Results 21 to 30 of about 2,620 (191)

Travelin’ stones: The oolitic chert blades from Zambujal Chalcolithic enclosure (Torres Vedras, Portugal)

open access: yesJournal of Lithic Studies
The Oolitic chert is an important raw material for large blade production in Betic Cordillera (Spain) during 4th-3rd mill. BCE. These blades are part of a long-distance trade network of artefacts found in Chalcolithic settlements of southwestern Iberia ...
Patrícia Jordão   +3 more
doaj   +1 more source

Miocene to Quaternary Tectonostratigraphic Evolution of the Northern Section of the Burdur‐Fethiye Shear Zone, South‐Western Türkiye

open access: yesGeological Journal, EarlyView.
New zircon ages reveal that lacustrine sedimentation initiated in the Late Miocene (Messinian), revising earlier Pliocene age assignments. The study results support the interpretation of the northern BFSZ as a broad left‐lateral transtensional shear zone rather than a discrete sinistral fault or simple extensional graben array.
İrem Elitez   +3 more
wiley   +1 more source

Global Chert Database: A summary record of global chert samples

open access: yesGeoscience Data Journal
Chert is a sedimentary rock abundant and conspicuous throughout the geologic record. It serves as an essential geological archive and is vital for palaeogeographic reconstruction. The Chert Database Working Group is part of the OneSediment Working Groups
Chenyu Wang   +5 more
doaj   +1 more source

Characteristics, distribution and diagenetic stages of chert in the La Silla Formation (Lower Ordovician), Argentine Precordillera

open access: yesAnais da Academia Brasileira de Ciências, 2009
The late Cambrian - late Tremadocian La Silla Formation is a carbonate unit of the eastern Precordillera in Argentina whose facies indicate a shallow platform environment. Until this moment, there were no studies that referred to the diagenetic evolution
Mariana M. Raviolo   +2 more
doaj   +1 more source

A reappraisal of the Middle to Later Stone Age prehistory of Morocco Réévaluer la préhistoire du Maroc, du Middle Stone Age au Later Stone Age

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
Over the last 25 years, perceptions of the early prehistory of Northwest Africa have undergone radical changes due to new fieldwork projects and a corresponding growth in scientific interest in the region. Much of this work has been focused in Morocco, known for its extremely rich fossil and archaeological records in caves and rock shelters.
Nick Barton   +3 more
wiley   +1 more source

Geochemical Data of Scaglia Bianca Chert from Central Italy for Provenance Studies

open access: yesJournal of Open Archaeology Data
This work presents the first geochemical characterization data of Scaglia Bianca Fm chert from Central Italy. The dataset is part of the chert reference collection (SiliROck) of Sapienza, University of Rome, and includes 110 chert samples collected from ...
Elena Carletti   +5 more
doaj   +1 more source

125 years of exploration and research at Gough's Cave (Somerset, UK) 125 ans d'exploration et de recherches à Gough's Cave (Somerset, Royaume‐Uni)

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
Our understanding of the recolonization of northwest Europe in the period leading up to the Lateglacial Interstadial relies heavily on discoveries from Gough's Cave (Somerset, UK). Gough's Cave is the richest Late Upper Palaeolithic site in the British Isles, yielding an exceptional array of human remains, stone and organic artefacts, and butchered ...
Silvia M. Bello   +2 more
wiley   +1 more source

Identificación y aprovisionamiento de ftanita o chert en la cuenca superior del Arroyo Tapalqué (Olavarría, provincia de Buenos Aires, Argentina)

open access: yesEstudios Atacameños, 2004
Un alto porcentaje de los artefactos líticos que han sido recuperados en los sitios arqueológicos de la cuenca superior del Arroyo Tapalqué (Olavarría, Buenos Aires, Argentina) han sido confeccionados sobre ftanita o chert. Esta materia prima aparece en
María Paula Barros   +1 more
doaj   +8 more sources

Raw material studies of West Central Serbia

open access: yesJournal of Lithic Studies, 2014
This paper deals with raw material problems in the territory of West Central Serbia geologically determined as the Čačak-Kraljevo (or West Morava) basin. Our research is presented through the most striking case studies, Lojanik, Vlaška Glava and Lazac.  
Vera Bogosavljević Petrović   +1 more
doaj   +1 more source

Development of Deep-Sea Anoxia in Panthalassa During the Lopingian (Late Permian): Insights From Redox-Sensitive Elements and Multivariate Analysis

open access: yesFrontiers in Earth Science, 2021
The end-Permian mass extinction (EPME) was the most severe mass extinction event of the Phanerozoic, and was associated with the development of global oceanic anoxia.
Tetsuji Onoue   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy