Clays and Clay Minerals

Volume 44 Number 3 June 1996

Contents

Interrelated Features of Structure and Stacking of Kaolin Mineral Layers

B. B. Zvyagin and V. A. Drits 297

Evolution of Illite/Smectite from Early Diagenesis through Incipient Metamorphism in Sediments of the Basque-Cantabrian Basin

F. Nieto, M. Ortega-Huertas, D. R. Peacor, and J. Arostegui 304

Diagenesis of Oligocene Vitric Tuffs to Zeolites, Mexican Volcanic Belt

Liberto de Pablo-Galán and María de L. Chávez-García 324

Clay-Mineral Provenance, Sediment Dispersal Patterns, and Mudrock Diagenesis in the Nankai Accretionary Prism, Southwest Japan

Michael B. Underwood and Kevin T. Pickering 339

Dickite, Nacrite and Possible Dickite/Nacrite Mixed-Layers from the Betic Cordilleras (Spain)

M. D. Ruiz Cruz 357

Molecular Structure Effects on Diffusion of Cations in Clays

Alanah Fitch, John Song, and Jenny Stein 370

Effect of Clay Type on the Diffusional Properties of A Clay-Modified Electrode

Jennifer A. Stein and Alanah Fitch 381

Active Components in Clay Condensates and Extracts as Potential Geocatalysts

L. Heller-Kallai, T. P. Goldstein, and A. Navrotsky 393

Angle-Resolved X-ray Photoelectron Studies of Cleavage in Chlorites

Stephen Evans and Anthony G. Hiorns 398

Origin of Cretaceous and Oligocene Kaolinites from the Iwaizumi Clay Deposit, Iwate, Northeastern Japan

C. Mizota and F. J. Longstaffe 408

Effects of Acidity on the Hydrothermal Synthesis of Kaolinite from Silica-gel and Gibbsite

Shigeo Satokawa, Ritsuro Miyawaki, Yasushi Osaki, Shinji Tomura, and Yasuo Shibasaki 417

Notes

Adsorption of Melted Drugs onto Smectite

Carmen del Hoyo, Vicente Rives, and Maria Angeles Vicente 424

XRD Identification of Two Coexisting Mixed Layer Expandable Minerals in Sedimentary Rocks

M. Gharrabi, B. Velde and J-P Sagon 429