Electrical resistance measurements, thin-section, chemical, thermal differential, and thermal gravimetrical analyses were applied to dunites of different serpentinization degrees (from 0 to 100%, at 1–4% interval) from the Nizhnii Tagil dunite-clinopyroxenite massif in the Ural PGE-bearing belt (Solovieva Gora). The obtained functions show temperature-dependent behavior of electrical resistance in the range of 20 to 800 °C and a dependence of the activation energy of ions on the degree of early serpentinization of dunites. The serpentinization-dependent activation energy shows no resistance dependence at room temperature but is proportional to resistance temperature coefficient lg R0 (R0 is equal to resistance at 1 /T → 0, T is temperature in K) in the temperature ranges of impurity-bearing (150–300 °C) and pure (350–600 °C) serpentinites.
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Research Article|
October 01, 2002
VARIATIONS IN ELECTRICAL RESISTANCE OF DUNITES AS A FUNCTION OF TEMPERATURE AND SERPENTINIZATION DEGREE (example of Urals)
L.D. Bulykin
L.D. Bulykin
*
Ural Geological Survey, 55 ul. Vainera, Ekaterinburg, 620001, Russia
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V.V. Bakhterev
L.D. Bulykin
*
Ural Geological Survey, 55 ul. Vainera, Ekaterinburg, 620001, Russia
Publisher: Novovsibirsk State University
Received:
20 Mar 2001
Accepted:
05 Feb 2002
First Online:
29 Oct 2022
Online ISSN: 1878-030X
Print ISSN: 1068-7971
© 2002 UIGGM, SIBERIAN BRANCH OF THE RAS
UIGGM, SIBERIAN BRANCH OF THE RAS
Russ. Geol. Geophys. (2002) 43 (10): 960–967.
Article history
Received:
20 Mar 2001
Accepted:
05 Feb 2002
First Online:
29 Oct 2022
Citation
V.V. Bakhterev, L.D. Bulykin; VARIATIONS IN ELECTRICAL RESISTANCE OF DUNITES AS A FUNCTION OF TEMPERATURE AND SERPENTINIZATION DEGREE (example of Urals). Russ. Geol. Geophys. 2002;; 43 (10): 960–967. doi:
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Index Terms/Descriptors
- activation energy
- Central Urals
- chrome spinel
- Commonwealth of Independent States
- cores
- dehydration
- dunite
- electrical conductivity
- igneous rocks
- instruments
- laboratory studies
- lizardite
- magnetite
- metal ores
- metals
- metasomatism
- mineral composition
- mineral exploration
- oxides
- peridotites
- petrography
- platinum group
- platinum ores
- plutonic rocks
- resistivity
- Russian Federation
- serpentine group
- serpentinization
- sheet silicates
- silicates
- Sverdlovsk Russian Federation
- temperature
- thermal analysis data
- thin sections
- ultramafics
- Urals
- Nizhny Tagil Russian Federation
- Solovieva Gora
Latitude & Longitude
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