Geological Impacts to Archaeological Sites Located within the Tucson Aqueduct System Reliability Investigation (TASRI) and the Pascua Yaqui Farm Development Survey Areas

At the request of the Bureau of Reclamation (Reclamation), Archaeological Consulting Services, Ltd. (ACS) inspected archaeological sites located within the Tucson Aqueduct System Reliability Investigation (TASRI) and the Pascua Yaqui Farm Development areas. The purpose of the investigation was to assess physical processes that have impacted the integrity of archaeological sites and estimate the potential for buried features and artifacts. All of the sites appear to be Hohokam, protohistoric, and historic in age. An Archaic projectile point was found within the project area, but it appears to be an isolated occurrence. Because the project area contains degraded soils, it was especially important to assess the impact of erosion to site integrity. This report provides an overview of the geomorphology and soils in the TASRI and Yaqui Farm Development areas and present evidence for historic erosion that has exposed and modified the archaeological record.
This assessment was done on sites discovered in 1992 during two separate surveys. The reports of those surveys can be found at the following links:
Yaqui survey: https://core.tdar.org/document/393899
TASRI survey: https://core.tdar.org/document/393900

应美国垦务局（Bureau of Reclamation，简称Reclamation）委托，考古咨询服务有限公司（Archaeological Consulting Services, Ltd.，简称ACS）对图森输水系统可靠性调查（Tucson Aqueduct System Reliability Investigation，简称TASRI）区域及帕斯夸·亚基农场开发区内的考古遗址开展了踏勘检查。本次调查的核心目标为评估影响考古遗址完整性的各类物理作用过程，并估算埋藏遗迹与人工制品的潜在存在可能。所有受检遗址的年代均属于霍霍坎文化（Hohokam）、原历史时期与历史时期范畴。调查区域内仅发现一件阿卡迪亚时期（Archaic）的投射尖状器，推测为孤立遗存。鉴于项目区域内土壤存在退化现象，评估侵蚀作用对遗址完整性的影响尤为关键。本报告概述了TASRI与亚基农场开发区的地貌与土壤特征，并呈现了历史侵蚀作用暴露并改造考古记录的相关实证。本次评估基于1992年两次独立考古调查中发现的遗址开展，相关调查报告可通过以下链接获取：
亚基农场调查：https://core.tdar.org/document/393899
TASRI调查：https://core.tdar.org/document/393900