Journal of Geology & Geophysics
Open Access
ISSN: 2381-8719
+44 1478 350008
ISSN: 2381-8719
+44 1478 350008
Kuskov OL
Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences,
Kosygin Str. 19, 119991 Moscow B-334
Serbia
Research Article
Thermodynamic-Geophysical Modeling of the Interior Structure of the Siberian Cratonic Mantle along Cross-Cutting Profiles Kimberlite and Meteorite
Author(s): Kuskov OL, Kronrod VA and Pavlenkova NIKuskov OL, Kronrod VA and Pavlenkova NI
Using a thermodynamic-geophysical approach, we map the 2-D interior structure of the Siberian cratonic mantle along the ultra-long cross-cutting seismic profiles Kimberlite and Meteorite carried out in Russia with peaceful nuclear explosions. There is a systematic decrease in temperature from west to east for the Kimberlite profile and a weak decrease from NW to SE for the Meteorite profile. Cratonic mantle shows a significant heterogeneity in the distribution of seismic velocities, temperature and density, topography of seismic boundaries and degree of layering at depths up to ~200 km reflecting somewhat different thermal state along both seismic profiles. Temperatures in the central part of the craton are somewhat lower than those at the periphery and 300-400°C lower than the average temperature in the surrounding mantle. A change of composition from depleted to fertile material.. View More»
DOI:
10.4172/2329-6755.1000155