Results 51 to 60 of about 174,368 (349)

GEOCHEMICAL HETEROGENEITY OF ESTONIAN GRAPTOLITE ARGILLITE; pp. 377–401 [PDF]

open access: yesOil Shale, 2013
This paper describes vertical fine-scale geochemical heterogeneity of Estonian graptolite argillite (GA). GA samples from Pakri and Saka out­crop sections were collected at 20 cm intervals for chemical analysis of major and trace elements, including ...
MARGUS VOOLMA   +4 more
doaj   +1 more source

A Special Rare-earth Mineral —Eudialyte

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of earth science, which mainly reviews the basic characteristics of eudialyte, a rare earth-containing mineral in alkaline rocks.
Wei Chen, Jiayun Zhou
doaj   +1 more source

Eenmaal huisarts…:Afscheidsrede van Prof dr. J.W van Ree [PDF]

open access: yes, 2005
Afscheidscollege van Prof. dr.
van Ree, J.W.
core   +1 more source

The Bayan Obo (China) giant REE accumulation conundrum elucidated by intense magmatic differentiation of carbonatite

open access: yesGeology, 2019
The Bayan Obo deposit in China is endowed with the largest rare earth element (REE) resource in the world. The mechanism resulting in this REE enrichment has been the focus of many studies. Carbonatite is known globally as the most favorable carrier of
Kui-Feng Yang   +3 more
semanticscholar   +1 more source

Occurrence of rare earth element and yttrium (REY) in Tanjung formation coking coal from Sekako area, Central Kalimantan [PDF]

open access: yesE3S Web of Conferences, 2020
Inorganic geochemistry of coal become a point of interest on coal study, especially relating with the occurrence of rare earth element. Tanjung Formation is one of coking coal bearing deposits in Barito Basin, Central Kalimantan.
Amijaya Hendra   +2 more
doaj   +1 more source

Distribution of trace elements controlled by sector and growth zonings in zircon from a miaskite pegmatite of the Vishnegorsky massif, the Southern Urals

open access: yesЗаписки Горного института, 2022
Data on the content and distribution of trace and rare-earth elements (SIMS method) in sectors and growth zones of a large zircon crystal from miaskite pegmatites of the Vishnegogorsky massif are presented.
Ekaterina V. Levashova   +3 more
doaj   +1 more source

REE induced defects in minerals : a spectroscopic study

open access: yes, 2021
This thesis examines the luminescence and mineral physics of Rare Earth Element (REE) bearing minerals as a precursor to developing smart sorting tools for critical metals used in low-carbon technologies.
Horsburgh, Nicola Jane
core   +1 more source

A Lipid‐Conjugation Strategy for Intracellular Reactive Oxygen Species Control in Hepatic Cells

open access: yesAngewandte Chemie, EarlyView.
A lipid conjugation strategy anchors a manganese Salen complex within phospholipid membranes, yielding stable, catalytically active liposomes. These lipid–metal assemblies efficiently degrade reactive oxygen species (ROS) and enable intracellular redox control in steatotic HepaRG cells, offering a precise route to biomimetic antioxidant design ...
Olav Vestrheim   +7 more
wiley   +2 more sources

Geochemical features and formation conditions of the cupriferous sandstones of the Orenburg Pre-Urals

open access: yesЛитосфера, 2018
Object. The article describes a new geological and geochemical data for Permian host rocks and copper sandstones (CS) in Orenburg’s Pre-Urals. Methods .
Alexander V. Volkov   +4 more
doaj   +1 more source

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