GEOCHIMICA ET COSMOCHIMICA ACTA 1996, V 60, N21.

pp. 3983-3994
Hydrothermal solubility of rhodochrosite, Mn(II) speciation, and
equilibrium constants
O WOLFRAM, RE KRUPP

pp. 3995-4006
Dissolved zirconium and hafnium distributions across a shelf break in
the northeastern Atlantic Ocean
LV GODFREY, WM WHITE, VJM SALTERS

pp. 4007-4024
Active postdepositional oxidation of the most recent sapropel (S1) in
sediments of the Eastern Mediterranean Sea
PM VAN SANTVOORT, GJ DELANGE, J THOMSON, H CUSSEN, TRS WILSON, MD
KROM, K STROHLE

pp. 4025-4036
A 200-year mid-european air temperature record preserved in lake
sediments: An extension of the 18 O p-air temperature relation
into the past
U VON GRAFENSTEIN, H ERLENKEUSER, J MULLER, P TRIMBORN, J ALEFS

pp. 4037-4057
Porewater pH and authigenic phases formed in the uppermost sediments
of the Santa Barbara Basin
CE REIMERS, KC RUTTENBERG, DE CANFIELD

pp. 4059-4074
133Cs NMR study of cesium on the surfaces of kaolinite and illite
Y KIM, RJ KIRKPATRICK, TR CYGAN

pp. 4075-4094
Stationary and mobile hydrogen defects in potassium feldspar
AK KRONENBERG, RA YUND, GR ROSSMAN

pp. 4095-4106
Calcium self-diffusion in natural diopside single crystals
A DIMANOV, O JAOUL, V SAUTTER

pp. 4107-4121
The variable influence of P2O5 on the viscosity of melts of differing
alkali/aluminium ratio: Implications for the structural role of
phosphorus in silicate melts
MJ TOPLIS, DB DINGWELL

pp. 4123-4131
Ti4+ in silicate melts: Energetics from high temperature calorimetric
studies and implications for melt structure
H GAN, MC WILDING, A NAVROTSKY

pp. 4133-4150
The stability and composition of phengitic muscovite and associated
phases from 5.5 to 11 GPa: Implications for deeply subducted sediments
KJ DOMANIK, JR HOLLOWAY

pp. 4151-4160
Sulfur abundance and its speciation in primitive oxidized alkaline
melts
N METRICH, R CLOCCHIATTI

pp. 4161-4166
Effects of climate on deer bone delta15N and delta13C: Lack of
precipitation effects on delta15N for animals consuming low amounts of
C4 plants
AB CORMIE, HP SCHWARCZ

pp. 4167-4179
Pyrite formation by reactions of iron monosulfides with dissolved
inorganic and organic sulfur species
RT WILKIN, HL BARNES

pp. 4181-4192
Sulphur incorporation in Jurassic marine mudrocks and their bitumens
at low thermal maturity, Cleveland Basin, England
MJ PEARSON, AFM HILL, AE FALLICK, S ECUVILLON

pp. 4193-4206
Neodymium and strontium isotopic constraints on soil sources in
Barbados, West Indies
LE BORG, JL BANNER

pp. 4207-4221
Sr/Ca and 13C/12C ratios in skeletal calcite of Mytilus trossulus:
Covariation with metabolic rate, salinity, and carbon isotopic
composition of seawater
RT KLEIN, KC LOHMANN, CW THAYER

pp. 4223-4229
The effects of long alpha-stopping distances on (U-Th)/He dates
KA FARLEY, RA WOLF, LT SILVER

pp. 4231-4240
Helium diffusion and low temperature thermochronometry of apatite
RA WOLF

pp. 4253-4263
The K (Kakangari) chondrite grouplet
MK WEISBERG, M PRINZ, RN CLAYTON, TK MAYEDA, MM GRADY, I FRANCHI, CT
PILLINGER, GW KALLEMEYN

pp. 4265-4274
Petrography and chemistry of fine-grained dark rims in the Mokoia CV3
chondrite: Evidence for an accretionary origin
X HUA, EK ZINNER, PR BUSECK

pp. 4275-4277
Influence of soluble aluminosilicate complex formation on imogolite
solubility determination
C SU, JB HARSH

pp. 4279-4283
Structural vanadium and chromium in lateritic iron oxides: Genetic
implications
U SCHWERTMANN, G PFAB

pp. 4285-4294
Oxygen and hydrogen isotope compositions in clay minerals: A potential
single-mineral geothermometer
A DELGADO, E REYES