Browsing ELibrary by Author "Ebel D.S."

Now showing items 1-8 of 8

CONDENSATION FROM SUPERNOVA GAS MADE OF FREE ATOMS

Ebel D.S.; Grossman L. (2001)

Silicon carbide grains and graphite spherules containing TiC inclusions are found in the Murchison carbonaceous chondrite. The high 44Ca (from 44Ti) and 28Si contents of these grains are strong evidence that all three ...
CONDENSATION IN DUST-ENRICHED SYSTEMS - EVIDENCE FROM SODIUM LOSS IN FLASH HEATING SIMULATION EXPERIMENTS

Ebel D.S.; Grossman L. (2000)

Full equilibrium calculations of the sequence of condensation of the elements from cosmic gases made by total vaporization of dust-enriched systems were performed in order to investigate the oxidation state of the resulting ...
ELEMENTAL AND ISOTOPIC FRACTIONATION OF TYPE B CALCIUM-, ALUMINUM-RICH INCLUSIONS: EXPERIMENTS, THEORETICAL CONSIDERATIONS, AND CONSTRAINTS ON THEIR THERMAL EVOLUTION

Richter F.M.; Davis A.M.; Ebel D.S.; Hashimoto A. (2002)

Experiments exposing Type B calcium-, aluminum-rich inclusion (CAI)-like melts at high temperatures to high vacuum or reducing hydrogen-rich gas mixtures were used to determine the rates and consequences of elemental and ...
FORMATION OF REFRACTORY INCLUSIONS BY EVAPORATION OF CONDENSATE PRECURSORS

Grossman L.; Ebel D.S.; Simon S.B. (2002)

Berman's (1983) activity-composition model for CaO-MgO-Al2O3-SiO2 liquids is used to calculate the change in bulk chemical and isotopic composition during simultaneous cooling, evaporation, and crystallization of droplets ...
FRACTIONAL CRYSTALLISATION OF SULFIDE MELTS AS ILLUSTRATED AT NORILSK AND SUDBURY

Naldrett A.J.; Ebel D.S.; Asif M.; Morrison G.; Moore C.M. (1997)
MAJOR ELEMENT CHEMICAL AND ISOTOPIC COMPOSITIONS OF REFRACTORY INCLUSIONS IN C3 CHONDRITES: THE SEPARATE ROLES OF CONDENSATION AND EVAPORATION

Grossman L.; Ebel D.S.; Simon S.B.; Davis A.M.; Richter F.M.; Parsad N.M. (2000)

Literature data for major element oxide compositions of most coarse-grained Types A and B inclusions in CV3 chondrites may be in error due to non-representative sampling of spinel relative to other phases because of small ...
MODEL EVAPORATION OF FEO-BEARING LIQUIDS: APPLICATION TO CHONDRULES

Ebel D.S. (2005)

Models for thermodynamic behavior of FeO-bearing liquids are required for understanding the separate roles of evaporation, condensation and crystallization in the formation of free-floating silicate liquid droplets in the ...
PETROLOGY AND ORIGIN OF AMOEBOID OLIVINE AGGREGATES IN CR CHONDRITES

Weisberg M.K.; Connolly Jr.H.C.; Ebel D.S. (2004)

Amoeboid olivine aggregates (AOAs) are irregularly shaped, fine‐grained aggregates of olivine and Ca, Al‐rich minerals and are important primitive components of CR chondrites. The AOAs in CR chondrites contain FeNi metal, ...

Browsing ELibrary by Author "Ebel D.S."

Browsing ELibrary by Author "Ebel D.S."

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