CosmochemistryGuest Editor: Dante S. Lauretta

Depar tmentsEditorial – To Be Explorers . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 From the Editors – Welcoming Georges Calas. . . . . . . . . . . . . 4Letter to the Editors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Triple Point – Planning Your Career . . . . . . . . . . . . . . . . . . . . 5 People in the News – Ralph, Larsen, AGU Fellows . . . . . . . . . 6 Meet the Authors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Society News

Swiss Society of Mineralogy and Petrology . . . . . . . . . . . . . .49Meteoritical Society . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50The Clay Minerals Society . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Mineralogical Society of America . . . . . . . . . . . . . . . . . . . . . .52Mineralogical Association of Canada . . . . . . . . . . . . . . . . . . .54International Association of Geonalysts . . . . . . . . . . . . . . . . .56Geochemical Society . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57European Association of Geochemistry . . . . . . . . . . . . . . . . .58 Mineralogical Society of Great Britain and Ireland . . . . . . . . .60International Association of GeoChemistry . . . . . . . . . . . . . . .62Association of Applied Geochemists . . . . . . . . . . . . . . . . . . . .63Société Française de Minéralogie et de Cristallographie . . . .64Mineralogical Society of Poland . . . . . . . . . . . . . . . . . . . . . . .65International Mineralogical Association . . . . . . . . . . . . . . . . .66

Book Reviews – Medical Geology, Amazon River Basin Biogeochemistry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66Calendar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69Parting Shots – Collecting Stuff . . . . . . . . . . . . . . . . . . . . . . 71Advertisers in This Issue . . . . . . . . . . . . . . . . . . . . . . . . . 72

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About the Cover:

The image shows the extensive dust tail and narrow ion tail of

Comet McNaught; it is the sum of three 30-second exposures

taken at twilight on 20 January 2007 . The photographer

used a Nikon D200 and an 85 mm lens at f/1 .6, ISO

100 . The image looks over Warrumbungle National Park,

New South Wales, Australia . ImAge CopyrIght 2007 gordon

gArrAdd (loomberah@nowires .com .au, www .ozemail .com .

au/~loomberah)

A Cosmochemical View of the Solar SystemDante S . Lauretta

Presolar History Recorded in Extraterrestrial MaterialsAnn N . Nguyen and Scott Messenger

Stable Isotope Cosmochemistry and the Evolution of Planetary Systems Douglas Rumble III, Edward D . Young, Anat Shahar, and Weifu Guo

The Asteroid–Comet Continuum: In Search of Lost PrimitivityMatthieu Gounelle

Organic Chemistry of Carbonaceous MeteoritesZita Martins

Chronometry of Meteorites and the Formation of the Earth and Moon Thorsten Kleine and John F . Rudge

Meteorites: An Overview Edward R . D . Scott

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Elements is published jointly by the Mineralogical Society of America, the Mineralogical Society of Great Britain and Ireland, the Mineralogical Association of Canada, the Geochemical Society, The Clay Minerals Society, the European Association of Geochemistry, the Inter national Association of GeoChemistry, the Société Française de Minéralogie et de Cristallographie, the Association of Applied Geochemists, the Deutsche Mineralogische Gesellschaft, the Società Italiana di Mineralogia e Petrologia, the International Association of Geoanalysts, the Polskie Towarzystwo Mineralogiczne (Mineralogical Society of Poland), the Sociedad Española de Mineralogía, the Swiss Society of Mineralogy and Petrology, and the Meteoritical Society . It is provided as a benefit to members of these societies .

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Volume 7, Number 1 • February 2011