Results 61 to 70 of about 238 (148)

An overview of lithium resources, geochemistry, exploration, extraction, processing, and applications with a focus on electric vehicles

Journal of Economic Geology
Today, the demand for critical metals like lithium has enhanced significantly, leading to greater exploration, extraction, and utilize these metals. In this comprehensive review, we discuss the different types of lithium resources, minerals, exploration,
Mohammad Hassan Karimpour, Bahareh Borouzi Niyat   +1 more
doaj   +1 more source

Sassolite Precipitation at the Restless Campi Flegrei Volcano in Italy Points to Hydrothermal Flashing by Deep Boron‐Rich Brines

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract Studying the behavior of dormant volcanoes is a major challenge in volcanology. Here, we conducted a 10‐year survey of hydrothermal mineralization at Campi Flegrei, an active volcano near Naples in Italy, which last erupted in 1538. Our survey revealed a significant output of boric acid at the hydrothermal sulfate discharge area of Pisciarelli,
M. Piochi, A. Mormone, G. Solomita, R. Moretti   +3 more
wiley   +1 more source

Fluid or Melt? Distinguishing Syn‐Deformational Interaction Pathways

Journal of Metamorphic Geology, Volume 43, Issue 8, Page 810-838, October 2025.
ABSTRACT Understanding whether deformation occurred in the presence of aqueous fluid or silicate melt is crucial for interpreting ductile shear zones, impacting their thermal and geochemical evolution, and having rheological consequences. To identify the syn‐deformational fluid type, we investigate contrasting shear zones active during the Alice ...
Hindol Ghatak, Nathan R. Daczko, Sandra Piazolo, Tom Raimondo   +3 more
wiley   +1 more source

Lithological and Structural Mapping of Basement Rock Units in the Ikara North-Central Basement Complex, Nigeria

UMYU Scientifica Journal
The lithological and structural architecture to unravel the compositions and tectonic evolution of the Nigerian Basement Complex has not been fully documented by geoscientists.  As such, this research aimed to investigate the lithological and structural
Nana Fatima Abdulmalik, Isiaka Ibrahim Ahmed   +1 more
doaj   +1 more source

Turbidity in alkali feldspars from granitic pegmatites

, 2013
Alkali feldspars from pegmatite of Brazil and Spain have microscopic to submicroscopic inclusions giving a >turbid> and >clouded> appearance. Inclusions are isotropic, irregular and spatially associated with patch/vein lamellae in network and/Or isolated masses. Inclusions have no detectable lines in XRD and microprobe analyses show strong variability:
Sánchez Muñoz, Luis, Sobrados, Isabel, Menéndez, Esperanza, Rouer, Olivier, Sanz Perucha, Jesús, García-Guinea, Javier   +5 more
openaire   +1 more source

Zircon (Re)crystallization During Metamorphism: Zircon Paragenesis in the Papua New Guinea Coesite Eclogite Revisited

Journal of Metamorphic Geology, Volume 43, Issue 7, Page 663-680, September 2025.
ABSTRACT The youngest known ultrahigh‐pressure (UHP) eclogite from Tumagabuna Island, a small island of the D'Entrecasteaux Islands chain in Papua New Guinea, exhibits zircon U–Pb age variations spanning a few million years. This age variation complicates the interpretation of the evolution of this high and ultrahigh‐pressure ([U]HP) terrane.
Linus B. Streicher, Fraukje M. Brouwer, Keewook Yi, Suzanne L. Baldwin, Wim van Westrenen   +4 more
wiley   +1 more source

Petrochronology of Alkaline Intrusive Magmatism in the Central High‐Atlas (Morocco) and Relationships With Jurassic Salt Diapirism

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 6, June 2025.
Abstract A striking feature of the Imilchil alkaline province, in the Moroccan Central High Atlas, is the close association of magmatic intrusions with Triassic sediments exhumed by diapirism. This study reports field, petrographic, geochemical and Sr‐Nd isotopic data, as well as new U‐Pb zircon ages, which allow us to constrain the timing of the ...
Youssef Ahechach, Muhammad Ouabid, Françoise Roger, Fleurice Parat, Otmane Raji, Jean‐Marie Dautria, Valérie Bosse, Cheikh Elwali Malainine, Hicham El Messbahi, Hamza Skikra, Jean‐Louis Bodinier   +10 more
wiley   +1 more source

Zircon Solubility, Metamict ZrSiO4 Replacement, and Hydrothermal Zircon Formation at Upper Crustal Pressures

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 3, March 2025.
Abstract Stable and inert under most conditions, zircon can be dissolved and precipitated by aqueous fluids in the upper crust. Geochemical models using currently available thermodynamic properties for Zr aqueous species at 0.2 GPa predict that zircon solubility increases with temperature from 400 to 900°C in fluids saturated with quartz or baddeleyite.
John C. Ayers, Chen Zhu
wiley   +1 more source

Rare alkali metals in micas from Shakhdarinskaya miarolitic pegmatite (South-Western Pamir)

Известия Томского политехнического университета: Инжиниринг георесурсов, 2017
The study is focused on the mineralogy of rare-element rich tourmaline-bearing miarolitic pegmatities of the Shakhdarinskaya vein (SW Pamirs, Tajikistan). The results of the study are crucially important for understanding the regularities of distribution and behavior of Li, Rb and Cs in the course of crystallization of the most low-temperature ...
Ekaterina Nikolaevna Sokolova, Sergey Zakharovich Smirnov, Elvira Nurfasovna Kungulova, Vladimir Nikolaevich Korolyuk, Sergey Ivanovich Konovalenko   +4 more
openaire   +2 more sources

Effect of mineralogical variations on physico-mechanical and thermal properties of granitic rocks. [PDF]

Sci Rep, 2023
Lasheen ESR, Rashwan MA, Azer MK.
europepmc   +1 more source