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Dr. Al Hofmann
Visiting Senior Research Scientist
Lamont-Doherty Earth Observatory
Geochemistry
435 Comer
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
Phone: 
(845) 365-8927
Fax: 
(845) 865-8155
ahofmann@ldeo.columbia.edu