Results 61 to 70 of about 6,902 (265)

Correcting field determination of elemental contents in soils via portable X-ray fluorescence spectrometry

Ciência e Agrotecnologia
Portable X-ray fluorescence (pXRF) spectrometry has been useful worldwide for determining soil elemental content under both field and laboratory conditions.
Thaís Santos Branco Dijair, Fernanda Magno Silva, Anita Fernanda dos Santos Teixeira, Sérgio Henrique Godinho Silva, Luiz Roberto Guimarães Guilherme, Nilton Curi   +5 more
doaj   +1 more source

Provenance Study of Prehistoric Ceramics from Sicily: A Comparative Study between pXRF and XRF

Open Archaeology, 2017
The 1964 archaeological exploration of the Ognina islet near Syracuse, Sicily, has provided evidence suggesting a long-term prehistoric occupation from the Neolithic to the Middle Bronze Age.
Tanasi Davide, Tykot Robert H., Pirone Frederick, McKendry Erin   +3 more
doaj   +1 more source

Analysis by pXRF of Prehistoric Obsidian Artifacts From Several Sites on Ustica (Italy): Long-Distance Open-Water Distribution From Multiple Island Sources During the Neolithic and Bronze Ages

Open Archaeology, 2020
The small island of Ustica was a regular part of the obsidian distribution network in the central Mediterranean, despite its location more than 50 km north of western Sicily.
Tykot Robert H., Martin Franco Foresta
doaj   +1 more source

Integrating geochemical survey, ethnography and organic residue analysis to identify and understand areas of foodstuff processing [PDF]

, 2013
In this paper we explore the integration of science-based and ethnographic approaches that respond to the need to consider ancient economy and subsistence in the Greek world on a landscape level.
Derham, B., Doonan, R., Jones, R.E., Lolos, Y., Sarris, A.   +4 more
core  

Wari Lithic Technology on the Northern Coast of the Andes: Geochemical, 2D Geometric Morphometric, and Technological Analyses of Obsidian Bifaces From San José de Moro

Archaeometry, EarlyView.
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, Luis Jaime Castillo, Jalh Dulanto   +2 more
wiley   +1 more source

Proximal Sensing and Digital Terrain Models Applied to Digital Soil Mapping and Modeling of Brazilian Latosols (Oxisols)

Remote Sensing, 2016
Digital terrain models (DTM) have been used in soil mapping worldwide. When using such models, improved predictions are often attained with the input of extra variables provided by the use of proximal sensors, such as magnetometers and portable X-ray ...
Sérgio Henrique Godinho Silva, Giovana Clarice Poggere, Michele Duarte de Menezes, Geila Santos Carvalho, Luiz Roberto Guimarães Guilherme, Nilton Curi   +5 more
doaj   +1 more source

Expedition 350 summary [PDF]

, 2015
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, and 1.5 km west of ...
and Yang, Y., Andrews, G. D. M., Barker, A. K., Berger, J. L. R., Blum, P., Bongiolo, E. M., Bordiga, M., Busby, C. J., DeBari, S. M., Gill, J. B., Guèrin, G., Hamelin, C., Jia, J., John, E. H., Jonas, A.-S., Jutzeler, M., Kars, M. A. C., Kita, Z. A., Konrad, K., Mahoney, S. H., Martini, M., Miyazaki, T., Musgrave, R. J., Nascimento, D. B., Nichols, A. R. L., Ribeiro, J. M., Sato, T., Schindlbeck, J. C., Schmitt, A. K., Straub, S .M., Tamura, Y., Vautravers, M. J.   +31 more
core   +2 more sources

Portable X-ray fluorescence (pXRF) calibration for analysis of nutrient concentrations and trace element contaminants in fertilisers

PLoS ONE, 2022
With the increasing popularity of local blending of fertilisers, the fertiliser industry faces issues regarding quality control and fertiliser adulteration.
Gifty E. Acquah, J. Hernandez-Allica, Cathy L. Thomas, S. Dunham, E. Towett, L. Drake, K. Shepherd, S. McGrath, S. Haefele   +8 more
semanticscholar   +1 more source

Soil geochemical test data with pXRF

, 2022
This is the soil geochemical test data with pXRF in Central Nuocang.
openaire   +2 more sources

A Multi‐Analytical Approach for the Compositional Characterization and Chronological Discrimination of Benin (Nigeria) Metal Sculptures

Archaeometry, EarlyView.
ABSTRACT This study presents a multi‐analytical archaeometric approach for the compositional characterization and chronological discrimination of Benin metal sculptures in relation to the 1897 Punitive Expedition. The methodology integrates elemental composition (XRF and ICP), stable lead isotope ratios (MC‐ICP‐MS) for alloy system characterization ...
I. Torraba, D. A. Ahumada, H. Bagán, A. Tarancón, S. Eisenhofer, J. F. García   +5 more
wiley   +1 more source