Opal Phase (Culture Keyword)
1-10 (10 Records)
Data recovery excavations at archaeological site 48SW5815 were completed by Western Archaeological Services in the winter of 2012- 2013. 48SW5815 yielded an assemblage of remains suggesting the site area was primarily a locus of repeated low intensity, short-term occupations by hunter-gatherer groups practicing a highly organized subsistence strategy using task specific activity areas which employed greater mobility within a broad spectrum collecting/ foraging system. The excavation of the three...
POLLEN ANALYSIS AND CHARCOAL IDENTIFICATION OF SAMPLES FROM SITE 48CR10499, CARBON COUNTY, WYOMING (2017)
Site 48CR10499, located in south-central Wyoming in the eastern portion of the Washakie Basin, is a hunter-gatherer open camp exhibiting evidence of two occupations, including one Early Archaic housepit. Component 2 yielded ten radiocarbon dates ranging from 5720 to 5180 BP, indicating an Opal Phase occupation. Component 1 comprises two distinct open camps dating to 1820 and 1530 BP. Two sediment samples collected from each of the two cultural components were examined for pollen to provide...
POLLEN ANALYSIS AT THE ECHO SPRING HOUSEPIT SITE (48CR6979), WYOMING (2006)
The Echo Spring Housepit site (48CR6979) represents an Opal phase Archaic occupation southeast of Wamsutter, Wyoming in the Washakie Basin, which lies in the southern portion of the Great Divide Basin. Two housepits and external features are located in a sand dune on the west facing slope of a 'low ridge between two draws. The two housepits are located immediately next to one another and each exhibits evidence of multiple occupations. Radiocarbon ages range from 4480 to 5670 BP and...
POLLEN ANALYSIS FOR 48SW13552, THE CRESCENT SITE, WYOMING (2006)
The Crescent Site, 48SW13552, is a camp site located in Sweetwater County, Wyoming. Thirty-seven features were recorded during the excavation of two block sets at the site. A backhoe trench was also placed on a north-south trajectory through the middle of the site. Radiocarbon dating of features indicate three distinct phases associated with the cultural component of the site, which were subsequently identified as the Opal Phase, the Pine Springs Phase, and the Uinta Phase. Thirteen...
POLLEN ANALYSIS FOR ONE SAMPLE FROM THE GOBBLERS KNOW 327 SITE (48SU6933), SUBLETTE COUNTY, WYOMING (2010)
One soil sample from Site 48SU6933, the Gobblers Know 327 site, was submitted for examination of pollen remains. This prehistoric open camp is located in Sublette County, southwestern Wyoming. Radiocarbon dates from two features at this site returned dates of 3660 ± 40 YBP and 5380 ± 40 YBP, indicating occupation of this site during the Pine Spring phase of the Late Archaic period, and the Opal phase of the Early Archaic period (Joni Stainbrook, personal communication, December 6, 2010). Pollen...
POLLEN ANALYSIS FOR THE FILLMORE SEAVERSON SITE (48CR11356), SWEETWATER COUNTY, WYOMING (2022)
Site 48CR11356 is located west of the bank of Fillmore Creek and approximately 350 feet southwest of the earthen dike of Seaverson Reservoir. AMS Radiocarbon analysis on charcoal recovered from eight of the thermal features indicates multiple occupations spanning the Opal phase of the Archaic period (5690 ±30 years B.P. 4070 ±30 years B.P.), with more intensive use from approximately 5300–5200 years B.P. Soil samples representing Cultural Stratum II and the base of a feature beneath a piece...
POLLEN ANALYSIS OF SAMPLES FROM SITE 48SU7579, SUBLETTE COUNTY, WYOMING (2018)
Prehistoric camp site 48SU7579, situated on a northwesterly extending ridge finger, lies at an elevation of 7030 ft overlooking the Alkali Creek drainage valley. Two areas, Blocks A and B, date to the Opal Phase of the Early Archaic. Feature fill was collected from four features for pollen analysis to assess their use and provide paleoenvironmental information. A modern control sample assists with interpretation of prehistoric use.
POLLEN ANALYSIS OF SAMPLES FROM THE BLUE RIM SITE (48SU6439), WYOMING (2009)
The Blue Rim Site is a prehistoric open camp located on a finger ridge extending from the south flank of Blue Rim towards the highway. This site includes a disperse scatter of lithic debitage, a concentration of FCR, and three areas of cultural staining (Feature 2). Radiocarbon dates obtained from fire hearths indicate occupation within the Opal phase of the Archaic period (6500-4300 BP). Pollen samples were collected and examined from ten features representing four periods of occupation at this...
POLLEN AND STARCH ANALYSIS OF SEDIMENT SAMPLES FROM SITE 48SU3993, SUBLETTE COUNTY, WYOMING (2017)
Site 48SU3993 exhibits three cultural components representing the Great Divide phase of the Early Archaic, the Opal phase of the Early Archaic, and the Pine Spring phase of the Late Archaic. Situated in the northern portion of the Wyoming Basin, this hunter-gatherer open camp represents multiple short-term residential camps. Pollen analysis of the modern surface, three stratigraphic samples, and nine thermal feature samples, as well as starch analysis of the same nine thermal feature samples,...
STARCH AND ORGANIC RESIDUE (FTIR) ANALYSIS OF SAMPLES FROM SITE 48SW16996, SWEETWATER COUNTY, WYOMING (2010)
Sediment samples from the fill of a basin house and associated features at site 48SW16996 in Sweetwater County, Wyoming, were submitted for starch analysis. Fire-cracked rock from fill of a hearth within the basin house also was tested for organic residues using Fourier Transform Infrared Spectroscopy (FTIR). Radiocarbon dates suggest that the house dates to the Opal phase of the Early Archaic. Starch and organic residue (FTIR) analyses will be used to provide information concerning plant...