36. L.P. Keller, S. Messenger, G.J. Flynn, S. Clemett, S. Wirick, and C. Jacobsen, “The Nature of Molecular Cloud Material in Interplanetary Dust,” Geochimica et Cosmochimica Acta 68(11): 2577-2589, 2004.

37. L. Nittler, Carnegie Institution of Washington, personal communication, 2003.

38. J. Aleon, F. Robert, M. Chaussidon, and B. Marty, “Nitrogen Isotopic Composition of Macromolecular Organic Matter in Interplanetary Dust Particles,” Geochimica et Cosmochimica Acta 67: 3773-3783, 2003.

39. See, for example, S. Messenger, “Identification of Molecular-cloud Material in Interplanetary Dust Particles,” Nature 404: 968-971, 2000.

40. See, for example, F.J.M. Rietmeijer and P. Jenniskens, “Recognizing Leonid Meteoroids Among the Collected Stratospheric Dust,” Earth, Moon, and Planets 82-83: 505-524, 1998.



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement