Results 41 to 50 of about 7,194,103 (209)
Archaeometry, Volume 68, Issue 5, Page 994-1008, October 2026.ABSTRACT This study examines Wari obsidian production in a cache of 39 bifaces found at the Late Moche site of San José de Moro (Jequetepeque Valley, North Coast of Peru, 700–850 ad). Portable X‐ray fluorescence, geometric morphometric, and technological analyses were used to investigate raw material provenance and bifacial production.
Antonio Pérez‐Balarezo +2 more
wiley +1 more source
On sourcing obsidian assemblages from the Mediterranean area: analytical strategies for their exhaustive geochemical characterisation [PDF]
, 2020 This paper presents an overview of the work conducted by our research group in the Mediterranean area. Initiated in the 1990s by the late Gérard Poupeau, our research relies on international and multidisciplinary collaborations to endeavour ...
Orange, Marie +7 more
core +2 more sources
An overview of the knapped stone economy at the Tărtăria site (Romania)
Journal of Lithic Studies, 2016 This study focused on sourcing the lithic artefacts from the Tărtăria site in the Transylvanian Basin. The objective was to establish a model of the procurement patterns of the population at the settlement. This site is located along the middle region of
Otis Crandell
doaj +1 more source
Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.Abstract Widespread plagioclase detections on Mars using orbital visible to near infrared (VNIR) reflectance spectra have led to multiple interpretations of “feldspathic” terrain, ranging from ancient crustal material and evolved plutons to volcanic lava flows.
Hunter Vannier +5 more
wiley +1 more source
Assessing the future challenges in strategic sourcing commodity from China:A case-study analysis [PDF]
, 2010 There has been an increasing trend of global sourcing garment supply from South-East Asia but the challenges confronting retailers sourcing commodity and seasonal garments from countries such as China are less well understood. A supplier evaluation model
Song, Yi +3 more
core +1 more source
Open Archaeology, 2019 The peopling of Island Southeast Asia is told through the Austronesian migration theory. During the Neolithic Period (ca. 6000–5000 BP), the Austronesians entered the Philippines altering the cultural landscape and heralding the beginning of the ...
Neri Leee Anthony M.
doaj +1 more source
Analele Banatului XXIII 2015, 2015 This article concerns the chemical analysis by X-ray fluorescence and source determination for five obsidian artifacts from archaeological sites in Banat (Southwest Romania).
M. Glascock +2 more
semanticscholar +1 more source
Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2393-2405, September 2026.Abstract The light element distribution in planetary cores and the processes driving core evolution in rocky planets are poorly understood. Magmatic iron meteorites are samples from the cores of ancient embryonic planetesimals and therefore provide a window into the processes governing core evolution. We performed high precision oxygen isotope analyses
R. J. Windmill +4 more
wiley +1 more source
A Microphysical Model for Predicting Magma Fragmentation
Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.Abstract Explosive volcanic eruptions occur when coherent bubbly magma breaks apart in a process called “fragmentation.” Accurate conceptual and numerical models of fragmentation are a pre‐requisite for prediction of eruption explosivity. However, existing models, which neglect bubble‐scale magma physics, agree poorly with new experimental evidence ...
Jérémie Vasseur +6 more
wiley +1 more source
Advanced Experiment Design Strategies for Drug Development
Advanced Intelligent Discovery, Volume 2, Issue 4, August 2026.Wang et al. analyze 592 drug development studies published between 2020 and 2024 that applied design of experiments methodologies. The review surveys both classical and emerging approaches—including Bayesian optimization and active learning—and identifies a critical gap between advanced experimental strategies and their practical adoption in ...
Fanjin Wang +3 more
wiley +1 more source