Results 61 to 70 of about 2,567 (243)

Probabilitas Mineral Pasir Besi Titan Yogyakarta Berdasarkan Studi pXRF

Jurnal Teknologi Mineral dan Batubara, 2020
Pasir besi titan dari Yogyakarta dikarakterisasi menggunakan portable x-ray fluorescence (pXRF) dengan algoritma soil (W- tube , 40 kV) dan alloy (Rh- tube , 50 kV). Hasil karakterisasi menggunakan algoritma soil menunjukkan kandungan unsur-unsur Fe (19,71 wt .%), Ca (5,86 wt .%), Ti (2,64 wt .%), K (0,84 wt. %) dan light elements (70,13
Ibrahim Purawiardi, Rustiadi Purawiardi, Florentinus Firdiyono   +2 more
openaire   +2 more sources

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

Journal 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, Monika V. Knul, Hugues‐Alexandre Blain, Boris Gasparyan, Ariel Malinsky‐Buller   +4 more
wiley   +1 more source

On-Site Identification of Pottery with pXRF: An Example of European and Chinese Red Stonewares [PDF]

, 2021
Gülsu Şimşek Franci, Philippe Colomban   +1 more
openalex   +1 more source

Heavy Metal Contamination in Chocolates and Candies: Sources, Health Risks, and Analytical Insights

Journal of Chemistry, Volume 2026, Issue 1, 2026.
The presence of heavy metals in chocolates and candies poses growing public health concerns, particularly for children who are frequent consumers. This review consolidates evidence on the occurrence, sources, toxicological impacts, and analytical monitoring of metals, including Pb, Cd, Hg, As, Cr, Ni, and Al, in confectionery products.
Mahmood Ahmed, Maryam, Ali Abbas Aslam, Fatima Aftab, Ahmad Saeed, Mudassar Sanaullah, Muhammad Hassan, Riaz Hussain, Eisha Eiman, Masooma Irfan, Muhammad Yaseen, Muhammad Zaeem Mehdi, Sohini Basu Roy   +12 more
wiley   +1 more source

Thermal properties of orogenic flysch and schist, Rakaia Terrane, Torlesse Composite Terrane, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 68, Issue 4, Page 831-847, December 2025.
ABSTRACT Voluminous, deformed, and variably metamorphosed argillite and greywacke sediments (flysch) are common orogenic rock types. Knowledge of their physical properties is required to make tectonic and geothermal models of modern and ancient plate boundaries.
Adam Gouwland, Rupert Sutherland, Anya Seward   +2 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 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

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

Sensors, 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, David C. Weindorf, Geila S. Carvalho, Luiz R. G. Guilherme, Thalita Takayama, Nilton Curi, Geraldo J. E. O. Lima, Bruno T. Ribeiro   +7 more
doaj   +1 more source

Comment on: 'Stonehenge revisited: A geochemical approach to interpreting the geographical source of sarsen stone #58'

Archaeometry, Volume 67, Issue 6, Page 1423-1436, December 2025.
Abstract In a recent paper in this journal (Hancock et al. (2024) Stonehenge revisited: A geochemical approach to interpreting the geographical source of sarsen stone #58. Archaeometry https://www.doi.org/10.1111/arcm.12999), Hancock and colleagues present a reanalysis of the geochemical dataset used to identify the likely source for the majority of ...
David J. Nash, T. Jake R. Ciborowski
wiley   +1 more source

Investigation by pXRF of Caltagirone Pottery Samples Produced in Laboratory

Open Archaeology, 2017
In the study of archaeological ceramics, it is important to have compositional data to identify their origin and source. The fabric also provides useful information on the production technology, especially with regard to the firing steps.
Gueli Anna M., Delfino Antonio, Nicastro Emanuele, Pasquale Stefania, Politi Giuseppe, Privitera Antonella, Spampinato Sofia, Stella Giuseppe   +7 more
doaj   +1 more source

Geoarchaeology in the Absence of Layers: Large‐Scale Sampling From an Iron Age Urban Context in the Southern Levant

Geoarchaeology, Volume 40, Issue 6, November/December 2025.
ABSTRACT Understanding the impact of erosion and postdepositional processes is essential for reconstructing site formation in ancient tells. At Tel1 Burna, a multiperiod stratified site in the Shephelah region of central Israel, we integrate portable X‐ray fluorescence (pXRF), portable optically stimulated luminescence (pOSL), and organic residue ...
Martin P. Janovský, Sabina Millerová, Chris McKinny, Oren Ackermann, Lenka Lisá, Jan Fišer, Tziona Ben‐Gedalya, Daniel Imas, Cynthianne Spiteri, Polina Nikolskaia, Itzick Shai   +10 more
wiley   +1 more source