Geochimica et Cosmochimica Acta, 2003, V 67, N 3, 1 February.

1.
A method for precise measurement of argon 40/36 and krypton/argon ratios in 
trapped air in polar ice with applications to past firn thickness and abrupt 
climate change in Greenland and at Siple Dome, Antarctica, 
Jeffrey P. Severinghaus, Alexi Grachev, Boaz Luz and Nicolas Caillon
Pages 325-343 

2.
Laboratory determination of thermal diffusion constants for 29N2/28N2 in air at 
temperatures from -60 to 0°C for reconstruction of magnitudes of abrupt climate 
changes using the ice core fossil-air paleothermometer, 
Alexi M. Grachev and Jeffrey P. Severinghaus
Pages 345-360 

3.
Atmospheric deposition of 7Be and 10Be in New Zealand rain (1996-98),
Ian Graham, Robert Ditchburn and Bernard Barry
Pages 361-373

4.
Predicting the activity of Cd2+ and Zn2+ in soil pore water from the radio-
labile metal fraction, 
A. M. Tye, S. D. Young, N. M. J. Crout, H. Zhang, S. Preston, V. L. Barbosa-
Jefferson, W. Davison, S. P. McGrath, G. I. Paton, K. Kilham and L. Resende
Pages 375-385 

5.
An experimental study of oxygen isotope fractionation between inorganically 
precipitated aragonite and water at low temperatures, 
Gen-Tao Zhou and Yong-Fei Zheng
Pages 387-399 

6.
Structural and compositional evolution of Cr/Fe solids after indirect chromate 
reduction by dissimilatory iron-reducing bacteria, 
C. M. Hansel, B. W. Wielinga and Scott Fendorf
Pages 401-412  

7.
Selenium isotope fractionation during reduction by Fe(II)-Fe(III) hydroxide-
sulfate (green rust), 
Thomas M. Johnson and Thomas D. Bullen
Pages 413-419

8.
The geochemistry of Archaean shales derived from a Mafic volcanic sequence, 
Belingwe greenstone belt, Zimbabwe: provenance, source area unroofing and 
submarine versus subaerial weathering, 
Axel Hofmann, Robert Bolhar, Paul Dirks and Hielke Jelsma
Pages 421-440 

9.
Contrasting geochemical patterns in the 3.7-3.8 Ga pillow basalt cores and rims, 
Isua greenstone belt, Southwest Greenland: implications for postmagmatic 
alteration processes, 
Ali Polat, Albrecht W. Hofmann, Carsten Mu"nker, Marcel Regelous and Peter W. U. Appel
Pages 441-457 

10.
Experimental determination of oxygen isotope fractionations between CO2 vapor 
and soda-melilite melt, 
Irma Appora, John M. Eiler, Alan Matthews and Edward M. Stolper
Pages 459-471 

11.
The influence of pressure and composition on the viscosity of andesitic melts, 
Christian Liebske, Harald Behrens, Franc,ois Holtz and Rebecca A. Lange
Pages 473-485

12.
"Reactive" harzburgites from Huinan, NE China: products of the lithosphere-
asthenosphere interaction during lithospheric thinning?, 
Yi-Gang Xu, Martin A. Menzies, Matthew F. Thirlwall, Xiao-Long Huang, Ying Liu and Xiao-Ming Chen
Pages 487-505 

13.
Mineralogy of carbonaceous chondritic microclasts in howardites: identification 
of C2 fossil micrometeorites, 
Matthieu Gounelle, Michael E. Zolensky, Jer-Chyi Liou, Philip A. Bland and Olivier Alard
Pages 507-527 

14.
The influence of cosmic-ray production on extinct nuclide systems,
Ingo Leya, Rainer Wieler and Alex N. Halliday
Pages 529-541

15.
Diopside-bearing EL6 EET 90102: insights from rare earth element distributions, 
Christine Floss, Robert A. Fogel, Yangting Lin and Makoto Kimura
Pages 543-555

16.
History and origin of aubrites, 
S. Lorenzetti, O. Eugster, H. Busemann, K. Marti, T. H. Burbine and T. McCoy
Pages 557-571 

17.
Reviews in Mineralogy and Geochemistry, Volume 41, High-temperature and High-
pressure Crystal Chemistry, Edited by Robert M. Hazen and Robert T. Downs, The 
Mineralogical Society of America, Washington, D.D., 2000, 596 pp., US $36 (ISBN 
0-939950-53-7)., 
Tiziana Boffa Ballaran
Page 573