Results 131 to 140 of about 405,811 (188)

Behavior of volcanic ash-soil mixtures under one-dimensional compression testing. [PDF]

Sci Rep, 2022
Sayyah MA, Abrishami S, Dastpak P, Dias D.   +3 more
europepmc   +1 more source

A Machine Learning Framework for Retrieving Atmospheric Composition and the Associated Averaging Kernels From a Geostationary Hyperspectral Infrared Sounder

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Geostationary hyperspectral infrared sounders provide hourly observations of the atmospheric composition. However, the conventional optimal estimation method (OEM)‐based retrieval algorithm requires computationally expensive radiative transfer calculations and inverse modeling, making it difficult to monitor in real time. This study presents a
Sirui Wu, Jiancong Hua, Runyi Zhou, Mengya Sheng, Zhao‐Cheng Zeng   +4 more
wiley   +1 more source

Study on Triaxial Properties of Calcareous Sand Modified with Volcanic Ash Cement and Graphene Oxide. [PDF]

Materials (Basel)
Hu J, Sun Z, Xu C, Li Z, Zhan Y, Li Y, Zhang S, Zhou Y.   +7 more
europepmc   +1 more source

Effect of Processed Volcanic Ash as Active Mineral Addition for Cement Manufacture. [PDF]

Materials (Basel), 2022
Rosales J, Rosales M, Díaz-López JL, Agrela F, Cabrera M.   +4 more
europepmc   +1 more source

The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman

Journal of Petroleum Geology, Volume 49, Issue 4, Page 1179-1194, October 2026.
ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi, Alan P. Heward, Lorraine B. Eglinton, Steve R. Packer, Darrin T. Stead   +4 more
wiley   +1 more source

The 2010 Volcanic Ash Cloud and Its Financial Impact on the European Airline Industry [PDF]

Naturkatastrophe; Vulkan; Luftverunreinigung; Luftfahrtindustrie; Soziale Kosten; Island ...
Mario Mazzocchi, Francesca Hansstein, Maddalena Ragona   +2 more
core  

Iron is an important influence of volcanic ash input on the evolution of deep-sea ecosystems. [PDF]

Microbiol Spectr
Bai S, Wang Z, Guo Y, Xu H, Li J, Peng X.   +5 more
europepmc   +1 more source

Gas Measurements Reveal Fractional Degassing and Water Interaction During a Flank Eruption of Pacaya Volcano (Guatemala)

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract SO2 flux and gas composition were measured during the 2021 flank eruption of Pacaya Volcano (Guatemala). The SO2 flux, measured with Tropomi, gradually rose from ∼2 to ∼30 kg/s over a 5 month period before the eruption. Field UV camera data showed that >95% of the SO2 was emitted from the summit crater.
Robin Campion, Ali Zare, Sébastien Valade, Denis Legrand, Gustavo Chigna, Yves Moussallam   +5 more
wiley   +1 more source

A repository-hosted dataset of volcanic ash particle images and features. [PDF]

Sci Data
Benet D, Costa F, Migadel K, Lee DWJ, D'Oriano C, Pompilio M, Nurfiani D, Rifai H.   +7 more
europepmc   +1 more source

Characterization of a Vision-Based Tool for the Investigation of Geometric Characteristics of Ground-Deposited Volcanic Ash. [PDF]

Sensors (Basel), 2022
Andò B, Baglio S, Castorina S, Campisi A.   +3 more
europepmc   +1 more source