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This part of DS 781 presents data for the geologic and geomorphic map of the Offshore of Point Conception Map Area, California. The vector data file is included in "Geology_OffshorePointConception.zip," which is accessible from https://doi.org/10.5066/F7QN64XQ. Marine geology and geomorphology were mapped in the Offshore of Point Conception map area from the shoreline to the 3-nautical-mile limit of California's State Waters. The location of the shoreline, whi ch is from the National Oceanic and Atmospheric Administration's (NOAA's) Shoreline Data Explorer, is based on their analysis of lidar data (National Geodetic Survey, 2016). Offshore geologic units were delineated on the basis of integrated analyses of adjacent...
This part of DS 781 presents data for the habitat map of the Offshore of Gaviota Map Area, California. The vector data file is included in "Habitat_OffshoreGaviota.zip," which is accessible from https://doi.org/10.5066/F7TH8JWJ. This map shows physical marine benthic habitats in the Offshore of Gaviota map area. Marine benthic habitats represent a particular type of water quality, substrate, geomorphology, seafloor process, or any other attribute that may provide a habitat for a specific species or an assemblage of organisms. Marine benthic habitats are classified using the Coastal and Marine Ecological Classification Standard (CMECS), developed by representatives from a consortium of federal agencies. CMECS is...
This part of DS 781 presents data for the geologic and geomorphic map of the Offshore of Gaviota Map Area, California. The vector data file is included in "Geology_OffshoreGaviota.zip," which is accessible from https://doi.org/10.5066/F7TH8JWJ. The offshore portion of the Gaviota map area largely consists of a narrow (4- to 5-km-wide), gently (about 1 degree to 1.5 degrees) offshore-dipping shelf, underlain by Neogene bedrock and Holocene sediments derived primarily from Gaviota Creek and smaller coastal watersheds draining the Santa Ynez Mountains (fig. 1-2). Holocene nearshore and shelf deposits are primarily sand (unit Qms). More coarse-grained sediments (unit Qmsc) are mainly found along the Gaviota bar, a prominent...
This part of DS 781 presents fault data for the geologic and geomorphic map of the Offshore of Gaviota map area, California. The vector data file is included in "Faults_OffshoreGaviota.zip," which is accessible from https://doi.org/10.5066/F7TH8JWJ. The southwest-striking south strand of the Santa Ynez fault obliquely cuts the shelf in the western part of the map area. As mapped onshore by Dibblee (1950, 1988a) this fault is unique among Santa Barbara fold belt structures in that it obliquely crosses the Santa Ynez Mountains and the dominant east-west structural grain. The fault was difficult to map in the offshore, even with our dense seismic-reflection data coverage, because the pre-LGM section on the shelf includes...
This part of DS 781 presents data for the geologic and geomorphic map of the Offshore of Point Conception Map Area, California. The vector data file is included in "Faults_OffshorePointConception.zip," which is accessible from https://doi.org/10.5066/F7QN64XQ. In the offshore faults are probably rooted in blind thrusts and backthrusts in the hanging wall above the Pitas Point-North Channel fault system. References Cited: Dibblee, T.W., 1988a, Geologic map of the Solvang and Point Conception quadrangles, Santa Barbara County, California, edited by H.E. Ehrenspeck (1988): Dibblee Geological Foundation, Map DF-16, scale 1:24,000. Dibblee, T.W., Jr., 1950, Geology of southwestern Santa Barbara County, California, Point...
This part of DS 781 presents data for the geologic and geomorphic map of the Offshore of Point Conception Map Area, California. The vector data file is included in "Folds_OffshorePointConception.zip," which is accessible from https://doi.org/10.5066/F7QN64XQ. 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 Government Point syncline is the most prominent fold; the axis of this structure has been mapped onshore at Point Conception and extends into the offshore both to the west and east with a cumulative length of more than 22 km. Local thickening of post-LGM...
This part of DS 781 presents data for the habitat map of the Offshore of Point Conception Map Area, California. The vector data file is included in "Habitat_OffshorePointConception.zip," which is accessible from https://doi.org/10.5066/F7QN64XQ. This map shows physical marine benthic habitats in the Offshore of Point Conception map area. Marine benthic habitats represent a particular type of water quality, substrate, geomorphology, seafloor process, or any other attribute that may provide a habitat for a specific species or an assemblage of organisms. Marine benthic habitats are classified using the Coastal and Marine Ecological Classification Standard (CMECS), developed by representatives from a consortium of federal...
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...
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