Guided waves propagating in subducted oceanic crust

We use guided waves traveling updip along the surface of the Nazca slab to image subducted oceanic crust at the Chile‐Peru subduction zone. Observed P onsets of intermediate depth events near 21°S in northern Chile reveal waveguide behavior: with growing focal depth, low‐frequency energy (

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Bibliographische Detailangaben
Veröffentlicht in:	Journal of Geophysical Research. B. Solid Earth 2003-11, Vol.108 (B11), p.ESE8.1-n/a
Hauptverfasser:	Martin, S., Rietbrock, A., Haberland, C., Asch, G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied geophysics Chile-Peru subduction Earth sciences Earth, ocean, space Exact sciences and technology FD modeling guided waves Internal geophysics low-velocity layer Marine Solid-earth geophysics, tectonophysics, gravimetry subducted oceanic crust Tectonics. Structural geology. Plate tectonics
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Beschreibung
Zusammenfassung:	We use guided waves traveling updip along the surface of the Nazca slab to image subducted oceanic crust at the Chile‐Peru subduction zone. Observed P onsets of intermediate depth events near 21°S in northern Chile reveal waveguide behavior: with growing focal depth, low‐frequency energy (
ISSN:	0148-0227 2156-2202
DOI:	10.1029/2003JB002450