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64 <br /> 41 Are fluctuations in prehistoric use of the Study Area <br /> keyed to identifiable paleoenvironmental events, such as <br /> glacial stages or changes in the forest/grassland boundary? <br /> Answers to such questions provide understanding of the issue of <br /> time/chronology at Dowe Flats. <br /> 8nnlicable RP3 Contexts* <br /> Applicable RP3 contexts for the chronology of settlement within <br /> the Study Area address the Late Archaic and Ceramic Stages in <br /> Northeast Colorado as defined by Eighmy (1984) . Test excavations <br /> at sites SBL876 and 5BL2431 indicate that sites within the Study <br /> Area may address directly Eighmy's research problems 5 and 9 for <br /> the Archaic period. These problems are "possible influences from <br /> outside the Colorado Plains area, " and "Formation processes of <br /> Archaic sites, the rate of site destruction, the nature of site <br /> transformation, " respectively (1984: 64) . In addition, <br /> chronological research within the Dowe Flats area may address <br /> Eighmy's Research Deeds 1 and S. These include, "Chronologic <br /> dates, " and "environmental reconstructions to answer questions <br /> about the relationship between the Archaic, Paleo, and Ceramic <br /> stages. . . , " respectively (1984: 65) . With regard to the Ceramic <br /> period, investigation of the chronological domains outlined above <br /> may address Eighmy's research problems 4 and 10. These problems <br /> include the "relationship between the Ceramic stage and Archaic <br /> I <br /> stage, " and "formation processes of ceramic sites, the rate of <br /> site destruction and nature of site transformation (1984 :102) ." <br /> 4 . 1.3 Settlement <br /> Investigation of site distributions at and around Lowe Flats <br /> addresses the spatial component of archaeological interpretation. <br /> Site locations display non-random patterning in relation to <br /> environmental variables such as land form, vegetation zones, <br /> distance to water, and others. Understanding the nature of these <br /> patterns reveals certain aspects of prehistoric cultures' <br />