Results 51 to 60 of about 4,204 (176)
Black tourmaline in pegmatite. [PDF]
, 2019 Elongate grain of black tourmaline (schorl) in feldspar in pegmatite. Same pegmatite as in photo HNB_1818, a few feet to the left (north). Project Name: Bald Mountain, Camdenhttps://digitalmaine.com/mgs_geologic_field_photos/9501/thumbnail ...
Berry, Henry N, IV
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Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.Abstract Predicting the partial melting conditions that generate Li‐rich peraluminous melts is of major economic and societal importance. However, existing models disagree on the optimal conditions (e.g., pressure, temperature, protolith) and, consequently, on targets for exploration.
Nicolas Riel +6 more
wiley +1 more source
Harding Pegmatite mine - south elevation [PDF]
, 1962 Photo taken by Durga Rimal for his PhD thesis in Geology, "Mineralogy of rose muscovite and lepidolite from the Harding pegmatite, Taos County, New Mexico." Caption reads: "South elevation showing zoning of pegmatite. Plate 1.
Rimal, Durga N.
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Major Rock Type: Igneous Formation: Jerai Formation Age: Cambrian (540 - 485 million years ago) Origin: Singkir Darat, Yan, Kedah * This rock has been extracted from the Singkir Darat Quarry in Yan, Kedah, known as pegmatite, is a fascinating ...
Jamaludin, Siti Nur Fathiyah +1 more
core +2 more sources
Geosciences, 2022 Experimental studies increasingly often report low-temperature (200–800 °C) and low-pressure (0.05–3 kbar) hydrosilicate fluids with >40 wt.% of SiO2 and >10 wt.% of H2O.
Daniil V. Popov +2 more
doaj +1 more source
Journal of Metamorphic Geology, Volume 44, Issue 6, Page 440-469, July 2026.ABSTRACT Understanding the pressure of emplacement of granitic intrusions is crucial to understanding the exhumation history of plutons and constraining the tectonic setting of magma emplacement. However, P–T and geochronological constraints from exhumed plutons are often characterized by large uncertainties, especially in shallow crustal settings with
Samuele Papeschi +4 more
wiley +1 more source
Pegmatite emplacement and regional deformation: the Variscan Cap de Creus pegmatite field (Eastern Pyrenees) [PDF]
, 2021 International audienceGranitic pegmatites are the products of extreme liquid differentiation that concentrates incompatible elements (rare metals, alkali and fluxes P, B, F, Li, etc) either by low degree of partial melting (‘first-drop’) or by high ...
Serrano, Julien +6 more
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Frontiers in Earth Science, 2022 A net of pegmatite veins crosscut gneiss and dismembered ophiolitic ultramafic rocks are abundant in the Migif-Hafafit culmination area, South Eastern Desert, Egypt. Some of these pegmatites are corundum-bearing.
Farrage M. Khaleal +4 more
doaj +1 more source
Battery Energy, Volume 5, Issue 3, May 2026.A simple, chemical‐free method based on a 5‐min microwave treatment and using only water enables the synthesis of Li/Al layered double hydroxides (LDHs) from waste lithium‐ion batteries. These Li/Al LDHs can then be used for lithium extraction from primary resources, supporting a truly sustainable circular economy for lithium.
A. Mannu +7 more
wiley +1 more source