Al-Mg SYSTEMATICS OF WARK-LOVERING RIMS AROUND A REFRACTORY INCLUSION FROM THE NWA 5028 CR2 CHONDRITE

RESOLVED TIME DIFFERENCE BETWEEN CALCIUM-ALUMINUM-RICH INCLUSIONS AND THEIR WARK LOVERING RIMS INFERRED FROM Al-Mg CHRONOLOGY OF TWO INCLUSIONS FROM A CV3 CARBONACEOUS CHONDRITE

Introduction: The refractory Calcium-Aluminumrich Inclusions (CAIs) preserve petrographic and geochemical records of the earliest events that shaped our Solar System. Absolute high-resolution Pb-Pb dating of CAIs has revealed them to be the oldest solids in the Solar System [1-4]. Another useful high-resolution relative dating technique is the Al-Mg short-lived chronometer which has been used e...

Comment on “Valence state of titanium in the Wark–Lovering rim of a Leoville CAI as a record of progressive oxidation in the early Solar Nebula― by K.A. Dyl, J.I. Simon and E.D. Young

Dyl et al. (2011) state that their results confirm the conclusion of J. Simon et al. (2005) that the pyroxene in Wark–Lovering rims (Wark and Lovering, 1977) found on Ca-, Al-rich refractory inclusions has lower Ti/Ti ratios than the primary pyroxene in the interiors of inclusions. While true, the claim is misleading because J. Simon et al. (2005) concluded that there was no Ti in the rims, whe...

Further Evidence of Beryllium-10 Heterogeneity in the Early Solar System Inferred from Be-B Systematics of Refractory Inclusions in a Minimally Altered CR2 Chondrite

Does Oxygen Isotopic Heterogeneity in Refractory Inclusions and Their Wark- Lovering Rims Record Nebular Reprocessing?

LOVERING RIMS RECORD NEBULAR REPROCESSING? J. I. Simon, J. E. P. Matzel, S. B. Simon, P. K. Weber, L. Grossman, D. K. Ross, and I. D. Hutcheon. Center for Isotope Cosmochemistry and Geochronology, KR NASA Johnson Space Center, Houston, TX 77058, USA ([email protected]), Lawrence Livermore National Laboratory, Livermore, CA 94551, USA, The University of Chicago, Chicago, IL 60637, USA, JE-...

A Compact Type a Inclusion with Multiple Wark-lovering Rims: a Complex History Recorded in Pyroxene

Introduction. The Wark-Lovering rims [1] found on many refractory inclusions are important recorders of nebular environments to which refractory inclusions were exposed after their formation, such as different temperature regimes and isotopic reservoirs [2]. As part of a large-scale survey of W-L rims to enable us to better understand the range of environments reflected in rims, an inclusion of...