Radiocarbon date reports have been scanned in multi-page PDF files.
History / Biographical
The Crepeele locale is located within the larger Lauder Sandhills area, located in southwestern Manitoba. The area is a complex region of high biodiversity made up of stabilized sand dunes and wetlands that encourage the development of mixed forest and grass prairie. This area provided a variety of subsistence resources for pre-European hunter-gatherers. At the present time the grass prairie is now farm land but the areas of vegetated sand dunes have not been cultivated and have revealed numerous pre-contact archaeological sites.
Archaeological surveying was conducted in 2003. The results of the 2003 Casselman survey showed over 300 test uints contained cultural material and indicated several areas for further examination including the Crepeele site DiMe-29, Sarah site DiMe-28 and Graham sites DiMe-30.
From 2003 to 2008 field work took place at the locale with 75 - 1m x1m units excavated. The Crepeele locale is a complex region of high biodiversity made up of stabilized sand dunes and wetlands that encourage the development of mixed forest and grass prairie. This area provided a variety of subsistence resources for pre-European hunter-gatherers. At the present time the grass prairie is now farm land but the areas of vegetated sand dunes have not been cultivated and have revealed numerous pre-contact archaeological sites.
To help establish the cultural sequence at the locale Radiocarbon dates were obtained from the three sites in the Crepeele locale.
Radiocarbon dating
The technique of radiocarbon dating was developed by Willard Libby and his colleagues at the University of Chicago in 1949.
Radiocarbon dating is used to estimate the age of organic remains from archaeological sites. Organic matter has a radioactive form of carbon (C14) that begins to decay upon death. C14 decays at a steady, known rate of a half life of 5,730 years. The technique is useful for material up to 50,000 years. Fluctuations of C14 in the atmosphere can affect results so dates are calibrated against dendrochronology. Radiocarbon dates are calibrated to calendar years.
Dates are reported in radiocarbon years or Before Present. Before Present refers to dates before 1950. The introduction of massive amounts of C14, due to atomic bomb and surface testing of atomic weapons, has widely increased the standard deviation on all dates after A.D. 1700 causing these dates to be unreliable.
Accelerated mass spectrometry can more accurately measure C14 with smaller samples and can date materials to 80,000 years.
Scope and Content
Sub sub series contains radiocarbon dates from: Crepeele, Sarah and Graham sites.
The Duthie site is the first site identified in the Makotchi-Ded Dontipi locale. It was reported to Dr. Bev Nicholson by Doug Jackson, a local collector who had observed archaeological materials that had been exposed during the construction of Maple Hill Road northwest of Lauder. The site is named after the landowner, Randy Duthie.
The initial inspection of the exposed materials indicated that the eastern half of the site had been severely impacted by raising a road grade using an elevating grader. However, an undetermined amount of the site remained to the west, flanked by a low sand dune. Testing and preliminary excavations were conducted in 1992-93. In 1994 a field school added to the excavated sample. The undisturbed portion of the site, west of Maple Hill Road was situated at the base of a low sand dune and had an aspen and willow forest cover. The water table was approximately one meter below surface at the time of excavation. A rising water table has since prevented further excavations.
Two dates on bone collagen were obtained during excavations. These were 880+/-80 B.P. (Beta 62705) and 970+/-40 B.P. cal. 1030 A.D. (TO 13366). These dates are consistent with an Initial Middle Missouri cultural assignment. The site occupation is identified by the distinctive ceramics found there. Ceramics at the Duthie Site are tool impressed with incising and lip modeling with fabric impressions on most vessels. Jill Taylor analysed the ceramics from the site for a Specialist thesis, Brandon University (1994) and a Masters of Arts degree from the University of Saskatchewan. (Taylor 1995).
Analysis of residue from Duthie site pottery by Matthew Boyd recovered corn (Zea mays) phytoliths and bean (Phaseolus sp.) starch grains indicating consumption of these domesticates at the Duthie site. (Boyd 2006)
The occupation of this site indicates a migration of people from the south who were well acquainted with horticultural farming. These people had previously migrated to South Dakota following river valleys into the central plains from the eastern woodlands during late Hopewell times. It appears that they later migrated well to the north into southern Manitoba but there is no evidence that they remained there for more than a single year.
Boyd, M., C. Surette and B.A. Nicholson. 2006 Archaeobotanical Evidence of Prehistoric Maize (Zea mays) Consumption at the Northern Edge of the Great Plains. Journal of Archaeological Science 33: 1129-1140.
Taylor, J. 1994 An analysis of the ceramics recovered during 1992 and 1993 at the Precontact Duthie Site (DiMe-16). Specialist thesis, Brandon University.
Scope and Content
The Series has been divided into seven sub-series, including (1) Duthie site (2) Jackson site (3) Twin Fawns site (4) Vera site (5) Schuddemat site (6) Bradshaw site (7) Hollow B site.
