Results 21 to 30 of about 5,023 (118)

Lithium Kolmozero deposit of rare metal pegmatites: New data on rare element composition (Kola Peninsula)

open access: yesЛитосфера, 2018
The article is devoted to studies the rare element composition of albite-spodumene pegmatites of the lithium with associated Be, Nb, Ta Kolmozero deposit.
Lyudmila N. Morozova
doaj   +1 more source

Granitic pegmatites

open access: yes, 1996
:The primary focus of this review is on P-T conditions, mineralogical indicators of melt or fluid composition and textural evolution; lesser treatment is given to pegmatite sources or to pegmatite-wallrock interactions.
David London
core   +1 more source

Assessing pegmatite compositional evolution through analysis of muscovite from historic North Carolina mining districts by handheld laser-induced breakdown spectroscopy (hLIBS)

open access: yesFrontiers in Physics
Mineral exploration provides the commodities society requires, but continuing discovery and development of new critical mineral deposits is necessary to realize a sustainable, low-carbon future.
Russell S. Harmon   +3 more
doaj   +1 more source

Mineralogy and geochemistry of pegmatites in the Larvik Plutonic Complex, Norway

open access: yes, 2019
Peculiar rocks consisting of large and rare minerals are known as nepheline syenite pegmatites and can be found in larvikite (national rock of Norway!) around the Larvik area. Detailed chemical analyses of a mineral called wöhlerite, which is rare on the
Sunde, Øyvind
core   +1 more source

Stage of the vein series formation processes of the Burpala massif (North Baikal), according to chemical microprobe Th-U-Pb dating of monazites

open access: yesGeosystems and Geoenvironment
The typomorphic features and ages of monazites from two zones of ore-bearing pegmatites of the Burpala massif (Western and Britolite) were studied.
Irina Sotnikova   +6 more
doaj   +1 more source

Th-Rich Zircon from a Pegmatite Vein Hosted in the Wiborg Rapakivi Granite Massif

open access: yesGeosciences, 2023
Zircon from a pegmatite vein hosted in the rapakivi granites occurring in the Gubanov Intrusion of the Wiborg Massif was shown by the EPMA method to contain an anomalously high Th of 18.3 wt% ThO2 (about 161,000 ppm Th).
Sergey G. Skublov   +4 more
doaj   +1 more source

Petrogenesis and tectonic-magmatic context of emplacement of lepidolite and petalite pegmatites from the Fregeneda-Almendra field (Variscan Central Iberian Zone): clues from Nb-Ta-Sn oxide U-Pb geochronology and mineral geochemistry

open access: yesBSGF - Earth Sciences Bulletin
The Fregeneda-Almendra pegmatite field of the Iberian Massif represents a typical expression of peraluminous rare-metal magmatism that occurred over western Europe at the end of the Variscan orogeny.
Ballouard Christophe   +9 more
doaj   +1 more source

Geochemical and mineralogical constraints on lithium mineralization in rare-metal pegmatites of the Amareshwar region, Eastern Dharwar Craton, India

open access: yesGeosystems and Geoenvironment
Around 50 percent of global lithium resources are hosted in the rare-metal pegmatites. The present study deals with whole-rock geochemistry as well as zinnwaldite mineral chemistry of rare-metal pegmatites from Amareshwar, Gurugunta schist belt, Eastern ...
C.S. Sindhuja   +3 more
doaj   +1 more source

The Influence of Soil Properties on the Agronomic Efficacy of Rock Dust: A Comparative Analysis of a Semiarid Ultisol and Global Soil Types

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background: Enhanced rock weathering (ERW) using silicate rock dust is a promising strategy for soil remineralization and carbon dioxide removal. However, its agronomic efficacy is highly dependent on soil properties. Aim: This study provides a comprehensive comparative analysis of the influence of soil type on the performance of rock dust ...
Dennis O. Galdino, William De Paiva
wiley   +1 more source

Green Transition, Extractive Continuities: Lithium Mining and the Environmental Contradictions of Sustainability

open access: yesSustainable Development, EarlyView.
ABSTRACT Global decarbonization has positioned lithium as a strategic mineral for electric vehicles, battery storage, and low‐carbon development. Yet its extraction raises serious environmental, political, and justice concerns that complicate dominant narratives of clean energy progress.
Jacob Kwakye
wiley   +1 more source

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