Sediment (Material Keyword)
76-100 (496 Records)
Five sediment samples collected from B.F. Sisk Dam in central California, approximately 12 km west of Los Banos, were examined to recover pollen, phytoliths, and diatoms. These sediments were recovered from the downstream toe of the dam near the former junction of San Luis and Cottonwood Creeks. These samples are believed to represent the Plio-Pleistocene Tulare Formation and possibly the Corcoran Clay, one of the uppermost units within the Tulare. Analysis was conducted in an effort to verify...
EXAMINATION OF THREE POLLEN SAMPLES FROM UVDA VALLEY, ISRAEL (2003)
Three pollen samples from Uvda Valley in Israel were examined for their pollen content. These samples each represent a different site and probably time. The intent was to obtain information concerning the presence of cereal grains and any other evidence of cultivated plants possible.
EXAMINATION OF WOOD AND CHARRED BOTANIC REMAINS FROM TRAPPED ROCK DRAW, WESTERN NEW MEXICO (2011)
A single detrital wood sample and a charred botanic sample were submitted for identification. These samples were recovered from a pair of low stream terraces along Trapped Rock Draw, immediately downstream of Trapped Rock Dam in western New Mexico. Botanic components were identified, and potentially radiocarbon datable material was separated; however, no AMS radiocarbon dates were obtained from these samples.
EXPLORATORY POLLEN ANALYSIS OF CORE SEDIMENT FROM MACON COUNTY, GEORGIA (2015)
A single sample collected from a core on the Georgia Coastal Plain that is expected to date between 200,000 and 800,000 years ago was submitted for pollen analysis. Recovery of pollen was undertaken to assess pollen preservation and recovery potential. Identification of pollen from this sample examines the record to determine whether vegetation is typical of a glacial or interglacial interval, which contributes to narrowing the time period represented by this sample.
EXPLORATORY POLLEN ANALYSIS OF SEDIMENTS FROM THE FRAZIER MOUNTAIN PALEOSEISMIC SITE, CALIFORNIA (2012)
Six samples from a core collected in a closed depression along the San Andreas fault on the north flank of Frazier Mountain were selected for pollen analysis to examine the paleoenvironmental record. In addition, quantities of microscopic charcoal smaller than 250 microns were tabulated to provide preliminary information on fire history.
EXPLORATORY POLLEN AND PHYTOLITH ANALYSIS AT 41RG13, BIG LAKE PLAYA, WEST TEXAS (1990)
EXPLORATORY POLLEN AND PHYTOLITH ANALYSIS AT 41RG13, BIG LAKE PLAYA, WEST TEXAS: A bison site (41RG13) buried in the lake bed of an intermittent playa (Big Lake) in Regan County, West Texas, contained bison tone, flakes, tools, and a dart point. A radiocarbon age of 7530 + 150 BP was obtained from a bison bone sample. Pollen and phytoliths were analyzed from this site to assess the utility of further analysis of pollen and/or phytoliths to reconstruct paleoenvironmental conditions in the...
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.
Field School at Sites 12G9 and 12G10 1975-1976
The purpose of the research conducted primarily at sites 12G9 and 12G10 was to document the activities of the Battle of the Mississinewa and the related role of the Miami and Delaware villages along the Mississinewa Reservoir in Grant and Wabash counties. Upon the passing of budget item H.E.B. 1102, the principal investigator, B.K. Swartz Jr., initiated research with a field school from Ball State University in 1975. A second field school in relation to this investigation was conducted in 1976....
Harpers Ferry
Harpers Ferry National Historical Park
HOY HOUSE: A PALYNOLOGICAL STUDY (1975)
Soil samples representing several diverse areas in and around Hoy House (5MTUMR 2150) in Johnson Canyon, Colorado were analyzed for their pollen content. These samples were taken during the summer of 1974 at excavations under the field direction of Paul R. Nickens. Dr. David A. Breternitz was the project director. Hoy House is the first cliff dwelling to be sampled for pollen studies in the Mancos Canyon project area, and it was expected that the samples would provide information for...
IDENTIFICATION AND AMS RADIOCARBON DATING OF CHARCOAL FROM A FIRE HEARTH FEATURE AT THE FORT RIDGELY MOUNDS AND FORT SITE, 21NL8, MINNESOTA (2012)
Fill from a fire-cracked rock hearth feature at the Fort Ridgely Mounds and Fort Site, (21NL8) in Fort Ridgely State Park, southern Minnesota, was examined for macrofloral remains to recover charred material suitable for AMS radiocarbon dating. A single date was obtained on charcoal from this fill.
IDENTIFICATION AND AMS RADIOCARBON DATING OF CHARCOAL FROM THE SUNDOG SITE, 02-274, TEXAS (2010)
A single charcoal sample was recovered from the center of a ring style hearth in a burned rock midden at the Sundog Site, 02-231. This site is located in Brewster County, Texas, and is believed to represent a Late Prehistoric (Perdiz) occupation of the area around AD 1200-1700. The charcoal was submitted for identification and AMS radiocarbon dating.
IDENTIFICATION OF BOTANIC REMAINS IN DRILL CORE SAMPLES FROM PORTLAND, OREGON (2010)
Six samples of botanic remains recovered from drill core samples collected in 1983 were submitted for identification. These remains most likely represent plants growing on the land surface in the Portland, Oregon, area prior to being covered by Missoula flood deposits around 15,000 years ago. The botanic samples were submitted for identification before possible radiocarbon dating.
IDENTIFICATION OF CHARCOAL SAMPLES FOR POTENTIAL RADIOCARBON DATABLE MATERIAL AND PHYTOLITH ANALYSIS OF GROUNDSTONE WASH SAMPLES FROM SITES 35LK444/445/4350, 35LK449, 35LK453, AND 35LK463/464/4409 IN LAKE COUNTY, OREGON (2014)
Four sites in Lake County, Oregon yielded charcoal for AMS radiocarbon dating. Ten samples were submitted for analysis to identify the most appropriate material for AMS radiocarbon dating. In addition, four groundstone wash samples, submitted from two of the four sites, were analyzed for phytolith evidence of food processing. All four sites are associated with prehistoric occupations; however, historic artifacts recovered at two of these sites indicate an early 20th Century component.
IDENTIFICATION OF MACROFLORAL REMAINS FROM THE EWING SITE (Y7), YELLOW JACKET, COLORADO (1998)
Five botanic samples and a macrofloral sample were examined from the Ewing Site (Y7), which is part of a triangular space (the “hinterlands”) within the Yellow Jacket district of southwestern Colorado. Many of the sites in the Yellow Jacket locality were occupied during the Pueblo II (AD 1050-1150) and Pueblo III (AD 1150-1300) periods; however, the Ewing site is believed to predate the main occupation of the area and reflect occupation during the early Pueblo II or Basketmaker III periods....
JURGENS SITE PALYNOLOGICAL ANALYSIS (1972)
The samples analyzed palynologically were collected during the excavations at the Jurgens Site, Weld County, Colorado, during the summer of 1968, under the direction of Dr. Joe Ben Wheat. The four samples were prepared for analysis by a method to be discussed later. All samples yielded sufficient pollen to make a 100-grain count of each level. These samples were taken from square 5D63, at the base of stake 5D63. It was hoped that these samples would indicate the climate of the area at the time...
MACROFLORAL ANALYSIS AND AMS RADIOCARBON AGE DETERMINATION OF A FEATURE FILL SAMPLE FROM SITE 48CO1409, LOCALITY 7581-1, CONVERSE COUNTY, WYOMING (2015)
Site 48CO1409, Converse County, Wyoming, contains six stone circles/tipi rings with limited chipped-stone artifacts and a small dart point. The upland site is situated among eroded hills that provide the necessary materials for tipi ring construction along the South Fork Dry Fork Cheyenne River (dry) (John Greer, personal communication June 15, 2015). Core 4, Ring 1, demonstrated a buried charcoal/ash layer at 10–14 cmbs. A sample recovered from this cored layer was submitted for macrofloral...
MACROFLORAL ANALYSIS AND AMS RADIOCARBON AGE DETERMINATION OF A SAMPLE FROM SITE 48CO3826, CONVERSE COUNTY, WYOMING (2017)
Site 48CO3826 is a small, basin-shaped hearth or very shallow fire pit likely dating later than 1200 AD (John Greer, personal communication November 21, 2017). It is situated in an upland setting in Converse County, east-central Wyoming. One sample was submitted for macrofloral analysis and AMS radiocarbon age determination.
MACROFLORAL ANALYSIS AND AMS RADIOCARBON AGE DETERMINATION OF A SAMPLE FROM THE TRADE WIND SITE (LA117405), LEA COUNTY, NEW MEXICO (2017)
The Trade Winds Site (LA117405), an artifact scatter, lies in a dune blowout basin in Lea County, southeastern New Mexico. Fill from a thermal feature was submitted for macrofloral analysis to recover and identify charred floral remains, including charcoal, suitable for AMS radiocarbon age determination, then date the appropriate material. The sample is expected to date between AD 200 and AD 1400 reflecting Jornada Mogollon/Early Pithouse - Late Pueblo occupation (Stacy Galassini, personal...
MACROFLORAL ANALYSIS AND AMS RADIOCARBON AGE DETERMINATION OF A SEDIMENT SAMPLE FROM LOCALITY 7842-2, CONVERSE COUNTY, WYOMING (2019)
Locality 7842-2 is an eroded stain in the middle of a two-track near the town of Douglas in Converse County, Wyoming (John Greer, personal communication, 12 June 2019). One sediment sample was submitted for macrofloral analysis and AMS radiocarbon age determination.
MACROFLORAL ANALYSIS AND AMS RADIOCARBON AGE DETERMINATION OF FEATURE FILL SAMPLES FROM SITE 48SW7095, LOCALITY 7619-2, SWEETWATER COUNTY, WYOMING (2015)
Site 48SW7095 is a short-term prehistoric camp located along raised sandy deposits overlooking Laundry Draw in Sweetwater County, Wyoming. Occupational evidence is visible on the surface, although silty deposits on the lower drainage terraces contain some buried cultural materials (John Greer, personal communication June 15, 2015). Ashy fill from cores into the center of two hearths were submitted for macrofloral analysis and AMS radiocarbon age determination. Samples are expected to range from...
MACROFLORAL ANALYSIS AND AMS RADIOCARBON AGE DETERMINATION OF HEARTH FILL FROM SITE 48CO3688, LOCALITY 7608-5, CONVERSE COUNTY, WYOMING (2015)
Site 48CO3688 lies on the crest of a broad ridge in Converse County, Wyoming. A surface hearth contained fire-affected rock and one flake. No tools or diagnostic artifacts were associated with this site (John Greer, personal communication July 23, 2015). Feature fill from soil probes was submitted for macrofloral and AMS radiocarbon analysis to ascertain the period of occupation. Charcoal from this locality is expected to date between 2500 and 800 BP (John Greer, personal communication July 23,...
MACROFLORAL ANALYSIS AND AMS RADIOCARBON AGE DETERMINATION OF HEARTH FILL FROM SITE 48CO3689, LOCALITY 7608-6, CONVERSE COUNTY, WYOMING (2015)
Site 48CO3689 is situated on an escarpment rim of a broad ridge approximately three miles northeast of North Platte River, Converse County, Wyoming. A cluster of burned rocks on the surface identified an unlined hearth that lacked any diagnostic artifacts. Subsurface core testing indicated intact ash-stained sediment submitted for macrofloral analysis and subsequent AMS radiocarbon age determination. Nearby sites, also situated on this ridge crest, indicate occupation as early as the Middle...
MACROFLORAL ANALYSIS AND AMS RADIOCARBON AGE DETERMINATION OF SAMPLES FROM LOWMAN PIPELINE E19208, SITE 1CW365 (C3-004), CHOCTAW COUNTY, ALABAMA (2020)
Site 1CS365 was excavated as part of work on the Lowman Pipeline. This multicomponent site includes both a Native American artifact scatter, representing a Late Gulf Formational to Late Woodland occupation, and a twentieth-century railroad bed of the AT&N railroad. Three features were sampled for macrofloral and AMS radiocarbon analyses, the latter to establish the time periods of use.
MACROFLORAL ANALYSIS AND AMS RADIOCARBON AGE DETERMINATION OF SAMPLES FROM SITE CA-SDI-5669, SAN DIEGO COUNTY, CALIFORNIA (2016)
Site CA-SDI-5669 lies within the city of Santee in eastern San Diego County. Four sediment samples collected from Locus C were submitted for macrofloral analysis to identify plant processing activities and fuel use at the site. In addition, suitable charred botanics were selected for AMS radiocarbon age determination to ascertain the period of use.