Results 51 to 60 of about 148,265 (366)

Evaluation of surface characteristics and natural radioactivity of mineral-based glaze according to zircon substitution

open access: yesJournal of Asian Ceramic Societies
Zircon (ZrSiO4) is widely utilized as an opacifying agent in the glazes of sanitary-ware and ceramic tile. Zircon is dispersed in the glassy phase during the manufacture process of glaze, contributing a high refractive index and enhanced mechanical ...
Kyu-Sung Han   +6 more
doaj   +1 more source

Effects and mechanism of different grinding media on the flotation behaviors of typical silicate minerals

open access: yes工程科学学报, 2016
The flotation behavior of typical silicates was studied at wet grinding conditions with different grinding media (iron ball and zircon ball) when dodecylamine or sodium oleate was chosen as a collector.
HU Zhen-feng, SUN Chuan-yao
doaj   +1 more source

Nature and timing of Late Mississippian to Mid-Pennsylvanian glacio-eustatic sea-level changes of the Pennine Basin, UK [PDF]

open access: yes, 2012
The Pennine Basin of northern England contains a comparatively complete Serpukhovian– Moscovian succession characterized by high-resolution ammonoid zonation and cyclic paralic sedimentation.
Condon, Daniel J., Waters, Colin N.
core   +2 more sources

Isobar-free neon isotope measurements of flux-fused potential reference minerals on a Helix-MC-Plus^(10K) mass spectrometer [PDF]

open access: yes, 2020
This work presents new analytical techniques for extraction and analysis of neon from a suite of different mineral phases, including quartz, pyroxene, hematite, apatite, zircon, topaz, and fluorite.
Farley, K. A.   +2 more
core   +1 more source

Paleomagnetism indicates that primary magnetite in zircon records a strong Hadean geodynamo

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2020
Significance The age and early history of Earth’s geomagnetic field can provide insight into the evolution of the core and atmosphere. But measurement of Hadean zircons—the oldest known terrestrial materials—and the determination of the antiquity of ...
J. Tarduno   +13 more
semanticscholar   +1 more source

Copper and Iron‐Based Metal‐Organic Frameworks for Synergistic Cancer Phototherapies: Recent Advances, Challenges, and Future Prospects

open access: yesAdvanced Therapeutics, EarlyView.
The graphical abstract illustrates the combined effect of PTT and PDT using metal‐organic frameworks (MOFs) in a cancer treatment model. Tumor‐bearing mice are irradiated with different laser lights, which activate the MOF nanoparticles within cancer cells. The MOFs produce reactive oxygen species through PDT, while PTT elevates the temperature to kill
Kayalvizhi Samuvel Muthiah   +5 more
wiley   +1 more source

Sr-Nd isotopic characteristic, U-Pb zircon geochronology, and petrogenesis of Najmabad Granodiorite batholith, Eastern Iran

open access: yesJournal of Economic Geology, 2012
The study area is located south of Ghonabad in Eastern Iran. This area is situated between two major faults, Darouneh to the north and Dashtbyaz to the south. The movements of these faults cased major dislocation of this block.
Mehrab Moradi Noghondar   +3 more
doaj   +1 more source

Geochronology of the Suomenniemi rapakivi granite complex revisited: Implications of point-specific errors on zircon U-Pb and refined λ87 on whole-rock Rb-Sr [PDF]

open access: yesBulletin of the Geological Society of Finland, 2015
Multi-grain isotope dilution and secondary ion microprobe zircon U-Pb as well as wholerock Rb-Sr isotope dilution data on the late Paleoproterozoic Suomenniemi rapakivi granite complex (exposed on the northern flank of the Wiborg batholith in ...
O.T. Rämö, I. Mänttäri
doaj   +1 more source

Usage of the term provenance in LIS literature: An Annual Review of Information Science and Technology (ARIST) paper

open access: yesJournal of the Association for Information Science and Technology, EarlyView.
Abstract Provenance is the story of how something has come to be. In this paper, we provide a systematic literature review to categorize the various notions of provenance in Information Sciences. The goal of this review is to paint a broader picture of the multiple uses of provenance at play and to enhance our understanding of the importance of ...
Rhiannon Bettivia   +2 more
wiley   +1 more source

Zircon Solubility, Metamict ZrSiO4 Replacement, and Hydrothermal Zircon Formation at Upper Crustal Pressures

open access: yesGeochemistry, Geophysics, Geosystems
Stable and inert under most conditions, zircon can be dissolved and precipitated by aqueous fluids in the upper crust. Geochemical models using currently available thermodynamic properties for Zr aqueous species at 0.2 GPa predict that zircon solubility ...
John C. Ayers, Chen Zhu
doaj   +1 more source

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