Results 91 to 100 of about 34,282 (303)

Ngarrawa (mound spring) sediments as archives of Holocene environmental change in arid central Australia: Insights from Itrax XRF scanning

Journal of Quaternary Science, EarlyView.
ABSTRACT Central Australia's ngarrawa, or ‘mound springs’, are unique hydrological systems that serve as some of the only near‐permanent sources of water and continuous sediment deposition in Australia's arid interior. As such, they hold significant potential as palaeo‐climate and ‐environmental archives in a region where many aspects of past climate ...
Fletcher C. Nixon, Jonathan J. Tyler, Patricia S. Gadd, Quan Hua   +3 more
wiley   +1 more source

The effect of band-tail states on the thermal stability of the infrared stimulated luminescence from K-feldspar

, 2013
The thermal stability of the infrared stimulated luminescence (IRSL) signal from a sedimentary K-feldspar was investigated using isothermal decay study.
Sheng-Hua Li (2268709), Bo Li (19583689)
core   +1 more source

Caracterização química, espectroscópica e microtextural de feldspatos piroexpansíveis para possível aplicação nas indústrias de cerâmica de revestimento e vidreira

Cerâmica
Resumo Amostras de feldspatos foram submetidas a ensaios tecnológicos de calcinação, possibilitando avaliar as modificações nas propriedades físicas e químicas desses minerais, identificando eventuais problemas tecnológicos e compreendendo as mudanças ...
G. M. Aarão, R. Scholz
doaj   +1 more source

Corrosion of Potential Canister Materials During Oxic to Anoxic Transient in Compacted Bentonite

Materials and Corrosion, EarlyView.
A comprehensive analytical approach was applied to investigate material degradation phenomena of cast iron and copper as potential canister materials for the safe disposal of high‐level radioactive waste, as well as compacted bentonite exposed to artificial water relevant for disposal. ABSTRACT The long‐term performance of the engineered barrier system
Louisa Panjiyar, Martin Ende, Nicolas Finck, Christiane Stephan‐Scherb   +3 more
wiley   +1 more source

Analytical Methodology to Determine Thermally Induced Soil Deformation From Laboratory Data

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Experimental laboratory investigations underlie most of the knowledge about the mechanics of soils under non‐isothermal conditions and their thermally induced deformation. Despite advances, the understanding of thermally induced deformation of soils remains inconsistent, hindering the development of a coherent framework that can advance ...
Jibril B. Coulibaly, Alessandro F. Rotta Loria   +1 more
wiley   +1 more source

b>Energy requirement for firing porcelain

Bulletin of the Chemical Society of Ethiopia, 2004
Results from studies on the ternary system Ribaué kaolin–Carapira feldspar– Marracuene quartz sands were used to test a procedure that we developed for calculation of the energy requirement for firing porcelain.
Carvalho M. de O. Madivate, Agostinho M. Malate, Sabine Verryn, Maggi Loubser   +3 more
doaj  

Investigation of feldspar raw material potential of alkali feldspar granites and alkali feldspar syenites within Central Anatolia

, 2019
Alkali feldspar granites are intrusive rocks and mainly composed of alkali feldspar, quartz and plagioclase. They represent one of the major sources that provide raw materials for glass and ceramics industry because of their high feldspar and quartz ...
KADIOĞLU, Yusuf Kağan, DENİZ, Kıymet
core   +1 more source

An Anisotropic Constitutive Model for Crushable Geomaterials Based on Non‐Stationary Critical State Line Concept

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT In this paper, the dependencies of granular soil behaviour on particle crushing and fabric anisotropy are formulated within a novel model based on bounding surface plasticity theory enriched by the non‐stationary critical state line (NCSL) concept.
Hesam Dejaloud, Hamed Taghavizade, Mohammad Rezania   +2 more
wiley   +1 more source

Particle‐Scale Mechanics of a Regolith‐Type Soil

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The existing studies have reported that the surface of Mars shows the presence of materials having igneous origin, including basalt and regolith‐type coarse soils. These findings are affected by significant uncertainties and, therefore, the selection of simulants for various exploration applications, including surface mobility of rovers ...
Vincenzo Nardelli, Chencheng Wang, Matthew Richard Coop   +2 more
wiley   +1 more source

Luminescence dating of Chinese loess beyond 130 ka using the non-fading signal from K-feldspar

, 2012
A multi-elevated-temperature post-IR IRSL (MET-pIRIR) protocol, which utilizes the IRSL signals measured by progressively increasing the stimulation temperature from 50 to 300 ℃ in a step of 50 ℃, was applied to date the potassium-rich feldspar (K ...
Bo Li (19583689), Shenghua Li (39556)
core   +1 more source