213)

Kivesvaara C2 chondrite: silicate petrography and chemical composition [PDF]

Bulletin of the Geological Society of Finland, 1983
Fragments of the Kivesvaara meteorite were said to have been found in Paltamo, northern Finland in 1968. The chemical and mineral composition and the textural features show that this meteorite is a rare C2 carbonaceous chondrite.
K.A. Kinnunen, R. Saikkonen
doaj   +1 more source

THE Formation of chondrule-like particles in RF discharge plasma

Physical Sciences and Technology, 2023
Chondrules are fundamental components of chondritic meteorites and play a vital role in understanding the formation of the early solar system. This study focuses on the synthesis of chondrule-like particles in a plasma environment using a radiofrequency
Assan Abdirakhmanov, Madina Dauylbayeva, Baglan Kyrykbay, Akdaulet Baikaliyev, Sagi Orazbayev, Almasbek Utegenov, Maratbek Gabdullin, Tlekkabul Ramazanov, Didar Batryshev   +8 more
doaj   +1 more source

Evolution of oxygen isotopic composition in the inner solar nebula

, 2005
Changes in the chemical and isotopic composition of the solar nebula with time are reflected in the properties of different constituents that are preserved in chondritic meteorites. CR carbonaceous chondrites are among the most primitive of all chondrite
Aleon J., Alexander N. Krot, Cassen P., Catanzaro E., Desch S. J., Edward R. D. Scott, Guy Libourel, Hisayoshi Yurimoto, Ian D. Hutcheon, Jeffrey N. Cuzzi, Jerome Aleon, Kevin D. McKeegan, Klerner S., Kobayashi S., Krot A. N., Krot A. N., Krot A. N., Krot A. N., Krot A. N., Krot A. N., Lee T., MacPherson G. J., Marc Chaussidon, Marhas K. K., Marhas K. K., McKeegan K. D., McKeegan K. D., Michael I. Petaev, Scott E. R. D., Weidenschilling S. J., Woolum D. S.   +30 more
core   +1 more source

Shock-Wave Heating Model for Chondrule Formation: Prevention of Isotopic Fractionation [PDF]

, 2006
Chondrules are considered to have much information on dust particles and processes in the solar nebula. It is naturally expected that protoplanetary disks observed in present star forming regions have similar dust particles and processes, so study of ...
Blandford R. D., Finocchi F., Hitoshi Miura, Hood L. L., Jones R. H., Nelson V. E., Rubin A. E., Rubin A. E., Rubin A. E., Taishi Nakamoto   +9 more
core   +3 more sources

CI chondrite Oued Chebeika 002 links asteroids Bennu and Ryugu to common parent body

Meteoritics &Planetary Science, EarlyView.
Abstract CI chondrites are a compositionally primitive group of meteorites that have undergone extensive aqueous alteration, providing insights into the evolution of primitive planetesimals. Oued Chebeika 002 is the most pristine CI chondrite to date.
Megan Broussard, Katharina Lodders, Paul K. Carpenter, Piers Koefoed, Karen Ziegler, Kunihiko Nishiizumi, Marc W. Caffee, Laurence A. J. Garvie, Ryan C. Ogliore, Anthony J. Irving, Bradley L. Jolliff, Kun Wang   +11 more
wiley   +1 more source

Chondrule size and related physical properties: a compilation and evaluation of current data across all meteorite groups

, 2014
The examination of the physical properties of chondrules has generally received less emphasis than other properties of meteorites such as their mineralogy, petrology, and chemical and isotopic compositions.
Biltz, Alison E., Corbett, Bernadette M., Ebel, Denton S., Friedrich, Jon M., Iotzov, Ivan V., Khan, Wajiha S., Weisberg, Michael K., Wolman, Matthew D.   +7 more
core   +1 more source

Ryugu Reference Project: Recommendations from the Measurement Definition Team

Meteoritics &Planetary Science, EarlyView.
Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama, Guillaume Avice, Henner Busemann, Nicolas Dauphas, Daniel P. Glavin, Ashley J. King, Thorsten Kleine, Katharina Lodders, Frederic Moynier, Maria Schönbächler, Yoshinori Takano, Kun Wang, Hikaru Yabuta, Yuma Enokido, Ryota Fukai, Shogo Tachibana, Tomohiro Usui   +16 more
wiley   +1 more source

Isheyevo Meteorite: Genetic link between CH and CB chondrites? [PDF]

, 2006
Based on the mineralogy, petrography, bulk chemical, oxygen, and nintrogen isotopic compositions and 40Ar-39Ar age, Isheyevo is genetically related to CH and CB carbonaceous chondrites and provides a link between these group of pristine ...
Brandstätter, F., Franchi, I.A., Ivanova, M.A., Kononkova, N.N., Korochantseva, E.V., Krot, A.N., Trieloff, M., Verchovsky, A.B.   +7 more
core  

The effect of terrestrial weathering on the mineralogy and petrologic (sub)types of CM chondrites explored by kinetic modeling and laboratory experiments

Meteoritics &Planetary Science, EarlyView.
Abstract Terrestrial weathering alters the chemical and isotopic composition, and mineralogy, of meteorites; its effects on ordinary chondrites are well‐studied, but relatively little is known about the susceptibility of carbonaceous chondrites. We combined laboratory experiments, whereby Chwichiya 002 (C3‐ung find), Murchison (CM2 fall) and Kolang ...
Robin L. Haller, Martin R. Lee, Mark E. Hodson   +2 more
wiley   +1 more source

How to form planetesimals from mm-sized chondrules and chondrule aggregates [PDF]

Astronomy & Astrophysics, 2015
The size distribution of asteroids and Kuiper belt objects in the solar system is difficult to reconcile with a bottom-up formation scenario due to the observed scarcity of objects smaller than $\sim$100 km in size. Instead, planetesimals appear to form top-down, with large $100-1000$ km bodies forming from the rapid gravitational collapse of dense ...
Daniel Carrera, Anders Johansen, Melvyn B. Davies   +2 more
openaire   +2 more sources