Silicon in iron meteorite metal
نویسندگان
چکیده
منابع مشابه
The Absence of Nickel Isotopic Anomaly in Iron Meteorite Metal and Sulfide
1753. 38th LPSC. 5031 THE ASSEMBLAGE NATIVE COPPER, COBALTIAN KAMACITE, AND TROILITE IN ORDINARY CHONDRITES: DISSOCIATION PRODUCTS NOT RELATED TO A SHOCK EVENT H. Chennaoui Aoudjehane1, A. El Goresy2, and A. Jambon3. 1Universite Hassan II Aln Chock, Laboratoire Geosciences, BP 5366 MaarifCasablanca, Morocco. E-mail: [email protected]. 2Bayerisches Geoinstitut, UniversiUit Bayreuth, 95447 B...
متن کاملSilicon Isotope Fractionation between Silicate and Metal from an Enstatite Meteorite: Implications for Earth’s Core Formation
Introduction: The presence and amount of Si in Earth's core has important implications for models of the processes and chemistry of core segregation. A metal core containing 5 to 7 wt. % Si can be produced when assuming continuous accretion and equili-bration along the silicate liquidus terminating at ~35 GPa and ~3,000 K, and with a concomitant increase in fO 2 from 4 to 2 log units below IW [...
متن کاملButler, missouri: an unusual iron meteorite.
The Butler iron meteorite has been found to have, with respect to other iron meteorites, an unusually high cobalt content (1.4 percent by weight), unusually high germanium contents in the kamacite and the taenite phases, and an unusually low cooling rate (0.5 degrees C/10(6) years). It is suggested that Butler formed in a different environment from that of the rest of the iron meteorites.
متن کاملMagnetic Anisotropy in Silicon Iron
The first anisotropy constant for Fel-%Si, is determined by torque measurements, for x up to 10 atomic per cent, in the temperature range 21-300 OK. The values, as extrapolated to 0 OK, vary linearly with silicon content. Using the expressions obtained by Keffer and Oguchi it is shown that K1 at 0 OK should vary as { 1 (a + 2) x ) where a is the ratio of dipole contribution to the total value o...
متن کاملNoble Gas Measurements of the Grant Iiiab Iron Meteorite
Introduction: In contrast to stony meteorites, which have exposure ages usually not higher than a few tens of million years, most iron meteorites exhibit cosmic-ray exposures of hundreds of million years. Consequently, iron meteorites have collected information about the solar system, encoded in cosmogenic nuclides, for much longer than stony meteorites. Iron meteorites are therefore indispensa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Meteoritics & Planetary Science
سال: 2011
ISSN: 1086-9379
DOI: 10.1111/j.1945-5100.2011.01239.x