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Folds--Offshore of Gaviota Map Area, California

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: May 05, 2026 at 08:08 PM | Dataset Last Updated: October 14, 2021 at 12:00 AM
This part of DS 781 presents fold data for the geologic and geomorphic map of the Offshore of Gaviota map area, California. The vector data file is included in "Folds_OffshoreGaviota.zip," which is accessible from https://doi.org/10.5066/F7TH8JWJ. In the offshore part of the map area, closely-spaced seismic-reflection profiles image many shallow, west-northwest striking folds that have variable geometry, length, amplitude, continuity, and wavelength. The two longest folds, the 17-km-long Molino anticline and the 22-km-long Government Point syncline, are truncated by the south strand of the Santa Ynez fault to the west and east, respectively. These regionally extensive folds and many shorter, west-trending structures are probably rooted in blind thrusts and backthrusts in the hanging wall above the Pitas Point-North Channel fault system.

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