Noble gases in enstatite chondrites II: The trapped component
نویسندگان
چکیده
منابع مشابه
Solar Noble Gases in Enstatite Chondrites and Implications for the Formation of the Terrestrial Planets
Introduction: In a companion abstract [1], we report evidence for tiny amounts of most likely primordial noble gases with solar-like elemental and isotopic composition admixed to Q-type primordial noble gases in an E chondrite. Here, we discuss possible implications of this finding for terrestrial planet formation. The genetic relation of the noble gases in planetary bodies to those in the Sun,...
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Introduction: North West Africa (NWA) 852 and 801 are classified as CR2 chondrites [1-2]. The two meteorites contain relatively large chondrules (1-2 mm in diameter), FeNi metal, and dark inclusions composed of serpentine and olivine. We measured noble gases in the two meteorites with stepwise heating, which facilitates decomposition of noble gas components with different origins and trapping s...
متن کاملSolar noble bases in enstatite chondrites and implications for the formation of the terrestrial planets
The Open University's repository of research publications and other research outputs Solar noble bases in enstatite chondrites and implications for the formation of the terrestrial planets Conference Item
متن کاملThe Trapped Heavy Noble Gases in Recently Found Martian Meteorites
Introduction: Noble gases in Martian meteorites are an important source of our knowledge of composition and evolution of the volatile inventory of Mars [1]. Ancient (ALH 84001), fractionated (nakhlites), and recent atmosphere (shock-produced glass in shergottite EETA 79001) as well as at least one component originating from the interior (Chassigny) have been identified based on analyses of the ...
متن کاملSeparation of Q-Noble gas carrier from bulk carbon in enstatite chondrites by stepped combustion
The nature of the planetary noble gas (PNG) carrier or Q-phase [1] in meteorites is still a subject of discussion. Failure to identify and isolate this carrier since the first successful concentration of it by a factor of ~200 in an Allende HF-HCl residue [1] and establishing it to be carbonaceous in nature [2], led eventually to the so-called “labyrinth” theory [3], according to which PNG init...
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ژورنال
عنوان ژورنال: Meteoritics & Planetary Science
سال: 2002
ISSN: 1086-9379,1945-5100
DOI: 10.1111/j.1945-5100.2002.tb00841.x