Results 21 to 30 of about 6,060 (205)

Investigation of Magnetic Separation and Thermal Treatment Effects, Combined with Additives (Mineral Oxides), on Serpentinized Peridotites from the Gerakini (Chalkidiki, N. Greece) Magnesite Mine

Materials Proceedings, 2022
Serpentinized peridotite samples—considered nowadays as deposited waste at the magnesite mine of Gerakini (Chalkidiki, N. Greece)—were collected, and their chemical and mineralogical characterization analyzed with Energy-Dispersive X-ray Fluorescence (ED-
Dimitra Papargyriou, Evangelos Tzamos, Andreas Kasinos, Polykarpos Papageorgiou, Manassis Mitrakas, Anastasios Zouboulis   +5 more
doaj   +1 more source

Tracking Subsurface Active Weathering Processes in Serpentinite

Geophysical Research Letters, 2021
We conducted a novel study to capture the on‐going advancement of mineral weathering within a serpentinite formation by using an integrated approach of multi‐scale quantitative rock magnetic analyses and nano‐resolution geochemical imaging analyses.
Masako Tominaga, Estefania Ortiz, Joshua Franz Einsle, Noah Francis Ryoichi Vento, Matthew O Schrenk, Iris Buisman, Isra S. Ezad, Dawn Cardace   +7 more
doaj   +1 more source

A Study on Surface Modification Characteristics and Charge–Discharge Mechanism of Natural Serpentinite Ore Secondary Battery

Inorganics, 2023
This study conducts low-vacuum sulfidation to form a sulfidation layer on the serpentinite-derived magnesium iron silicate, thereby enhancing its electrochemical properties. Results show (Mg,Fe)2SiO4 calcined at 900 °C has the best crystallinity, and the
Jun-Ren Zhao, Kuan-Jen Chen, Fei-Yi Hung, Yung-Yi Tsai, Po-Ting Wu   +4 more
doaj   +1 more source

Geology of Montecastelli Pisano (inner Northern Apennines, Italy): normal and transfer fault zones affecting a dismantled ophiolite bearing orogenic wedge

Journal of Maps, 2023
We present the geological map (1:10.000) of the Montecastelli Pisano area, where (i) the relationships between Neogene-Quaternary transfer and normal faults have been carefully mapped (Sheet 1), and (ii) the mantle sequence of the Ligurian Ocean has been
Andrea Brogi, Domenico Liotta, Andrea Dini, Andrea Rielli   +3 more
doaj   +1 more source

Mineralogical Characteristics and Genesis of Green Nephrite from the World

Yankuang ceshi, 2018
BACKGROUND In previous studies, due to the limited samples with specific origins and limited methods for measurement, the genesis of serpentinite-related green nephrite and its relationship with dolomite-related nephrite were unclear.
LIU Xi-feng, ZHANG Hong-qing, LIU Yan, ZHANG Yong, LI Zi-jing, ZHANG Jin-hong, ZHENG Fen   +6 more
doaj   +1 more source

MINERALOGY AND GEOCHEMISTRY OF CHLORITHOLITES FROM THE NEPRYAKHINO GOLD FIELD, SOUTH URALS [PDF]

Минералогия, 2020
The chlorite rocks (chloritolites) exposed in a bedrock of the Mokhovoe boloto (Moss swamp) gold placer (East Uralian Megazone, South Urals), which occurs on ultramafic rocks, are studied.
V.V. Murzin, D.A. Varlamov
doaj   +1 more source

New Evidence of Serpentinite Raw Material Exploitation in the Kapova Cave (The Southern Urals)

Поволжская археология, 2017
The author considers finds from a rare material – serpentinite – produced in well-known Kapova cave. The Upper Palaeolithic objects from this stone are represented by 4 beads uncovered by V.E.
Zhitenev Vladislav S.
doaj   +1 more source

Hydrated Peridotite–Basaltic Melt Interaction Part II: Fast Assimilation of Serpentinized Mantle by Basaltic Magma

Frontiers in Earth Science, 2020
The most abundant terrestrial lavas, mid-ocean ridge basalt (MORB) and ocean island basalt (OIB), are commonly considered to be derived from a depleted MORB-mantle component (DMM) and more specific, variably enriched mantle plume sources.
Anastassia Y. Borisova, Anastassia Y. Borisova, Nail R. Zagrtdenov, Michael J. Toplis, Georges Ceuleneer, Oleg G. Safonov, Oleg G. Safonov, Oleg G. Safonov, Gleb S. Pokrovski, Klaus Peter Jochum, Brigitte Stoll, Ulrike Weis, Svyatoslav Shcheka, Andrey Y. Bychkov   +13 more
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Serpentinites of Different Tectonic Origin in an Exhumed Subduction Complex (New Caledonia, SW Pacific)

Geochemistry, Geophysics, Geosystems, 2022
Owing to the importance of serpentinites for planetary geochemical and geodynamic processes, there has been much work discerning the origins of their parent rocks, including distinguishing between serpentinites derived from a subducting plate versus ...
Natalie H. Raia, Donna L. Whitney, Christian Teyssier, Stéphane Lesimple   +3 more
doaj   +1 more source

MINERALOGICAL-GEOCHEMICAL FEATURES OF MAGNETITE OCCURRENCES IN SERPENTINITES OF THE KALKAN AREA (MAIN URALIAN FAULT ZONE, SOUTH URALS) [PDF]

Минералогия, 2021
Chemical and mineralogical composition of magnetite occurrences from serpentinites of the Kalkan mélange area of the Main Uralian Fault zone (South Urals) is studied. Abundant Cu minerals including native copper, Cu sulfides (covellite, bornite, minerals
D.E. Saveliev
doaj   +1 more source