Halogens in chondritic meteorites and terrestrial accretion
نویسندگان
چکیده
منابع مشابه
Weathering of Chondritic Meteorites
Meteorites are frequently not the pristine record of early solar system processes that we would like them to be. Many unique meteorites, samples that can further our understanding of the environment of the early solar system, are finds, so a knowledge of terrestrial weathering becomes a requirement to accurately interpret their preterrestrial history. This chapter outlines the weathering proces...
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The terrestrial age, or the terrestrial residence time of a meteorite, together with its exposure history provides us with useful insight into the history of the meteorite. It is easy to observe that stony meteorites can weather quickly in humid environments. However, we find that large numbers of meteorites found in semi-arid and arid environments can survive for much longer times. Meteorites ...
متن کاملThe rhodium, silver and indium content of some chondritic meteorites
Ah&act-By neutron activation analysis the rhodium, silver and indium oontent of five chondritic meteorites has been determined. The average data are 0.186 and 0.094 p.p.m. for rhodium and silver. The upper limit for the indium content is 0.001 p.p.m. The values for rhodium and silver are in fair agreement with the data estimated by SUESS and UREY; the indium values, however, are lower by a fact...
متن کاملShock Wave Equations of State of Chondritic Meteorites
We have obtained shock compression data for Murchison and Bruderheim chondritic meteorites. Data for Murchison suggest that the Hugoniot states are described by a smooth curve to >_90 GPa. having po = 2.656 Mg/m 3 . Kso = 24.2±.7 GPa, K'= 4.17±. 10, and constant y = 1.0. The data for Bruderheim suggest more complicated behavior. A mineral mixture model consistent with the Bruderheim data sugges...
متن کاملIsotopic Analyses of Barium in Meteorites and in Terrestrial Samples
Isotopic compos•tien and concentration of barium in six stone meteorites and the silicate inclusions of two iron meteorites and three terrestrial samples were measured by use of a 'double spike' isotopic dilution technique in order to correct for laboratory fractionation. Any differences between the abundances of the isotopes in meteoritic and terrestrial Ba were found to be less than 0.1% for ...
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ژورنال
عنوان ژورنال: Nature
سال: 2017
ISSN: 0028-0836,1476-4687
DOI: 10.1038/nature24625