AMS Radiocarbon Analysis (Other Keyword)
1-25 (188 Records)
AMS RADIOCARBON AGE DETERMINATION OF BISON BONE FROM THE FRED BURR #1 SITE (24GN1095), MONTANA (2011)
Two bison bone fragments were recovered from the Fred Burr #1 site (24GN1095), located on the bank of Fred Burr Creek east of Phillipsburg in western Montana. These bison bone fragments were submitted for AMS radiocarbon age determination.
The Jeffrey Site-Area B is situated on a relatively narrow alluvial terrace, just north of Big Bend National Park in Brewster County, Texas. Feature 2 consists of a pavement type hearth/shallow basin from which charcoal was collected for AMS radiocarbon dating.
AMS RADIOCARBON DATE FOR A BONE FRAGMENT FROM THE FOLSOM LAYER AT THE MACHAFFIE SITE, MONTANA (2012)
A bone fragment from the Folsom layer at the MacHaffie site (24JF4) was submitted for collagen recovery and an AMS radiocarbon date. After this analysis an additional bison bone fragment was submitted for subsequent collagen recovery and an AMS radiocarbon date. The MacHaffie site is situated on the western slopes of the Elkhorn Mountains in west-central Montana. Paleoindian sequences contained within floodplain alluvium include a Folsom deposit with an estimated age of 10,425 radiocarbon years...
Four sediment samples from Shannon Lake in St. Louis County, Minnesota were submitted to obtain AMS radiocarbon dates.
AMS RADIOCARBON DATES ON BONE SAMPLES FROM SHEEP ROCK SPRING (24JF292), JEFFERSON COUNTY, MONTANA (2013)
Sheep Rock Spring (24JF292) is a deeply stratified Middle to Early Precontact occupation site located northeast of Whitehall in Jefferson County, Montana. This stratified alluvial/colluvial locality is situated on the southeast-facing slope of Bull Mountain near Sheep Rock Spring in the Sheep Creek Valley. The spring is currently used as a water source for cattle. The existing radiocarbon chronology on bone indicates that the zone of fluctuating water table has introduced contaminants (Wilson...
Fragments from two different pages from the middle and end of the scroll of an ancient manuscript were submitted for AMS radiocarbon dating to establish a date by which the paper was made, and therefore, the earliest date possible for this manuscript.
AMS RADIOCARBON DATING AND ORGANIC RESIDUE (FTIR) ANALYSIS OF SAMPLES FROM THE PIGG SITE (5MT4802), COLORADO (2010)
Five charred Zea mays (corn) cob fragments and one charred Phaseolus vulgaris (bean) fragment recovered from two room blocks and a kiva at the Pigg Site (5MT4802) in Montezuma County, Colorado, were submitted for identification verification and AMS radiocarbon dating. Also submitted for organic residue analysis were several painted ceramic mug fragments that were used to line a sipapu in the same kiva from which the corn and bean samples were recovered. Organic residue analysis on select sherds...
AMS RADIOCARBON DATING AND PHYTOLITH AND STARCH GRAIN ANALYSIS OF ORGANIC RESIDUE FROM A BESANT PHASE POTSHERD, MAINARD RANCH, 24LT505, MONTANA (2011)
A Besant phase potsherd with visible residue from site 24LT505 was submitted for AMS radiocarbon dating and phytolith and starch grain analysis. Radiocarbon dating the charred residue provides information on when the vessel represented by this sherd was primarily in use. Phytolith and starch grain analysis provides information on some of the foods prepared or stored within the vessel.
Three vegetation samples recovered during 2009 and 2010 field work in Peru were submitted for radiocarbon dating. The samples included two unidentified hardwood shrub twigs and a clump of grass associated with the margin of a receding glacier.
Four charcoal samples were submitted from sites 24PH2977 and 24PH2973 near Ft. Peck Lake, Montana. These sites represent Avonlea cultural material scatters. Charcoal samples were identified and processed for AMS radiocarbon analysis.
A bison pre-molar recovered from site 24CH395 near Square Butte in Chouteau County, Montana, was submitted for AMS radiocarbon dating. A single root from the pre-molar was dated, leaving the tooth enamel available for other possible analyses.
A portion of canvas containing a portrait of St. Harold was submitted for an AMS radiocarbon date. The painting is thought to have originated in either Switzerland or Italy.
A drilled rib bone was submitted for radiocarbon dating. The bone, which has been curated for many years, had several severe cracks and had been shellacked. Treatment prior to radiocarbon dating included removing the shellac, then recovering collagen.
AMS RADIOCARBON DATING OF BONE AND CHARCOAL FROM THE MACHAFFIE SITE (24JF4), WEST-CENTRAL, MONTANA (2009)
Bone and carbon-enriched sediments from the MacHaffie Site (24JF4) in west-central Montana were submitted for AMS radiocarbon dating.
Two bone fragments recovered from 26EK9840, a site exhibiting evidence of Archaic occupation, were submitted for radiocarbon dating. These bone fragments represent Levels 20-30 cm and 40-50 cm.
A single bone fragment from Spokane Creek, Montana was submitted for AMS radiocarbon dating.
AMS RADIOCARBON DATING OF CHARCOAL AND BONE FROM THE WAHKPA CHU’GN BISON KILL SITE (24HL0101), MONTANA (2011)
Three bison bone samples and two pieces of charcoal were submitted from the Wahkpa Chu’gn bison kill site (24HL0101) in north-central Montana. One bone sample was recovered from a large fire-cracked rock feature found in Area E. Two charcoal samples and two bison bone samples were recovered from Display House #5, the westernmost display area, in Area D. The earliest occupation appears to have been the Besant Complex around 2000-1500 BP. There was a short occupation by the Avonlea Complex,...
A fabric fragment, charcoal, and wood from Nahal Amram, Israel, were submitted for identification and AMS radiocarbon dating. Nahal Amram is an area of ancient copper mining, and all three samples are associated with mines.
AMS RADIOCARBON DATING OF SAMPLES FROM SITES 21-BK-99, 21-OT-152, 21-CA-188, AND 21-HB-26, MINNESOTA (2011)
Charred organic residue from four ceramic sherds from multiple sites in Minnesota were submitted for AMS radiocarbon dating.
AMS RADIOCARBON DATING OF SHELL FROM A FIRE PIT AT SITE 0918a-1, HAGAN CREEK, BRITISH COLUMBIA, CANADA (2012)
Shell fragments were recovered from a fire pit at Site 0918a-1 and submitted for AMS radiocarbon dating. This site is a small inland shell midden Hagan Creek, British Columbia, Canada.
AMS RADIOCARBON DATING OF THE CARBON AND CLAY CORES FROM A BRONZE BRAHMANIC SCULPTURE OF VISHNU, THAILAND, AND FROM A BRONZE SITTING BUDDHA STATUE, BHUTAN (2010)
The carbon and clay cores of two sculptures were submitted for AMS radiocarbon dating. A bronze Brahmanic sculpture of Vishnu was purportedly made during the Sukhothai era in Thailand. These pieces are noted to have been produced from the 1300s until the first quarter of the 1500s. A bronze sitting Buddha from Bhutan was supposedly cast during the 1400s. Radiocarbon dating of samples from both statues was completed to verify the dates.
AMS RADIOCARBON DATING OF THUJA PLICATA (WESTERN RED CEDAR) BARK FROM THE HIGH BAR CACHE, SITE 10IH3488, IDAHO (2010)
Fragments of Thuja plicata (western red cedar) bark from the High Bar Cache, site 10IH3488, in Hells Canyon, Idaho, were submitted for AMS radiocarbon dating. This cache consists of a greenstone pestle, a wooden tool, and textiles stored under a cairn in a boulder overhang, which is believed to represent a cache of a woman’s equipment and possessions. AMS radiocarbon dates were obtained on fragments of inner cedar bark from a woven mat and from a large bundle of bark.
ANALYSIS OF ORGANIC RESIDUES AND AMS RADIOCARBON DATING FOR A PIPE STEM FROM THE HURDY GURDY BRIDGE SITE (CA-DNO-1028), DEL NORTE COUNTY, CALIFORNIA (2012)
A stone pipe stem recovered from the Hurdy Gurdy Bridge Site (CA-DNO-1028) in Del Norte County, northwestern California, was examined for pollen, phytolith, and starch evidence of use. In addition, the organic residue signature was examined using Fourier transform infrared spectroscopy (FTIR). An AMS radiocarbon date was obtained on organic compounds (humates) that had penetrated the ceramic matrix of the pipe.
During field excavations in February 2016, numerous stratigraphic sediment samples were collected. Three of these were selected for AMS radiocarbon analysis to include dates on both shell and organics in the form of humates (soil organic matter or SOM) or charcoal, if any could be recovered. Sufficient quantities of sediments were collected from each location to allow pollen and/or phytolith analysis, either as part of the first batch of samples examined or for examination at a later date. In...
BONE COLLAGEN EXTRACTION AND AMS RADIOCARBON AGE DETERMINATION OF A BONE SAMPLE FROM SOYO 1, SOYO, MONGOLIA (2016)
The Soyo 1 Site in Soyo is situated in the Darkhad Depression in Khövsgöl province, north-central Mongolia. One mammalian bone fragment from Soyo 1 (Table 1) was submitted for bone collagen extraction and AMS radiocarbon age determination to contribute to transitional chronologies between Mongolian Epi-Paleolithic (Neolithic) hunting-gathering and Bronze Age pastoralism.