Results 81 to 90 of about 1,225 (202)

Nuclear chemistry and geochemistry research. Carnegie Institute of Technology and Carnegie--Mellon University. Summary report

, 1976
A summary is presented of the activities and results of research in nuclear chemistry, nuclear geochemistry, nuclear cosmochemistry, and other minor areas from 1950 to 1976. A complete listing is given of publications, doctoral dissertations, and reports
Kohman, T. P.
core   +1 more source

Highly Heterogeneous Parent Body of the Rare Andesitic Erg Chech 002 Meteorite Revealed by the Revisited Mn–Cr Isotopic Systematics

The Planetary Science Journal
Erg Chech 002 (EC 002), an andesitic meteorite, has been dated to be the oldest magmatic rock in the solar system. However, controversy has arisen due to inconsistent dating results and isotopic compositions in previous studies, which complicates ...
Bing Yang, Runlian Pang, Qing Wang, Anning Zhang, Wei Du, Liping Qin   +5 more
doaj   +1 more source

History of the Nuclei Important for Cosmochemistry

, 2004
An essential aspect of studying the nuclei important for cosmochemistry is their production in stars. Over the grant period, we have further developed the Clemson/American University of Beirut stellar evolution code. Through use of a biconjugate-gradient
Meyer, Bradley S.
core  

Oxygen Isotope Exchange between Dust Aggregates and Ambient Nebular Gas

The Astrophysical Journal
Meteorites and their components exhibit a diverse range of oxygen isotope compositions, and the isotopic exchange timescale between dust grains and ambient gas is a key parameter for understanding the spatiotemporal evolution of the solar nebula. As dust
Sota Arakawa, Daiki Yamamoto, Lily Ishizaki, Tamami Okamoto, Noriyuki Kawasaki   +4 more
doaj   +1 more source

Boron cosmochemistry interpreted from abundances in mantle xenoliths

, 1984
Recent technical advances have made it possible to measure the abundance of boron in ultramafic xenoliths from alkali basalts thought to be representative of the upper mantle. Such data can provide information on the cosmochemistry of boron, particularly
Shaw, Denis M., Higgins, Michael D.
core  

Chemistry-nuclear chemistry division. Progress report, October 1979-September 1980

, 1981
This report presents the research and development programs pursued by the Chemistry-Nuclear Chemistry Division of the Los Alamos National Laboratory. Topics covered include advanced analytical methods, atmospheric chemistry and transport, biochemistry ...
Ryan, R.R. (comp.)
core   +1 more source

Snapshots of an Evolving Solar Nebula Recorded in Nucleosynthetic Sr and Ba Signatures of Early Condensates

The Astrophysical Journal Letters
The discovery of extreme strontium isotope anomalies ( μ ^84 Sr) in refractory leachates from Allende fine-grained calcium-aluminum-rich inclusions (CAIs) is at odds with long-standing predictions regarding the homogenization of presolar components in ...
R. T. C. Marquez, B. L. A. Charlier, F. L. H. Tissot   +2 more
doaj   +1 more source

Protoplanetary dust: astrophysical and cosmochemical perspectives

, 2010
The first comprehensive overview of planet formation for students and researchers in astronomy, cosmochemistry, laboratory astrophysics and planetary ...
Apai, Dániel, Lauretta, Dante S
core  

Néma 001 AGC paper

Supplementary Tables accompanying the paper "Petrogenesis of Néma 001, an alkali-rich meteorite from the acapulcoite-lodranite parent body" submitted to Advances in Geochemistry and Cosmochemistry in May ...
Tartese, Romain; id_orcid, Earth and Environmental Sciences - Academic & Research   +1 more
core   +1 more source

Primordial chemistry from molecules to secondary cosmic microwave background anisotropies

, 2007
International audienceThe chemical history of the early Universe has strong consequences on the formation of the first bound objects and the spectrum of cosmic microwave background anisotropies.
Puy, D., Signore, M.
core   +1 more source