CAIs

M. Chaussidon, F. Robert, and K.D. McKeegan (2006) Li and B isotopic variations in an Allende CAI: Evidence for the in situ decay of short-lived 10Be and for the possible presence of the short-lived nuclide 7Be in the early solar system. Geochim. Cosmochim. Acta 70, 224-245.

M. Chaussidon, F. Robert, and K.D. McKeegan (2006) Reply to the comment by Desch and Ouellette on “Li and B isotopic variations in an Allende CAI: Evidence for the in situ decay of short-lived 10Be and for the possible presence of the short-lived nuclide 7Be in the early solar system. Geochim. Cosmochim. Acta 70, 224-245.

J. Aleon, A.N. Krot, K.D. McKeegan, G.J. MacPherson, and A. Ulyanov (2005) Fine-grained, spinel-rich inclusions from the reduced  CV3 chondrite Efremovka : II. Oxygen isotopic compositions. Meteor. Planet. Sci. 40, 1043-1058.

A.N. Krot, I.D. Hutcheon, H. Yurimoto, J.N. Cuzzi, K.D. McKeegan, E.R.D. Scott, G. Libourel, M. Chaussidon, J. Aleon, and M.I. Petaev (2005) Evolution of oxygen isotopic composition in the inner solar nebula. Astrophys. J. 622, 1333-1342.

J Aléon, A. N. Krot, and K. D. McKeegan (2002) Ca-Al-rich inclusions and amoeboid olivine aggregates from the CR carbonaceous chondrites.  Meteoritics and Planetary Science 37, 1729–1755

A. N. Krot, K. D. McKeegan, L. A. Leshin, G. J. MacPherson, and E. R. D. Scott (2002) Existence of an 16O-rich gaseous reservoir in the solar nebula. Science 295(5557), 1051-1054.

S. B. Simon, A. M. Davis, L. Grossman, and K. D. McKeegan (2002) A hibonite-corundum inclusion from Murchison: a first-generation condensate from the solar nebula. Meteoritics and Planetary Science 37, 533-548.

T.J. Fagan, K.D. McKeegan, A.N. Krot, and K. Keil (2001) Calcium-aluminum-rich inclusions in enstatite chondrites (II): Oxygen isotopes. Meteorit. Planet. Sci. 36, 223-230

A.N. Krot, K.D. McKeegan, S.S.Russell, A. Meibom, Weisberg M. K., Zipfel J., Krot T. V., Fagan T. J., and Keil K. (2001)  Refractory calcium-aluminum-rich inclusions and Al-diopside-rich chondrules in the metal-rich chondrites Hammadah al Hamra 237 and Queen Alexandra Range 94411. Meteorit. Planet. Sci. 36, 1189-1216.

Y. Guan, K.D. McKeegan, and G.J. MacPherson (2000) Oxygen isotopes in calcium-aluminum-rich inclusions from enstatite chondrites: New evidence for a common CAI source in solar nebula. Earth Planet. Sci. Lett. 181, 271-277.

K.D. McKeegan, M. Chaussidon, and F. Robert (2000) Incorporation of short-lived 10Be in a calcium-aluminum-rich inclusion from the Allende meteorite. Science 289, 1334-1337.

S.B. Simon, K.D. McKeegan, D.S. Ebel, and L. Grossman (2000) Complexly zoned Cr-Al spinel found in situ in the Allende meteorite. Meteor. Planet. Sci. 35, 215-228.

K.D. McKeegan, L.A. Leshin, S.S. Russell, and G.J. MacPherson (1998) Oxygen isotopic abundances in calcium-aluminum-rich inclusions from ordinary chondrites: Implications for nebular heterogeneity. Science 280, 414-418.

 

 

Chondrules, oxygen isotopes

Y. Guan, G.R. Huss, L.A. Leshin, G.J. MacPherson, and K.D. McKeegan (2006) Oxygen isotopes and 26Al-26Mg systematics of aluminum-rich chondrules from unequilibrated enstatite chondrites.  Meteor. Planet. Sci. 41, 33-47.

A.N. Krot, K.D. McKeegan, G.R. Huss, K. Liffman, S. Sahijpal, I.D. Hutcheon, G. Srinivasan, A. Bischoff, and K. Keil (2006) Aluminum-Magnesium and Oxygen Isotope Study of Relict Ca-Al-rich Inclusions in Chondrules. Astrophys. J. 639, 1227-1237.

T. Kunihiro, A.E. Rubin, and J.T. Wasson (2005) Oxygen-isotopic compositions of low-FeO relicts in high-FeO host chondrules in Acfer 094, a type-3.0 carbonaceous chondrite closely related to CM. Geochim. Cosmochim. Acta 69, 3831-3840.

T. Kunihiro, A.E. Rubin , K.D. McKeegan, and J.T. Wasson (2004) Initial 26Al/27Al in carbonaceous-chondrite chondrules: Too little 26Al to melt asteroids. Geochim. Cosmochim. Acta 68, 2947-2957.

T. Kunihiro, A.E. Rubin, K.D. McKeegan, and J.T. Wasson (2004) Oxygen-isotopic compositions in relict and host grains in chondrules in the Yamato-81020 CO3.0 chondrite. Geochim. Cosmochim. Acta 68, 3599-3606.

S.S. Russell, G. MacPherson, L.A. Leshin, and K.D. McKeegan (2000) 16O enrichments in aluminum-rich chondrules from ordinary chondrites. Earth Planet. Sci. Lett. 184, 57-74.

L.A. Leshin, A.E. Rubin, and K.D. McKeegan (1997) The oxygen isotopic composition of olivine and pyroxene from CI chondrites. Geochim. Cosmochim. Acta, 61, 835-845.

 

 

Stardust

K.D. McKeegan, J. Aleon, J. Bradley, D. Brownlee, H. Busemann, A. Butterworth, M. Chaussidon, S. Fallon, C. Floss, J. Gilmour, M. Gounelle, G. Graham, Y. Guan, P. Heck, P. Hoppe, I.D. Hutcheon, J. Huth, H. Ishii, M. Ito, S.B. Jacobsen, A. Kearsley, L.A. Leshin, M. Liu, I. Lyon, K. Marhas, B. Marty, G. Matrajt, A. Meibom, S. Messenger, S. Mostefaoui, K. Nakamura-Messenger, L. Nittler, R. Palma, R.O. Peppin, D.A Papanastassiou, F. Robet, D. Schlutter, C.J. Snead, F.J. Stadermann, R. Stroud, P. Tsou, A. Westphal, E.D. Young, K. Ziegler, L. Zimmerman, and E. Zinner (2006) Isotopic compositions of cometary matter returned by STARDUST. Science. 314, 1724-1728.

D. E. Brownlee and 172 others (2006) Comet Wild2 under a microscope.  Science. 314, 1711-1716.

 

IDPs

C. Engrand, K.D. McKeegan, L.A. Leshin, G.F. Herzog, C. Schnabel, L.A. Nyquist, and D.A. Brownlee (2005) Isotopic compositions of oxygen, iron, chromium, and nickel in cosmic spherules: Toward a better comprehension of atmospheric entry heating effects. Geochim. Cosmochim. Acta 69, 5365-5385.

M. Gounelle, C. Engrand, M. Maurette, G. Kurat, K.D. McKeegan, and F. Brandstatter (2005) Small Antarctic micrometeorites: A mineralogical and in situ oxygen isotope study. Meteor. Planet. Sci. 40, 917-932

C. Engrand, K.D.McKeegan, and L.A. Leshin. (1999) Oxygen isotopic compositions of individual minerals in Antarctic micrometeorites: Further links to carbonaceous chondrites. Geochim. Cosmochim. Acta 63, 2623-2636.