Results 31 to 40 of about 18,565 (272)

Mechanical and durability performance of sustainable concretes containing conventional and emerging supplementary cementitious materials

Developments in the Built Environment, 2023
This paper presents a comparative study on the mechanical and durability properties of concrete mixtures containing conventional supplementary cementitious materials (SCMs) and emerging alternatives (i.e., volcanic ash, volcanic ash-limestone blend, and ...
Jin-Cheng Liu, Md. Uzzal Hossain, Dongxing Xuan, Hafiz Asad Ali, S. Thomas Ng, Hailong Ye   +5 more
doaj   +1 more source

Strong responses of Southern Ocean phytoplankton communities to volcanic ash

, 2014
Volcanic eruptions have been hypothesized as an iron supply mechanism for phytoplankton blooms; however, little direct evidence of stimulatory responses has been obtained in the field.
Browning, T.J., Moore, C.M., Bouman, H. A., Pyle, DM, Schlosser, C., Woodward, EMS, Henderson, G. M., Pyle, D. M., Browning, TJ, Schlosser, C, Moore, CM, Browning, T. J., Woodward, E. M. S., Bouman, HA, Henderson, GM, Moore, C. M., Henderson, G.M., Mather, T.A., Pyle, D.M., Bouman, H.A., Schlosser, Christian, Woodward, E.M.S., Mather, T. A., Mather, TA   +23 more
core   +1 more source

Volcanic Ash in Southwestern Nebraska [PDF]

Science, 1896
n ...
openaire   +2 more sources

A Multi-Sensor Approach for Volcanic Ash Cloud Retrieval and Eruption Characterization: The 23 November 2013 Etna Lava Fountain

Remote Sensing, 2016
Volcanic activity is observed worldwide with a variety of ground and space-based remote sensing instruments, each with advantages and drawbacks. No single system can give a comprehensive description of eruptive activity, and so, a multi-sensor approach ...
Stefano Corradini, Mario Montopoli, Lorenzo Guerrieri, Matteo Ricci, Simona Scollo, Luca Merucci, Frank S. Marzano, Sergio Pugnaghi, Michele Prestifilippo, Lucy J. Ventress, Roy G. Grainger, Elisa Carboni, Gianfranco Vulpiani, Mauro Coltelli   +13 more
doaj   +1 more source

Vegetational response to tephra deposition and land-use change in Iceland: a modern analogue and multiple working hypothesis approach to tephropalynology [PDF]

, 2004
Evidence is provided from the joint application of tephrochronology and palynology in two Icelandic locations — the island of Papey off the east coast and Seljaland in the south.
Edwards, Kevin J., Dugmore, A. J., Dugmore, Andrew J., Blackford, Jeff J., Edwards, K. J., Blackford, J. J.   +5 more
core   +1 more source

The identification and tracking of volcanic ash using the Meteosat Second Generation (MSG) Spinning Enhanced Visible and Infrared Imager (SEVIRI) [PDF]

Atmospheric Measurement Techniques, 2014
In this paper, we develop an algorithm based on combining spectral, spatial, and temporal thresholds from the geostationary Spinning Enhanced Visible and Infrared Imager (SEVIRI) daytime measurements to identify and track different aerosol types ...
A. R. Naeger, S. A. Christopher
doaj   +1 more source

Differential response of chlorophyll-a concentrations to explosive volcanism in the western South Pacific

Frontiers in Marine Science, 2023
When it is deposited in the ocean, volcanic ash has the potential to release iron and other nutrients into surface water to stimulate ocean productivity. In the western South Pacific Ocean (SPO), one of the most important volcanic ash deposition regions,
Joo-Eun Yoon, David King, Jack Longman, Jack Longman, Shane J. Cronin   +4 more
doaj   +1 more source

AN OVERVIEW OF ACUTE RESPIRATORY INFECTION CASES BEFORE AND AFTER EXPOSURE TO VOLCANIC ASH

Jurnal Berkala Epidemiologi, 2019
Background: Volcanic ash due to volcanic eruptions has an impact on health. Volcanic ash can cause health problems such as irritation and acute respiratory infections (ARI).
Nienda Mustika Wahyuning Tyas, Rachmah Indawati   +1 more
doaj   +1 more source

Distribution Pattern of Volcanic Ash Essential Elements on the Top Layer of Agricultural Land Post Merapi Eruption in Sleman

Indonesian Journal of Chemistry, 2019
Volcanic ash contains essential elements to the soil fertility of agricultural land which is important to be investigated. The aim of this study was to determine the distribution pattern of volcanic ash essential elements as a result of volcanic eruption
Sri Murniasih, Darsono Darsono, Sukirno Sukirno, Saefurrochman Saefurrochman   +3 more
doaj   +1 more source

7000 Years of Aboriginal Mining at Sugarloaf Hill in the Riverland Region of South Australia

Archaeology in Oceania, EarlyView.
ABSTRACT Silcrete and chert are commonly represented in Aboriginal archaeological lithic assemblages across large parts of the southwestern Murray‐Darling Basin (MDB). In South Australia (SA), these materials were sourced from a series of quarries located along the incised course of the Murray River through the upper Riverland region.
Craig Westell, Ian Moffat, Richard Fullagar, Amy Roberts, Justine Kemp, Mike Morley, Marc Fairhead, Simon Hoad, River Murray and Mallee Aboriginal Corporation   +8 more
wiley   +1 more source