Results 71 to 80 of about 5,024 (208)

Sourcing obsidian from prehistoric sites in northwest Romania

open access: yesMateriale și Cercetări Arheologice, 2018
Portable X‐ ray Fluorescence Spectroscopy (pXRF) was used to reveal the chemical signatures of 75 obsidian artefacts from seven sites in the Satu Mare region, ranging in age from Early Neolithic (late Starčevo‐ Criș culture) to Late Copper Age.
Boroneanț, A.   +3 more
doaj   +1 more source

Foliar Elemental Analysis of Brazilian Crops via Portable X-ray Fluorescence Spectrometry

open access: yesSensors, 2020
Foliar analysis is very important for the nutritional management of crops and as a supplemental parameter for soil fertilizer recommendation. The elemental composition of plants is traditionally obtained by laboratory-based methods after acid digestion ...
Camila S. Borges   +7 more
doaj   +1 more source

Wyniki analiz spektrometrycznych dwóch dzbanów fenickich z kolekcji gołuchowskiej [PDF]

open access: yes, 2018
This paper presents results of the spectrometric analyses of two Phoenician jugs from the Gołuchów collection. A non-invasive portable X-ray fluorescence spectrometer (pXRF) has been used to determine the chemical composition of the jugs. The aim of this
Głuszek, Inga, Krueger, Michał
core   +2 more sources

Geoarchaeological Investigation of Early Neolithic Lagoonal Fringe Landscapes in the Netherlands

open access: yesGeoarchaeology, Volume 41, Issue 1, January/February 2026.
ABSTRACT Coastal wetlands have historically been portrayed as too marginal for early crop cultivation during the Mesolithic–Neolithic transition due to their dynamic hydrology, low elevation, and poor drainage. However, growing evidence suggests that these environments played a crucial role in the spread of agriculture. We examined buried and submerged
Elena Familetto   +5 more
wiley   +1 more source

Economic space: On the analysis and interpretation of pottery production and distribution [PDF]

open access: yes, 2016
Ceramics are particularly well suited for investigating general patterns of the distribution of premodern products. Archaeometric methods, used to determine raw materials and production techniques, permit the identification of places of production.
Bernbeck, R   +11 more
core  

Izu-Bonin-Mariana Rear Arc - The missing half of the subduction factory, 30 March – 30 May 2014 [PDF]

open access: yes, 2014
International Ocean Discovery Program (IODP) Hole U1436A (proposed Site IBM-4GT) lies in the western part of the Izu fore-arc basin, ~60 km east of the arc-front volcano Aogashima, ~170 km west of the axis of the Izu-Bonin Trench, 1.5 km west of Ocean ...
Andrews, G. D. M.   +31 more
core   +1 more source

The mineral and isotopic signatures of glacially eroded sediments exported from Hudson Strait to the Labrador Sea during Hudson Strait Heinrich events H0 to H4

open access: yesJournal of Quaternary Science, Volume 41, Issue 1, Page 4-24, January 2026.
ABSTRACT The sediment signature of glacial erosion products exported from Hudson Strait to the Labrador Sea during Hudson Strait Heinrich (HS‐H) events is evaluated using four distinct proxies: paired δ18Ο and δ13C data on the carbonate fraction, εNd and U–Pb isotopes in the silicate fraction, the mineral composition of the <2 mm bulk sediment fraction,
John T. Andrews   +3 more
wiley   +1 more source

Characterization and Provenance of Archaeological Obsidian from Pirozza-Spalmatore, a Site of Neolithic Colonization on the Island of Ustica (Sicily)

open access: yesOpen Archaeology, 2019
This article presents the first archaeometric research carried out so far on a group of obsidian artifacts collected in the promontory of Pirozza-Spalmatore, the site of a Neolithic settlement on the small island of Ustica (Sicily, Italy).
Franco Foresta Martin, Tykot Robert H.
doaj   +1 more source

The local paleoenvironment of Kalavan‐2 based on small‐vertebrate remains and its implications for human‐environment‐dynamics between 60 and 35 ka in the Armenian Highlands

open access: yesJournal of Quaternary Science, Volume 41, Issue 1, Page 153-177, January 2026.
ABSTRACT Kalavan‐2, a high‐altitude (∼1640 m a.s.l.) open‐air site in Armenia, preserves stratified Middle Paleolithic occupations with a rich small‐vertebrate record. Luminescence dating has placed site formation between ~60 and 45 ka, but without independent chronological control of the microvertebrate accumulation.
Dominik L. Rogall   +4 more
wiley   +1 more source

Advancing Leaf Nutritional Characterization of Blueberry Varieties Adapted to Warm Climates Enhanced by Proximal Sensing

open access: yesAgriEngineering
Blueberries offer multiple health benefits, and their cultivation has expanded to warm tropical regions. However, references for foliar nutritional content are lacking in the literature.
Sérgio H. G. Silva   +8 more
doaj   +1 more source

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