Results 71 to 80 of about 24,591 (277)

THERMOBAROMETRY OF DEPLETED PERIDOTITES

open access: yesГеодинамика и тектонофизика
An assessment was made of the possibility of using olivine thermobarometry for xenoliths of depleted peridotites from the Udachnaya pipe (Yakutia), represented by 76 megacrystalline dunites and 5 megacrystalline harzburgites.
L. N. Pokhilenko   +2 more
doaj   +1 more source

Olivine versus peridotite during serpentinization: Gas formation

open access: yes, 2015
The dependence of starting materials and their initial grain sizes on the formation of gases (H-2, CH4, C2H6 and C3H8) during serpentinization was investigated by conducting hydrothermal experiments at 311A degrees C and 3 kbar on olivine and peridotite ...
Sun WeiDong   +4 more
core   +1 more source

Artificial intelligence–driven decoupling structure–activity relationship for lithium‐ion batteries

open access: yesInfoScience, EarlyView.
Artificial intelligence can efferently accelerate the high‐throughput screening of battery materials, the analysis of multiphase mechanisms, and the precise prediction of capacity and cycle life. This review systematically summarizes the applications of machine learning (ML) in decoupling the complex structure‐activity relationships of lithium‐ion ...
Tao Wang   +6 more
wiley   +1 more source

Role of structural defects in olivine cathodes

open access: yes, 2012
The high rate capability and structural stability of the olivine phosphates attracted a lot of interest as promising cathode materials for high energy density batteries.
Kandhasamy, S.   +2 more
core  

Jewelled Byzantine and Medieval Reliquaries of the True Cross: Peridots and Other Gemstones in Material and Symbolic Perspective

open access: yesJournal of Raman Spectroscopy, EarlyView.
An interdisciplinary in situ study of jewelled reliquaries of the True Cross integrates gemmology and portable analytical techniques, revealing new evidence on the identification and symbolic role of peridots and other gemstones. ABSTRACT Jewelled crosses containing relics of the True Cross occupy a central position in the devotional, artistic and ...
Stefania Martiniello   +2 more
wiley   +1 more source

Severe Strain‐Induced Olivine‐Ringwoodite Transformation at Room Temperature: Key to Enigmas of Deep‐Focus Earthquake

open access: yesGeophysical Research Letters
Deep‐focus earthquakes at 350–660 km are presumably caused by olivine‐spinel phase transformation (PT). This cannot, however, explain the observed high seismic strain rate, which requires PT to complete within seconds, while metastable olivine does not ...
F. Lin   +4 more
doaj   +1 more source

Unusual inclusions within olivine megacrysts in the Dar al Gani 735 shergottite

open access: yes, 2005
P(論文)Unusual inclusions occur within olivine megacrysts in the DaG735 olivine-phyric shergottite. They consist of pyroxene and chromite in a ratio of about 2:1, and show strange textures.
Ikeda, Yukio
core   +1 more source

Anisotropy of magnetic susceptibility in natural olivine single crystals [PDF]

open access: yes, 2014
Mantle flow dynamics can cause preferential alignment of olivine crystals that results in anisotropy of physical properties. To interpret anisotropy in mantle rocks, it is necessary to understand the anisotropy of olivine single crystals.
Biedermann, Andrea Regina   +7 more
core   +1 more source

The Age and Origin of Block Deposits in the Victorian Alps, Australia

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT Large periglacial block deposits are found in the mountains of southeastern Australia. Despite their widespread distribution, their mode of formation and age are poorly understood. These landforms hold considerable potential to shed light on the nature of cooling during glacial periods. In this paper we present a new study of block deposits in
Timothy T. Barrows   +4 more
wiley   +1 more source

Mechanochemical Transformation From Zigzag‐Type Layered/Phenakite to Disordered Rocksalt in Mn‐Rich Cathodes for Li‐Ion Batteries

open access: yesSmall, EarlyView.
Mechanochemical activation drives the transformation of a Mo/F‐modified layered/phenakite precursor into a Mn‐rich disordered rocksalt phase. The resulting disordered rocksalt structure improves cation mobility and structural reversibility during cycling, enabling higher reversible capacity and enhanced electrochemical performance.
Yi‐Chen Wu   +7 more
wiley   +1 more source

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