There is preliminary data in a paper by Giletti (Geochimica 55:1331-1343), but see also a discussion by Jenkin (Geology, 25: 907-910), who uses the Giletti activation energy but an emperical Do. -Jim Rougvie > Dear Listmembers, > >Does anybody know diffusion coefficient of Sr in micas? Any data and >references are welcome. > >Thank you >Yuri > >--------------------------------------------- >Yuri A.Kostitsyn >Laboratory of Geochronology >and Isotope Geochemistry >IMGRE >15 Veresaeva str. Moscow 121357 Russia >phone/faxmodem:(095)951-3755 fax:(095)443-9043 >---------------------------------------------