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GEONICS .

CONTENTS:

INTRODUCTION

RESISTIVITY / CONDUCTIVITY

FACTORS AFFECTING TERRAIN CONDUCTIVITY

Soil constituents

Formation of soils and soil profiles

Soil moisture

ELECTRICAL CONDUCTIVITY OF SOILS AND ROCKS

Properties of electrolites

Conductivity of saturated clean (clay-free) mixtures

Conductivity of unsaturated clean mixtures

Electrical layering arising from soil miosture

Colloidal conductivity

Effects of freezing on soil conductivity

Electrical properties of rocks

EXAMPLES OF CONVENTIONAL MEASUREMENTS OF SOIL AND ROCK RESISTIVITIES

Temperature zones

Tropical humid zones

Tropical arid zones

Arctic zones

SUMMARY

 
 
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