Results 121 to 130 of about 6,902 (265)

Obsidian finds from the Early Neolithic site at Grumăzeşti – Deleni, Neamţ County

Materiale și Cercetări Arheologice, 2018
The site of Grumăzești – Deleni (Neamț County) was excavated by Silvia Marinescu‐ Bîlcu during the late 1960s and 1970s. The excavations unearthed the remains of an Early Neolithic (Starčevo‐ Criș) settlement, as well as traces of occupation during the ...
Boroneanț, A., Diaconu, V., Bonsall, C.
doaj   +1 more source

PXRF Determination of the Obsidian Industry from the S–F Area of Piani della Corona EBA Settlement (Bagnara Calabra–RC, South Italy)

Open Archaeology, 2017
Archaeological excavations in the S-F area of Piani della Corona settlement have affected a portion of 2200 m2 of a large plateau (490 m asl). The researches, conducted between 2007 and 2008 by the Superintendence of the Museo Preistorico Etnografico “L.
Marino Sara, Natali Elena, Tykot Robert H., Vianello Andrea   +3 more
doaj   +1 more source

The Biderbost site: exploring migration and trade on the social landscape of the Pacific Northwest [PDF]

, 2016
The Biderbost site of Duvall, Washington presents an interesting archaeological case for investigating trade and migration. The extensive lithic remains contain several stylistic traits of regional groups, but incomplete excavation records hinder most ...
Gallagher, Anna
core  

A Compositional Study (pXRF) of Early Holocene Obsidian Assemblages from Cyprus, Eastern Mediterranean

Open Archaeology, 2019
This paper presents the results of the geochemical characterisation of complete obsidian assemblages dating to the Early Aceramic Neolithic (8200–6900 Cal BC) and located in Cyprus, eastern Mediterranean.
Moutsiou Theodora
doaj   +1 more source

Dating Iron Age goldwork: First direct AMS 14C results from Northwestern Iberia [PDF]

, 2015
This article presents the first direct radiocarbon dates for NW Iberian “Castro culture” goldwork. Three samples were taken from a melting mass and a plano-convex ingot from the so-called Recouso (Oroso, A Coruña) and Calvos de Randín (Ourense ...
Armada, XL, García-Vuelta, O
core  

Soil salinity hazard monitoring with portable X-ray fluorescence spectrometry and electrical conductivity meters

Frontiers in Soil Science
Soil salinization is a major form of land degradation that diminishes soil fertility and health, thereby severely impacting the economic development and livelihood improvement of agrarian countries worldwide.
Tarik El Moatassem, Ayoub Lazaar, Fassil Kebede   +2 more
doaj   +1 more source

Portable XRF and Vis-NIR spectrometry for predicting chemical properties of forest soils in the Amazon: Insights into sensor data dimensionality reduction

Soil Advances
Proximal sensor data integrated with machine learning algorithms have been successful in assessing soil chemical parameters. The accuracy of these sensors for assessing soil parameters in tropical forest soils is still limited.
Quésia Sá Pavão, Paula Godinho Ribeiro, Gutierre Pereira Maciel, Sérgio Henrique Godinho Silva, Suzana Romeiro Araújo, Antonio Rodrigues Fernandes, José Alexandre Melo Demattê, Pedro Walfir Martins e Souza Filho, Silvio Junio Ramos   +8 more
doaj   +1 more source

Portable X-ray fluorescence (pXRF) applications in tropical Soil Science

Ciência e Agrotecnologia
The X-ray fluorescence (XRF) is an analytical technique for determination of elemental composition of different materials. In soils, the XRF has many pedological, environmental and agronomic applications, mainly after the emergence of portable equipments
Bruno Teixeira Ribeiro, Sérgio Henrique Godinho Silva, Elen Alvarenga Silva, Luiz Roberto Guimarães Guilherme   +3 more
doaj   +1 more source

Improving soil organic matter estimation accuracy by combining optimal spectral preprocessing and feature selection methods based on pXRF and vis-NIR data fusion

Geoderma, 2023
Xiaoyan Shi, Jianghui Song, Haijiang Wang, X. Lv, Yongqi Zhu, Wenxu Zhang, Wenqi Bu, Lingyun Zeng   +7 more
semanticscholar   +1 more source

pXRF study of pottery : State of the art and perspectives

, 2019
Although portable/handheld X-ray Fluorescence instruments are available from decades, the number of publications reporting on-site analyses of pottery remain very limited. Most of them present the paste composition and not the (glazed) décor. After a brief review of the published works about the studies of pottery and glass, we will discuss the ...
Colomban, Philippe, Simsek, Gulsu
openaire   +1 more source