Handbook of Physical Constants

Electrical Properties of Rocks and Minerals
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Published:January 01, 1942
Contents | ||
Page | ||
Table 21 | 1. Electrical resistivity of rocks and soils | 304 |
2.1. Electrical resistivity of mineralized rocks | 307 | |
2.2. Electrical resistivity of specular hematite in quartz porphyry | 307 | |
3. Electrical resistivity of metallic sulfides | 308 | |
4. Electrical resistivity of some oxides and miscellaneous minerals | 311 | |
5. Electrical resistivity of hydrocarbons | 313 | |
6.1. Electrical resistivity of natural water | 314 | |
6.2. Electrical resistivity of saline waters | 314 | |
6.3. Effect of water and oil on direct current resistance of sandstone | 315 | |
6.4. Electrical resistivity of wet sand | 315 | |
6.5. Resistivity of soils and sea water measured with high-frequency alternating current | 316 | |
7. Dielectric constant of rocks | 317 | |
8. Dielectric constant of minerals | 318 | |
8.1. Dielectric constant of Rochelle salt, as function of temperature | 318 |
Contents | ||
Page | ||
Table 21 | 1. Electrical resistivity of rocks and soils | 304 |
2.1. Electrical resistivity of mineralized rocks | 307 | |
2.2. Electrical resistivity of specular hematite in quartz porphyry | 307 | |
3. Electrical resistivity of metallic sulfides | 308 | |
4. Electrical resistivity of some oxides and miscellaneous minerals | 311 | |
5. Electrical resistivity of hydrocarbons | 313 | |
6.1. Electrical resistivity of natural water | 314 | |
6.2. Electrical resistivity of saline waters | 314 | |
6.3. Effect of water and oil on direct current resistance of sandstone | 315 | |
6.4. Electrical resistivity of wet sand | 315 | |
6.5. Resistivity of soils and sea water measured with high-frequency alternating current | 316 | |
7. Dielectric constant of rocks | 317 | |
8. Dielectric constant of minerals | 318 | |
8.1. Dielectric constant of Rochelle salt, as function of temperature | 318 |
ELECTRICAL RESISTIVITY
(1) Electrolytic conductors.—The electrical conductivity of rocks and soils in place is generally due almost entirely to the moisture content. With some exceptions, the solid minerals which constitute the rock or soil are good insulators. Thus, the conductivity is not an essential property of the rock or rock type; it depends not only upon the capacity of the rock to absorb water and upon the kind and structure of its pore spaces, but also upon the amount and composition of the water retained. Hence, the conductivity may depend to an important extent upon the accident of the geological and climatic environment in which the material happens to find itself. It follows that resistivities tabulated in the literature should not be used to predict the . . .
- clastic rocks
- clastic sediments
- coal
- dielectric constant
- electrical conductivity
- electrical properties
- hematite
- igneous rocks
- minerals
- oxides
- petroleum
- quartz porphyry
- resistivity
- rhyolites
- salt water
- sand
- sandstone
- sea water
- sedimentary rocks
- sediments
- soils
- sulfides
- temperature
- volcanic rocks
- water