Quantitative models for the elemental and isotopic fractionations in chondrites: The carbonaceous chondrites

CMOD Alexander - Geochimica et Cosmochimica Acta, 2019 - Elsevier
A quantitative understanding of the elemental and isotopic fractionations recorded in the
compositions of the chondritic meteorites would provide fundamental constraints for …

Quantitative models for the elemental and isotopic fractionations in the chondrites: The non-carbonaceous chondrites

CMOD Alexander - Geochimica et Cosmochimica Acta, 2019 - Elsevier
Two models that for the first time attempt to quantitatively reproduce the bulk elemental and
isotopic fractionations amongst the non-carbonaceous chondrites (non-CCs) are explored …

The compositional classification of chondrites—I. The carbonaceous chondrite groups

GW Kallemeyn, JT Wasson - Geochimica et Cosmochimica Acta, 1981 - Elsevier
Twenty carbonaceous chondrites were analyzed by instrumental and radiochemical neutron
activation analysis for Na, Mg, Al, K, Ca, Sc, V. Cr, Mn. Fe, Co, Ni, Zn, Ga, Ge, As, Se. Br. Ru …

Carbonate abundances and isotopic compositions in chondrites

CMOD Alexander, R Bowden, ML Fogel… - … & Planetary Science, 2015 - Wiley Online Library
We report the bulk C abundances, and C and O isotopic compositions of carbonates in 64
CM chondrites, 14 CR chondrites, 2 CI chondrites, LEW 85332 (C2), Kaba (CV 3), and …

The compositional classification of chondrites: III. Ungrouped carbonaceous chondrites

GW Kallemeyn, JT Wasson - Geochimica et Cosmochimica Acta, 1982 - Elsevier
Abstract Seven carbonaceous chondrites (Allan Hills A77307, Adelaide, Al Rais, Coolidge,
Grosnaja, Karoonda and Renazzo) with uncertain classifications were analyzed by …

Origin of volatile element depletion among carbonaceous chondrites

JL Hellmann, T Hopp, C Burkhardt, T Kleine - Earth and Planetary Science …, 2020 - Elsevier
Compared to the composition of CI chondrites and the Sun, all other carbonaceous
chondrites are variably depleted in volatile elements. However, the origin of these …

Hydrogen isotope evidence for the origin and evolution of the carbonaceous chondrites

JM Eiler, N Kitchen - Geochimica et cosmochimica acta, 2004 - Elsevier
We present new hydrogen isotope data for separated matrix, hydrated chondrules, and other
hydrated coarse silicate fragments from nine carbonaceous chondrites. These data were …

Carbon and nitrogen in carbonaceous chondrites: Elemental abundances and stable isotopic compositions

VK Pearson, MA Sephton, IA Franchi… - … & Planetary Science, 2006 - Wiley Online Library
We have undertaken a comprehensive study of carbon and nitrogen elemental abundances
and isotopic compositions of bulk carbonaceous chondrites. A strategy of multiple analyses …

Variations in the O-isotope composition of gas during the formation of chondrules from the CR chondrites

DL Schrader, K Nagashima, AN Krot, RC Ogliore… - … et Cosmochimica Acta, 2014 - Elsevier
To better understand the environment of chondrule formation and constrain the O-isotope
composition of the ambient gas in the Renazzo-like carbonaceous (CR) chondrite chondrule …

The NC-CC isotope dichotomy: Implications for the chemical and isotopic evolution of the early Solar System

KR Bermingham, E Füri, K Lodders, B Marty - Space science reviews, 2020 - Springer
Understanding the formation of our planetary system requires identification of the materials
from which it originated and the accretion processes that produced the planets. The …