Results 81 to 90 of about 57,562 (273)
Managing and visualising geochemical data for tephra correlation with the IntChron Integration Tool
Journal of Quaternary Science, EarlyView.ABSTRACT There is now a wealth of glass‐shard geochemical data for volcanic ash (tephra) layers from a wide range of volcanoes and eruptions, providing invaluable datasets for tephrochronology. However, compilation of published data to assess tephra correlations leads to large files and requires careful management.
Victoria C. Smith +5 more
wiley +1 more source
The seismic response to Faroe basalts from integrated borehole and wide-angle seismic data [PDF]
We study the seismic response of layered basalts in the Faroe Islands using borehole data and vertical seismic profiles from the Vestmanna borehole, combined with reflection and wideangle seismic data recorded into arrays of both borehole and land ...
Worthington, M. H. +4 more
core
Journal of Quaternary Science, EarlyView.ABSTRACT Volcanic ash (tephra) provides an important chronostratigraphic framework for correlating Quaternary records. In ultra‐distal ( > $\gt $1500 km) settings such as ice cores and marine sediments, deposits are typically preserved as cryptotephra composed of glass shards ≤ 20 μ $\le 20\,\mu
Celeste Smith +6 more
wiley +1 more source
Frontiers in Microbiology, 2013 The East Lau Spreading Center (ELSC) and Valu Fa Ridge (VFR) comprise a ridge segment in the southwest Pacific Ocean where rapid transitions in the underlying mantle chemistry manifest themselves as gradients in seafloor rock geochemistry.
Jason B Sylvan +7 more
doaj +1 more source
Investigation on the Influence of Basalt Short Fiber on Thermo-Physical Properties of Aluminium Metal Matrix Composites. [PDF]
, 2013 The objective of this research work was to investigate on the influence of basalt fiber on the microstructure and thermo-physical properties of Al /basalt short fiber metal matrix composites (MMCs).
Ezhil Vannan, S., Paul Vizhian, S.
core
Experimental study on durability of basalt fiber concrete after elevated temperature
, 2021 The durability of concrete material after exposure to elevated temperatures is important for the serviceability prediction of concrete structures in a fire disaster scenario.
Lu, Limin +11 more
core +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT In this study, we report the first documented occurrence of the Icelandic Vedde Ash (VA) in the Bohemian Forest, identified within palaeolake sediments from Stará Jímka, Czechia, representing the first Icelandic tephra layer identified in Czechia.
Verena Meier +3 more
wiley +1 more source
Frontiers in Earth Science, 2019 Our current knowledge of the genesis, ascent, storage, and eruption of mafic magmas is intimately linked with olivine, its primary crystal cargo. Recent claims that phenocryst-size crystals can grow rapidly and non-concentrically are challenging our ...
Adrien J. Mourey, Thomas Shea
doaj +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT Glacial/interglacial climate cycles since marine isotope stage (MIS) 12 influenced the discontinuous and 73 m‐long sediment record from the volcanic crater of Rodderberg in the East Eifel Volcanic Field, Germany. High‐resolution grain size and geochemical data have been valued by numerical dating techniques (radiocarbon and luminescence dating,
Bernd Zolitschka +4 more
wiley +1 more source
Basalt Fiber Technology: From Raw Materials to Engineering Applications-A Review
Natural Product CommunicationsBasalt fiber, produced from naturally occurring basalt rock, has emerged as a sustainable and cost-effective reinforcement material due to its high mechanical strength, chemical stability, thermal resistance, and electrical insulation properties.
Girma Moges, Melese Asres
doaj +1 more source