Petrography, composition, and origin of large, chromian spinels from the Murchison meteorite

Large, Relict, Chromian Spinels in Allende: a Link to Murchison?

Dual Isotopic Composition of Methane in Murchison Meteorite

Introduction: Examining the record contained within the organic matter in meteorites can reveal the nature of the inputs and processes that contributed to the early solar system environment. Specifically, isotopic measurements for individual organic compounds can reveal the reaction mechanisms and possible source environments from which the organic constituents were formed. Hydrogen isotopic me...

Murchisite, Cr5S6, a new mineral from the Murchison meteorite

Murchisite (IMA 2010-003), Cr5S6, is a new chromium sulfide mineral, discovered in the Murchison CM2 meteorite. The type material occurs as one subhedral crystal (1.3 × 4 mm in size) in contact with low-Ni iron (“kamacite”), martensitic iron, schreibersite, and a Ca-,Al-rich glass, all of which are included in an isolated forsteritic olivine grain in the meteorite’s matrix. The mean chemical co...

More Interstellar Exposure Ages of Large Presolar Sic Grains from the Murchison Meteorite

MURCHISON METEORITE. F. Gyngard 1 , J. N. Ávila 2,3 , T. R. Ireland 2,3 , and E. Zinner 1 , 1 Laboratory for Space Sciences and Department of Physics, [email protected], Washington University, St. Louis, MO 63130, USA, 2 Research School of Earth Sciences, The Australian National University, Canberra ACT 0200, Australia, 3 Planetary Science Institute, The Australian National University, Canberr...

Extraterrestrial nucleobases in the Murchison meteorite

Article history: Carbon-rich meteorites, car Received 26 October 2007 Received in revised form 7 March 2008 Accepted 11 March 2008 Available online 20 March 2008 Editor: R.D. van der Hilst