Geochimica et Cosmochimica Acta, 2003, V 67, N 22, 15 November.

1.   
 Surface complexation of arsenic(V) to iron(III) (hydr)oxides:
 structural mechanism from ab initio molecular geometries
 and EXAFS spectroscopy, 
 David M. Sherman and Simon R. Randall
 Pages 4223-4230 

2.   
 Kinetic and equilibrium Fe isotope fractionation between
 aqueous Fe(II) and Fe(III), 
 S. A. Welch, B. L. Beard, C. M. Johnson and P. S. Braterman
 Pages 4231-4250 

3.   
 Modeling aqueous ferrous iron chemistry at low temperatures
 with application to Mars, 
 Giles M. Marion, David C. Catling and Jeffrey S. Kargel
 Pages 4251-4266 

4.   
 Structure of the orthoclase (001)- and (010)-water interfaces
 by high-resolution X-ray reflectivity, 
 P. Fenter, L. Cheng, C. Park, Z. Zhang and N. C. Sturchio
 Pages 4267-4275 

5.   
 Changes in the molecular-level characteristics of sinking
 marine particles with water column depth, 
 Elizabeth C. Minor, Stuart G. Wakeham and Cindy Lee
 Pages 4277-4288 

6.   
 Composition and syngeneity of molecular fossils from the 2.78
 to 2.45 billion-year-old Mount Bruce Supergroup, Pilbara Craton,
 Western Australia, 
 Jochen J. Brocks, Roger Buick, Graham A. Logan and Roger E. Summons
 Pages 4289-4319 

7.   
 A reconstruction of Archean biological diversity based
 on molecular fossils from the 2.78 to 2.45 billion-year-old
 Mount Bruce Supergroup, Hamersley Basin, Western Australia, 
 Jochen J. Brocks, Roger Buick, Roger E. Summons and Graham A. Logan
 Pages 4321-4335

8.   
 Quantitative trace element analysis of single fluid inclusions
 by proton-induced X-ray emission (PIXE): application to fluid
 inclusions in hydrothermal quartz,  
 Masanori Kurosawa, Sadayoshi Shimano, Satoshi Ishii,
 Kunihiro Shima and Takumi Kato
 Pages 4337-4352

9.   
 Rb/Sr record of fluid-rock interaction in eclogites: The Marun-Keu
 complex, Polar Urals, Russia, 
 Johannes Glodny, Hakon Austrheim, Jose F. Molina,
 Anatolij I. Rusin and Diane Seward
 Pages 4353-4371 

10.   
 Secular evolution of the lithosphere beneath the eastern
 North China Craton: evidence from Mesozoic basalts
 and high-Mg andesites, 
 Hong-Fu Zhang, Min Sun, Xin-Hua Zhou, Mei-Fu Zhou,
 Wei-Ming Fan and Jian-Ping Zheng
 Pages 4373-4387 

11.   
 Experimental determination of activities of FeO and Fe2O3
 components in hydrous silicic melts under oxidizing conditions, 
 Fabrice Gaillard, Michel Pichavant and Bruno Scaillet
 Pages 4389-4409 

12.   
 Long-term rates of chemical weathering and physical erosion
 from cosmogenic nuclides and geochemical mass balance, 
 Clifford S. Riebe, James W. Kirchner and Robert C. Finkel
 Pages 4411-4427 

13.   
 On type B CAI formation: experimental constraints on fO2 variations
 in spinel minor element partitioning and reequilibration effects*1, 
 Harold C. Connolly, Jr. and D. S. Burnett
 Pages 4429-4434 

14.   
 Noble gases in ureilites: cosmogenic, radiogenic, and trapped
 components, 
 V. K. Rai, S. V. S. Murty and U. Ott
 Pages 4435-4456