High-resolution mapping of two large-scale transpressional fault zones in the California Continental Borderland: Santa Cruz-Catalina Ridge and Ferrelo faults

Additional Information

© 2015 American Geophysical Union. 

Acknowledgement

Exploration industry deep penetration seismic profiles released by WesternGeco for research purposes are available in the USGS NAMSS [2006] database. U.S. Geological Survey multibeamsurveys are available in the NAMSS [2006] database and Infobank [2013]. The USGS and WesternGeco do not warrant the use of these data nor make any claims or guarantees as to the accuracy of the data identification, acquisition parameters, processing methods, navigation, or database entries. The 2010 ALBACORE R/V Melville cruise multibeambathymetry data will be made available from the NOAA National Geophysical Data Center archive. The raster images of multibeam bathymetry used for this study will be available from the Southern California Earthquake Data Center with file descriptions provided in Table S1 in the supporting information. Chris Goldfinger provided important high-resolution seismic reflection data and several important multibeam bathymetry swaths from prior surveys. Joann Stock provided important multibeam swaths along the southern Ferrelo fault zone that filled important data gaps. Earthquake location parameters for events with focal mechanisms shown in this paper are presented in Table S2 in the supporting information. Seismicity data are available from the Southern California Earthquake Data Center (www.scedc.caltech.edu/eqcatalogs/) and from Astiz and Shearer [2000]. This work was supported by the National Science Foundation grants OCE-0825254 (MDK) and OCE-0824982 (DSW) and the Southern California Earthquake Center (grants 09094, 11100 and 13091, MRL). SCEC is funded by NSF Cooperative Agreement EAR-1033462 and USGS Cooperative Agreement G12AC20038. The SCEC contribution number for this paper is 1742. We are especially grateful to Alexander Densmore, Paul Umhoefer, Luciana Astiz, Kristin Rohr, and an anonymous reviewer for their thoughtful reviews of themanuscript that helped us to describe more coherently this complex area of active deformation. We thank Chris Sorlien for comments on early drafts of the manuscript and for numerous discussions of Borderland tectonics. Marc Kamerling shared many ideas regarding the Borderland tectonic evolution that helped provide the background for this research. Mike Barth insured that the high-resolution multichannel seismic data were of the highest quality during acquisition. Jason Chaytor's dissertation mapping was an important basis for understanding the subbottom geological structure and its correlation to seafloor morphology. The assistance of the Scripps Geological Data Center in coordinating outbound/inbound cruises to cover new Borderland territory with multibeam swaths during the past three decades is greatly appreciated. Kohler and Weeraratne are grateful to Captain Christopher Curl and the entire crew of R/V Melville for their assistance and flexibility in accommodating the additional multibeam bathymetry data gathering routes during the 2010 ALBACORE cruise.

Attached Files

Published - jgrf20393.pdf

Supplemental Material - jgrf20393-sup-0001-Supplementary.docx

Supplemental Material - jgrf20393-sup-0002-FigureS3.pdf