Solar noble gases in Vigarano bulk minerals – First results of the new ’BENGEL’ in-vacuo etching facility
نویسنده
چکیده
منابع مشابه
On line etching of bulk EH5 St. Mark’s – Radiogenic and subsolar noble gases
Introduction: On line etching is very useful to analyse noble gas components such as “Q” or the solar wind [1, 2]. A bulk meteorite sample, however, has never been analysed by on line etching in order to characterise its complete noble gas inventory. Experiment: The aim of this ongoing study is to analyse noble gases in a bulk sample of the EH5 chondrite St. Mark’s by on line etching (conc. HF)...
متن کاملNoble gases from the interstellar medium trapped on the MIR space station and analyzed by in vacuo etching
TRAPPED ON THE MIR SPACE STATION AND ANALYZED BY IN VACUO ETCHING. H. Busemann, F. Bühler, Y.N. Agafonov, H. Baur, P. Bochsler, N.A. Eismont, V.S. Heber, R. Wieler and G.N. Zastenker. Physikalisches Institut, University of Bern, Switzerland. IKI, Russian Academy of Sciences, Moscow, Russia. Earth Sciences, ETH Zurich, Switzerland. Present addresses: Email: [email protected]. DTM, Carnegie I...
متن کاملSubsolar Noble Gases in an Acid-resistant Residue of the Eh5 Chondrite St
Introduction: Enstatite chondrites have remarkable properties: they were formed in a reducing environment, they are putatively similar to precursor material of Earth, Venus, or Mercury, have a terrestrial oxygen isotopic composition and an uncommon noble gas signature [1-5]. Trapped noble gases in Echondrites are intermediate between solar and chondritic composition and consist of two component...
متن کاملPreliminary Genesis Bulk Solar Wind Ar, Kr, and Xe Abundances in Comparison to Young Lunar Regolith and Solar Photosphere Data
Introduction: A major objective of GENESIS is to constrain the present day solar wind (SW) Ar, Kr, and Xe isotopic and elemental compositions by direct measurements of SW irradiated artificial samples [1]. Due to the low abundances of heavy noble gases in the SW, until now these compositions could only be inferred from regolith samples which were irradiated by the SW over large time spans [e.g....
متن کاملSolar Abundances of the Elements
The isotopic compositions of noble gases in the solar wind show high enrichments of light isotopes. When corrected for mass fractionation all five noble gases there can be resolved in terms of the two primitive noble gas components that have been identified in planetary solids. Reasons are presented for assigning the fractionation to a solar process that selectively enriches lighter nuclei at t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004