Katja Douze

Katja Douze
University of Geneva | UNIGE · Department of Genetics and Evolution

Researcher in African Palaeolithic - University of Geneva

About

45
Publications
16,060
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503
Citations
Additional affiliations
March 2013 - December 2016
University of the Witwatersrand
Position
  • PostDoc Position
October 2008 - December 2012
Université Bordeaux 1
Position
  • PhD Student
October 2008 - October 2012
University of Bordeaux
Position
  • PhD Student

Publications

Publications (45)
Article
Full-text available
In this paper, we introduce a recently initiated research project conducted at Bushman Rock Shelter, on the northeastern edge of the Highveld plateau in Limpopo Province, South Africa. Previous excavations carried out at the site during the 1960s and 1970s exposed a deep and well-stratified sequence of c. 7 metres of archaeological deposits associa...
Article
Full-text available
Over the past decade, the increasing wealth of new archaeological data on the Middle Stone Age (MSA) in Senegal and Mali has broadened our understanding of West Africa's contributions to cultural developments. Within the West African sequence, the phase of Marine Isotope Stage 3 (MIS 3, ca. 59-24 ka) yielded so far the best known and extensive arch...
Chapter
Full-text available
La mission de terrain 2020 dans la Vallée de la Falémé, Sénégal oriental, avait pour objectif de documenter plus précisément les dynamiques d’occupation les plus anciennes, de l’Acheuléen au Middle Stone Age ; de mettre en évidence le passage, encore mal compris, des derniers chasseurs-cueilleurs aux sociétés productrices ; de préciser la variabili...
Article
Full-text available
The Ravin Blanc I archaeological occurrence, dated to MIS 5, provides unprecedented data on the Middle Stone Age (MSA) of West Africa since well-contextualized archaeological sites pre-dating MIS 4/3 are extremely rare for this region. The combined approach on geomorphology, phytolith analysis, and OSL date estimations offers a solid framework for...
Data
Published table 1, in table format for more clarity. From: Douze et al. 2021. A West African Middle Stone Age site dated to the beginning of MIS 5: Archaeology, chronology, and paleoenvironment of the Ravin Blanc I (eastern Senegal). Journal of Human Evolution, 154, 102952.
Book
Cet ouvrage est le fruit d’une longue et étroite collaboration entre une équipe française comprenant des spécialistes de nombreuses disciplines archéologiques et paléo-environnementales et un institut de recherche djiboutien dédié à la recherche archéologique et historique. Leur terrain d’étude se situe dans le bassin du Gobaad, des abords du lac A...
Chapter
The archaeological data available in Africa for the period ranging from 75 to 12 ka are generally attributed to two major Palaeolithic phases: the Middle Stone Age (MSA) and the Later Stone Age (LSA). This timeframe corresponds to the last glacial period the Earth experienced, characterised by high climatic variability and a general trend towards m...
Chapter
Full-text available
Le projet « Peuplement humain et paléoenvironnement en Afrique – Projet Falémé », mené depuis 2012 au Sénégal oriental, a permis de construire des cadres de référence chrono- culturels préhistoriques et historiques dans un contexte archéologique très riche qui avait peu retenu l’attention jusque-là. Les missions régulières dans la vallée de la Falé...
Chapter
Full-text available
Edge convergence, which is typical for pointed tools, is a major morphological feature contributing to the definition of the African Middle Stone Age (MSA). The multifaceted character of points might be the key to their success and for their recurrent adoption by prehistoric populations. Whether MSA points represent a good proxy to identify populat...
Article
Full-text available
Les études menées le long de la Falémé, affluent du Sénégal, dans le secteur Sansandé-Missira, permettent de se faire une idée assez précise de la stratigraphie des formations sédimentaires qui se dévoilent à la faveur de l’incision récente du cours d’eau. Les datations OSL calent l’essentiel de ces dépôts du dernier cycle climatique, avec une très...
Book
Full-text available
Pourquoi des scientifiques – spécialistes en anthropologie biologique et culturelle – proposent-ils, ici et maintenant, une exposition sur la diversité humaine de l’Afrique ? Parce que ce continent est celui où notre espèce Homo sapiens est apparue et a vécu la plus grande partie de son existence. Toutes les habitantes et tous les habitants actuels...
Presentation
Full-text available
La conférence abordera les principaux résultats des recherches archéologiques menées par l’Université de Genève au Sénégal oriental. Nous parlerons ainsi de l'un des très rares sites acheuléens ouest-africains in situ et en stratigraphie daté entre 250’000 et 200’000 ans, d'un Âge du fer ancien remontant au 4e siècle avant notre ère, ou d’un site s...
Article
Full-text available
Dans le cadre du projet Peuplement humain et paléoenvironnement en Afrique, coordonné par l’un des auteurs (É.H.) et financé par le Fonds National Suisse de la recherche scientifique (FNS), la Fondation Suisse-Liechtenstein pour les Recherches Archéologiques à l’Étranger (SLSA), l’Agence Nationale de la Recherche française (ANR) et la Faculté des S...
Article
Sahle and Braun's (in press) recent comments on our identification (Douze and Delagnes, 2016) of diachronic trends in Middle Stone Age point traditions in several lithic assemblages from the sites of Gademotta and Kulkuletti (Ethiopia) focuses on pointed tool function rather than the gradual technological shifts we observed between sites. Here we a...
Article
Full-text available
Howiesons Poort (HP) sites, over the past decades, have provided exceptional access to anthropogenic remains that are enhancing our understanding of early modern human behaviour during the Middle Stone Age in southern Africa. Here, we analyse the technological and typological trends in the lithic record that form part of these behaviours, based on...
Data
Dimensions of backed tools per type and raw material (expressed in mm). Blanks: FL: Flake, BL: Blade, Indet.: Indeterminate. (DOCX)
Presentation
Bifacial points are widespread tools over the northern half of the African continent during the Middle Stone Age. These are common components in the lithic industries, but are not often the subject of a specific interdisciplinary study associating functional technology, typology and traceology with environmental contextualization. Such comprehensiv...
Presentation
Bifacial points are widespread tools over the northern half of the African continent during the Middle Stone Age. They are common components in the lithic industries, but are not often the subject of a specific interdisciplinary study associating functional technology, typology and traceology, and environmental contextualization. Such comprehensive...
Chapter
Full-text available
Le présent rapport de la campagne 2017 au Sénégal oriental, menée dans le cadre du programme international « Peuplement humain et paléoenvironnement en Afrique », intègre les résultats de deux projets complémentaires : le projet ANR-FNS CheRCHA, ainsi que le projet FNS Falémé. Le premier vise à reconstituer le cadre chronostratigraphique et les évo...
Presentation
Full-text available
Les recherches menées dans la vallée de la Falémé (Sénégal Oriental) ont déjà livré des données paléoenvironnementales couvrant le Pléistocène supérieur, permettant une première comparaison avec les données et résultats issus des recherches menées en zone sahélienne, dans la vallée du Yamé (Pays Dogon, Mali). La poursuite de ces recherches et la mu...
Article
Full-text available
Heating stone to enhance its flaking qualities is among the multiple innovative adaptations introduced by early modern human groups in southern Africa, in particular during the Middle Stone Age Still Bay and Howiesons Poort traditions. Comparatively little is known about the role and impact of this technology on early modern human behaviors and cul...
Data
Sample of silcrete reference collection used for comparison. A, B: illustration of experimental flakes struck before and after the heating of each block. (PDF)
Data
Silcrete cores from layer PBD. A, B, C, D: Picture and technological drawing of each core. Caption for drawings: 1. knapping platform preparation, 2. convexity preparation, 3. blade removal without initiation, 4. blade removal with initiation, 5. indeterminate removal, 6. cortex or patina, 7. pre-heating surface, 8. heat-induced fracture, 9. post-h...
Article
Full-text available
Blombos Cave is well known as an important site for understanding the evolution of symbolically mediated behaviours among Homo sapiens during the Middle Stone Age, and during the Still Bay in particular. The lower part of the archaeological sequence (M3 phase) contains 12 layers dating to MIS 5 with ages ranging from 105 to 90 ka ago (MIS 5c to 5b)...
Article
Full-text available
This paper presents the lithic analysis from the stratified deposits of one of the Laas Geel rock shelters in Somaliland (Shelter 7). This set of sites identified in 2002 is composed of around 20 rock shelters, most featuring polychromic paintings attributed to the Holocene. Moreover, Shelter 7 yielded numerous remains that are divided into two maj...
Article
Full-text available
The earliest stages of the MSA show the emergence of a number of technical innovations accompanying the appearance of uni-bifacial pointed tools that are the hallmarks of this period. Within the oldest sites of Gademotta and Kulkuletti, a specific technical process applied on convergent tools has been identified: the lateral tranchet blow technical...
Article
Full-text available
Research conducted along the Bulbula River (Ziway–Shala basin, Main Ethiopian Rift) has yielded archaeological assemblages that document various phases of the Upper Pleistocene and the early Holocene. The oldest period documented is dated to ∼34–33,000 Cal BP (DW1), and the second is dated to the Pleistocene/Holocene transition, between 14,000 and...
Article
Full-text available
Surveys for archaeological sites in the De Hoop Nature Reserve, southern Cape, South Africa resulted in the discovery of a cave complex comprising two locations, Klipdrift Cave and Klipdrift Shelter. Excavations commenced in 2010 with Later Stone Age deposits initially being recovered at the former site and Middle Stone Age deposits at the latter....
Book
This published thesis presents new technological insights concerning Middle Stone Age (MSA) lithic industries from the end of the Middle Pleistocene in Ethiopia. Based mainly on a reanalysis of three major occupation sites from Gademotta and Kulkuletti (Lake Ziway Area, Main Ethiopian Rift Valley) initially excavated by F. Wendorf, R. Schild and co...
Article
Full-text available
Prehistory of the Central Main Ethiopian Rift (Ziway-Shala basin): Establishing the Late Stone Age sequence in Eastern Africa – Supported by the CFEE, ARCCH, MAEE, INRAP and the laboratory TRACES, this project, "Late Stone Age sequence in Ethiopia", is devoted to the collection of new data on the late prehistory of the Horn of Africa. To answer to...
Article
Full-text available
The project "Late Stone Age sequence in Ethiopia" is devoted to the collection of new data on the late prehistory of the Horn of Africa. The Ziway-Shala basin, in the Main Ethiopian Rift was selected for various reasons. Firstly, it is an ideal area to investigate whether and to what degree humans adapted to such lacustrine landscapes. In particula...
Article
Full-text available
Soutenue par le CFEE, le ARCCH, le MAEE, l’INRAP et le laboratoire TRACES, la mission «Late Stone Age sequence in Ethiopia » est dediee a la reunion de nouvelles donnees sur la prehistoire recente de la Corne de l’Afrique. Afin de repondre a cet objectif, plusieurs campagnes de terrain se sont deroulees depuis 2007 dans la region des lacs Ziway, Ab...
Thesis
Full-text available
This thesis presents new technological insights concerning Middle Stone Age (MSA) lithic industries from the end of the Middle Pleistocene in Ethiopia. Based mainly on a new analysis of three major occupation sites from Gademotta and Kulkuletti (Lake Ziway Area, Main Ethiopian Rift Valley) initially excavated by F. Wendorf, R. Schild and collaborat...
Article
Full-text available
Eastern Africa in the general reflection on the Middle Stone Age – The main research topics on the Middle Stone Age are the discovery of the earliest known Homo sapiens in eastern Africa and the early occurrence of symbolic remains throughout the continent. This paper presents the theoretical controversies about the emergence of a behavioral modern...
Presentation
Le complexe de Gademotta et Kulkuletti (Ziway, Ethiopie) offre un témoignage archéologique qui couvre la fin du Pléistocène moyen. Les industries lithiques issues des sites stratifiés et datés qui se rapportent à cette période sont extrêmement rares, et font de ce complexe une référence encore inégalée pour le début du Middle Stone Age en Afrique d...

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Cited By

Projects

Projects (5)
Project
Leplongeon Alice, Goder-Goldberger Mae & Pleurdeau David (eds) 2020 — Not just a Corridor. Human occupation of the Nile Valley and neighbouring regions between 75,000 and 15,000 years ago. Paris : Muséum national d’Histoire naturelle, 364 p. (Natures en Sociétés ; 3). More information about the publication here: http://sciencepress.mnhn.fr/en/collections/natures-en-societes/not-just-a-corridor This publication is one of the outcomes of the workshop organised in Paris at the French National Museum of Natural History (Musée de l'Homme) and Institut de Paléontologie Humain in June 2018, with funding from the Wenner-Gren Foundation and the ANR Project Big Dry. More information about the workshop here: https://notjustacorridor.jimdofree.com/
Project
De récentes découvertes de fossiles en Afrique ont reculé la date d'apparition de notre espèce, Homo sapiens, à environ 300'000 ans. Depuis cette origine ancienne, les êtres humains se sont dispersés sur l'ensemble du continent, avant de peupler le reste de la planète. Au gré des changements climatiques et environnementaux qui marquent la période, les populations se sont déplacées et diversifiées sur les plans biologique (traits génétiques divers, pigmentations, statures...) et culturel (techniques, diètes, langues...). L'étonnante diversité humaine visible aujourd'hui en Afrique est ainsi le résultat d'une longue histoire, faite de multiples migrations, interactions, adaptations et innovations. En donnant la parole aux généticien-ne-s et préhistorien-ne-s de l'unité d'anthropologie de l'université de Genève, l'exposition se propose de vous raconter l'histoire humaine sur le continent africain. A visiter du 13 juin au 6 septembre 2019 à la salle d'exposition de l'université de Genève au 66, bd Carl-Vogt (lun-ven 7h30-19h) - entrée libre. Egalement du 28 septembre 2019 au 19 janvier 2020 au Muséum d'histoire naturelle de Genève. www.unige.ch/-/afrique Présentation dans le Journal de l'UNIGE no 161: https://www.unige.ch/lejournal/numeros/journal161/