Results 151 to 160 of about 381,696 (284)
Boreas, EarlyView.Chemical weathering plays a pivotal role in the Earth's surface material cycle and global climate regulation. It not only facilitates the reconstruction of palaeoclimate characteristics but also provides essential insights into Earth's evolutionary history.
Zhenyu Wei +9 more
wiley +1 more source
Ecological Entomology, EarlyView.Silicon‐mediated resistance in wheat reaches a defensive plateau; accumulating silicon beyond 2mM provides no additional benefit for suppressing insect herbivore relative growth rates. Silicon supplementation significantly increases wheat biomass and effectively ameliorates plant mass losses caused by Helicoverpa armigera herbivory. Lower mandible wear
Marie‐Emma Denarié +4 more
wiley +1 more source
Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology
Geostandards and Geoanalytical Research, EarlyView.Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook +38 more
wiley +1 more source
Afghanite: A New Silicate‐Matrix Reference Material for In Situ Halogen and Sulfur Microanalysis
Geostandards and Geoanalytical Research, EarlyView.Key Points A new silicate matrix reference material for in situ chlorine and sulfur determination. Homogeneous across all measured elements. No matrix effects for Cl when calibrating silicate matrices, in contrast to scapolite, which causes systematic Cl overestimation of up to 13%.
Sebastian Stumpf +7 more
wiley +1 more source
SC‐550: A Sintered Calcite Reference Material for In Situ U‐Pb Geochronology
Geostandards and Geoanalytical Research, EarlyView.Key Points New calcite reference material (SC‐550) produced by high‐temperature and high‐pressure sintering of nano‐particulate powder from a microbial limestone. Homogeneous U content (2.3 ± 0.4 μg g‐1) and U‐Pb isotope ratios (< 0.6% RSD for 207Pb/206Pb; < 3% RSD for 238U/206Pb).
Lorenzo Tavazzani +7 more
wiley +1 more source
Variable redox states of sulfur in porphyry copper-fertile arc magmas. [PDF]
Sci AdvMeng X +5 more
europepmc +1 more source
Composite Grains: Effects of Porosity and Inclusions on the 10µm Silicate Feature
, 2009 We calculate the absorption efficiency of the composite grains, made up of host silicate spheroids and inclusions of ices/graphites/or voids, in the spectral region 7.0− 14.0µm The absorption efficiencies of the composite spheroidal grains for three ...
Deepak B. Vaidya, Ranjan Gupta
core
International Endodontic Journal, EarlyView.ABSTRACT Background Tooth discolouration of endodontic origin (DEO) refers to an undesirable change in tooth colour arising from the pulp space as a result of reactive physiological processes, pathological processes or endodontic procedures and materials. As DEO frequently affects teeth in the aesthetic zone, it may substantially impair self‐esteem and
Gabriel Krastl +7 more
wiley +1 more source
P‐T Uncertainty in Subsolidus Metamorphic Systems: Sources, Patterns and Controls
Journal of Metamorphic Geology, EarlyView.ABSTRACT Phase equilibrium modelling of metamorphic rocks is subject to multiple, superimposed sources of uncertainty that affect pressure–temperature (P$$ P $$‐T$$ T $$) estimates, making it difficult to independently distinguish and evaluate the contribution of each source.
I. P. Cawood, T. Mackay‐Champion
wiley +1 more source
Correlative optical, electron, and electrochemical microscopy assessment of localised sulphide reactivity in concrete aggregates. [PDF]
J MicroscAtiba JO, Peterson K, Ogunsanya IG.
europepmc +1 more source