Ultralow velocity zone and deep mantle flow beneath the Himalayas are linked to a subducted slab

Ultralow velocity zone and deep mantle flow beneath the Himalayas are linked to a subducted slab

Through the detection of postcursors of shear waves diffracted at the core–mantle boundary, a zone of ultralow seismic velocities has been identified at the base of the mantle beneath the Himalayas. The presence of this zone is probably linked to a subducted slab remnant that is driving mantle flow...

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Veröffentlicht in:Nature geoscience 2024-04, Vol.17 (4), p.285-286
Format: Artikel
Sprache:eng
Schlagworte:
704/2151/210
704/2151/508
Anisotropy
Earth
Earth and Environmental Science
Earth science
Earth Sciences
Earth System Sciences
Geochemistry
Geology
Geophysics/Geodesy
Research Briefing
S waves
Seismic velocities
Subduction (geology)
Velocity
Wave diffraction
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Beschreibung
Zusammenfassung:Through the detection of postcursors of shear waves diffracted at the core–mantle boundary, a zone of ultralow seismic velocities has been identified at the base of the mantle beneath the Himalayas. The presence of this zone is probably linked to a subducted slab remnant that is driving mantle flow in the region.
ISSN:1752-0894
1752-0908
DOI:10.1038/s41561-024-01387-4