Bulk Sediment Analysis (Other Keyword)
1-10 (10 Records)
One sediment sample from the Shishaldin volcano on the Aleutian Islands (Site 18jrssh024) and four sediment samples from the Makushin volcano on the Eastern Unalaska Island (Site 18mkjrs001), Alaska were submitted for recovery of datable particulate organics and AMS radiocarbon age determination.
BULK SEDIMENT ANALYSIS AND AMS RADIOCARBON AGE DETERMINATION OF SAMPLES FROM THE TOPLIFF HILL SITE, TOOELE COUNTY, UTAH (2019)
The Topliff Fault is a north-trending fault zone in the Rush Valley of Tooele County, Utah. Geological research along the fault at the Topliff Hill Site aims to better understand prehistoric earthquakes. In association with ongoing research, samples were submitted for bulk sediment analysis and AMS radiocarbon age determination, with the goal of providing a timeline of earthquakes at the fault.
BULK SEDIMENT ANALYSIS AND CHARCOAL IDENTIFICATION OF SAMPLES FROM THE SKI LAKE SITE, TETON COUNTY, WYOMING (2019)
The Ski Lake Site is located in the southern Teton Range, Teton County, Wyoming. Nine charcoal samples and twelve bulk sediment samples excavated from two paleoseismic trenches at this site were submitted for analysis. The goal of these analyses was to isolate and identify charcoal for possible radiocarbon dating.
BULK SEDIMENT ANALYSIS OF SAMPLES FROM THE BOG LEMMING TRENCH, CLALLAM COUNTY, WASHINGTON (2019)
The Bog Lemming Trench is located on the Sadie Creek Fault, approximately 3.25 km northwest of the town of Crescent, Clallam County, Washington. Four bulk soil samples were submitted to recover charred remains suitable for AMS radiocarbon age determination.
BULK SEDIMENT ANALYSIS, MICROCHARCOAL EXTRACTION, AND AMS RADIOCARBON AGE DETERMINATION OF SAMPLES FROM WARM SPRINGS VALLEY FAULT TRENCH, WASHOE COUNTY, NEVADA (2019)
The Warm Springs Valley Fault is a strike-slip fault in the northern Walker Lane, Washoe County, Nevada. In the autumn of 2018, a team from the University of Nevada, Reno (UNR) opened a trench across the Warm Springs Valley Fault. The objectives of the UNR geologists is to better understand the timing and recurrences of earthquakes related to the fault. Three sediment samples (Samples WSV_C14#11, WSV_C14#10, and WSV_C14#9) were submitted to PaleoResearch Institute by UNR to recover charcoal for...
CHARCOAL IDENTIFICATION AND AMS RADIOCARBON DATING OF SAMPLES FROM ALONG THE YAKIMA RIVER, YAKIMA, WASHINGTON (2009)
A total of eighteen charcoal samples and four bulk soil samples from soil pits or trenches on stream terraces adjacent to the Yakima River in eastern Washington were floated to recover organic fragments suitable for radiocarbon analysis. These samples were collected for a study of Holocene terrace chronology along the Yakima River. Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material was separated. Six radiocarbon dates were obtained.
EXTRACTION OF MICROCHARCOAL AND AMS RADIOCARBON DATING OF SAMPLES FROM FORT SAGE SOUTH PALEOSEISMIC TRENCH, CALIFORNIA (2009)
Sediment samples were collected from a trench across an active normal fault in the Fort Sage Mountains in northeast California with the purpose of gaining insight into earthquake activity. These sediment samples were examined to recover organic material suitable for AMS radiocarbon dating. No macroscopic charcoal or other organic fragments were noted in these samples; therefore, they were processed to recover microscopic charcoal fragments (microcharcoal) for dating. Two of the samples yielded...
MACROFLORAL ANALYSIS OF BULK SEDIMENT SAMPLES TO IDENTIFY CHARRED REMAINS SUITABLE FOR AMS RADIOCARBON DATING FROM ANTELOPE VALLEY NEAR TOPAZ LAKE, CALIFORNIA-NEVADA BORDER (2009)
Bulk soil samples from paleoseismic trenches were examined to recover charred material suitable for AMS radiocarbon dating. These trenches were excavated across the active fault bounding the west side of Antelope Valley near Topaz Lake along the California-Nevada border. Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material was separated.
ORGANIC RECOVERY AND AMS DATES FOR THE WASHINGTON FAULT, PHASE III CORRIDOR PROJECT, SOUTHERN UTAH (2009)
Eleven sediment samples from four trenches (T-1, T-2, T-4, and WFT) across the Washington Fault in Southern Utah were examined to recover particulate organics that might include microscopic charcoal and/or pollen for radiocarbon dating. Upon recovery of this material, AMS radiocarbon dating was performed.
POLLEN ANALYSIS AND EXAMINATION OF BULK SEDIMENT SAMPLES FROM WASHINGTON COUNTY, OREGON (2019)
Samples from the Scoggins/Gates Fault Study in Washington County, Oregon were submitted to PaleoResearch Institute for analysis and recovery of appropriate charred materials for radiocarbon age determination. Twenty bulk and fifteen detrital charcoal samples were submitted for identification. In addition, two sediment samples from sag pond deposits were submitted for pollen analysis. Due to budgetary constraints, none of the charcoal was processed for radiocarbon dating at PaleoResearch...