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Exploring Occupation Patterns in the Lower Pecos and Central Texas Regions over the Last 9,000 Years using Radiocarbon Dates

Author(s): Raymond Mauldin ; Emily McCuistion ; Leonard Kemp ; Cynthia Munoz

Year: 2017

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Summary

We use summed probability distributions derived from radiocarbon sequences as a gross measure of prehistoric occupation patterns for two regions in Texas. The first sequence consists of over 325 dates from the Lower Pecos Region, located along the Rio Grande and Pecos Rivers. The region has over 40 years of radiocarbon dating, with dates in this database coming from multiple excavation projects that were frequently focused on shelters and cave. The second dataset comes from the Upper San Antonio River area in Central Texas and reflects projects conducted since the late 1970s. This set has roughly 320 dates, with all dates coming from open sites. Focusing on the last 9,000 years, we compare the two regional sequences. Using the same calibration procedure, we isolate a series of differences in these distributions that do not seem to be adequately explained by sample bias (i.e., AMS vs conventional samples) or taphonomic processes related to different recovery contexts. While research is ongoing, these sequences may track regional hunter-gatherer occupation patterns, with differences providing opportunities to explore the impacts of other variables (e.g., climate/ ecological shifts, disease) on each region.


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Exploring Occupation Patterns in the Lower Pecos and Central Texas Regions over the Last 9,000 Years using Radiocarbon Dates. Raymond Mauldin, Emily McCuistion, Leonard Kemp, Cynthia Munoz. Presented at The 81st Annual Meeting of the Society for American Archaeology, Vancouver, British Columbia. 2017 ( tDAR id: 430407)


Keywords

Geographic Keywords
North America - Plains


Spatial Coverage

min long: -113.95; min lat: 30.751 ; max long: -97.163; max lat: 48.865 ;

Record Identifiers

Abstract Id(s): 15547

Arizona State University The Andrew W. Mellon Foundation National Science Foundation National Endowment for the Humanities Society for American Archaeology Archaeological Institute of America