THE HOT BELT OF THE EARLY EARTH AND PRESE NT-DAY MANTLE GEODYNAMICS BASED ON SEISMIC TOMOGRAPHY DATA

Authors
GLUKHOVSKY MZ MORALEV VM
Citation
Mz. Glukhovsky et Vm. Moralev, THE HOT BELT OF THE EARLY EARTH AND PRESE NT-DAY MANTLE GEODYNAMICS BASED ON SEISMIC TOMOGRAPHY DATA, Geologia i geofizika, 39(1), 1998, pp. 3-10
Citations number
44
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Geologia i geofizika → ACNP
ISSN journal
00167886
Volume
39
Issue
1
Year of publication
1998
Pages
3 - 10
Database
ISI
SICI code
0016-7886(1998)39:1<3:THBOTE>2.0.ZU;2-3
Abstract
Published results of the seismic tomography of the entire Earth's mant le were used for calculating areas of propagation of slow P-wave anoma lies corresponding to a relatively hot mantle. The calculation was car ried out within latitudinal intervals of 10 degrees for 14 levels from 78.1 to 2900 km in depth. The results obtained show the predominance (58-86%) of hot mantle fields within the subequatorial belt at a depth below 1000 km. This hot belt is considered as a relic of the Early Pr ecambrian plume-tectonic stage of the Earth's evolution.