Results 21 to 30 of about 1,168 (175)

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

Cyanobacterial Mats in Calcite-Precipitating Serpentinite-Hosted Alkaline Springs of the Voltri Massif, Italy

Microorganisms, 2020
(1) Background: Microbial communities in terrestrial, calcifying high-alkaline springs are not well understood. In this study, we investigate the structure and composition of microbial mats in ultrabasic (pH 10–12) serpentinite springs of the Voltri ...
Aysha Kamran, Kathrin Sauter, Andreas Reimer, Theresa Wacker, Joachim Reitner, Michael Hoppert   +5 more
doaj   +1 more source

The Impact of Mineralogical Characteristics on the Physicomechanical Properties of Serpentinite from Prang Ghar, Mohmand District, Pakistan

International Journal of Economic and Environment Geology
The serpentinite samples of the Prang Ghar Mohmand Agency were analysed petrographically and physicomechanically to assess their potential as dimension stone and aggregate material.
M. Naveed Anjum, Tariq Khan, Zahid Rahman, Muhammad Yaseen Khan, M. Irfan Faiz   +4 more
doaj   +1 more source

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

Application of the shrinking core model for dissolution of serpentinite in an acid solution

E3S Web of Conferences, 2016
Serpentinites have the potential to be used as carbo dioxide capture and storage materials. Acid dissolution is the first stage of this process. This study examined how a shrinking core model can be applied to the dissolution of serpentinite in sulphuric
Didyk-Mucha Agnieszka, Pawlowska Agnieszka, Sadowski Zygmunt   +2 more
doaj   +1 more source

Origin of the serpentinites in the Lichi mélange, eastern Taiwan, China: implication from petrology and geochronology

China Geology, 2018
: Lichi mélange, located in the southern coastal range, eastern Taiwan, China, is a typical tectonic mélange of the plate’s boundary zone between the Eurasian Plate and the Philippine Sea Plate.
Long Huang, Wei Geng, Zhi-lei Sun
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

Microbial ecology of serpentinite-hosted ecosystems. [PDF]

ISME J
Abstract Serpentinization, the collective set of geochemical reactions initiated by the hydration of ultramafic rock, has occurred throughout Earth history and is inferred to occur on several planets and moons in our solar system. These reactions generate highly reducing conditions that can drive organic synthesis reactions potentially ...
Colman DR, Templeton AS, Spear JR, Boyd ES.   +3 more
europepmc   +3 more sources

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