Geochimica et Cosmochimica Acta, 2004, V 68, N 4, 15 February.

1 
 Carbonate complexation of yttrium and the rare earth elements in natural
 waters1,
 Yu-Ran Luo and Robert H. Byrne
 Pages 691-699 

2.   
 Pyrite oxidation in moist air1,  
 Jeanette K. Jerz and J. Donald Rimstidt
 Pages 701-714

3.   
 Neodymium isotopic variations in Northwest Pacific waters1, 
 Hiroshi Amakawa, Yoshiyuki Nozaki, Dia Sotto Alibo, Jing Zhang, 
 Kiyotaka Fukugawa and Hisao Nagai
 Pages 715-727 

4.   
 Molecular characterization of cyanobacterial silicification using
 synchrotron infrared micro-spectroscopy1, 
 Liane G. Benning, V. R. Phoenix, N. Yee and M. J. Tobin
 Pages 729-741

5.   
 The dynamics of cyanobacterial silicification: an infrared
 micro-spectroscopic investigation1,  
 Liane G. Benning, V. R. Phoenix, N. Yee and K. O. Konhauser
 Pages 743-757

6.   
 Particle geochemistry in the Rainbow hydrothermal plume,
 Mid-Atlantic Ridge1,  
 Henrietta N. Edmonds and Christopher R. German
 Pages 759-772

7.   
 Barite deposition resulting from phototrophic sulfide-oxidizing
 bacterial activity1,  
 John M. Senko, Brian S. Campbell, James R. Henriksen,
 Mostafa S. Elshahed, Thomas A. Dewers and Lee R. Krumholz
 Pages 773-780

8.   
 Characterization of Cu-complexes in smectite with different
 layer charge location: chemical, thermal and EXAFS studies1, 
 Maria Franca Brigatti, S. Colonna, Daniele Malferrari and Luca Medici
 Pages 781-788

9.   
 Effects of weathering on nickel and vanadyl porphyrins of a Lower
 Toarcian shale of the Paris basin1, 
 E. Grosjean, P. Adam, J. Connan and P. Albrecht
 Pages 789-804 

10.   
 Experimental investigation of the effect of dissolution on sandstone
 permeability, porosity, and reactive surface area1, 
 Carlos F. Jove Colon, Eric H. Oelkers and Jacques Schott
 Pages 805-817  

11.   
 Experimental study of europium (III) coprecipitation with calcite 1,  
 L. Z. Lakshtanov and S. L. S. Stipp
 Pages 819-827

12.   
 Pb diffusion in monazite: a combined RBS/SIMS study1, 
 D. J. Cherniak, E. Bruce Watson, Marty Grove and T. Mark Harrison
 Pages 829-840

13.   
 Volcanic arc of Kamchatka: a province with high-18O magma sources
 and large-scale 18O/16O depletion of the upper crust1, 
 Ilya N. Bindeman, Vera V. Ponomareva, John C. Bailey and John W. Valley
 Pages 841-865
 
 14.   
 Partitioning of Ru, Rh, Pd, Re, Ir, and Au between Cr-bearing spinel,
 olivine, pyroxene and silicate melts1, 
 K. Righter, A. J. Campbell, M. Humayun and R. L. Hervig
 Pages 867-880 

15.   
 Occurence of abundant diradicaloid moieties in the insoluble organic
 matter from the Orgueil and Murchison meteorites: a fingerprint
 of its extraterrestrial origin?1,  
 Laurent Binet, Didier Gourier, Sylvie Derenne, Francois Robert
 and Ilaria Ciofini
 Pages 881-891

16.   
 Mechanisms of weathering of meteorites recovered from hot and
 cold deserts and the formation of phyllosilicates1,
 Martin R. Lee and Philip A. Bland
  Pages 893-916 

17.   
 Chondrule textures and precursor grain size: an experimental
 study1, 
 R. H. Hewins and G. E. Fox
 Pages 917-926 

18.   
 Comment on K. Mibe, T. Fujii, and A. Yasuda (2002), "Composition
 of aqueous fluid coexisting with mantle minerals at high pressure
 and its bearing on the differentiation of the earth's mantle," 
 Geochimica et Cosmochimica Acta 66,2273–22851,  
 Roland Stalder
 Pages 927-928

19.   
 Response to the comment by R. Stalder on "composition of aqueous
 fluid coexisting with mantle minerals at high pressure and its bearing
 on the differentiation of the earth's mantle"1,
 Kenji Mibe, Toshitsugu Fujii and Atsushi Yasuda
  Pages 929-930 

20.   
 Disturbing the solar system––impacts, close encounters,
 and coming attractions, 
 Christian Koeberl
 Page 931 

21.   
 Erratum to Xuefeng Wang and Jan Veizer (2000), respiration-photosynthesis
 balance of terrestrial aquatic ecosystems, Ottawa area, Canada.
 Geochimica et Cosmochimica Acta 64(22), 3775–3786, 
 Xuefeng Wang, Jan Veizer and Ottawa-Carleton Geoscience Centre
 Pages 933-934