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MAJOR OXIDE, MINOR OXIDE, AND TRACE ELEMENT ANALYSIS OF ANDESITE AND DACITE ARTIFACTS FROM 5LA1211 AND 5LA1416, SOUTHERN COLORADO
Abstract
The analysis here of volcanic rock artifacts indicates that all the samples were produced from intermediate andesite and dacite volcanic rocks. While the rocks are certainly intermediate volcanic rocks, the dacite artifacts do not match any known archaeological dacite source from the Taos Plateau Volcanic Field such as San Antonio Mountain or Newman Dome approximately 135 km southwest of Trinidad, Colorado
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