Results 71 to 80 of about 18,565 (272)

Bridging the Late Antique Gap in Northwest Arabia: New Archaeological Evidence on the Occupation of Wādī al‐Qurā (al‐ʿUlā [AlUla], Saudi Arabia) Between the Third and Seventh Centuries CE

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT In 2019, the Dadan Archaeological Project (CNRS/RCU/AFALULA) identified a Late Antique village 1 km south of ancient Dadan in the al‐ʿUlā valley (northwest Saudi Arabia). Three excavation seasons at this site (2021–2023) have uncovered a massive building constructed in the late third or early fourth cent.
Jérôme Rohmer, Abdulrahman Alsuhaibani, Charlène Bouchaud, Elora Chambraud, Vladimir Dabrowski, Hatem Djerbi, Fabien Lesguer, Hervé Monchot, Paul Picavet, Louise Purdue, Bertrand Riba, Shadi Shabo   +11 more
wiley   +1 more source

Multimethod Approach to the Study of Recent Volcanic Ashes from Tengger Volcanic Complex, Eastern Java, Indonesia

Geosciences, 2017
Volcanic ash is a volcanic product with a wide distribution that can be used as a geological marker. In volcanic regions such as Indonesia, the identification of the sources of volcanic ash and tuff layers from different volcanoes or eruptive events is a
Nono Agus Santoso, Satria Bijaksana, Kazuto Kodama, Djoko Santoso, Darharta Dahrin   +4 more
doaj   +1 more source

The use of volcanic ash from the eruption of Mount Kelud in East Java for improving yield of sweet potato grown on a sandy soil [PDF]

Journal of Degraded and Mining Lands Management, 2015
The purpose of this study was to explore the effect of volcanic ash from the eruption of Mount Kelud and compost on the soil properties and production of sweet potato on a sandy soil.
H. Melsandi, S. Prijono
doaj   +1 more source

Chemical and mineralogical studies on volcanic ashes I. Chemical composition of volcanic ashes and their classification [PDF]

Soil Science and Plant Nutrition, 1975
Abstract Air-borne pyroclastic materials originating from various volcanoes were collected in Hokkaido, Tohoku, Kanto, and Kyushu, and were used for a total elemental analysis. It was shown that the silica content of the materials closely correlated with the various contents of Al2O3, Fe2O3+FeO3, Fe3, MgO, CaO, Na2O, TiO2, and MnO, and so serves as ...
Sadao Shoji, Shinsuke Kodayashi, Ichiro Yamada, Jun-ichi Masui   +3 more
openaire   +1 more source

High temperature SO2 chemisorption on model systems. Implications for in-plume processes. [PDF]

, 2010
Volcanic volatile species are scavenged by silicate ash during transition through eruption plumes. Scavenging may form S, F and Cl salts and acids on ash surfaces, though the mechanisms and controlling variables remain poorly understood.
Ayris, Paul Martin
core  

Bilateral Supracondylar Process in a Subadult in the Late Antique Age: A Case Report

Archaeometry, EarlyView.
ABSTRACT During the excavation procedures for the railway trait Napoli‐Cancello, in the city of Afragola (Naples), several burials dating back to the Late Antique Age were found. One of them was an amphora burial (enchytrismòs) and contained the skeletal remains of a subadult individual affected by bilateral supracondylar process. Supracondylar process
Barbara Albanese, Daniele Maria Gibelli, Sergio Cascella, Cristina Cattaneo   +3 more
wiley   +1 more source

Fragility Assessment of Vinyl Greenhouses and Livestock Sheds Subjected to Volcanic Ash Fall Hazards

Journal of Asian Architecture and Building Engineering, 2018
In this study, fragility functions are developed to estimate expected volcanic ash damage to vinyl greenhouses and livestock sheds among common agricultural facilities in South Korea.
Hee Jung Ham, Seung Hun Choi, Wooseok Yun, Sungsu Lee, Ho-Jeong Kim   +4 more
doaj   +1 more source

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

Annex to: Volcanic Ash Cloud Observation using Ground-based Ka-band Radar and Near-Infrared Lidar Ceilometer during the Eyjafjallajökull eruption

Annals of Geophysics, 2015
Volcanic ash plumes are formed during explosive volcanic eruptions. After advection over several thousands of kilometers, volcanic ash particles are highly fragmented, dispersed and aged with micron- sized sorting.
Frank S. Marzano, Luigi Mereu, Mario Montopoli, Domenico Cimini, Giovanni Martucci   +4 more
doaj   +1 more source

Data assimilation for volcanic ash plumes using a satellite observational operator: a case study on the 2010 Eyjafjallajökull volcanic eruption [PDF]

Atmospheric Chemistry and Physics, 2017
Using data assimilation (DA) to improve model forecast accuracy is a powerful approach that requires available observations. Infrared satellite measurements of volcanic ash mass loadings are often used as input observations for the assimilation scheme ...
G. Fu, F. Prata, H. X. Lin, A. Heemink, A. Segers, S. Lu   +5 more
doaj   +1 more source