{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "PCMSC Science Data Coordinator", "hasEmail": "mailto:pcmsc_data@usgs.gov"}, "description": "Multichannel seismic-reflection (MCS) data were collected in the California Continental\nBorderland as part of southern California Earthquake Hazards Task. Five data acquisition\ncruises conducted over a six-year span collected MCS data from offshore Santa Barbara,\nCalifornia south to the Exclusive Economic Zone boundary with Mexico. The primary mission\nwas to map late Quaternary deformation as well as identify and characterize fault zones that\nhave potential to impact high population areas of southern California. To meet its objectives,\nthe project work focused on the distribution, character, and relative intensity of active\n(i.e., Holocene) deformation along the continental shelf and basins adjacent to the most highly\npopulated areas. In addition, the project examined the Pliocene-Pleistocene record of how\ndeformation shifted in space and time to help identify actively deforming structures that\nmay constitute current significant seismic hazards.\nThe MCS data accessible through this report cover the first four years of survey activity and\ninclude data from offshore Malibu coastal area west of Santa Monica, California to the southern\nsurvey limit offshore San Diego. The MCS data, which were collected with a 250-m-long, 24-channel\nstreamer used a small gas-injector airgun source. This system provided optimum resolution of\nthe upper 1 to 2 km of sediment for mapping active fault systems. The report includes trackline\nmaps showing the location of the data, as well as both digital data files (SEG-Y) and images\nof all of the profiles.\nThese data are also available via GeoMapApp (http://www.geomapapp.org/) and Virtual Ocean ( http://www.virtualocean.org/) earth science exploration and visualization applications.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://pubs.usgs.gov/of/2005/1084/", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.3c5c8b00-7131-4743-ac7a-f1bf7856f5a8.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_3c5c8b00-7131-4743-ac7a-f1bf7856f5a8", "keyword": ["Continental Borderland", "Dana Point", "Holocene", "Instrument Keywords > AIRGUN ARRAYS", "Instrument Keywords > GEOPHONES", "Instrument Keywords > HYDROPHONES", "Instrument Keywords > SEISMIC REFLECTION PROFILERS", "Los Angeles", "Pacific Ocean", "Parameters Keywords > OCEANS > MARINE SEDIMENTS > STRATIGRAPHIC SEQUENCE", "Parameters Keywords > SOLID EARTH > ROCKS/MINERALS > SEDIMENTS", "Parameters Keywords > SOLID EARTH > SEISMOLOGY > SEISMIC PROFILE", "Platform Keywords > SHIPS", "Point Dume", "Quaternary", "San Diego", "Santa Monica Bay", "Southern California", "State of California", "USA", "USGS:3c5c8b00-7131-4743-ac7a-f1bf7856f5a8", "active fault", "airgun", "deformation", "digital data", "distributions", "earthquake hazards", "fault zone", "hazards", "marine geology", "marine geophysics", "multichannel", "profiles", "sediment deformation", "seismic data", "seismic reflection", "seismic reflection methods", "seismic reflection profiling", "sub-bottom profiling", "substrate", "tsunamis"], "modified": "2020-10-19T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-119.00000, +32.50000, -117.00000, +34.16667", "theme": ["geospatial"], "title": "Multichannel seismic-reflection data acquired off the coast of southern California - Part A 1997, 1998, 1999, and 2000"}