Cristina Fraile
University of Valladolid
11 Papers
Cristina Fraile is an academic researcher from University of Valladolid. The author has contributed to research in topics: Olduvai Gorge & Acheulean. The author has an hindex of 8, co-authored 10 publications.
Chat about Author
Papers
Techno-economic human behavior in a context of recurrent megafaunal exploitation at 1.3 Ma. Evidence from BK4b (Upper Bed II, Olduvai Gorge, Tanzania)
Policarpo Sánchez-Yustos,Fernando Diez-Martín,Manuel Domínguez-Rodrigo,Cristina Fraile,Javier Duque,David Uribelarrea,Audax Mabulla,Enrique Baquedano +7 more
TL;DR: This paper showed that the bulk of the technological process was largely devoted to producing in-site small quartz flakes motivated by an imperative demand for durable cutting edges, whereas the operational sequence aimed at producing LCTs played a secondary role and represented by different and isolated fractions.
FLK West (Lower Bed II, Olduvai Gorge, Tanzania): a new early Acheulean site with evidence for human exploitation of fauna
José Yravedra,Fernando Diez-Martín,Charles P. Egeland,Miguel Ángel Maté-González,Miguel Ángel Maté-González,Juan Francisco Palomeque-González,Mari Carmen Arriaza,Julia Aramendi,Elena García Vargas,Verónica Estaca-Gómez,Policarpo Sánchez,Cristina Fraile,Javier Duque,Sara de Francisco Rodríguez,Diego González-Aguilera,David Uribelarrea,Aundax Mabulla,Enrique Baquedano,Manuel Domínguez-Rodrigo +18 more
TL;DR: A detailed taphonomic study of the faunal assemblage from FLK West (Olduvai Gorge, Tanzania), a site with an Acheulean component that dates to 1.7 Ma, is presented in this paper.
Production and use of percussive stone tools in the Early Stone Age: Experimental approach to the lithic record of Olduvai Gorge, Tanzania
Policarpo Sánchez Yustos,Fernando Diez-Martín,Isabel Díaz,Javier Duque,Cristina Fraile,Manuel Domínguez +5 more
TL;DR: In this paper, the authors explored the relationship between bipolar cores and spheroids in the Olduvai Gorge and concluded that the bipolar technique is the most efficient technique to produce portable and manageable cuboid-shaped slab fragments, and bipolar cuboidshaped fragments can be modified to sub-spherical shape through intensive percussive processes.
Diversity and significance of core preparation in the Developed Oldowan technology: reconstructing the flaking processes at SHK and BK (Middle‐Upper Bed II, Olduvai Gorge, Tanzania)
Policarpo Sánchez-Yustos,Fernando Diez-Martín,Manuel Domínguez-Rodrigo,Javier Duque,Cristina Fraile,Enrique Baquedano,Audax Mabulla +6 more
TL;DR: In this paper, the analysis and classification of flaking cores through detailed diacritical and technological descriptions, regardless of aprioristic morphological considerations, was carried out on two developed oldowan assemblages from SHK and BK at Olduvai Gorge (Tanzania).
SHK Extension: a new archaeological window in the SHK fluvial landscape of Middle Bed II (Olduvai Gorge, Tanzania)
Fernando Diez-Martín,Cristina Fraile,David Uribelarrea,Policarpo Sánchez-Yustos,Manuel Domínguez-Rodrigo,Javier Duque,Isabel Díaz,Sara de Francisco,José Yravedra,Audax Mabulla,Enrique Baquedano +10 more
Abstract: In this paper, we present the results of new archaeological and geological research carried out in SHK Extension, a new site excavated within the SHK fluvial complex (Bed II, Olduvai Gorge). The paper describes the stratigraphy of the site and its correlation with our excavation in SHK Main Site, showing that overbank archaeological accumulations in both areas are synchronous and form part of the same fluvial palaeo‐landscape. On the basis of the archaeo‐stratigraphical analysis performed, mainly geared towards defining high‐resolution chrono‐stratigraphical frameworks within the deposit, we report the results of a technological study of the lithic collection sorted by archaeo‐units, an assessment of the integrity of the main accumulation and an exhaustive lithic refitting programme. The archaeological sequence at SHK Extension, consisting of three archaeo‐units, preserves a high‐density patch of lithics and fossil bones (Level B2), on an overbank setting, isochronous with the SHK Main site. The high percentage of small lithic remains and bones, large number of fresh archaeological materials, and the identification of several refit sets support the integrity of the anthropogenic accumulation documented in Level B2. The main technological trait of the lithic assemblage from this level is the preservation of a qualitatively significant sample of large flakes and LCTs. The technological behaviours observed in SHKE, in the framework of the SHK complex, confirm that the complex web of inter‐assemblage variability during Bed II times operated also in very close fractions of the same palaeo‐landscape. This reinforces the idea that subtle functional parameters must be taken into account in our current assessment of the Developed Oldowan/Acheulean interface.