NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 1 of 32111
Radiogenic Xenon-129 in Silicate Inclusions in the Campo Del Cielo Iron Meteorite
Offline Availability: Go to Request Form
Author and Affiliation:
Meshik, A.(Washington Univ., McDonnell Center for the Sciences and Physics Depts., Saint Louis, MO, United States)
Kurat, G.(Naturhistorisches Museum, Vienna, Austria)
Pravdivtseva, O.(Washington Univ., McDonnell Center for the Sciences and Physics Depts., Saint Louis, MO, United States)
Hohenberg, C. M.(Washington Univ., McDonnell Center for the Sciences and Physics Depts., Saint Louis, MO, United States)
Abstract: Iron meteorites present a challenge for the I-Xe dating technique because it is usually the inclusions, not metal, that contain radiogenic xenon and iodine. Silicate inclusions are frequent in only types IAB and IIE, and earlier studies of irons have demonstrated that I-Xe system can survive intact in these inclusions preserving valuable age information. Our previous studies of the I-Xe record in pyroxene grains from Toluca iron suggested an intriguing relationship between apparent I-Xe ages and (Mg+Fe)/Fe ratios. The I-Xe system in K-feldspar inclusions from Colomera (IIE) had the fingerprint of slow cooling, with an indicated cooling rate of 2-4 C/Ma. Here we present studies of the iodine-xenon system in a silicate-graphite-metal (SiGrMet) inclusion of the IA Campo del Cielo iron meteorite from the collection of the Museum of Natural History in Vienna.
Publication Date: Jan 01, 2004
Document ID:
20040062428
(Acquired May 22, 2004)
Subject Category: LUNAR AND PLANETARY SCIENCE AND EXPLORATION
Document Type: Conference Paper
Publication Information: Lunar and Planetary Science XXXV: Achondrite Mishmash; (LPI-Contrib-1197); (SEE 20040062421)
Contract/Grant/Task Num: NAG5-12776
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Austrian Science Fund; Vienna, Austria
Organization Source: Washington Univ.; McDonnell Center for the Sciences and Physics Depts.; Saint Louis, MO, United States
Description: 2p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution under U.S. Government purpose rights
NASA Terms: XENON 129; SILICATES; INCLUSIONS; RADIOGENIC MATERIALS; IRON METEORITES; METEORITIC COMPOSITION; TIME MEASUREMENT; PYROXENES; IODINE; GRAPHITE; CHRONOLOGY
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: September 30, 2017
Contact Us