AMS Radiocarbon Analysis (Other Keyword)
101-125 (283 Records)
A total of 82 samples for the western Colorado Holocene terrace chronology were floated or water-screened to recover organic fragments suitable for radiocarbon analysis. These samples were recovered from soil pits excavated in late Holocene terraces adjacent to creeks and rivers in the upper Gunnison River basin. Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material was separated. Accelerator Mass Spectrometry (AMS) radiocarbon dates were...
EXAMINATION OF BULK SOIL/DETRITAL CHARCOAL AND AMS RADIOCARBON ANALYSIS OF MATERIAL FROM THE PRICE RIVER BASIN, NORTHEAST UTAH (2006)
A total of 22 samples were examined to recover charcoal or other charred organic fragments suitable for radiocarbon analysis. These samples were recover:d from stream deposits along drainages in the Price River Basin of northeast Utah. Botanic components and detrital charcoal were identified and potentially datable radiocarbon matenal was separated. Charcoal from seven samples were AMS radiocarbon dated.
EXAMINATION OF BULK SOIL/DETRITAL CHARCOAL FROM LAHONTAN DAM, NEVADA (2015)
Six bulk soil samples and nine detrital charcoal samples from site locations CR4, CR5, CR6, and CR7 along the Carson River, in the lower Carson River Basin, Nevada were analyzed to recover organic fragments suitable for radiocarbon age determination. These samples were recovered from stream deposits near the Lahontan Dam and Reservoir (Jeanne Godaire, personal communication September 1, 2015). Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material...
EXAMINATION OF BULK SOIL/DETRITAL CHARCOAL SAMPLES FOR RADIOCARBON DATABLE MATERIAL AND AMS RADIOCARBON ANALYSIS OF MATERIAL FROM ALONG THE BOISE RIVER AND THE SNAKE RIVER, IDAHO (2006)
A total of 13 samples from three different sites along the Boise River and the Snake River in southern Idaho were examined to recover organic fragments suitable for radiocarbon analysis. These samples were recovered from late Holocene terraces adjacent to the Boise River northeast of Boise, and along the Snake River near Twin Falls and American Falls. Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material was separated. Two AMS radiocarbon...
EXAMINATION OF DETRITAL CHARCOAL AND AMS RADIOCARBON AGE DETERMINATION OF MATERIAL FROM CACHE CREEK, CALIFORNIA (2011)
Two detrital charcoal samples from a test pit at Cache Creek in Yolo County, California, were submitted for identification and radiocarbon age determination. These samples were recovered from Test Pit LM4.2L on an alluvial fan. Two AMS radiocarbon dates were obtained.
EXAMINATION OF DETRITAL CHARCOAL AND AMS RADIOCARBON ANALYSIS OF MATERIAL FROM ALONG BULL LAKE CREEK, WYOMING (2011)
Ten samples were examined for the presence of organic material suitable for radiocarbon analysis. These samples were recovered from two Holocene terraces along Bull Lake Creek downstream of Bull Lake Dam, in west-central Wyoming. Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material was separated. A total of 3 radiocarbon dates were obtained from charcoal fragments.
EXAMINATION OF DETRITAL CHARCOAL AND AMS RADIOCARBON ANALYSIS OF MATERIAL FROM ALONG EAST CLEAR CREEK, ARIZONA (2006)
A total of four samples from along East Clear Creek in east-central Arizona were floated to recover organic fragments suitable for radiocarbon analysis. Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material was separated. Charcoal from one of the samples was processed for AMS radiocarbon analysis.
EXAMINATION OF DETRITAL CHARCOAL AND AMS RADIOCARBON ANALYSIS OF MATERIAL FROM ALONG GRASS VALLEY CREEK IN THE TRINITY RIVER BASIN FOR THE NORTHERN COAST RANGES OF CALIFORNIA HOLOCENE TERRACE CHRONOLOGY (2007)
Four charcoal samples from the Trinity River Basin of northern California were submitted for identification. These samples were examined as part of the northern Coast Ranges of California Holocene terrace chronology. The samples were recovered from a soil pit on a high terrace above Grass Valley Creek. Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material was separated. Charcoal fragments from two of the samples were processed for AMS...
EXAMINATION OF DETRITAL CHARCOAL AND AMS RADIOCARBON ANALYSIS OF MATERIAL FROM ALONG RED WILLOW CREEK, NEBRASKA (2010)
A total of 29 samples were examined for the presence of organic material suitable for radiocarbon analysis. These samples were recovered from four natural bank exposures along Red Willow Creek downstream of Red Willow Dam in southwest Nebraska. Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material was separated. A total of 13 radiocarbon dates were obtained from charcoal and wood fragments to help establish the chronology of Holocene alluvium and...
EXAMINATION OF DETRITAL CHARCOAL AND AMS RADIOCARBON ANALYSIS OF MATERIAL FROM PASTURE CANYON, ARIZONA (2010)
Five samples from Pasture Canyon, Arizona, were examined to recover charcoal or other organic fragments suitable for radiocarbon analysis. These samples were recovered from two soil pits excavated in the stream bank and on the hillslope at the base of an older stabilized dune. Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material was separated. A total of three charcoal samples were selected for AMS radiocarbon dating.
EXAMINATION OF DETRITAL CHARCOAL AND AMS RADIOCARBON ANALYSIS OF SAMPLES FROM ALONG LITTLE STONY CREEK, EAST PARK DAM, CALIFORNIA (2010)
A total of 27 detrital charcoal samples from along Little Stony Creek downstream of East Park Dam, California, were floated to recover organic fragments suitable for radiocarbon analysis. These samples were recovered from Holocene alluvium in two bank exposures and a soil pit. Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material was separated. A total of seven radiocarbon dates were obtained on charcoal from these samples.
EXAMINATION OF DETRITAL CHARCOAL AND AMS RADIOCARBON DATE DETERMINATION OF SAMPLES FROM ALONG LITTLE STONY CREEK, EAST PARK DAM, CALIFORNIA (2011)
A total of 33 detrital charcoal samples from along Little Stony Creek downstream of East Park Dam, California, were floated to recover organic fragments suitable for radiocarbon dating. These samples were recovered from Holocene alluvium in three bank exposures and a soil pit. The botanic components and detrital charcoal were identified, and the potentially radiocarbon datable material was separated. A total of seven radiocarbon dates were obtained on charcoal from these samples. Of the 33...
EXAMINATION OF NESTED VESSEL CONTENTS, 42SA14237, SAN JUAN COUNTY, UTAH (2016)
A complete grayware jar with banded neck was recovered from the sidewall of a looter’s pit at 42SA14237. The jar and its undisturbed contents were mailed to PaleoResearch Institute, Inc. for study. While carefully pouring out the sand from the jar, we noted another small vessel inside the grayware banded neck vessel (Figure 1:A). We continued to pour out the sand while holding that tiny vessel in place, then retrieved it using a pair of tweezers. Beneath the tiny vessel was a mass of charred...
EXAMINATION OF SOIL/CHARCOAL SAMPLES FOR RADIOCARBON DATABLE MATERIAL AND AMS RADIOCARBON ANALYSIS OF SAMPLES FROM ALONG THE SOUTH FORK COWICHE CREEK, WASHINGTON (2006)
A total of six samples from site CC1 were floated to recover organic fragments suitable for radiocarbon analysis. These samples were recovered from the South Fork Cowiche Creek near Yakima in eastern Washington. Botanic components and detrital charcoal were identified, and potentially radiocarbon datable material was separated. Charcoal from one of the samples was submitted for AMS radiocarbon analysis.
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...
EXTRACTION OF SEDIMENT SAMPLES FOR RADIOCARBON DATABLE MATERIAL AND PARTICULATE ORGANIC MATERIAL FROM THE CHINO VALLEY ROAD CUT, ARIZONA (2010)
Four samples from an exposed fault graben in a road cut in Chino Valley, Arizona, were floated to recover charred material suitable for AMS radiocarbon dating. None of the samples yielded sufficient macrocharcoal for dating; therefore, the samples were processed in an attempt to recover microscopic charcoal/particulate soil organics for dating. Two of these samples yielded particulate soil organics that were submitted for dating.
IDENTIFICATION AND AMS DATING OF WOOD FROM ENESE-ELKERÜLŐ, HUNGARY (2010)
Two samples of wood recovered from wells at Enese-Elkerülő, Hungary, were submitted for identification. In addition, portions of both wood fragments were processed for AMS radiocarbon dating.
IDENTIFICATION AND AMS RADIOCARBON AGE DETERMINATION OF CHARCOAL FROM SITE DcRt-8, VICTORIA, BRITISH COLUMBIA, CANADA (2012)
Charcoal from site DcRt-8 in Victoria, British Columbia, Canada, was submitted for identification and AMS radiocarbon age determination. This site is affiliated with the Strait of Georgia culture complex (200-1600 years BP). The charcoal was found associated with sand and decaying wood.
IDENTIFICATION AND AMS RADIOCARBON ANALYSIS OF CHARCOAL FROM THE AKERS FERRY SITE, 23SH23, MISSOURI (2007)
A single charcoal sample was collected from a float sample taken out of a large charcoal stain at the Akers Ferry site, 23SH23, Missouri. This feature is believed to represent a Merchant Mississippian pit house. The charcoal sample was submitted for identification and AMS radiocarbon analysis.
IDENTIFICATION AND AMS RADIOCARBON ANALYSIS OF CHARCOAL FROM TOHDILDONIH WASH ON THE NAVAJO RESERVATION, NORTHWEST NEW MEXICO (2006)
A single charcoal sample was recovered from a bank exposure in a late Holocene terrace adjacent to Tohdildonih Wash on the Navajo Reservation in northwest New Mexico. The charcoal was identified, then submitted for AMS radiocarbon analysis.
IDENTIFICATION AND AMS RADIOCARBON DATING OF CHARCOAL AND BOTANIC REMAINS FROM CAYLÁN, PV31-30, NORTHERN PERU (2012)
Two groups of charcoal/botanic samples from the Early Horizon site of Caylán (PV31-30), on the north-central coast of Peru, were submitted for identification and AMS radiocarbon dating. Previous radiocarbon dates obtained from this site yielded two-sigma calibrated ages ranging between 800 BC and AD 20, reflecting occupation during the Early Horizon period. The first submission consisted of ten samples. Radiocarbon dates in Submission 1 were obtained from two charred maize cob fragments, two...
IDENTIFICATION AND AMS RADIOCARBON DATING OF CHARCOAL AND BOTANIC REMAINS FROM THE TRANQUIL ROCKSHELTER (41BS1513), BREWSTER COUNTY, TEXAS (2009)
Six charcoal and botanic samples were submitted for identification and AMS radiocarbon dating. These sample were recovered from features in the Tranquil Rockshelter (site 41BS1513) in Brewster County, Texas. Samples were recovered from the fill of three pits, a feature remnant, and a lenticular deposit of ash that might represent a structural floor deposit.
IDENTIFICATION AND AMS RADIOCARBON DATING OF CHARCOAL AND POLLEN, STARCH, PHYTOLITH, AND MACROFLORAL ANALYSES AT THE GENEVIEVE LYKES DUNCAN SITE, 41BS2615, TEXAS (2011)
Charcoal samples from the Genevieve Lykes Duncan Site, 41BS2615, were submitted for identification and AMS radiocarbon dating. This site is a buried, open campsite located in Brewster County, Texas, and includes three locales. This area experienced multiple occupations including Paleoindian, Early Archaic, and Middle Archaic. Charcoal was recovered from features exposed in the vertical cut bank of an unnamed arroyo running generally northeast to southwest at this site. Identification of charcoal...
IDENTIFICATION AND AMS RADIOCARBON DATING OF CHARCOAL FOR THE BROADWAY SITE (02-278), TEXAS (2010)
Charcoal from a buried hearth exposed in an arroyo wall at the Broadway Site, 02-278, was submitted for identification and AMS radiocarbon dating. This site is located in Brewster County, Texas. The charcoal was recovered from within the exposed feature rocks.
IDENTIFICATION AND AMS RADIOCARBON DATING OF CHARCOAL FROM A CORE IN MOUND C AT THE TONCREY SITE (16PL07), LOUISIANA (2012)
A single charcoal sample from a core in the center of Mound C at the Toncrey site (16PL07) in southern Louisiana was submitted for identification and AMS radiocarbon dating. This site is associated with Late Woodland Coles Creek (AD 700-1200) and Mississippian Plaquemine (AD 1200-1750) cultures. Charcoal was removed from near the bottom of the 57 cm long core at a depth of 51-52 cm.