Results 21 to 30 of about 1,707 (189)
Chondrules in Enstatite Chondrites [PDF]
, 2018 23 pages, 4 figures. Submitted manuscript for a chapter in the book "Chondrules and the protoplanetary disc" (editors : S. Russell, H. C. Connolly Jr, A. N. Krot) to be published by Cambridge University Press in 2018. This version is free to view and download for personal use only.
Jacquet, Emmanuel +2 more
openaire +3 more sources
Study of the Extraterrestrial Materials at Antarctica, III : On the Yamato Meteorites
Antarctic Record, 1973 Antarctica is thought to be the most suitable place for searching extraterrestrial materials. Since 1965, we have been studying microtektite and cosmic dust in Antarctica.
Masako SHIMA +2 more
doaj +1 more source
The Planetary Science Journal, 2023 The Didymos binary asteroid was the target of the Double Asteroid Redirection Test (DART) mission, which intentionally impacted Dimorphos, the smaller member of the binary system.
Andrew S. Rivkin +19 more
doaj +1 more source
New carbonaceous chondrite Northwest Africa 11781 (CM2)
Литосфера, 2019 Research subject. The article presents the results of a study of a new meteorite Northwest Africa 11781.Material and methods. The material for the study was a fragment of a meteorite weighing 15.56 g, from which 4 transparent polished sections with a ...
K. A. Dugushkina, S. V. Berzin
doaj +1 more source
Mikrometeorite und ihr Ursprung im Sonnensystem: Außerirdischer Staub zum Anfassen
Physik in unserer Zeit, EarlyView.Mit einer Größe, die der Dicke eines Haares entspricht, sind Mikrometeorite kaum sichtbar für das bloße Auge. Dennoch werden sie seit etwa 150 Jahren gesammelt, und seit wenigen Jahren sogar auf unseren Hausdächern. Als Kostproben von Asteroiden oder Kometen stellen sie wertvolle Boten unseres Sonnensystems dar.
Jenny Feige
wiley +1 more source
An Almahata Sitta EL3 fragment: implications for the complex thermal history of enstatite chondrites
Progress in Earth and Planetary Science, 2021 Almahata Sitta is a polymict breccia, consisting of many kinds of clasts. Here we present our mineralogical and petrological results on an EL3 fragment, MS-177 from Almahata Sitta.
M. Kimura +4 more
doaj +1 more source
Peixe Zircon as a Quality Control Reference Material in U‐Pb Geochronology by LA‐ICP‐MS
Geostandards and Geoanalytical Research, EarlyView.Key Points Peixe#0 zircon was characterised for U‐Pb geochronology using CA‐ID‐TIMS, SIMS and a long‐term LA‐ICP‐MS data set. The consistent results establish Peixe#0 as a reference material for U‐Pb quality control. Trace element heterogeneity requires careful, CL‐guided spot selection.
Margareth Sugano Navarro +7 more
wiley +1 more source
Transmission electron microscopy analysis of shock veins in the meteorite Jesenice
GeologijaMeteorite Jesenice is a weakly (S3) shocked ordinary chondrite from Slovenia. The shock event was violent enough to cause localized partial melting of the meteorite and the formation of shock veins.
Bojan Ambrožič +2 more
doaj +1 more source
Iridium anomaly in the cretaceous-paleogene boundary at Højerup (Stevns Klint, Denmark) and Woodside Creek (New Zealand): The question of an enormous proportion of extraterrestrial component [PDF]
Journal of the Serbian Chemical Society, 2012 The Cretaceous-Paleogene boundary clays at Højerup and Woodside Creek show anomalous enrichments of iridium compared with the marine sedimentary rocks.
Premović Pavle I. +2 more
doaj +1 more source
Geostandards and Geoanalytical Research, EarlyView.Key Points We recommend using the notation δ122/118SnNIST SRM 3161a for mass‐dependent Sn isotope data. We derived conversion factors relative to NIST SRM 3161a for Puri Sn CEZA (0.132 ± 0.011‰), Sn Lyon (0.229 ± 0.016‰), Sn IPGP (0.162 ± 0.018‰). Tin isotope compositions are presented for SPEX CertiPrep Sn and nine USGS reference materials.
Aurélia C.E. Meister +10 more
wiley +1 more source