2026-06-08T01:07:10Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/1013952025-09-02T15:26:36Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author Mussi, Margherita author Mendez Quintas, Eduardo author Barboni, Doris author Bocherens, Hervé author Bonnefille, Raymonde author Briatico, Giuseppe author Geraards, Denis author Melis, Rita author Panera Gallego, Joaquín author Pioli, Laura author Serodio Domínguez, Andrea author Rubio Jara, Susana 2024-02-14T08:47:28Z 2024-02-14T08:47:28Z 2023 Mussi, Margherita, Eduardo Mendez-Quintas, Doris Barboni, Hervé Bocherens, Raymonde Bonnefille, Giuseppe Briatico, Denis Geraads, et al. «A Surge in Obsidian Exploitation More than 1.2 Million Years Ago at Simbiro III (Melka Kunture, Upper Awash, Ethiopia)». Nature Ecology & Evolution 7, n.o 3 (19 de enero de 2023): 337-46. https://doi.org/10.1038/s41559-022-01970-1. 2397-334X 10.1038/s41559-022-01970-1 https://hdl.handle.net/20.500.14352/101395 https://doi.org/10.1038/s41559-022-01970-1 Pleistocene archaeology records the changing behaviour and capacities of early hominins. These behavioural changes, for example, to stone tools, are commonly linked to environmental constraints. It has been argued that, in earlier times, multiple activities of everyday life were all uniformly conducted at the same spot. The separation of focused activities across different localities, which indicates a degree of planning, according to this mindset characterizes later hominins since only 500,000 years ago. Simbiro III level C, in the upper Awash valley of Ethiopia, allows us to test this assumption in its assemblage of stone tools made only with obsidian, dated to more than 1.2 million years (Myr) old. Here we first reconstruct the palaeoenvironment, showing that the landscape was seasonally flooded. Following the deposition of an accumulation of obsidian cobbles by a meandering river, hominins began to exploit these in new ways, producing large tools with sharp cutting edges. We show through statistical analysis that this was a focused activity, that very standardized handaxes were produced and that this was a stone-tool workshop. We argue that at Simbiro III, hominins were doing much more than simply reacting to environmental changes; they were taking advantage of new opportunities, and developing new techniques and new skills according to them. eng A surge in obsidian exploitation more than 1.2 million years ago at Simbiro III (Melka Kunture, Upper Awash, Ethiopia) journal article 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URL https://docta.ucm.es/bitstreams/3c400f89-15e9-4b23-b992-fe008a4a13cd/download File MD5 1520bf130aedc1f277a9e1c1566baef7 14117598 application/pdf Surge_in_obsidian_exploitation.pdf