7 results on '"Berna, Francesco"'
Search Results
2. Site formation processes at Manot Cave, Israel: Interplay between strata accumulation in the occupation area and the talus.
- Author
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Berna F, Boaretto E, Wiebe MC, Goder-Goldberger M, Abulafia T, Lavi R, Barzilai O, Marder O, and Weiner S
- Subjects
- Animals, Archaeology, Caves, Fossils, Humans, Israel, Occupations, Hominidae, Talus
- Abstract
Manot Cave contains important human fossils and archaeological assemblages related to the origin and dispersal of anatomically modern humans and the Upper Paleolithic period. This record is divided between an elevated in situ occupation area and a connecting talus. We, thus, investigated the interplay between the accumulation of the sediments and their associated artifacts in the occupation areas and the translocation of part of these sediments and artifacts down the talus. We examined the lithostratigraphy of two excavation locations in the occupation area (areas E and I), and two in the talus (areas C and D). We also assessed the diagenetic processes that have affected all these areas. A linear array of stalagmites and stalactites separates the occupation area from the talus, demarcating a major topographic barrier between the two. We infer that during human occupation, sediment accumulation of soil, wood ash, and bone was rapid and that some sediments with their associated artifacts overflowed the barrier and translocated down the talus. During periods of nonoccupation, the ash in the occupation area partially dissolved owing to the release of acid from the degrading bat and bird guano, and the layer thicknesses decreased. The south side of the talus (area C) has a normally stratified archaeological record, with the older archaeological materials underlying the younger materials. This suggests that the barrier between the occupation area and area C was relatively shallow and allowed a fairly continuous sediment accumulation in the talus. In the central part of the talus (area D), the stratigraphy is complex and shows mixing, presumably owing to the steep underlying bedrock topography and the mixing that occurs when sediments move down a steep slope. Finally, the distribution of secondary phosphates is consistent with the location of a main cave entrance to the south of the Paleolithic occupation area., (Copyright © 2020 Elsevier Ltd. All rights reserved.)
- Published
- 2021
- Full Text
- View/download PDF
3. Preliminary observations on the Levantine Aurignacian sequence of Manot Cave: Cultural affiliations and regional perspectives.
- Author
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Marder O, Shemer M, Abulafia T, Bar-Yosef Mayer D, Berna F, Caux S, Edeltin L, Goder-Goldberger M, Hershkovitz I, Lavi R, Shavit R, Tejero JM, Yeshurun R, and Barzilai O
- Subjects
- Bayes Theorem, Caves, Humans, Radiometric Dating, Archaeology, Fossils
- Abstract
A well-preserved sequence of Early Upper Paleolithic (EUP) occupations has been revealed in the past decade in Manot Cave, the studies of which shed light on the cultural dynamics and subsistence patterns and paleoenvironment. Most intriguing is the series of overlying Levantine Aurignacian occupation layers, exposed near the entrance to the cave. Area E is considered the inner part of the main activity area in Manot Cave. Remains of intact combustion features, as well as numerous flint artifacts and faunal remains, were found, indicating a high level of preservation. Within a 2.5 m sequence, nine distinct occupation layers were defined. The presence of characteristic flint and osseous industries alongside a rich mollusk assemblage led to the initial association of the sequence as a whole to the Levantine Aurignacian. However, as research advanced and variability in the material culture became apparent, it became clear that a division of the sequence into two phases, early and late, is required. A preliminary study of the assemblage variability implies distinct changes in human behavior between the two phases. Most prominently, these are indicated by a change in bladelet production method and morphology alongside an increase in the significance of the bladelet component within the flint assemblage, the disappearance of composite osseous industries, and a steep decrease in mollusk shell representation in the late occupation phase. Radiocarbon dating indicates a short time span between the two phases. The earlier phase defined as, Levantine Aurignacian, was ascribed an age range of 38-34 ka cal BP with a more constrained age range of 37-35 ka cal BP suggested based on Bayesian models. In the late phase, which is temporarily referred to as "post-Levantine Aurignacian," an age range of 36-33 ka cal BP is suggested., (Copyright © 2019. Published by Elsevier Ltd.)
- Published
- 2021
- Full Text
- View/download PDF
4. Hominin fire use in the Okote member at Koobi Fora, Kenya: New evidence for the old debate.
- Author
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Hlubik S, Cutts R, Braun DR, Berna F, Feibel CS, and Harris JWK
- Subjects
- Animals, Archaeology, Kenya, Paleontology, Biological Evolution, Fires, Hominidae
- Abstract
Hominin fire use in the early Pleistocene has been debated since the early 1970s when consolidated reddened sediment patches were identified at FxJj20 East and Main, Koobi Fora, Kenya. Since then, researchers have argued for evidence of early Pleistocene fire use at a handful of archaeological sites with evidence of combustion. Some argue that morphological evidence of early Homo erectus fossils indicates a dietary shift to higher quality food sources, which could be achieved by cooking. Others contend that fire use does not become a regular behavior until later, in the middle Pleistocene, when archaeological sites begin to show regular evidence for fire use. An early date for hominin control of fire would help to explain the grade changes seen with the appearance of H. erectus, while a later date would mean that fire would have had little influence on the early development of the lineage. Early hominins would have encountered fire regularly on the landscape, increasing the possibility of hominins interacting with and habituating to natural landscape fire. Only a detailed understanding of the patterns of controlled and natural fires can lead to understanding of early hominin fire use. We present new work on the evidence of fire at the FxJj20 Site complex in Koobi Fora, dated to 1.5 Ma. We highlight evidence of burning found on site through Fourier Transform Infrared spectrometry, and describe ongoing work to investigate the association of hominin behavior and fire evidence. We present data supporting the hypothesis that the site is undisturbed and discuss spatial relationships showing burned material associated with non-burned material. We present data on a type of stone fragment, the Thermal Curve Fragment (TCF), which is indicative of knapped material being exposed to high heat. Finally, we suggest future directions on the topic of fire in the early Pleistocene., (Copyright © 2019 Elsevier Ltd. All rights reserved.)
- Published
- 2019
- Full Text
- View/download PDF
5. On the evidence for human use and control of fire at Schöningen.
- Author
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Stahlschmidt MC, Miller CE, Ligouis B, Hambach U, Goldberg P, Berna F, Richter D, Urban B, Serangeli J, and Conard NJ
- Subjects
- Geologic Sediments, Germany, Humans, Wood, Archaeology, Fires
- Abstract
When and how humans began to control fire has been a central debate in Paleolithic archaeology for decades. Fire plays an important role in technology, social organization, subsistence, and manipulation of the environment and is widely seen as a necessary adaptation for the colonization of northern latitudes. Many researchers view purported hearths, burnt wooden implements, and heated flints from Schöningen as providing the best evidence for the control of fire in the Lower Paleolithic of Northern Europe. Here we present results of a multianalytical study of the purported hearths along with a critical examination of other possible evidence of human use or control of fire at Schöningen. We conclude that the analyzed features and artifacts present no convincing evidence for human use or control of fire. Our study also shows that a multianalytical, micro-contextual approach is the best methodology for evaluating claims of early evidence of human-controlled fire. We advise caution with macroscopic, qualitative identification of combustion features, burnt flint, and burnt wood without the application of such techniques as micromorphology, Fourier transform infrared (FTIR) spectroscopy, organic petrology, luminescence, and analysis of mineral magnetic parameters. The lack of evidence for the human control of fire at Schöningen raises the possibility that fire control was not a necessary adaptation for the human settlement of northern latitudes in the Lower Paleolithic., (Copyright © 2015 Elsevier Ltd. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
6. The depositional environments of Schöningen 13 II-4 and their archaeological implications.
- Author
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Stahlschmidt MC, Miller CE, Ligouis B, Goldberg P, Berna F, Urban B, and Conard NJ
- Subjects
- Animals, Germany, Humans, Spectroscopy, Fourier Transform Infrared, Archaeology, Geologic Sediments, Lakes
- Abstract
Geoarchaeological research at the Middle Pleistocene site of Schöningen 13 II-4, often referred to as the Speerhorizont, has focused on describing and evaluating the depositional contexts of the well-known wooden spears, butchered horses, and stone tools. These finds were recovered from the transitional contact between a lacustrine marl and an overlying organic mud, originally thought to be a peat that accumulated in place under variable moisture conditions. The original excavators proposed that hominin activity, including hunting and butchery, occurred on a dry lake shore and was followed by a rapid sedimentation of organic deposits that embedded and preserved the artifacts. Our geoarchaeological analysis challenges this model. Here, we present evidence that the sediments of Schöningen 13 II-4 were deposited in a constantly submerged area of a paleolake. Although we cannot exclude the possibility that the artifacts were deposited during a short, extreme drying event, there are no sedimentary features indicative of surface exposure in the sediments. Accordingly, this paper explores three main alternative models of site formation: anthropogenic disposal of materials into the lake, a geological relocation of the artifacts, and hunting or caching on lake-ice. These models have different behavioral ramifications concerning hominin knowledge and exploitation of the landscape and their subsistence strategies., (Copyright © 2015 Elsevier Ltd. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
7. The Oldowan horizon in Wonderwerk Cave (South Africa): archaeological, geological, paleontological and paleoclimatic evidence.
- Author
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Chazan M, Avery DM, Bamford MK, Berna F, Brink J, Fernandez-Jalvo Y, Goldberg P, Holt S, Matmon A, Porat N, Ron H, Rossouw L, Scott L, and Horwitz LK
- Subjects
- Animals, Geologic Sediments, Hominidae, Mammals, Mandible anatomy & histology, Paleontology, South Africa, Archaeology, Climate, Fossils, Tool Use Behavior
- Published
- 2012
- Full Text
- View/download PDF
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