Geochimica et Cosmochimica Acta 1998: Vol 62 Table of Contents

19 Pages·1998·6.2 MB·English

LIST OF CONTENTS
January (Vol. 62, No. 1)
Volume 62, Number | January 1998
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Articles
L. A. LEsHIN, K. D. MCKEEGAN, P. K. CARPENTER, and R. P. HARVEY: Oxygen isotopic constraints on the genesis of carbonates from
NID CURDS. 5.6 ..a 6:G ian 6:6' d.iee5ig'b pha dA USS 04 bs ER REWARE CEE rae 04 RUN Sk 1k Rae es vanes lane 3
C. R. Paice, W. A. Kornicker, O. E. HILEMAN Jr., and W. J. SNopGrRass: Solution equilibria for uranium ore processing: The
BaSO,-H.S0,-H..0 system and the RaSO,-F,S0.-FLO System... ccc ccc cece cece ccc cencteveseveseseseseeecseees 15
A. R. Fe_my and J. R. Rustap: Molecular statics calculations of proton binding to goethite surfaces: Thermodynamic modeling of
the surface charging and protonation of goethite in aqueous solution .......... 0... cece cece eee tenet teen ee enes 25
Y. HARLAVAN, Y. Eret, and J. D. BLuM: Systematic changes in lead isotopic composition with soil age in glacial granitic
RN SS 5a Gehan Geee hdd 6 0 bob dl bo nots PRA RM SEER Ore fake ben ods bi ORK bo 44 Oe a eee rete ried eae aes 33
H. Mira and A. SHIMOYAMA: a-Aminoisobutyric acid and isovaline in Tokyo Bay sediments ..........0.00. ce.ce. e.e e.ee s 47
M. H. Conte, A. THompson, D. LESLEY, and R. P. HARRIs: Genetic and physiological influences on the alkenone/alkenoate versus
growth temperature relationship in Emiliania huxleyi and Gephyrocapsa oceanicd ...... 6.6 cc eee eee 51
B. N. Popp, E. A. Laws, R. R. BipiGARE, J. E. Dore, K. L. HANSON, and S. G. WAKEHAM: Effect of phytoplankton cell geometry
FE ee EE CPF EP COPE TE OP LTO Eee Cee rt VEE POLE Oe TPT 69
S. C. Koun, M. E. Smitu, P. J. DiRKEN, E. R. H. VAN Eck, A. P. M. KENTGENS, and R. Dupree: Sodium environments in dry and
hydrous albite glasses: Improved **Na solid state NMR data and their implications for water dissolution mechanisms ....... 79
H. HipaKA and P. HOLLIGER: Geochemical and neutronic characteristics of the natural fossil fission reactors at Oklo and Bangombé,
PPO Ce ee Te Eee PET eee ee eee eT EEE EST ETE ET ee EEO E ER ETO De eee eee Tere 89
J. D. PAsteris and I.-M. CHou: Fluid-deposited graphitic inclusions in quartz: Comparison between KTB (German Continental
Deep-Drilling) core samples and artificially reequilibrated natural inclusions .......... 0... ccc cece eee eee eee eens 109
V. W. SLETTEN and T. C. Onstort: The effect of the instability of muscovite during in vacuo heating on *°Ar/*?Ar step-heating
NG 5 ions ca bok ho V4 ERE RST eR RR Ra EE SE Te LEE eo aa eee
P. HENRY, R. K. STEVENSON, and C. GariEpy: Late Archean mantle composition and crustal growth in the Western Superior Province
of Canada: Neodymium and lead evidence from the Wawa, Quetico, and Wabigoon subprovinces .............ee0 e0eeee e
Y. Yu and R. H. Hewins: Transient heating and chondrule formation: Evidence from sodium loss in flash heating simulation
Ee IS aE PE SE ee heC ee ee NL: Pe ET te ey eer eee Pee eee eer TT ORE TE Te
D. HEYMANN, T. E. YANCEY, W. S. WoLBAcu, M. H. THIEMENS, E. A. JOHNSON, D. ROACH, and S. MoECKER: Geochemical markers
of the Cretaceous-Tertiary boundary event at Brazos River, Texas, USA ......... cece cee eee eee eee eee e eens
Announcements
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Information for Contributors
Application for Membership in the Geochemical Society
Society Statement for the Geochemical Society
The Eighth Annual V. M. Goldschmidt Conference
Direct Observation and Measurement of Hydrothermal Reactions Symposium
The Origin of the Earth and Moon Symposium
The First Gordon Research Conference
Annual Meeting of The Society for Organic Petrology
January (Vol. 62, No. 2)
Volume 62, Number 2 January 1998
Articles
W. B. Lyons, K. A. WeLcH, and P. SHARMA: Chlorine-36 in the waters of the McMurdo Dry Valley lakes, southern Victoria Land,
i. eee Le eee kere h sake ge DOU Ee RAS ke REDS OMAN RTA O68 +o Vin eee hae Uda eee’ 185
J. R. BARGAR, G. E. BRowN Jr., and G. A. Parks: Surface complexation of Pb(II) at oxide-water interfaces: II]. XAFS determination
of Pb(II) and Pb(II)-chloro adsorption complexes on goethite and alumina ..... 0... 0... ceceeee ee e ene 193
A. F. Wuite, A. E. BLum, M. S. Scuutz, D. V. Vivir, D. A. STONESTROM, M. Larsen, S. F. Murpuy, and D. EBerRL: Chemical
weathering in a tropical watershed, Luquillo Mountains, Puerto Rico: I. Long-term versus short-term weathering fluxes ..... 209
S. F. Murpuy, S. L. BRANTLEY, A. E. BLuM, A. F. Wuitre, and H. DonG: Chemical weathering in a tropical watershed, Luquillo
Mountains, Puerto Rico: II. Rate and mechanism of biotite weathering .....c.ece .c.ece. ee.e e.ee .eee. te.e en eee 227
P. D. Arocas and B. GramBow: Solid-liquid phase equilibria of U(VI) in NaCl solutions ....0.0.... .0. .ce e.e .eee eee 245
P. ADAM, E. PHILIPPE, and P. ALBRECHT: Photochemical sulfurization of sedimentary organic matter: A widespread process occurring
ag he ie alk Sb ob ba wed 6-4 4 0865 6b 0S eee sdM AS bee baskets eens Chieetees 265
J.-J. BRAUN, J. Viers, B. Dupré, M. Potve, J. NDAM, and J.-P. MULLER: Solid/liquid REE fractionation in the lateritic system of
Goyoum, East Cameroon: The implication for the present dynamics of the soil covers of the humid tropical regions ........ 273
M. Ozima, R. WieELER, B. Marty, and F. A. PoposEK: Comparative studies of solar, Q-gases and terrestrial noble gases, and
FSAI RTT T COT EE TCC TOT LET EET UTT UTE T CCRT TTT CT eee 301
Discussions
B. O. DReESSLER and V. L. SHARPTON: Comment on ‘‘Isotopic evidence for distinct crustal sources of North and South Range ores,
Sudbury Igneous Complex’’ by A. P. Dickin, M. A. Arten, and J. H. Crocket ....ce.ce .ce.ce .eee. ee.e e.ee e es 315
A. P. Dickin and J. H. Crocket: Reply to the Comment by B. O. Dressler and V. L. Sharpton on ‘‘Isotopic evidence for distinct
crustal sources of North and South Range ores, Sudbury Igneous Complex”” .. 1...ee ee e eens 319
S. Das SHARMA: Comment on ‘‘5'SO values on mudrocks: More evidence for an '*O-buffered ocean’? by L. S. Land and
ee ar as ea eA el etd an el ate ia ad wR baa a We RR he Ok are oA © UEP Oa OREN Oe deed bee biewse 323
L. B. RAILsBAcK: Comment on ‘‘5'°O values of mudrocks: More evidence for an '*O-buffered ocean’’ by L. S. Land and
ES POLL Pilko 6 noid Bde E bd kk AES NA CONOR EU a 54 wh CAN UNSEAT PEER l a eds ce eee bs beesau Sees 325
L. S. Lanp and F. L. Lyncu Jr.: Rely to the Comments by L. B. Railsback and S. Das Sharma on ‘*8'*O values of mudrocks: More
i, So i Set he cS eB Ao ad wa hl dine mua cathe aG IS Ok KK) htiiedin nan eWbiih 327
B. R. Frost and C. BALLHAUS: Comment on ‘‘Constraints on the origin of the oxidation state of mantle overlying subduction zones:
An example from Simcoe, Washington, USA”’ by A. D. Brandon and D. S. Draper ...0..0.0.... c.e.e. .ee e 329
A. D. BRANDON and D. S. DRAPER: Reply to the Comment by B. R. Frost and C. Ballhaus on ‘‘Constraints on the origin of the
oxidation state of mantle overlying subduction zones: An example from Simcoe, Washington, USA”’ .................... 333
H. G. MACHEL: Comment on ‘‘The effects of thermochemical sulfate reaction upon formation water salinity and oxygen isotopes
in carvonate reservoirs’ by R. H. Worden, P. C. Smailey, and N. FH. Oxtody ..... ccc ccc cece ccc cecsevecesccvceces 337
R. H. Worpben, P. C. SMALLEY, and N. H. Oxtosy: Reply to the Comment by H. G. Machel on ‘‘The effects of thermochemical
sulfate reduction upon formation water salinity and oxygen isotopes in carbonate reservoirs’? ......0.0.0 c.e e.e .eee. e ee 343
T. M. Harrison, M. Grove, and O. M. Lovera: Comment on ‘‘Direct determination of *’Ar recoil distance’ by
i eee eee EUS hi ag ages adh 6 U0 a a SERRE EERE ALENT SS CUTE ES EERS CE OEE S ORR V KET OER ie Keo xKOS 347
I. M. Vita: Reply to the Comment by T. M. Harrison, M. Grove, and O. M. Lovera on ‘‘Direct determination of *?Ar
Te iran ond Auld ig 8S AW hd OF DEMOED ARS a OTN Ewe WOR 6 oe OE RU Cal's RTCA NE Ewe Re yes chads 349
A. W. M. G. SourEN: Comment on ‘‘Oxidation of cobalt and manganese in seawater via a common microbially catalyzed pathway’’
ec ts a kg LON ik be CER EERE LAH E oe ee PET AOS OO) LOR s Saree ORT hbne OEE bow Rb OREO 351
B. M. TeBso: Comment on the Comment by A. W. M. G. Souren on ‘‘Oxidation of cobalt and manganese in seawater via a common
microbially catalyzed pathway’’ by J. W. Moffett and J. Ho
SS OCC CCC SOC OHSS HOC OSCSEEVSE MSEC DOSER STBPSeseesaosee Cee ee gases ose eweeces ds
J. W. Morrett: Reply to the Comment by A. W. M. G. Souren on ‘‘Oxidation of cobalt and manganese in seawater via a common
I NS io 55-85 5.6.0 bin nna een 800k a boi0 se 4 ener edad awk eee eeee 2 4e eee 359
J. J. MorGAN and S. H. R. DAvies: Comment on ‘Linking microscopic and macroscopic data for heterogeneous reactions illustrated
by the oxidation of manganese(II) at mineral surfaces’’ by J. L. Junta-Rosso, M. F. Hochella Jr., and J. D. Rimstidt ........ 361
J. J. Rosso, M. F. Hocue.ta Jr., and J. D. Rimstipt: Reply to the Comment by J. J. Morgan and S. H. R. Davies on
‘‘Linking microscopic and macroscopic data for heterogeneous reactions illustrated by the oxidation of manganese (II) at
FTE CETL ST TCT COROT CECE OO EE POT OTT OLE Oe eee en mame Ham he 365
S. WALDRON, A. FALLICK, and A. HALL: Comment on ‘‘Spatial distribution of microbial methane production pathways in temperate
zone wetland soils: Stable carbon and hydrogen evidence’’ by E. R. C. Hornibrook, F. J. Longstaffe, and W. S. Fyfe ....... 369
E. R. C. HORNIBROOK, F. J. LONGSTAFFE, and W. S. Fyre: Reply to the Comment by S. Waldron, A. Fallick, and A. Hall on
‘*Spatial distribution of microbial methane production pathways in temperate zone wetland soils: Stable carbon and
STOTT UT LT TET E TEETER TE ee Ce TEE CEP CERT EE De ee ee PEE eee ee 373
R. H. DoreMus: Comment on ‘‘Stationary and mobile hydrogen defects in potassium feldspar’? by A. K. Kronenberg, R. A. Yund,
OFC Tee rE. Ces CT re TT ee ET TEE Te COE EE, PPE Le ee Ce ea 377
A. K. KRONENBERG, R. A. YUND, and G. R. ROSSMAN: Reply to the Comment by R. H. Doremus on “‘Stationary and mobile hydrogen
ee Ee I 55. bc vn a's RVG DE HEEWE SES ¥OC4 0 i050 040300 84R4b0R bine Ge be eka etaatebaeee eee 379
Announcements
ees ie eee Gib I IE is 65:5 0 basse owben bubs & 800d 0's 0k Ss pe Vea Coes Ne eh eee atk teen dee ee isieees 383
Eighth Annual V. M. Goldschmidt Conference
Direct Observation and Measurement of Hydrothermal Reactions Symposium
The Origin of the Earth and Moon Conference
First Gordon Research Conference on Pattern Formation in Earth Sciences
Annual Meeting of the Society for Organic Petrology
European Research Conferences
EPSL Online
February (Vol. 62, No. 3)
Volume 62, Number 3 February 1998
Articles
P. S. ANDERSSON, D. PorcELLI, G. J. WASSERBURG, and J. INGRI: Particle transport of ***U-*°*U in the Kalix River and in the
I a ick doi waceca a bene Wahine 6 hs pA WA nd ne eee dbdia BANE bk Ree wheel Nike bine eee AE es Rosle pen buena ied
A. Baker, D. Genty, W. DreyBropt, W. L. BARNES, N. J. MocKLer, and J. Grapes: Testing theoretically predicted stalagmite
growth rate with Recent annually laminated samples: Implications for past stalagmite deposition ..............0.0eeeee: 393
I. LeprON and D. L. SuArez: Kinetics and mechanisms of precipitation of calcite as affected by Peo, and organic ligands
ak kkk Sas BOA kA CUE Eh AR a Re ae he bk RPSL OLE R ENA TERRES WEES Oop ate Nae MAS oes bee eeaee 405
F. J. Huertas, L. CHou, and R. WoLLast: Mechanism of kaolinite dissolution at room temperature and pressure: Part 1. Surface
ar re oe ree eee ee eee ET nee Eee rr err Per Ter eee py eer re rer re eee Pe TT t
J. O. H. Stone, J. M. Evans, L. K. Firtetp, G. L. ALLAN, and R. G. CRESSWELL: Cosmogenic chlorine-36 production in calcite by
66H 66D O64 27 ERHEC EEO 6B EREHBE ODE EF ESD OD CEOS 2.8 OOO :O.S So 6 CS OB. O46 3-64 266 CREO © AD CET OE ee HRS Ce 2 OOo 2 6.9 8.2 22.2.4 Re Ss
C. NIEWOHNER, C. HENSEN, S. KASTEN, M. ZABEL, and H. D. ScHuLz: Deep sulfate reduction completely mediated by anaerobic
methane oxidation in sediments of the upwelling area off Namibia ........ 0... cece cee eee eee eee e te eeeee 455
O. GusTAFSSON and P. M. GscHWEND: The flux of black carbon to surface sediments on the New England continental shelf ... 465
W.-J. Cai, Y. WANG, and R. E. Hopson: Acid-base properties of dissolved organic matter in the estuarine waters of Georgia, USA
P. J. Saccocia, J. S. SEEWALD, and W. C. SHANKs III: Hydrogen and oxygen isotope fractionation between brucite and aqueous NaC]
ai aa ME CO a Linh Gua e dbs 6b 06 ee DEN b ee oH od 64.0 e PA dws tbReeebeeee DS 485
Y. V. AMELIN and L. A. NEYMARK: Lead isotope geochemistry of Paleoproterozoic layered intrusions in the eastern Baltic Shield:
Inferences about magma sources and U-Th-Pb fractionation in the crust-mantle system ......00s .cec.e e.e e.ee .eee. ee ns 493
N. Metricu, J.-L. JoRon, and B. BERTHIER: Occurrence of boron-rich potassic melts in the Vulsini Volcanic District, Italy: Evidence
I ata Ua al sie Sa eae oe em hd 6 ON Wake Oran v taal on bed ech eee Heb eh naRanee Oni eleevedees 507
A. Kumar, S. N. CHARAN, K. GoPALAN, and J. D. MACDOUGALL: A long-lived enriched mantle source for two Proterozoic carbonatite
| PPPOE TENT CEC OLE AE CTOTELT ERTL PLETE ETL ERO TEL ORT CLOT ERECT EET 515
B. L. Bearp, L. A. TAyLor, E. E. SCHERER, C. M. JOHNSON, and G. A. SNYDER: The source region and melting mineralogy of
high-titanium and low-titanium lunar basalts deduced from Lu-Hf isotope data .......... 0.0... cece cece eee eee 525
M. F. Horan, M. I. SMouiar, and R. J. WALKER: '**W and '*’Re-'*’Os systematics of iron meteorites: Chronology for melting,
ER TT ae EE Cee ee ey eee ne ee re ry 545
Scientific Comment
J. Stone: A rapid fusion method for separation of beryllium-10 from soils and silicates .....0.... c.c e.ce. .ee.e eee 555
Announcements
PR CPE ee ee er er ee er ere eee eee eee ee 563
February (Vol. 62, No. 4)
Volume 62, Number 4 February 1998
Articles
O. SIVAN, Y. EREL, D. MANDLER, and A. NisHri: The dynamic redox chemistry of iron in the epilimnion of Lake Kinneret (Sea of
I eR ara a i oak oe ele hie Ea Cue 3a ous 66.0.8 45'% 6 ade Ane ane ew kek Maes bs + eee ke os 565
P. K. AGGARWAL and M. A. DILLON: Stable isotope composition of molecular oxygen in soil gas and groundwater: A potentially
Fowust tracer for GITUSION SG ORYMOM CONSUMPTION PTOCESSES ... cece cece ccc eneresveceeeereeseecevavecees 577
C. M. Ecc.eston, S. Huc, W. Stumm, B. SULZBERGER, and M. Dos SANTos AFonso: Surface complexation of sulfate by hematite
a Th s)he ie Ble a pik acd alte FRESE 6 OSA GE SOREN S ook ESR SS ROR tem bn bea aes 585
C. C. Ainswortu, D. M. FRigpRICcH, P. L. GASSMAN, Z. WANG, and A. G. JoLy: Characterization of salicylate-alumina surface
back eek eenebh ee be ba ce vA PN ONds poke 0b awa baw UO MOMR SS Bhs b 9s 595
M. HuetreL, W. Ziesis, S. Forster, and G. W. LUTHER III: Advective transport affecting metal and nutrient distributions and
Sg Se Niel a ale APU Ad db cb EER ot te Oa wa BA Cele e ea dae Od 613
J. Bepiz, M. A. A. SCHOONEN, M. FUHRMANN, and D. R. STRONGIN: Surface charge development on transition metal sulfides: An
IS NR See eo ae eng a a hos Cae Tae Rok Leen abe oes ohn sees Fo ERENT KS ben 633
J. THomson, I. JARvis, D. R. H. GREEN, D. A. GREEN, and T. CLAYTON: Moblility and immobility of redox-sensitive elements in
aS ns ne Vio wens Ok OR AOA AMSA he bb wha eSS eék a 60 bd Rees oe cmedea 643
A. J. Lewis, A. KoMNiNou, B. W. D. YARDLEY, and M. R. PALMER: Rare earth element speciation in geothermal fluids from
ee, ME 60's as ie sinew whew ko po GW ah MRL wn EOF OPO wey ee Aeak ree hd otk acme 657
K. mh. LAG; On the trentment of Comcordinmt wramiusi-lend OOO oni ccc cece cece eect cceseccercbseseveccces 665
M.-F. ZHou, M. Sun, R. R. Keays, and R. W. KerrIcH: Controls on platinum-group elemental distributions of podiform chromitites:
A case study of the high-Cr and high-Al chromitites from Chinese orogenic belts ......00 c.c c.e ce.e c.ece. eee. ee.e e ee 677
S. S. Russet, G. R. Huss, A. J. FAHEY, R. C. GREENWOOD, R. HUTCHISON, and G. J. WASSERBURG: An isotopic and petrologic study
of calcium-aluminum-rich inclusions from CO3 meteorites
SF 2S 6ST OH OS. FCC SHASP OPES EA FEE TEACEEDESDEBAPHPREBHOAG ODO 6 ES
J. T. Wasson, B.-G. Cuo1, E. A. JeRDE, and F. ULFF-M6OLLER: Chemical classification of iron meteorites: XII. New members of the
magmatic group
OES 2S OP 66 © O16 S 6S O14 OO 242K EE BAO CODED EO OBES OCOD CES O46 TOR HES OT SOR DO OF €H't OOO 2 CO. Ss ESE Ole Oe HO Se 8 ie 8.
Addendum
B. I. A. McInnes: Addendum to D. B. Patterson, K. A. Farley, and B. I. A. McInnes (1997) “Helium isotopic composition of the
Tabar-Lihir-Tanga-Feni island arc, Papua New Guinea.” Geochimica et Cosmochimica Acta 61, pp. 2485-2496 ............ 725
Errata
D. Frost: Erratum to D. J. Frost and B. J. Wood (1997) “The fugacity of carbon dioxide and the graphite/diamond CO equilibrium
between 35 and 77 kbar at 925 to 1650°C.” Geochimica et Cosmochimica Acta 61, pp. 1565-1574 ............200 .e0ee e 725
J. D. GLEASON: Erratum to J. D. Gleason, D. A. Kring, D. H. Hill, and W. V. Boynton (1997) “ Petrography and bulk chemistry
of Martian orthopyroxenite ALH84001: Implications for the origin of secondary carbonates.” Geochimica et Cosmochimica Acta
61, 3503-3512; and Erratum to J. D. Gleason, D. A. Kring, D. H. Hill, and W. V. Boynton (1997) “Petrography and bulk chemistry
of Martian lherzolite LEW88516.” Geochimica et Cosmochimica Acta 61, pp. 4007-4014 2.0..c.ee e ee 725
B. A. HoLMEN: Erratum to B. A. Holmén and W. H. Casey (1996) “Hydroxamate ligands, surface chemistry, and the mechanism
of ligand-promoted dissolution of goethite [a-FeQOH(s)].” Geochimica et Cosmochimica Acta 60, pp. 4403-4416 .......... 726
Y. ZHANG: Erratum to Y. Zhang, J. Jenkins, and Z. Xu (1997) “Kinetics of the reaction H0 + O «> 20H in rhyolitic glasses upon
cooling: Geospeedometry and comparison with glass transition.” Geochimica et Cosmochimica Acta 61, 2167-2173 ........ 726
Book Reviews
C. KOEBERL: A History of Modern Planetary Physics: Vol. 1: Nebulous Earth; Vol. 2: Transmutted Past; Vol. 3: Fruitful Encounters,
a Ms CE 669-35 snip Gee DE Woe Wea la ke 505s ORE OAR ci e's A REOER ARAN DELCO OEES 556846 SE SRT ete 727
C. KOEBERL: Table of Isotopes, 8th ed., edited by R. B. Firestone and V. S. Shirley ....0.... .cece. ce.ce e.ee e.e ee.e ee ns 727
D. A. SVERJENSKY: Geochemistry of Hydrothermal Ore Deposits, 3rd. ed., edited by H. L. Barnes .....0..... .ce.e e.e e 728
K. H. FREEMAN: Organic Acids in Geological Processes edited by E. D. Pittman and M. D. Lewan ..................0004. 730
M. F. HOCHELLA: Physics and Chemistry of Earth Materials by A. Navrotsky .......... 0.0 ce eee eee eee eee eee eee e nee 730
S.C. Komor: The Pleistocene Boundary and the Beginning of the Quaternary edited by J. A. Van Couvering .............. 731
Awards of the Geochemical Society
W. S. BRoEcKER: Introduction of Devendra Lal for the 1997 V. M. Goldschmidt Medal ....0..0.0..0 c.ece. ee.e ee.e e ee 733
>. LAL: Acceptance Gpecch for Gre 1997 V. NE. Goceciiidt BEGG 2... nc ccc cece secevervdeeseceseccesesereeseecee 735
B. J. Woop: Introduction of Jonathan D. Blundy for the 1997 F. W. Clarke Award ....0. c.ece. ee.e e.ee. ee.e e ee 737
5. D. Buunpy: Accegtance Speech for the 1997 F. W. Clatke Award on... cc ccccccccccccsevenceevereveceseessesevons 739
Announcements
PCE Re eee Poe EERE ET ULL POT TEETT ITO r eT TC TE UE OTT ee 741
The Eighth Annual V. M. Goldschmidt Conference
March (Vol. 62, No. 5)
Volume 62, Number 5 March 1998
Articles
S. K. Sincu, J. R. Trivepi, K. PANDE, R. RAMESH, and S. KRISHNASWAMI: Chemical and strontium, oxygen, and carbon isotopic
compositions of carbonates from the Lesser Himalaya: Implications to the strontium isotope composition of the source waters of
ee Ts I, SE I PEON oo bik 8 cee ckp bo 055s Fee Ke OAs se wE ied cw es Peden dnd ht et nek ns b> 000d ME bee 743
P. Zuppas and A. Mucct: Kinetics of calcite precipitation from seawater: II. The influence of the ionic strength .............
D. E. CANFIELD, B. P. Boupreau, A. Mucci, and J. K. GUNDERSEN: The early diagenetic formation of organic sulfur in the sediments
Oe ee Bs I Fo os hae iets bs KhaM dew geT ad es FwEE at apo be bk news 40450 09d Pee ERGs 4910000 5 oo bared 767
M. H. BrapBury and B. BAEYENS: A physicochemical characterisation and geochemical modelling approach for determining
porewater chemistries in argillaceous TOCKS ... 2... ccc cscccceeccsscerecceeces Ci kd eee Oder EV Ob che £054448 88 Pe 783
S. J. Burns: Carbon isotopic evidence for coupled sulfate reduction-methane oxidation in Amazon Fan sediments ...........
J. Poinsot, P. SCHNECKENBURGER, P. ADAM, P. SCHAEFFER, J. M. TRENDEL, A. RIVA, and P. ALBRECHT: Novel polycyclic sulfides
derived from regular polyprenoids in sediments: Characterization, distribution, and geochemical significance .............. 805
L. M. Anovitz, J. G. BLENcog, D. B. Joyce, and J. Horira: Precise measurement of the activity/composition relations of H,O-N,
ens slab ct pag yee 6s 000 0 U4 Me Ue SSH r kop he bHOVR ROCHE ORE DEOOs NeW ee EWR O oes 815
R. L. NIELSEN, P. J. MICHAEL, and R. Sours-PAGe: Chemical and physical indicators of compromised melt inclusions ........ 831
M. D. Kurz, A. P. LE Roex, and H. J. B. Dick: Isotope geochemistry of the oceanic mantle near the Bouvet triple junction 841
V. G. BaTtanova, G. Sune, and A. V. SoBoLev: Origin of geochemical heterogeneity in the mantle peridotites from the Bay of
Islands ophiolite, Newfoundland, Canada: Ion probe study of clinopyroxenes .......... 2.0.0 c cece ee eee eee eee eens 853
C. K. GeBMaNN and D. C. Ruste: The effect of temperature on the partitioning of nickel, cobalt, manganese, chromium, and
vanadiem at 9 GPa und constraints on formation of the Eartin's COPS... ww ccc ccc cece ccescceeeeevccccesssoevens 867
M. M. HirsCHMANN, M. B. BAKER, and E. M. STo-per: The effect of alkalis on the silica content of mantle-derived melts ..... 883
P. HANON, F. ROBERT, and M. CHAUsSIDON: High carbon concentrations in meteoritic chondrules: A record of metal-silicate
eras hb OL ee Bs sk abe bd dR eoeb Obed 8.00 k Mb e ed Cede 1b COMP ESOT EN eek N ewe Eeebte eel 903
Scientific Comment
K. S. Pitzer and B. Das: Thermodynamic properties of Na,SO,(aq) above 200°C 6... eceee e ee eee eee 915
Announcements
EE I eA eRe PE ERE Er ee ee re eee Pe eee 917
Eighth Annual V. M. Goldschmidt Conference
Current Literature Survey
The Geochemical Society 1999 Awards Nominations
The Geochemical Society 1999 Officer and Director Candidates
Call for Nominations for the 1999 Joint EAG-GS Geochemistry Fellows
The Origin of the Earth and Moon Symposium
The First Gordon Research Conference
March (Vol. 62, No. 6)
Volume 62, Number 6 March 1998
The Geochemical Society 1997 Presidential Address
A. N. HaAtuipay, D.-C. Lee, J. N. CHRISTENSEN, M. REHKAMPER, W. Yi, X. Luo, C. M. HALL, C. J. BALLENTINE, T. PETTKE, and
C. STIRLING: Applications of multiple collector-ICPMS to cosmochemistry, geochemistry, and paleoceanography ........... 919
Articles
G. JorDAN and W. RAMMENSEE: Dissolution rates of calcite (1014) obtained by scanning force microscopy: Microtopography-based
dissolution kinetics on surfaces with anisotropic step velocities ........... ccc cece ee ee eee cence eee e ee eeeees 941
W. E. SEYFRIED JR., X. CHEN, and L.-H. CHAN: Trace element mobility and lithium isotope exchange during hydrothermal alteration
of seafloor weathered basalt: An experimental study at 350°C, 500 bars ......... ccc ccc ee teen eee teen ees 949
S. SCHOUTEN, M. Baas, H. M. E. vAN KAAM-Peters, and J. S. SINNINGHE DamsTE: Long-chain 3-isopropyl alkanes: A new class of
EP POTEET PORE TOE LT, CRE OCTET PO TEE ET EL OT TOE ECE CT PCC TET ET CORO EL CT eT 961
A. VINK, S. SCHOUTEN, S. SEPHTON, and J. S. SINNINGHE DamsTE: A newly discovered norisoprenoid, 2,6,15,19-tetramethylicosane,
90 Es l,l wc Wnt nd ee aie ed h bte bhA RES A ROM RRD ECD Kd s wed bth vegies eawEnd’ 965
D. J. Wesotowski, P. BENEZETH, and D. A. PALMER: ZnO solubility and Zn** complexation by chloride and sulfate in acidic
solutions to 290°C with in-situ pH measurement
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H. C. HeLGgson, C. E. Owens, A. M. Knox, and L. RicHarpb: Calculation of the standard molal thermodynamic properties of
crystalline, liquid, and gas organic molecules at high temperatures and pressures ......0.0 c.cc c.ece. ce.ce .eee. ce0eee es 985
Z.-H. PANG and M. REED: Theoretical chemical thermometry on geothermal waters: Problems and methods ................. 1083
G. K. Nicovussi, M. J. PELLIN, R. S. Lewis, A. M. Davis, S. AMARI, and R. N. CLAYTON: Molybdenum isotopic composition of
individual presolar silicon carbide grains from the Murchison meteorite .....0. .cc e.ce c.ece .eee .ee e.e eee. ee.e ee ees 1093
Announcements
ee OU ee Te SINE TINE: ii.6 :4.6 bw cin scv i tweiees oven cledeis tides Os esen seC abadcense veanhbeteedaltnaaeks 1105
April (Vol. 62, No. 7)
Volume 62, Number 7 April 1998
Articles
H. M. SToLt and D. P. Scurac: Effects of Quaternary sea level cycles on strontium in seawater ........00.00.0 e.e .ee .ee e 1107
M. E. BRANpRIss, J. R. O’NeiL, M. B. EDLUND, and E. F. STOERMER: Oxygen isotope fractionation between diatomaceous silica and
ES 05.656 0.0 PURE ieee 60.5 ONT FERRER Ue Ei rs BAER ona EATS OT UREN ae CCS e eens eee tL Reha 1119
S. SCHOUTEN, S. SEPHTON, M. Baas, and J. S. SINNINGHE DamsTE: Steroid carbon skeletons with unusually branched C-3 alkyl side
ET TEE EEC TE ee ee, OT Pe ENE PUENTE ee Tre pore eee ey rey 1127
C. S. OAKEs, K. S. Pitzer, and S. M. STERNER: The system NaCl-CaCl,-H,O: Part 3. Heats of dilution and mixing at 373 to 573
K and 21.5 MPa using a new high-temperature, flow-through calorimeter ........ 0.0... cece eee eee eee e eee e ees 1133
R. Moretti and G. OTTONELLO: An appraisal of endmember energy and mixing properties of rare earth garnets ............. 1147
I. N. BINDEMAN, A. M. Davis, and M. J. DRAKE: Ion microprobe study of plagioclase-basalt partition experiments at natural
Pe TT eTe T Te TEER Te Tee ee CETTE TT LORE Te Te Te re eee 1175
N. METRICH and M. J. RUTHERFORD: Low pressure crystallization paths of H,O-saturated basaltic-hawaiitic melts from Mt. Etna:
Implications for open-system degassing of basaltic volcanoes ........... cece eee teen eee eee e nee e ene 1195
J. M. Pye and S. E. Haccerty: Eclogites and the metasomatism of eclogites from the Jagersfontein Kimberlite: Punctuated
a a ink ocd bacnn Kins dhe ek edb y Heb 068 pee Renee ERs 6hb50s oe e eeee 1207
V.S. Urusov and V. B. DuDNIKovA: The trace-component trapping effect: Experimental evidences, theoretical interpretation, and
OSTEO ECE ES TEC ORT ETC O EEE TEE OTTO EE FOE CERT CTE ET OPO 1233
T. SHIBATA, E. TAKAHASHI, and J.-I. MATSUDA: Solubility of neon, argon, krypton, and xenon in binary and ternary silicate systems:
a Te Be a re hb 6 ne REARS AAR EOS FATE or sda rk Dba 5e ood en eeen thes iVherewwenaeeebet 1241
C. FLoss, O. B. James, J. J. McGee, and G. Crozaz: Lunar ferroan anorthosite petrogenesis: Clues from trace element distributions
3 re eer eras ok re pe rare er re ey Perr eB ere re ee re ce ere ry re 1255
R. M. Houau, I. P. Wricut, H. Sicurpsson, C. T. PILLINGER, and I. GiLMour: Carbon content and isotopic composition of K/T
eS NE isha i unn 'scd be V6 0.w end OX Adin Sa WWE OREN OEE 6b 8 b4ks wes bed 0p SAGES ASE d eee e bow es Ges 1285
Announcements
SE OT Tee PE ETE TOT eT Te ee CEE ECR TCT OTL EET CP ere TU eee
April (Vol. 62, No. 8)
Volume 62, Number 8 April 1998
Articles
J. GANor and A. C. LAsaGa: Simple mechanistic models for inhibition of a dissolution reaction ........c.ec.e .ee0e 0ee ns
J. ZHANG and Y. Nozaki: Behaviour of rare earth elements in seawater at the ocean margin: A study along the slopes of the Sagami
Gg OP OeT ETT ETC Tee TTT re Ce ee er ee ROT OU EE ORAL RT ee
G. Huttue, S. HULTHE, and P. O. J. HALL: Effect of oxygen on degradation rate of refractory and labile organic matter in continental
EE NS OE eee ree Pat ee eee eee er oe eee, Se ere ee ee er eee eee 1319
B. RAnsom, D. Kim, M. KasTNer, and S. WAINWRIGHT: Organic matter preservation on continental slopes: Importance of mineralogy
NA en, So ee ee eT ee eee ee eer er err rere ye eee ee Per ee ee 1329
R. G. Kem, E. Tsamakis, J. C. Gippincs, and J. I. HEpGEs: Biochemical distributions (amino acids, neutral sugars, and lignin
phenols) among size-classes of modern marine sediments from the Washington coast ....00..0 c.ece .cece. ee.e e.ee e ees 1347
X.-C. WaNG, E. R. M. DrurreL, S. GrirFin, C. LEE, and M. KASHGARIAN: Radiocarbon studies of organic compound classes in
ey Ce ns Oe a ND PNET CRUD ce kb hbcsc deeb aee bees bd ees sense rersenesesassncieeensecens 1367
S. CARROLL, E. Mroczexk, M. ALAI, and M. Epert: Amorphous silica precipitation (60 to 120°C): Comparison of laboratory and
ES Geet ee Vas is ewe ee Cats CHES SA AE ORE RES SOO DALAM K EMG On 00d es bob KOR DORD OREM EDS WREO; 1381
S. SCHOUTEN, W. C. M. K. BRETELER, P. BLOKKER, N. ScHoct, W. I. C. Rupstra, K. Grice, M. Baas, and J. S. S. DAMsTE:
Biosynthetic effects on the stable carbon isotopic compositions of algal lipids: Implications for deciphering the carbon isotopic
ERS I NLS RCS IYF EM ee Pe Ot a ee Oe er eee, Se eT eer ee Pees ee 1397
G. D. Assott, G. EwBANK, D. Epwarps, and G.-Y. WANG: Molecular characterization of some enigmatic Lower Devonian fossils 1407
A. Ruzicka, G. A. SNypDeR, and L. A. TAYLor: Mega-chondrules and large, igneous-textured clasts in Julesberg (L3) and other
ordinary chondrites: Vapor-fractionation, shock-melting, and chondrule formation .....0.0.. cc .ece. ee .eee. eee. eee. e e ee 1419
X. Hua and P. R. Buseck: Fayalitic halos around inclusions in forsterites from carbonaceous chondrites ...............4.4. 1443
D. D. Bocarp and D. H. Garrison: *?Ar-*°Ar ages and thermal history of mesosiderites .............c.c c.ee0e0ee0eecee 1459
Announcements
I ELE EE ET eT TS Peer Tere eee Tree eer TT eee e TT TT Tree Pre Tie 1469
Current Literature Survey
Eighth Annual V. M. Goldschmidt Conference
The Geochemical Society 1999 Awards Nominations
The Geochemical Society 1999 Officer and Director Candidates
Call for Nominations for the 1999 Joint EAG-GS Geochemistry Fellows
May (Vol. 62, No. 9)
Volume 62, Number 9 May 1998
Articles
N. S. ABu-JABER: A new look at the chemical and hydrological evolution of the Dead Sea... 1... eeee ee ee 1471
R. H. PARKMAN, J. M. CHARNOCK, F. R. Livens, and D. J. VAUGHAN: Study of the interaction of strontium ions in aqueous solution
as ow Sea 5 sae bho ow Rese Og ed bop 4b ewe e hs6 s * ROADS EVES 0409 0b ROO 1481
S. L. BRANTLEY, J. T. CHESLEY, and L. L. STILLINGs: Isotopic ratios and release rates of strontium measured from weathering
Rady Noe Cle Be Ol easy gh lbig:de BW CAO OTeMe SA HES PAE Lad CALS OOP OSRDES CDA SW RENE CAUSED UK EEEO EE ORES 1493
R. BRAUCHER, F. CoLin, E. T. Brown, D. L. Boures, O. BAMBA, G. M. RAISBECK,F. Yiou, and J. M. Koun: African laterite dynamics
ee oa SES ES vee he MEM tea ac Qh/aw Dake ier yaaa KERIsad Aeneas 1501
M. Pettine, L. D’Ottone, L. CAMPANELLA, F. J. MILLERO, and R. PAssiNo: The reduction of chromium (VI) by iron (II) in aqueous
EE ee be be L GW Oa me kk be LWA E LAUT Kee OE EER ET OES e CEES CORRES ROS LE 0 UPC EERE ANS eae 1509
D. Kapko and D. A. BUTTERFIELD: The relationship of hydrothermal fluid composition and crustal residence time to maturity of vent
ee ok is eh bet Se baa da basa ds Co ea RSA Pane Ve CORE NO he AK eee ohn ANeeens booed 1521
F. MARCANTONIO, S. HicGins, R. F. ANDERSON, M. StuTe, P. SCHLOssErR, and E. T. RAsBury: Terrigenous helium in deep-sea
NE NEG ihn Gis Pa s-4 44S KMS SUER Ci eM DELO. MAOR EAE Sd.b Os MOUS ATOR EE oh POOR ES KEAG R540 605d 408d 1535
T. Ito, A. Usul, Y. Kastwara, and T. NAKANO: Strontium isotopic compositions and paleoceanographic implication of fossil
manganese nodules in DSDP/ODP cores, Leg 1-126
J. E. THomas, C. F. Jones, W. M. SKINNER, and R. St.C. Smart: The role of surface sulfur species in the inhibition of pyrrhotite
Se ID 6.0 Wp 60:0 9b 6s 8h 8a ids wOS-40. CRED chee baedhnse kdb eke sc elon 1555
V. BRUCHERT: Early diagenesis of sulfur in estuarine sediments: The role of sedimentary humic and fulvic acids ............ 1567
B. HERuT, I. GAvRIELI, and L. HALicz: Coprecipitation of trace and minor elements in modern authigenic halites from the hypersaline
i eT EE ELE eT CPT PEELE EET OT ee Ey TROT ET Coe POE PT PET PET EI 1587
J. S. SEEWALD, B. C. BENITEZ-NELSON, and J. K. WHELAN: Laboratory and theoretical constraints on the generation and composition
PRT, kit nen 0b 66 4065 eb oee s5 he cee nbs O05 5 eee ee ld ce ae ee ee he Cees 1599
A. BERTHOD, X. WANG, K. H. GAHM, and D. W. ARMSTRONG: Quantitative and stereoisomeric determination of light biomarkers in
ae Ge I Bie ONE 655 Koi iS eRe a2 0'F.0's a sok cay hEh cP he bien bREENERTA Das Lena rabeneaitesbians 1619
G. S. Pokrovsk! and J. ScHott: Thermodynamic properties of aqueous Ge(IV) hydroxide complexes from 25 to 350°C: Implications
for the behavior of germanium and the Ge/Si ratio in hydrothermal fluids ......... 0... ccc cece cece eee eee 1631
J. Besre, T. M. Sewarp, and J. K. Hovey: Spectrophotometric determination of the stability of thallium (I) chloride complexes in
Se SU ETS) cad ad cA Wekcback 0d 6564 0 a0 b8 08047 Ses OF ie eee ae Oe eeho kde tne icnieoneaas 1643
Erratum
M. F. Horan: Erratum to M. F. Horan, M. I. Smoliar, and R. J. Walker (1998) “'8*W and '®’Re-'®’Os systematics of iron meteorites:
Chronology for melting, differentiation, and crystallization in asteroids.” Geochimica et Cosmochimica Acta 62, 545-554 ... 1653
Announcements
Pee Ge ee Ser CINE IED |b gh: od icine ended Ves 56s 6 i08 he bke vas eede s Uns ed 4 pee ee 456s ees eberantesi een 1655
May (Vol. 62, No. 10)
Volume 62, Number 10 May 1998
Articles
Y. Hun, M.-Y. Tso, A. Zartsev, and J. M. EpMonp: The fluvial geochemistry of the rivers of Eastern Siberia: I. Tributaries of the
Lena River draining the sedimentary platform of the Siberian Craton .......... cece cece eee eee eee reece ee eeee 1657
U. SKYLLBERG and O. K. BorRGGAARD: Proton surface charge determination in Spodosol horizons with organically bound aluminum 1677
P. Zuu and J. D. MACDOUGALL: Calcium isotopes in the marine environment and the oceanic calcium cycle ................ 1691
A. M. MartINi, L. M. WALTER, J. M. Bupal, T. C. W. Ku, C. J. Kaiser, and M. SCHOELL: Genetic and temporal relations between
formation waters and biogenic methane: Upper Devonian Antrim Shale, Michigan Basin, USA ............0.c .ee. e.ee e 1699
H. Qina, C. R. BARNES, D. BUHL, and J. VEIZER: The strontium isotopic composition of Ordovician and Silurian brachiopods and
conodonts: Relationships to geological events and implications for coeval seawater «1... eceee ee ene 1721
E. T. WEBER II, R. M. Owen, G. R. Dickens, and D. K. REA: Causes and implications of the middle rare earth element depletion
i I GE Fees PU CIEE bn cn sc teh abled endetiesrepbaceteGbs e00n56e50u00s45s b26a Dese ES 1735
T. M. HoeHLer, M. J. ALPERIN, D. B. ALBERT, and C. S. MARTENS: Thermodynamic control on hydrogen concentrations in anoxic
EE a SA pW Wis as ae b eee o-slet 0 ese pbb be se cbs W5.0 U644 4 64 cid betes eb e ee beer se UCN eee bese eee 1745
P. J. Mutter, G. Kirst, G. RUHLAND, I. von Storcu, and A. ROSELL-MELE: Calibration of the alkenone paleotemperature index US;
based on core-tops from the eastern South Atlantic and the global ocean (60°N-60°S) 6... eee ee eee
S. K. Lower, P. A. MAurice, and S. J. TRAINA: Simultaneous dissolution of hydroxylapatite and precipitation of hydroxypyromor-
SENG: TPSCE SVIGONES GE RORNGURDOUS TCIONION nonce ccc ck cde vetecec ceri escehedbeccebereeeerevetsevencoeanes
R. STALDER, S. F. Fotey, G. P. BREy, and I. Horn: Mineral-aqueous fluid partitioning of trace elements at 900—1200°C and 3.0—5.7
GPa: New experimental data for garnet, clinopyroxene, and rutile, and implications for mantle metasomatism ............. 1781
Z. Xu and J. F. STepBins Oxygen site exchange kinetics observed with solid state NMR in a natural zeolite ............... 1803
S. K. Simakov: Redox state of Earth’s upper mantle peridotites under the ancient cratons and its connection with diamond genesis 1811
M. A. SEPHTON, C. T. PILLINGER, and I. Gi-more: 8'°C of free and macromolecular aromatic structures in the Murchison meteorite
D. D. BoGarp and D. H. Garrison: Relative abundances of argon, krypton, and xenon in the Martian atmosphere as measured in
i i a a gS ile ach kins ke op 464 boa OAS OWE Ph Wh0 0 o:ip 5's SR TEENS bie eeee wee Ke 1829
Announcements
ee ST a oN aE Y PE Ee EL TEES TET OERE ET TC TRREET ET TT EEE EL EERE ERLE ETO TEL EE 1837
The Geochemical Society 1999 Awards Nominations
The Geochemical Society 1999 Officer and Director Candidates
Call for Nominations for the 1999 Joint EAG-GS Geochemistry Fellows
Call for Papers for a Special Issue in Honour of Werner Stumm
June (Vol. 62, No. 11)
Volume 62, Number 11 June 1998
Articles
H. C. Fricke, W. C. Ciype, and J. R. O’NeiL: Intra-tooth variations in 6'*O (PO,) of mammalian tooth enamel as a record of
I EEE EEC TIT ET ECTS TTT Ce Tee ETC EEE OCTET eT ete 1839
J. D. Rimstipt, A. BALOoG, and J. Wess: Distribution of trace elements between carbonate minerals and aqueous solutions ..... 185]
S. GiRAL-Kacmarcik, S. M. Savin, D. B. NAHON, J.-P. GiRARD, Y. Lucas, and L. J. ABEL: Oxygen isotope geochemistry of kaolinite
a s,s, oc bw ib skh Or Week bees ce Wee he W Res bees eeu sb awk ee 6 ghee 1865
H. Dona, D. R. PEAcor, and S. F. MurpHy: TEM study of progressive alteration of igneous biotite to kaolinite throughout a
re CCUG Sie tl Gra coat whe bees 6665.61 he 8455.6 8656S SEKGRETTS OL bade ae OE Ceeb eh 604550 Sed 1881
D. J. Sincvair, L. P. J. KNisLey, and M. T. McCuLLocu: High resolution analysis of trace elements in corals by laser ablation
i cacti See cen es CELERY TES 0 COGN A BERURAE PE RRRS VOEESCEORLESY FObEE LOR EREAEEE ER NE EOtRE TOR EOR ee: 1889
Y. TERAKADO and T. FusiTANi: Behavior of the rare earth elements and other trace elements during interactions between acidic
hydrothermal solutions and silicic volcanic rocks, southwestern Japan... 1. eeeee eee ee ee eeee 1903
C. M. EGGLESTON and G. JoRDAN: A new approach to pH of point of zero charge measurement: Crystal-face specificity by scanning
a Oe aes Sans ap ee aha dK OS ROD ERED KOR END ED 8 Uwe e a PORE bese ba4s brs 1919
R. Fret, TH. F. NAGLER, R. SCHONBERG, and J. D. KRAMERS: Re-Os, Sm-Nd, U-Pb, and stepwise lead leaching isotope systematics
in shear-zone hosted gold mineralization: Genetic tracing and age constraints of crustal hydrothermal activity ............. 1925
H. Zou: Trace element fractionation during modal and nonmodal dynamic melting and open-system melting: A mathematical
eae keh Wan beth see ees 66 OED NE Gh Keak ee eA a RE Kee CAE COR SUN eh A EE es ESL CE 1937
M. J. KOHN and J. W. VALLEY: Oxygen isotope geochemistry of the amphiboles: Isotope effects of cation substitutions in minerals 1947
S. Gao, T.-C. Lou, B.-R. ZHANG, H.-F. ZHANG, Y.-W. HAN, Z.-D. ZHAo, and Y.-K. Hu: Chemical composition of the continental
ee Sok ag CN SER ESS Oa dob oA Soe Dee Vb webu ee SSE EEE Shas sd b45 Cob oe bN eRe 1959
J. M. EiLer, K. A. FARLEY, and E. M. SToLper: Correlated helium and lead isotope variations in Hawaiian lavas
F. M. RICHTER, Y. LIANG, and W. G. MINARIK: Multicomponent diffusion and convection in molten MgO-Al,O,-SiO, _ ....... 1985
W. Hsu and G. Crozaz: Minerial chemistry and the origin of enstatite in unequilibrated enstatite chondrites
S. TACHIBANA and A. TSUCHIYAMA: Incongruent evaporation of troilite (FeS) in the primordial solar nebula: An experimental study
Announcements
Papers to Appear in Forthcoming Issues
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