American Mineralogist, 2004, V 89, N 8-9, August-September.

 LETTERS 

1337 
Novel high-pressure behavior in chlorite: 
A synchrotron XRD study of clinochlore to 27 GPa 
Mark D. Welch, Annette K. Kleppe, and Andrew P. Jephcoat 

1341 
Periodic precipitation pattern formation in hydrothermally
treated metamict zircon 
Thorsten Geisler, Anne-Magali Seydoux-Guillaume, 
Michael Wiedenbeck, Richard Wirth, Jasper Berndt, 
Ming Zhang, Boriana Mihailova, Andrew Putnis,
Ekhard K.H. Salje, and Jochen Schluter 

1348 
A high pressure X-ray diffraction study of aragonite
and the post-aragonite phase transition in CaCO3 
Javier Santillan and Quentin Williams 

CLATHRATE HYDRATES PAPERS 

1153
Preface to the Clathrate Hydrates special issue 
Bryan C. Chakoumakos 

1155 
Introductory overview: Hydrate knowledge development 
E. Dendy Sloan 

1162
Scanning Electron Microscopy investigations of 
laboratory-grown gas clathrate hydrates formed
from melting ice, and comparison to natural hydrates 
Laura A. Stern, Stephen H. Kirby, Susan Circone, 
and William B. Durham 

1176 
Dynamics of trimethylene oxide in a structure
II clathrate hydrate 
C. Y. Jones and I. Peral 

1183 
The stability of methane hydrates in highly 
concentrated electrolyte solutions by differential 
scanning calorimetry and theoretical computation 
Didier Dalmazzone, Daniele Clausse, 
Christine Dalmazzone, and Benjamin Herzhaft 

1192 
The effect of elevated methane pressure on
methane hydrate dissociation 
Susan Circone, Laura A. Stern, and Stephen H. Kirby 

1202 
Methane hydrate formation in partially 
water-saturated Ottawa sand 
W.F. Waite, W.J. Winters, and D.H. Mason 

1208 
Methanol—inhibitor or promoter of the formation
of gas hydrates from deuterated ice? 
Svilen Bobev and Kimberly T. Tait 

1215 
Investigating the performance of clathrate hydrate
inhibitors using in situ Raman spectroscopy 
and differential scanning calorimetry 
Angela Carstensen, Jefferson L. Creek, 
and Carolyn A. Koh 

1221 
Physical properties and rock physics models
of sediment containing natural and 
laboratory-formed methane gas hydrate 
William J. Winters, Ingo A. Pecher, 
William F. Waite, and David H. Mason 

1228
Experimental studies on the formation 
of porous gas hydrates 
Georgi Genov, Werner F. Kuhs, Doroteya K. Staykova, 
Evgeny Goreshnik, and Andrey N. Salamatin 

1240 
Investigation of jet breakup and droplet size 
distribution of liquid CO2 and water systems—
implications for CO2 hydrate formation 
for ocean carbon sequestration 
David Riestenberg, Elizabeth Chiu, Monsuru Gborigi, 
Liyuan Liang, Olivia R. West, and Costas Tsouris 
  
1247 
Measurement of clathrate hydrate precipitation
from CO2 solution by a nondestructive method 
Yongchen Song, Baixin Chen, Masahiro Nishio,
and Makoto Akai 

1254
Influence of water thermal history and overpressure
on CO2-hydrate nucleation and morphology 
O.Y. Zatsepina, D. Riestenberg, S.D. McCallum, 
M. Gborigi, C. Brandt, Bruce A. Buffett, and T.J. Phelps 

1260 
Growth-controlling processes of CO2 gas hydrates 
S. Hirai and H. Sanda 

1264 
Thermodynamic prediction of clathrate hydrate 
dissociation conditions in mesoporous media 
Maria Llamedo, Ross Anderson, and Bahman Tohidi 

1271 
Modeling dynamic marine gas hydrate systems 
Wenyue Xu 

ARTICLES 

1280
Late-stage, high-temperature processesing
in the Allende meteorite: Record from
Ca,Fe-rich silicate rims around dark inclusions 
Frank E. Brenker and Alexander N. Krot 

1290
Partitioning of Sr, Ba, Rb, Y, and LREE between
alkali feldspar and peraluminous silicic magma 
Minghua Ren 

1304 
Nondestructive three-dimensional element-concentration
mapping of a Cs-doped partially molten granite 
by X-ray computed tomography using 
synchrotron radiation 
Susumu Ikeda, Tsukasa Nakano, Akira Tsuchiyama, 
Kentaro Uesugi, Yoshio Suzuki, Ko-ichi Nakamura,
Yoshito Nakashima, and Hideto Yoshida 

1314 
A theoretical study of structural factors correlated
with 23Na NMR parameters 
Yun Liu, John Tossell, and Hanna Nekvasil 

1323 
Metamorphic formation of Sr-apatite and Sr-bearing
monazite in a high pressure rock from
the Bohemian Massif 
Erwin Krenn and Fritz Finger 

1330 
Ultra-deep origin of garnet peridotite from the 
North Qaidam ultrahigh-pressure belt, 
Northern Tibetan Plateau, NW China 
Shuguang Song, Lifei Zhang, and Yaoling Niu 

1352 ERRATUM 
Hydrogen solubility and speciation in natural, 
gem-quality chromian diopside 
Geoffrey D. Bromiley, Hans Keppler, 
Catherine McCammon, Fiona A. Bromiley, 
and Steven D. Jacobsen