Geochimica et Cosmochimica Acta, 2006, V 70, N 4, 15 February.

Editorial Board  • 
Page CO2 

Trace element cycling in a subterranean estuary: 
Part 2. Geochemistry of the pore water  • 
Matthew A. Charette and Edward R. Sholkovitz
Pages 811-826 

Adsorption to goethite of extracellular polymeric
substances from Bacillus subtilis  • 
Anselm Omoike and Jon Chorover
Pages 827-838 

Interaction between zinc and freshwater and 
marine diatom species: Surface complexation 
and Zn isotope fractionation  • 
A. Gelabert, O.S. Pokrovsky, J. Viers, 
J. Schott, A. Boudou and A. Feurtet-Mazel
Pages 839-857 

The effect of crystallinity on dissolution
rates and CO2 consumption capacity of silicates  • 
Domenik Wolff-Boenisch, Sigurdur R. Gislason 
and Eric H. Oelkers
Pages 858-870 

Do Archean chemical sediments record ancient 
seawater rare earth element patterns?  • 
Karen H. Johannesson, Doyle L. Hawkins, 
Jr. and Alejandra Cortes
Pages 871-890 

Mg fractionation in crustose coralline algae: 
Geochemical, biological, and sedimentological 
implications of secular variation in
the Mg/Ca ratio of seawater  • 
Justin B. Ries
Pages 891-900 

Evidence for the nucleation and epitaxial growth
of Zn phyllosilicate on montmorillonite  • 
Michel L. Schlegel and Alain Manceau
Pages 901-917 

Methylmercury cycling in sediments on the 
continental shelf of southern New England  • 
Chad R. Hammerschmidt and William F. Fitzgerald
Pages 918-930 

Stable isotope chemistry of fossil bone as a 
new paleoclimate indicator  • 
Matthew J. Kohn and J. Mclver Law
Pages 931-946 

Early coalification features as approached 
by solid state 13C CP/MAS NMR spectroscopy  • 
S. Kalaitzidis, A. Georgakopoulos, 
K. Christanis and A. Iordanidis
Pages 947-959 

Carbon isotope fractionation in wood 
during carbonization  • 
C.S.M. Turney, D. Wheeler and Allan R. Chivas
Pages 960-964 

Quantification of mixing processes in 
ore-forming hydrothermal systems by 
combination of stable isotope and 
fluid inclusion analyses  • 
Gregor Schwinn, Thomas Wagner, 
Baldorj Baatartsogt and Gregor Markl
Pages 965-982 

A spectrophotometric study of neodymium(III) 
complexation in sulfate solutions 
at elevated temperatures  • 
Art.A. Migdisov, V.V. Reukov 
and A.E. Williams-Jones
Pages 983-992 

Low b18O in the Icelandic mantle and its origins: 
Evidence from Reykjanes Ridge and Icelandic lavas  • 
M.F. Thirlwall, M.A.M. Gee, D. Lowry, 
D.P. Mattey, B.J. Murton and R.N. Taylor
Pages 993-1019 

The alteration of organic matter in response to 
ionising irradiation: Chemical trends and 
implications for extraterrestrial sample analysis  • 
Richard W. Court, Mark A. Sephton, 
John Parnell and Iain Gilmour
Pages 1020-1039 

Experimental aqueous alteration of the Allende 
meteorite under oxidizing conditions: 
Constraints on asteroidal alteration  • 
Catherine L. Jones and Adrian J. Brearley
Pages 1040-1058 

Crystallization rates of shock melts in three 
martian basalts: Experimental simulation with 
implications for meteoroid dimensions  • 
Erin Walton, Cliff Shaw, Steven Cogswell 
and John Spray
Pages 1059-1075 

Announcement: 69th Annual Meeting of the 
Meteoritical Society  • 
Page 1076