Geochimica et Cosmochimica Acta, 2006, V 70, N 6, 15 March.

Evolution of groundwater chemical composition
by plagioclase hydrolysis in Norwegian anorthosites  • 
David Banks and Bjorn Frengstad
Pages 1337-1355 

Incorporating solid solutions in reactive 
transport equations using a kinetic 
discrete-composition approach  • 
Peter C. Lichtner and J. William Carey
Pages 1356-1378 

The effect of calcium on aqueous uranium(VI) 
speciation and adsorption to ferrihydrite and quartz  • 
Patricia M. Fox, James A. Davis and John M. Zachara
Pages 1379-1387 

Redox reactions between iron and quinones: 
Thermodynamic constraints  • 
Minori Uchimiya and Alan T. Stone
Pages 1388-1401 

Albite dissolution kinetics as a function 
of distance from equilibrium: Implications 
for natural feldspar weathering  • 
Mikala S. Beig and Andreas Luttge
Pages 1402-1420 

Effect of resident microbiota on the 
solubilization of gold in soil from 
the Tomakin Park Gold Mine, 
New South Wales, Australia  • 
F. Reith and D.C. McPhail
Pages 1421-1438 

13C–18O bonds in carbonate minerals: 
A new kind of paleothermometer  • 
Prosenjit Ghosh, Jess Adkins, 
Hagit Affek, Brian Balta, Weifu Guo, 
Edwin A. Schauble, Dan Schrag and John M. Eiler
Pages 1439-1456 

Stable isotope and Rare Earth Element 
evidence for recent ironstone pods within
the Archean Barberton greenstone belt, South Africa  • 
Michael T. Hren, Donald R. Lowe, 
Michael M. Tice, Gary Byerly and 
C. Page Chamberlain
Pages 1457-1470 

Zr/Rb ratio in the Chinese loess sequences 
and its implication for changes in the 
East Asian winter monsoon strength  • 
Jun Chen, Yang Chen, Lianwen Liu, 
Junfeng Ji, William Balsam, 
Youbin Sun and Huayu Lu
Pages 1471-1482 

Chemical composition of the graphitic 
black carbon fraction in riverine and 
marine sediments at sub-micron scales 
using carbon X-ray spectromicroscopy  • 
Paul R. Haberstroh, Jay A. Brandes, 
Yves Gelinas, Angela F. Dickens, 
Sue Wirick and George Cody
Pages 1483-1494 

Lanthanide–humic substances complexation. 
I. Experimental evidence for a 
lanthanide contraction effect  • 
Jeroen E. Sonke and Vincent J.M. Salters
Pages 1495-1506 

Quantification of 39Ar recoil ejection 
from GA1550 biotite during neutron 
irradiation as a function of grain dimensions  • 
Jeffrey H. Paine, Sebastien Nomade 
and Paul R. Renne
Pages 1507-1517 

Predicting phosphate saturation in 
silicate magmas: An experimental study 
of the effects of melt composition 
and temperature  • 
N. Tollari, M.J. Toplis and S.-J. Barnes
Pages 1518-1536 

Experimental partitioning of uranium 
between liquid iron sulfide and liquid 
silicate: Implications for radioactivity 
in the Earth’s core  • 
Kevin T. Wheeler, David Walker, 
Yingwei Fei, William G. Minarik 
and William F. McDonough
Pages 1537-1547 

Origin of SiO2-rich components in 
ordinary chondrites  • 
Dominik C. Hezel, Herbert Palme, 
Lutz Nasdala and Frank E. Brenker
Pages 1548-1564 

Constraints on core formation from 
Pt partitioning in mafic silicate
liquids at high temperatures  • 
E. Cottrell and D. Walker
Pages 1565-1580 

Comparative petrology, geochemistry, 
and petrogenesis of evolved, low-Ti 
lunar mare basalt meteorites from 
the LaPaz Icefield, Antarctica  • 
James M.D. Day, Lawrence A. Taylor, 
Christine Floss, Allan D. Patchen, 
Darren W. Schnare and 
D. Graham Pearson
Pages 1581-1600 

18. 
Announcement: 69th Annual Meeting
of the Meteoritical Society  • 
Page 1601