organic residues (Other Keyword)
1-4 (4 Records)
A reconstructed pottery cooking vessel dating to the Late Preclassic period from the ancient Maya site of Cerro Maya, Belize was sampled for absorbed organic residues. Samples were taken from multiple locations to look for differences in their distribution. Three interior regions –rim, mid-body and base—were sampled along with one from an exterior basal location as a control to evaluate for possible contaminants. Samples were processed using a high pressure liquid extraction technique for...
Examination of Organic Residues and Tribochemical Wear in Low Fired Casas Grandes Pottery Vessels (2017)
Extensive ethnographic evidence of tribochemical globular pitting in brewing vessels exists throughout Africa and Mesoamerica. Current hypotheses, however, do not extend this brewing tradition into the Casas Grandes region until after Spanish Contact. Sherds of pottery vessels collected from the Casas Grandes region (AD 1200-1450) exhibit extensive pitting, which some researchers suggest is due to the fermentation of alcohol and production of hominy. To evaluate these hypotheses, we utilized...
Organic Analysis of Residues from Noded Vessels from the Lower Mississippi Valley (2016)
Analysis of organic residues in ceramic vessels obtained from archaeological excavations has the potential to identify the substances Native Americans stored in ceramic pots of various shapes, sizes and designs. In this study we analyzed residues extracted from a particular type of vessel that has unique designs covering the outer surface. It was recently proposed that these noded pots were used specifically to process Datura for religious ceremonies. Datura contains tropane alkaloids that have...
Residue Analysis of Archaeological Smoking Pipes from the Southeastern US (2016)
Chemical analyses of organic residues from smoking pipes excavated from archaeological sites in the southeastern United States provide insight into ritualistic smoking traditions of indigenous peoples. This study examined residues scraped from pipes and pipe sherds in collections at the Fernbank Museum of Natural History in Atlanta, Georgia, and the McClung Museum of Natural History and Culture in Knoxville, Tennessee. One of the primary goals was to determine whether nicotine was present in the...