Results 111 to 120 of about 31,485 (279)

Diagenetic controls on porosity evolution and pore type organisation in microporous carbonate rocks: Evidence for mesogenetic porosity formation

Sedimentology, EarlyView.
ABSTRACT Microporous carbonate rocks typically record complex diagenetic histories driven by microbial activity and fluid interactions within multiple diagenetic environments. The relative roles of meteoric and burial diagenetic processes in pore evolution remain debated, particularly within Cretaceous carbonate systems of the Middle East, as does the ...
Hugues Bitault, Cathy Hollis, Alain Tonetto, Pierre Deschamps, Philippe Léonide, François Fournier   +5 more
wiley   +1 more source

Leaching of pyrite in cupric chloride solution

E3S Web of Conferences, 2016
Pyrite (FeS2) is the most abundant sulphide mineral in the world and may contain significant amounts of gold locked in its structure. Traditionally, pyrite has to be oxidized in order to break down the mineral matrix for better gold liberation by e.g ...
Elomaa Heini, Lundström Mari
doaj   +1 more source

Porosity Preservation in Deeply Buried (8500 m) Jurassic Calcareous Mudstones of the Vienna Basin (Austria)

Terra Nova, EarlyView.
ABSTRACT Significant porosity of more than 5% was found at depths of more than 8500 m in poorly sorted, calcareous mudstones of the Malmian Mikulov Formation. These overpressured rocks are the main hydrocarbon source rock in the Vienna Basin. Core samples from present‐day depths of 8150 m to 8550 m were analysed using X‐ray diffraction and scanning ...
Susanne Gier, Jürgen Schieber, Andrea Forstner‐Schicker, Peter Krois   +3 more
wiley   +1 more source

ZONATION OF FORM AND COMPOSITION OF PYRITE CRYSTALS OF THE BEREZOVSKY GOLD DEPOSIT (URALS) [PDF]

Минералогия, 2018
Morphology, zonation and composition of pyrite crystals from quartz veins, beresites and listvenites of the Berezovsky gold deposit are examined. During the crystallization, the pyrite forms changed following a relatively simple scheme {111} → {111}+{100}
V.I. Popova, D.A. Artemyev, V.A. Kotlyarov   +2 more
doaj  

Microtopochemistry of pyrite nodules of siliceous siltstones from the Yubileinoe massive sulfide deposit (the Southеrn Urals): LA-IСP-MS data

Литосфера, 2018
Object . The zonal pyrite nodules and metacrystals from siliceous siltstones of ore-bearing horizon of the Second ore body from the Yubileynoe massive sulfide deposit are studied. Materials and methods .
Alexander S. Tseluyko, Valery V. Maslennikov, Dmitry A. Artem’Yev   +2 more
doaj   +1 more source

ON THE ESTIMATION OF SULPHUR IN PYRITES. [PDF]

Journal of the American Chemical Society, 1896
n ...
openaire   +1 more source

Modes of sapropel formation in the eastern Mediterranean: some constraints based on pyrite properties [PDF]

, 1999
Pyrite formation within and directly below sapropels in the eastern Mediterranean was governed by the relative rates of sulphide production and Fe liberation and supply to the organic-rich layers.
Middelburg, J.J., Böttcher, Michael Ernst, Passier, Hilde F, Passier, H.F., Jack J Middelburg (6975785), de Lange, Gert J, Middelburg, Jack J, Michael E Böttcher (6958676), Jack J. Middelburg, De Lange, G.J., Gert J. de Lange, Bottcher, M.E., Hilde F Passier (6975782), Hilde F. Passier, Gert Jan de Lange (6969839), Michael E. Böttcher   +15 more
core   +1 more source

Living in the Mycelial World

Topics in Cognitive Science, EarlyView.
Abstract This manuscript documents a systematic ethnomycological analysis of ethnographic archives. Focusing on texts describing human–fungi interactions, I conduct a global, cross‐cultural review of mushroom use, covering 193 societies worldwide. The study reveals diverse mushroom‐related cultural practices, emphasizing the significance of fungi ...
Roope O. Kaaronen
wiley   +1 more source

New insights into pyrite in the Western Mecsek uranium ore deposit: its morphology, invisible gold and trace element composition

Bulletin of the Mineral Research and Exploration
This study presents the occurrence of invisible gold and associated trace elements in pyrite from the Late Permian Kővágószőlős Sandstone Formation within the Western Mecsek uranium ore deposit, Hungary. Eight pyrite-rich drill-core samples were analyzed
Medet Junussov, Rustem Abirov, Gulnur Mekenbek, Aizada Assambayeva, Nessipzhan Mukhamediyarova   +4 more
doaj   +1 more source

GOLDEN PYRITES FROM THE IBERIAN PYRITE BELT [PDF]

Goldschmidt2021 abstracts, 2021
Lola Yesares Ortiz, Rubén Piña, Jose María González-Jiménez, Sáez Ramos Reinaldo, Gabriel Ruiz de Almodovar, Joaquín Proenza, Juan Manuel Pons   +6 more
openaire   +1 more source