|
View: |
Part 1: Document Description
|
|
Citation |
|
|---|---|
|
Title: |
Copiapó_Experiment_Catalogue |
|
Identification Number: |
doi:10.34691/FK2/91GHJE |
|
Distributor: |
Repositorio de datos de investigación de la Universidad de Chile |
|
Date of Distribution: |
2022-01-20 |
|
Version: |
2 |
|
Bibliographic Citation: |
Pastén, Francisco, 2022, "Copiapó_Experiment_Catalogue", https://doi.org/10.34691/FK2/91GHJE, Repositorio de datos de investigación de la Universidad de Chile, V2, UNF:6:EqHO6fRB2jndKVp7ubQlqQ== [fileUNF] |
|
Citation |
|
|
Title: |
Copiapó_Experiment_Catalogue |
|
Identification Number: |
doi:10.34691/FK2/91GHJE |
|
Authoring Entity: |
Pastén, Francisco (Universidad de Chile) |
|
Distributor: |
Repositorio de datos de investigación de la Universidad de Chile |
|
Access Authority: |
Pastén, Francisco |
|
Access Authority: |
Potin, Bertrand |
|
Access Authority: |
Azúa, Kellen |
|
Access Authority: |
Ruiz, Sergio |
|
Depositor: |
Pastén, Francisco |
|
Date of Deposit: |
2021-10-09 |
|
Holdings Information: |
https://doi.org/10.34691/FK2/91GHJE |
|
Study Scope |
|
|
Keywords: |
Earth and Environmental Sciences, Sismicidad |
|
Abstract: |
The subduction of different features such as oceanic ridges, fractures zones or seamounts are important for the accurate characterization of subduction zones. These structures may affect the along-dip variability of seismic behavior and eventually trigger slow earthquakes. Here we studied the along- dip influence of the Copiapó ridge subduction in the Atacama region, North-Central Chile, an area where seismic swarms, low coupling values and slow earthquakes have been reported. We built a seismic catalog including repeating earthquakes and non-volcanic tremors (NVT), and performed a 3-D tomography for P-wave velocity and Vp/Vs ratio. We identify along-dip segmentation involving 4 distinct segments: (1) a locked seismogenic zone (20 to 35 km depth), hosting ordinary clustered micro-seismicity and repeating earthquakes; (2) a transition zone (35 to 42 km) with non-volcanic tremor and low seismicity; (3) a zone (42 to 60 km) without seismicity and with slow-slip events and (4) a deep zone with more abundant seismicity. The velocity models show differences among these zones: while low velocity anomalies of Vp and Vs, and Vp/Vs ratio between 1.76 and 1.82 are observed in the deep zone, higher velocities are present in the other areas. These features indicate that SSE are located in a zone with higher pore fluid pressure. We propose that these geodynamic differences are generated by the subduction of heterogenic seamounts associated to the Copiapó ridge. |
|
Notes: |
Se recomiendo utilizar el programa Generic Mapping Tool (GMT) para la visualización de los datos. |
|
Methodology and Processing |
|
|
Sources Statement |
|
|
Data Access |
|
|
Other Study Description Materials |
|
|
File Description--f497 |
|
|
File: NVTs.tab |
|
|
|
|
Notes: |
UNF:6:EqHO6fRB2jndKVp7ubQlqQ== |
|
List of Variables: | |
|
Variables |
|
|
f497 Location: |
Variable Format: character Notes: UNF:6:tABbcVFLARr+vJrMEp8VKg== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:Uy1ToGkt3aYG2YSFYgIyiQ== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:VOZCQzJC/uYWNpG+z2VwQQ== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:rBRQZg8xkOkSqi6Ot1WaPQ== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:BUOV12zm1owbrOzskQ9puQ== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:7f2F2zThNukULorCr3UhzA== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:9G+sow7esmAoWMa5BJnCcA== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:kzwwE6uG20Od8e6IHd7B+A== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:MO5WgJMfov4x+uJrWGJ78g== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:Iup6BUuSQ+nJogEn7ZEGmw== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:21TIxisAwuq1u3LtW7bDSA== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:XUL6f5MLCBgdpVpUxN3oIg== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:fDEnZgS5dNTv+oLvvNOXew== |
|
f497 Location: |
Summary Statistics: Valid 0.0; Mean NaN; Max. NaN; Min. NaN; StDev NaN Variable Format: numeric Notes: UNF:6:tXzOrFJD6nc9725Klttb2A== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:WfhpWJuZ9qQbztsi/IPrqg== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:RVxwXO2fPsDcxBudbI4KWA== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:opzf1k95ICN8S1Sv0E5DZQ== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:tDHF1QxTZ9HeZdc9cB/r2Q== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:cWe3ESRAjOj0cDOQLwZUKQ== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:r+O5DbesN4AxnfRLDHjEig== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:SbaXOzRqmsUVbBY0vaqDtQ== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:mzaQpHAJCBYPQs+QAxsbbw== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:s8ZTxaRlqpilcfSwjK6HIg== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:OqgUSoPAH5QIZ88yhazGfQ== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:qYgFmaknQmLAiayeBfkbcw== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:em2rjjWlFQE9rrOMYesjIw== |
|
f497 Location: |
Variable Format: character Notes: UNF:6:nXwU3xPllm9umk+XprJvEA== |
|
Label: |
Cluster_Similar_Events_Catalog.txt |
|
Notes: |
text/plain |
|
Label: |
Copiapo_Experiement_catalogue.txt.txt |
|
Notes: |
text/plain |
|
Label: |
NVTs_Catalog.txt |
|
Notes: |
text/plain |
|
Label: |
data_Copiapo_autoPicks.insl |
|
Notes: |
application/octet-stream |
|
Label: |
data_Copiapo_manuPicks.insl |
|
Notes: |
application/octet-stream |
|
Label: |
stations_Copiapo.sta |
|
Notes: |
application/octet-stream |