Discriminating Quartzite Sources Petrographically in the Upper Gunnison Basin, Colorado: Implications for Paleoamerican Lithic-Procurement Studies

Autor:	Cody L. Dalpra, Bonnie L. Pitblado
Rok vydání:	2016
Předmět:	Petrography 010506 paleontology Provenance 060102 archaeology Paleontology 0601 history and archaeology 06 humanities and the arts Structural basin 01 natural sciences Archaeology Ecology Evolution Behavior and Systematics Geology 0105 earth and related environmental sciences
Zdroj:	PaleoAmerica. 2:22-31
ISSN:	2055-5571 2055-5563
DOI:	10.1080/20555563.2015.1137684
Popis:	Archaeologists lack a protocol for systematically attributing quartzite artifacts to particular geologic sources of the material. This paper, in an effort to begin to remedy that situation, reports the preliminary results of a petrographic study of quartzite samples from the Upper Gunnison Basin (UGB), Colorado. In that region, the overwhelming predominance of quartzite (often > 90 per cent) at most archaeological sites has hampered efforts to ascertain with any certainty the mobility strategies of Paleoamerican (and later) residents. In this study, qualitative and quantitative characterization of texture and grain composition of 50 UGB quartzite specimens led to the identification of six statistically distinct groups of samples. The groups are not arbitrary divisions of the data set; rather, they are meaningful from geologic, geospatial, chronological, and human-behavioral perspectives.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::530ebddc050af8de13b621f6e365f4b8 https://doi.org/10.1080/20555563.2015.1137684 Zobrazit plný text záznamu