GEOLOGIYA I GEOFIZIKA, 1999, V 40, N 4, April.

Neruchev S. G. Periodicity of great geologic and biologic
events in the Phanerozoic   
493

Khomentovsky O. V., Zakharov V. A., Lebedeva N. K., and
Vorob'eva O. I. Santonian-Campanian boundary in the north of
Siberia 
512

Bobrov V. A., Kalugin I. A., Clerx(??) G., Duchkov A. D.,
Shcherbov B. L., and Stepin A. S. The rate of recent
sedimentation in Lake Teletskoe according to
gamma-spectroscopy (137Cs) data  
530

Kotel'nikov D. D. and Solodkova N. A. Change of the
sedimentation microstructures of clay deposits during
lithogenesis 
537

Kazanskii A. Yu., Metelkin D. V., Kungurtsev L. V., and
Lavrenchuk A. V. New paleomagnetic data on the Early
Cambrian of West Sayan 
545

Litasov K. D. and Litasov Yu. D. Origin of garnet-spinel
lherzolite xenoliths from Plio-Pleistocene basanites of the
Vitim volcanic field   
563

Bragin V. Yu., Reutskii V. N., Litasov K. D., and Mal'kovets
V. G. Late Cretaceous intraplate magmatic event in the
North-Minusinsk depression: paleomagnetic and 40Ar/39Ar
Evidence
576

Gordienko I. V., Bayanov V. D., Klimuk V. S., Ponomarchuk V.
A., and Travin A. V. The composition and 39Ar/40Ar age of
volcanogenic rocks of the Chikoi-Khilok taphrogenic trough
in Transbaikalia  
583

Savko K. A. and Skryabin V. Yu. Petrology of
forsterite-clinohumite marbles of the Voronezh Crystalline
Massif  
592

Vosel' S. V. and Kalinin D. V. Thermodynamic analysis of
formation of crystal-like noble-opal structures 
606

Mashinskii E. I., Koksharov V. Z., and Nefedkin Yu. A.
Amplitude-dependent effects caused by small seismic
deformations 
615

Khomutov S. Yu. The relationship between the acceleration of
the Earth's axial rotation and regional and global
seismicity   
623

Mogilatov V. S., Epov M. I., and Isaev I. O. Tomographic
inversion of TEM data  
637

BRIEF COMMUNICATIONS

Podlipskii M. Yu., Sidorov E. G., Tolstykh N. D., and
Krivenko A. P. Cobalt-bearing malanite and other
Pt-thiospinels from the Maior River placers (Kamchatka)   
645

PERSONALIA

Boris Sergeevich Sokolov (to the 85th anniversary)   
649