[HTML][HTML] Modes of occurrence of elements in coal: A critical evaluation

S Dai, RB Finkelman, D French, JC Hower… - Earth-Science …, 2021 - Elsevier
Coal, containing all the elements that are present in nature and more than 200 minerals, has
a complex chemical structure, making it one of the most complex geological materials …

Atmospheric CO2 forcing on Mediterranean biomes during the past 500 kyrs

A Koutsodendris, V Dakos, WJ Fletcher… - Nature …, 2023 - nature.com
There is growing concern on the survival of Mediterranean forests under the projected near-
future droughts as a result of anthropogenic climate change. Here we determine the …

Geochemistry of radioactive elements (U, Th) in coal and peat of northern Asia (Siberia, Russian Far East, Kazakhstan, and Mongolia)

SI Arbuzov, AV Volostnov, LP Rikhvanov… - International Journal of …, 2011 - Elsevier
Geochemistry of radioactive elements in more than 5000 coal and peat samples of Northern
Asia has been investigated by quantitative methods, such as the instrumental neutron …

Abundances and modes of occurrence of trace elements in the Çan coals (Miocene), Çanakkale-Turkey

G Gürdal - International Journal of Coal Geology, 2011 - Elsevier
This study presents the concentrations and modes of occurrence of trace elements in 81
coal samples from the Çan basin of northwestern Turkey. The concentration of trace …

The geology, mineralogy, petrography, and geochemistry of the Miocene Dursunbey coal within fluvio-lacustrine deposits, Balıkesir (Western Turkey)

AI Karayigit, C Bircan, RG Oskay, İ Türkmen… - International Journal of …, 2020 - Elsevier
The Dursunbey coalfield, a typical example of coalfields in the western Anatolia, hosts a
mineable coal seam (about 9.0-m coal thickness) with altered tuff layers within early …

Modes of occurrence of rare earth elements in peat from Western Siberia

SI Arbuzov, SG Maslov, RB Finkelman… - Journal of Geochemical …, 2018 - Elsevier
Selective leaching of rare earth elements (REE) from peat samples from Western Siberia
indicates unanticipated modes of r occurrence. It has been determined that from 40 to 80 …

Variations in elemental and mineralogical compositions of Late Oligocene, Early and Middle Miocene coal seams in the Kale-Tavas Molasse sub-basin, SW Turkey

AI Karayigit, M Atalay, RG Oskay, P Córdoba… - International Journal of …, 2020 - Elsevier
Abstract The Kale-Tavas sub-basin, which is the south-western part of the Lycian Molasse
Basin, SW Turkey, hosts several coal seams of Late Oligocene, Early and Middle Miocene …

Coal characteristics, elemental composition and modes of occurrence of some elements in the İsaalan coal (Balıkesir, NW Turkey)

AI Karayiğit, C Bircan, M Mastalerz, RG Oskay… - International Journal of …, 2017 - Elsevier
This study uses coal petrography, micro-FTIR, mineralogical, and geochemical analyses to
determine the coal characteristics and controlling factors of elemental enrichments in the …

Ash deposition in a pulverized coal-fired power plant after high-calcium lignite combustion

JL Fernandez-Turiel, A Georgakopoulos… - Energy & …, 2004 - ACS Publications
The fabric, mineralogy, and chemistry of high-calcium ash deposits from the Agios Dimitrios
pulverized-lignite power plant in northern Greece have been investigated as a key to the …

The trace element distribution in peat soils affected by natural burning events: A proxy of the original composition and metals mobility assessment

C Natali, M Ferrari, A Bragagni, G Bianchini… - Science of the Total …, 2023 - Elsevier
This work evaluates for the first time the effects on the trace element composition of peat
soils affected by natural burning events, a recurrent phenomenon in the reclaimed wetland …