The main objectives in this paper are to analyze different exploitation, production, and use strategies applied on chert and silicified dolomite quarry workshops, and to interpret diverse ways of transport and circulation of these lithic raw materials from procurement areas to other sites in the center of the Pampa grasslands during the Late Holocene. Quarry workshops have an important economic, social, cultural, and symbolic role for past hunter-gatherer societies and the northwest Tandilia System would have represented a place of great cultural significance because human groups could have exploited a huge diversity of rocks and minerals. The data obtained are consistent with the lithic technological analysis of the archaeological sample, which shows coherent patterns associated with immediate and local procurement strategies. Also, a petrographic characterization of the sources was carried out through macroscopic and microscopic analyses, and compared with archaeological materials. Such analyses were oriented towards mobility and land-use patterns. All the resulting data have been processed and analyzed using GIS tools for the landscape. This method allowed us to locate and characterize potential sources of lithic raw materials. The survey focused on a 10-kilometer radius from the archaeological site. In view of this, an extensive surveying strategy was designed to locate the sources of these siliceous materials. Excavations carried out at mound PU061110Q23/Q25, located at the archaeological site of Pago Lindo (Caraguatá, department of Tacuarembó), reveal a predominance of siliceous raw materials mostly procured from secondary sources. This paper presents the results of an analysis on lithic procurement and land use strategies corresponding to Late Holocene occupations in northeast Uruguay.
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