Contents
Transactions (Doklady) of the Russian Academy of Sciences/Earth Science Section

Vol. 349, No. 5, 1996

English language translation of the journal is available from / Interperiodica Publishing (Russia).
Transactions (Doklady) of the Russian Academy of Sciences / Earth Science Sections ISSN 0012-494X.

Translated from Doklady Akademii Nauk, Volume 348, Nos. 5–6, Volume 349, Nos. 1–2, 1996

Volume 348–349, June.

Part 1. Geology Sciences

Some Physical Properties of Quartzose Sandstones of Dagestan

A. S. Batyrmurzaev, A. A. Guseinov, and G. I. Alibekov p. 713  abstract

Jewelry Datolite from the Avam River Basin, Northwest Siberian Platform

Yu. R. Vasil’ev , O. N. Laguta , V. G. Pavlov , and A. Ya. Shevko p. 716  abstract

Rb–Sr Isotope Evidence for Multi-Stage Illite Evolution in Upper Proterozoic Shales

I. M. Gorokhov p. 719  abstract

Platinoid Placer of the Ingaringda River, Northern Part of Eastern Siberia

K. N. Malitch p. 723  abstract

Possible Oil and Gas Potential of the Congo Syneclise, Zaire

B. A. Sokolov and A. Kh. Bogomolov p. 728  abstract

The Structure of the Transverse Rise at the Passive Segment
of the Romanche Fracture Zone

V. N. Efimov, S. Yu. Sokolov, P. N. Efimov, L. Gasperini, and M. Ligi p. 733  abstract

Potassium Pyroxene Relics in Diamond-free Pyroxene-Garnet Rocks
of the Kokchetav Massif, Northern Kazakhstan

L. L. Perchuk, N. V. Sobolev, V. S. Shatskii, and V. O. Yapaskurt p. 737  abstract

The Chukchi Transform Geosuture and the Tectonic Evolution of Northeastern Asia

V. K. Rotman p. 743  abstract

Cuspidine in Melilitolites of San Venanzo, Italy

V. V. Sharygin, F. Stoppa, and B. A. Kolesov p. 747  abstract

Gneissic Arches and Early Cretaceous Riftogenesis in the Trans-Baikal Region

Yu. A. Zorin, E. V. Sklyarov, V. G. Belichenko, and A. M. Mazukabzov p. 752  abstract

Discharge Signs of Early Cenozoic Hydrotherms on the Russian Platform

K. G. Kaleda, Yu. G. Tsekhovskii, V. I. Murav’ev, A. I. Suvorov, and D. A. Babushkin p. 756  abstract

The Age of Siliceous and Volcanogenic-Siliceous Deposits
in the Lemvin Zone of the Polar Urals

S. V. Ruzhentsev, M. M. Gaptulkadyrov, and V. A. Aristov p. 760  abstract

Bowl-shaped Materikov Deposit, Siberian Platform:
A Unique Object of Clastic Magnetite Ores

G. S. Fon-der-Flaass and V. A. Naumov p. 763  abstract

Tectonic Windows on the Western Shore of Lake Baikal

V. K. Aleksandrov, A. A. Bukharov, and V. D. Mats p. 768  abstract

Late Cretaceous Potassium Basic Rocks
of the Dal’neogorsk Ore District, Primorsk Region

V. A. Baskina and T. P. Nikolaeva p. 771  abstract

Redledgeite from Saranov Chromite Deposits: The First Find in Russia

O. K. Ivanov, A. F. Bushmakin, and N. V. Chukanov p. 775  abstract

Tantaliferous Rare-Metal Granites: Peculiarities of Mapping in Gravity and Magnetic Fields

E. N. Lishnevskii p. 779  abstract

The Dynamics of Global Diversity of Supergeneric Groupings of Proterozoic Stromatolites

M. E. Raaben and M. A. Semikhatov p. 784  abstract

Epithermal Gold–Silver Deposits of the Pacific Ore Belt

A. A. Sidorov p. 789  abstract

Part 2. Geochemistry, Geophysics, Oceanology, Geography

Optimal Computation of Partial Mixing Energies for Multisite Solid Solutions

T. V. Gerya and L. L. Perchuk p. 793  abstract

Alkaline Magmatism in the Earth’s History and Evolution of Mantle Fluid Regime

L. N. Kogarko p. 796  abstract

First Data on Features of Paramagnetic Centers in Diamond Crystals
from Kimberlites of the Archangel Province

R. M. Mineeva, L. V. Bershov, A. V. Speranskii, S. V. Titkov, and G. P. Kudryavtseva p. 799  abstract

Variation of Empirical Strouhal Numbers in Detached Flows

G. M. Degtyarev, E. A. Karpichenko, and S. E. Karpichenko p. 802  abstract

Tidal Variations in the Length of Day, Year and Synodic Month

B. A. Kagan p. 804  abstract

Basic Magnetohydrodynamic States of the Earth’s Core

S. V. Starchenko p. 808  abstract

Marginal Formations of the Late Valdai Glaciation Stage in the Kola Peninsula
and Northern Sector of the White Sea Basin

V. Ya. Evzerov p. 812  abstract

The Geothermal Plume at 29°N on the Mid-Atlantic Ridge, Expedition BRAVEX-94

V. N. Lukashin, A. P. Lisitsyn, G. V. Ivanov, V. A. Kravtsov, and V. Yu. Rusakov p. 814  abstract

Study of the Dynamics of Solitary Oceanic Eddies

A. G. Novitskii p. 819  abstract

Genesis of the Au–Sb Deposits of the Yana–Kolyma Belt

I. Ya. Nekrasov p. 823  abstract

Crystalochemical Features of Natural Compounds with Trivalent Arsenic

L. K. Yakhontova, V. V. Zuev, and A. P. Grudev p. 827  abstract

Symmetric Stability of the Cyclostrophic and Geostrophic
Balance States in a Stratified Medium

M. V. Kalashnik and P. N. Svirkunov p. 829  abstract

Atmospheric Electric Field and Natural Electromagnetic Radiation:
Mesurements prior to the Kamchatka Earthquake, November 13, 1993, M = 7.0

O. P. Rulenko, G. I. Druzhin, and E. F. Vershinin p. 832  abstract

Formation of Planetary Maxima of CH₄ and CO₂ in the Atmosphere:
The Role of Arctic Aquatic and Terrestrial Ecosystems

I. P. Semiletov p. 835  abstract

Hierarchy of the Present-Day Block Structure
of the Indian Shield and Its Orogenic Framework

E. Ya. Rantsman, M. P. Glasko, and A. I. Gorshkov p. 839  abstract

Sedimentary Material Streams in the Norwegian Sea: Data
from the Year-Round Sediment-Traping Station

V. N. Lukashin, M. E. Vinogradov, V. Yu. Gordeev, and V. Yu. Rusakov p. 844  abstract

Rare Earth Elements in Granites and Pegmatites of the Baikal Region

V. A. Bobrov, V. M. Makagon, and B. M. Shmakin p. 848  abstract

U–Pb Zircon Age of the Hypersthene Diorites and Granodiorites of Pon’gom-Navolok Island
(Baltic Shield, White Sea Tectonic Zone)

O. A. Levchenkov, T. F. Zinger, V. L. Duk, S. Z. Yakovleva,
V. S. Baikova, I. K. Shuleshko, and D. I. Matukov p. 852  abstract

Cesium-137 Distribution in Soils of the Baikal Region

V. I. Medvedev, N. A. Kitaev, A. A. Myasnikov, M. I. Kuz’min,
P. V. Koval’, and A. N. Falileev p. 855  abstract

Upper Temperature Boundary of Datolite Stability

I. Ya. Nekrasov p. 859  abstract

Probabilistic Formal Seismodynamics: I. Fundamental Concepts

G. A. Gusev and I. L. Gufel’d p. 862  abstract

Basic Regularities of Intradiurnal Wind Variations
in the Lower Thermosphere over the South Pole

Yu. I. Portnyagin, J. M. Forbes, N. A. Makarov, and E. G. Merzlyakov p. 866  abstract

Generalization of the Ertel Hydrodynamic Theorem

J. Seko Santos, A. Kalvo Redondo, and E. S. Kazimirovskii p. 868  abstract

Climatic Changes in the Upper and Middle Atmosphere

A. I. Semenov, N. N., Shefov, L. M. Fishkova, E. V. Lysenko,
S. P. Perov, G. V. Givishili, L. N. Leshchenko, and N. P. Sergeenko p. 870  abstract

Redox Potential of Hydrothermal Systems in Granitic Rocks

N. P. Laverov, B. N. Ryzhenko, and V. L. Barsukov p. 873  abstract

Helium Isotopes in Mud Volcano Gases in Taman

B. G. Polyak, V. Yu. Lavrushin, I. L. Kamenskii, E. M. Prasolov, and V. A. Il’in p. 878  abstract

The Influence of Technogenic Electrical Fields on the Corrosion
of Underground Constructions (with the Territory of Moscow as an Example)

L. V. Bakhireva, N. S. Prosuntsova, and E. B. Smirnova p. 882  abstract

Statistical Characteristics of the Methane Stream Evolved
by the Underlying Swampy Surface

A. I. Borodulin, G. A. Makhov, B. M. Desyatkov, and S. R. Sarmanaev p. 885  abstract

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