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Filters Date Types (for Date Range) Types Map Service (1) OGC WFS Layer (1) OGC WMS Service (1) Contacts Katherine M Scharer Earthquake Hazards Program U.S. Geological Survey U.S. Geological Survey - ScienceBase Devin F McPhillips More... Categories Data (1) Tag Types Theme (1) USGS Scientific Topic Keyword (1) Harvest Set (1) Tag Schemes USGS Thesaurus (1) ISO 19115 Topic Category (1) View Results as: JSON ATOM CSV

Sediment properties, charcoal counts, and radiocarbon dates from the Pallett Creek paleoseismic site, San Gabriel Mountains, California (ver. 2.0, February 2024) This data release provides geochemical, sedimentological, and geochronological data from interbedded fluvial and marsh deposits and radiocarbon dates of the section spanning the last 1500 years from the Pallett Creek paleoseismic site, California. The samples were collected to support paleoenvironmental reconstruction of the site and refine several previous investigations of paleoearthquakes along the San Andreas Fault (Sieh, 1978; Sieh, 1984; Sieh et al., 1989; Biasi and Weldon, 1994; Scharer et al., 2011). Geochemical and sedimentological data include grain size, magnetic susceptibility, dry bulk density, percent total organic matter, and percent total carbonate at contiguous 1 cm spacing and carbon (total C)... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geomorphology, Seismology, Stratigraphy, USGS Science Data Catalog (SDC), carbon-14 analysis, All tags... climate change, geoscientificInformation, sedimentology, Fewer tags