Geochimica et Cosmochimica Acta, 1999, V 63, N 23-24, Decenber.

pp 3937-3937
The Outgoing Executive Editor's Final Editorial
K Turekian

pp 3939-3957
Geochemical balance of lateritization processes and climatic 
signatures in weathering profiles overlain by ferricretes 
in Central Africa
A Beauvais

pp 3959-3966
Highly isotopically depleted isoprenoids: Molecular markers for ancient
methane venting
Thiel, Michaelis

pp 3967-3982
Partitioning of transition elements between orthopyroxene and 
clinopyroxene in peridotitic and websteritic xenoliths:  
New empirical geothermometers 
HM Seitz

pp 3983-3995
Diffusive dissolution in ternary systems:  Analysis with applications to
quartz and quartzite dissolution in molten silicates
Y Liang

pp 3997-4001
147Sm-143Nd and 87Rb-87Sr ages of the eucrite Piplia Kalan
A Kumar

pp 4003-4003
Executive Editor's Editorial
KK Turekian

pp 4004-4004
Preface - Allegre Special Issue
N Shimizu

pp 4005-4012
Himalayan uplift and osmium isotopes in oceans and rivers
M Sharma

pp 4013-4035
The effect of organic matter on chemical weathering:  Study of a small
tropical watershed:  Nsimi-Zoetele site, Cameroon
P Oliva

pp 4037-4051
Geochemistry of large river suspended sediments:  Silicate chemical
weathering or recycling tracer?
J Gaillardet

pp 4053-4058
The osmium isotopic composition change of Cenozoic sea water as 
inferred from a deep-sea core corrected for meteoritic contributions
WJ Pegram, KK Turekian

pp 4059-4080
The fingerprint of seawater circulation in a 500-meter section 
of ocean crust gabbros
SR Hart

pp 4081-4099
Melt generation beneath ocean islands:	A U-Th-Ra isotope study from
Lanzarote in the Canary Islands
LE Thomas, CJ Hawkesworth

pp 4101-4110
The effects of magma replenishment processes on 238U-230Th 
disequilibrium
RD Hughes, CJ Hawkesworth

pp 4111-4117
53Mn-53Cr evolution of the early solar system
JL Birck

pp 4119-4138
Porosity of the melting zone and variations in the solid mantle 
upwelling rate beneath Hawaii:  Inferences from 238U-230Th-226Ra 
and 235U-231Pa disequilibria
KWW Sims

pp 4139-4156
Dynamics of the Galapagos hotspot from helium isotope geochemistry
MD Kurz

pp 4157-4179
Tungsten isotopes and the early development of the earth and moon
A Halliday

pp 4181-4181
Assessment of the Pb-Pb and U-Pb chronometry of the early solar system
F Tera

pp 4181-4181
Re-Os isotope measurements of single sulfide inclusions in a Siberian
diamond and its nitrogen aggregation systematics
DG Pearson

pp 4182-4182
Dissolved sulfide distributions in the water column and sediment pore
waters of the Santa Barbara Basin
JS Kuwabara

pp VII-XXXVIII
Index
No Author