Deutsch
 
Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Shear wave velocity and Poisson's ratio models across the southern Chile convergent margin at 38°15′S

Ramos Domke, C. M., Mechie, J., Feng, M. (2016): Shear wave velocity and Poisson's ratio models across the southern Chile convergent margin at 38°15′S. - Geophysical Journal International, 204, 3, 1620-1635.
https://doi.org/10.1093/gji/ggv541

Item is

Dateien

einblenden: Dateien
ausblenden: Dateien
:
1443959.pdf (Verlagsversion), 13MB
Name:
1443959.pdf
Beschreibung:
-
Sichtbarkeit:
Öffentlich
MIME-Typ / Prüfsumme:
application/pdf / [MD5]
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Ramos Domke, Catalina Marlene1, 2, Autor              
Mechie, James1, 2, Autor              
Feng, M.2, 3, Autor
Publikationen aller GIPP-unterstützten Projekte, Deutsches GeoForschungsZentrum, Autor              
Affiliations:
12.2 Geophysical Deep Sounding, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_66027              
2GEOFON, Deutsches GeoForschungsZentrum, Potsdam, , ou_2634888              
3External Organizations, ou_persistent22              

Inhalt

einblenden:
ausblenden:
Schlagwörter: Controlled source seismology, Seismic tomography, Computational seismology, South America
 Zusammenfassung: Using active and passive seismology data we derive a shear (S) wave velocity model and a Poisson's ratio (σ) model across the Chilean convergent margin along a profile at 38°15′S, where the Mw 9.5 Valdivia earthquake occurred in 1960. The derived S-wave velocity model was constructed using three independently obtained velocity models that were merged together. In the upper part of the profile (0–2 km depth), controlled source data from explosions were used to obtain an S-wave traveltime tomogram. For the middle part (2–20 km depth), data from a temporary seismology array were used to carry out a dispersion analysis. The resulting dispersion curves were used to obtain a 3-D S-wave velocity model. In the lower part (20–75 km depth, depending on the longitude), an already existent local earthquake tomographic image was merged with the other two sections. This final S-wave velocity model and already existent compressional (P) wave velocity models along the same transect allowed us to obtain a Poisson's ratio model. The results of this study show that the velocities and Poisson's ratios in the continental crust of this part of the Chilean convergent margin are in agreement with geological features inferred from other studies and can be explained in terms of normal rock types. There is no requirement to call on the existence of measurable amounts of present-day fluids, in terms of seismic velocities, above the plate interface in the continental crust of the Coastal Cordillera and the Central Valley in this part of the Chilean convergent margin. This is in agreement with a recent model of water being transported down and released from the subduction zone.

Details

einblenden:
ausblenden:
Sprache(n): eng - Englisch
 Datum: 2016
 Publikationsstatus: Final veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Geophysical Journal International
Genre der Quelle: Zeitschrift, SCI, Scopus, ab 2024 OA-Gold
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 204 (3) Artikelnummer: - Start- / Endseite: 1620 - 1635 Identifikator: CoNE: https://gfzpublic.gfz-potsdam.de/cone/journals/resource/journals180