EXAMINATION OF BULK SOIL AND MICROCHARCOAL EXTRACTION OF SAMPLES FROM THE JERD CREEK PALEOSEISMIC TRENCH SITE, NAPA COUNTY, CALIFORNIA

Author(s): Kathryn Puseman

Year: 2012

Summary

A total of six bulk soil samples were collected from a paleoseismic trench at the Jerd Creek trench site on the Berryessa section of the Green Valley Fault, California. These samples were examined for the presence of charred organic material suitable for AMS radiocarbon dating. Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material was separated. In the absence of larger-sized charred remains, four of the samples were extracted to recover microscopic charcoal for dating. Radiocarbon dates from the various layers may yield information on the timing of the longest ground ruptures on the Green Valley fault and will further constrain the earthquake history of the site.

Cite this Record

EXAMINATION OF BULK SOIL AND MICROCHARCOAL EXTRACTION OF SAMPLES FROM THE JERD CREEK PALEOSEISMIC TRENCH SITE, NAPA COUNTY, CALIFORNIA. Kathryn Puseman. PRI Technical Report ,2012-009. 2012 ( tDAR id: 380141) ; doi:10.6067/XCV8K9372S

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Keywords

Material
Dating Sample • Macrobotanical • Sediment

Site Name
Jerd Creek trench site

Investigation Types
Data Recovery / Excavation

General
12-009 • AMS Radiocarbon Analysis • AMS Radiocarbon Dating • Bulk Soil Sample • Macrofloral Analysis

Geographic Keywords
Berryessa Section • California (State / Territory) • Green Valley Fault • Jerd Creek • Napa County (County)

Spatial Coverage

min long: -122.967; min lat: 38.092 ; max long: -121.819; max lat: 38.999 ;

Individual & Institutional Roles

Contact(s): PaleoResearch Institute

File Information

  Name Size Creation Date Date Uploaded Access
12-009_final.pdf 29.89kb Dec 21, 2012 4:08:04 PM Public