This dataset contains sample descriptions of bulk radiocarbon samples collected from the Guanabanas road exposure of the South Lajas fault, Puerto Rico, and can be found in Table S3 of the related manuscript.

This dataset contains sample descriptions of bulk radiocarbon samples collected from the Guanabanas road exposure of the South Lajas fault, Puerto Rico, and can be found in Table S3 of the related manuscript.

This dataset provides detailed unit descriptions of the Guanabanas road exposure of the South Lajas fault, Puerto Rico, and can be found in Table S2 and summarized in Table 1 in the related manuscript.

This dataset provides detailed unit descriptions of the Guanabanas road exposure of the South Lajas fault, Puerto Rico, and can be found in Table S2 and summarized in Table 1 in the related manuscript.

This data release documents neotectonic mapping of fault-related features on high-resolution lidar-derived topography, data documenting an exposure of the South Lajas fault, and summary information for active and potentially active Quaternary faults on the island of Puerto Rico. The data documenting the exposure of the South Lajas fault include detailed unit descriptions, radiocarbon sample descriptions, data, and results, and a structure-from-motion-derived orthophoto mosaic of the exposure. Luminescence data and ages for the exposure can be found in a related data release. These datasets are associated with the manuscript: Thompson Jobe, J. A. R. Briggs, K. S. Hughes, J. Joyce, R. Gold, S. Mahan, H. Gray, L. Strickland (in review). Neotectonic mapping of Puerto Rico.

This data release documents neotectonic mapping of fault-related features on high-resolution lidar-derived topography, data documenting an exposure of the South Lajas fault, and summary information for active and potentially active Quaternary faults on the island of Puerto Rico. The data documenting the exposure of the South Lajas fault include detailed unit descriptions, radiocarbon sample descriptions, data, and results, and a structure-from-motion-derived orthophoto mosaic of the exposure. Luminescence data and ages for the exposure can be found in a related data release. These datasets are associated with the manuscript: Thompson Jobe, J. A. R. Briggs, K. S. Hughes, J. Joyce, R. Gold, S. Mahan, H. Gray, L. Strickland (in review). Neotectonic mapping of Puerto Rico.

We present the results of 14C age analysis of samples collected during multiple projects that are part of an on-going, joint initiative of the U.S. Geological Survey Volcano Disaster Assistance Program and the El Salvador Ministerio de Ambiente y Recursos Naturales. These projects are part of a wider effort to better understand El Salvador’s many volcanoes and provide baseline data which can be applied to understanding the character of the country’s volcanism and assessing its volcanic hazards. Many of El Salvador’s late Pleistocene and Holocene eruptions and non-eruptive volcanic events lack critical information on when they occurred. Samples were taken from both terrestrial outcrops and cores of varying lengths. The data presented here begin to fill this knowledge gap by providing age constraint for many previously undated eruptions, debris avalanches, or debris flows. For each sample, we provide stratigraphic constraint and outcrop locations, but detailed tephrostratigraphy and interpretations for each project will be presented in subsequent publications using these 14C age data.

This part of the data release is a spreadsheet including radiocarbon sample information and calibrated ages of sediment cores collected in 2009 offshore of Palos Verdes, California. It is one of seven files included in this U.S. Geological Survey data release that include data from a set of sediment cores acquired from the continental slope, offshore Los Angeles and the Palos Verdes Peninsula, adjacent to the Palos Verdes Fault. Gravity cores were collected by the USGS in 2009 (cruise ID S-I2-09-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=SI209SC), and vibracores were collected with the Monterey Bay Aquarium Research Institute's remotely operated vehicle (ROV) Doc Ricketts in 2010 (cruise ID W-1-10-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=W110SC). One spreadsheet (PalosVerdesCores_Info.xlsx) contains core name, location, and length. One spreadsheet (PalosVerdesCores_MSCLdata.xlsx) contains Multi-Sensor Core Logger P-wave velocity, gamma-ray density, and magnetic susceptibility whole-core logs. One zipped folder of .bmp files (PalosVerdesCores_Photos.zip) contains continuous core photographs of the archive half of each core. One spreadsheet (PalosVerdesCores_GrainSize.xlsx) contains laser particle grain size sample information and analytical results. One spreadsheet (PalosVerdesCores_Radiocarbon.xlsx) contains radiocarbon sample information, results, and calibrated ages. One zipped folder of DICOM files (PalosVerdesCores_CT.zip) contains raw computed tomography (CT) image files. One .pdf file (PalosVerdesCores_Figures.pdf) contains combined displays of data for each core, including graphic diagram descriptive logs. This particular metadata file describes the information contained in the file PalosVerdesCores_Radiocarbon.xlsx. All cores are archived by the U.S. Geological Survey Pacific Coastal and Marine Science Center.

This part of the data release is a spreadsheet including radiocarbon sample information and calibrated ages of sediment cores collected in 2009 offshore of Palos Verdes, California. It is one of seven files included in this U.S. Geological Survey data release that include data from a set of sediment cores acquired from the continental slope, offshore Los Angeles and the Palos Verdes Peninsula, adjacent to the Palos Verdes Fault. Gravity cores were collected by the USGS in 2009 (cruise ID S-I2-09-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=SI209SC), and vibracores were collected with the Monterey Bay Aquarium Research Institute's remotely operated vehicle (ROV) Doc Ricketts in 2010 (cruise ID W-1-10-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=W110SC). One spreadsheet (PalosVerdesCores_Info.xlsx) contains core name, location, and length. One spreadsheet (PalosVerdesCores_MSCLdata.xlsx) contains Multi-Sensor Core Logger P-wave velocity, gamma-ray density, and magnetic susceptibility whole-core logs. One zipped folder of .bmp files (PalosVerdesCores_Photos.zip) contains continuous core photographs of the archive half of each core. One spreadsheet (PalosVerdesCores_GrainSize.xlsx) contains laser particle grain size sample information and analytical results. One spreadsheet (PalosVerdesCores_Radiocarbon.xlsx) contains radiocarbon sample information, results, and calibrated ages. One zipped folder of DICOM files (PalosVerdesCores_CT.zip) contains raw computed tomography (CT) image files. One .pdf file (PalosVerdesCores_Figures.pdf) contains combined displays of data for each core, including graphic diagram descriptive logs. This particular metadata file describes the information contained in the file PalosVerdesCores_Radiocarbon.xlsx. All cores are archived by the U.S. Geological Survey Pacific Coastal and Marine Science Center.

This dataset contains an orthophoto of the Guanabanas road exposure of the South Lajas fault in southwest Puerto Rico, created using structure-from-motion.