Results 51 to 60 of about 684 (154)

Multiparametric Study of the Synthesis of ThSiO₄ under Hydrothermal Conditions

, 2018
A multiparametric study of the hydrothermal synthesis of ThSiO4, thorite, was performed with the aim of determining the most efficient conditions to form single-phase samples. Among the experimental parameters examined, significant effects were found for
Paul Estevenon, Stephanie Szenknect, Philippe Moisy (1839829), Adel Mesbah (1565200), Stephanie Szenknect (1565203), Christophe Poinssot, Philippe Moisy, Eleonore Welcomme (5491502), Adel Mesbah, Nicolas Dacheux, Eleonore Welcomme, Paul Estevenon (5491505), Nicolas Dacheux (1565194), Christophe Poinssot (1565188)   +13 more
core   +1 more source

Characteristics of minerals in Slovenian marbles

Geologija, 2019
Common rock-forming and accessory minerals in marbles from various localities in Slovenia were studied using scanning electron microscopy with energy dispersive spectroscopy (SEM/EDS). Minerals and their chemical composition were identified in order to
Miloš Miler, Tanja Mašera, Nina Zupančič, Simona Jarc   +3 more
doaj   +1 more source

Geochemistry and U–Pb Zircon Geochronology of Granite at the Pilok Sn–W Deposit, Thailand: Implications for Late Triassic Tin Metallogenesis

Resource Geology, Volume 76, Issue 1, January‐December 2026.
Zircon U–Pb dating constrains the Pilok Sn–W granite emplacement at 212–208 Ma, during the Late Triassic post‐collisional extension after the Sibumasu‐Indochina collision. This timing coincides with widespread tin‐bearing granite magmatism throughout Southeast Asia, marking a major regional metallogenic event. ABSTRACT The Pilok Sn–W deposit in western
Mallika Intachai, Ryohei Takahashi, Andrea Agangi, Marlina A. Elburg, Punya Charusiri, Pearlyn Manalo, Hinako Sato, Cendi D. P. Dana, Manuel Nopeia   +8 more
wiley   +1 more source

MINERALOGICAL AND GEOCHEMICAL FEATURES OF THE ORE BEARING STRATA OF THE UGAKHAN DEPOSIT FROM BODAIBO ORE REGION, RUSSIA

Известия Томского политехнического университета: Инжиниринг георесурсов, 2023
The relevance of the study is caused by the interest in the gold deposits located in the Bodaibо ore region. The study of this area is reflected in numerous publications, despite this there is no unified idea of the origin of gold deposits formed in the ...
Elena V. Shepel, Nuriya R. Ayupova
doaj   +1 more source

A new occurrence of pyrophanite from the amphibolite-hosted skarn in Western Kimmeria, Xanthi, Northern Greece

, 2013
A new occurrence of pyrophanite (MnTiO3) in Greece is described from the garnetclinopyroxene- wollastonite exoskarn of western Kimmeria. Hostrock of the pyrophanite- bearing skarn is amphibolite (retrogressed eclogites) of the Nestos suture zone in ...
Voudouris P., Kanellopoulos C., Xinou A., Mavrogonatos K., Lyberopoulos P., Kati M.   +5 more
core   +1 more source

Redistribution of fine gold from hydrothermal sources to sedimentary sinks, Rakaia River, Canterbury, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 68, Issue 2, Page 282-303, June 2025.
ABSTRACT The Rakaia River in the South Island of New Zealand is a unique catchment in which to trace active detrital gold transport, deformation and concentration from near‐coeval orogenic sources. The catchment hosts widespread small late Cenozoic hydrothermal alteration zones, some of which are gold‐bearing, in actively rising and eroding mountain ...
Marshall Palmer, Dave Craw
wiley   +1 more source

Alteration of Granitoids and Uranium Mineralization in the Blatná Suite of the Central Bohemian Plutonic Complex, Czech Republic

, 2020
The Bohemian magmatic complex belongs to granitoid plutons of the Central European Variscides. Hydrothermal uranium mineralization evolved in the small uranium deposits Nahošín and Mečichov is associated with N–S shear zones occurring
Miloš René
core   +1 more source

Timing of Dike and Sill Emplacement in the Inner Aureole of the Alta Stock, Utah Determined by Zircon and Monazite Petrochronology

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract Detailed geochronology from two compositionally distinct generations of dikes and sills intruded into the Alta metamorphic aureole, north‐central Utah, complement previous geochronologic studies from the Alta stock, providing information on the timing of magmatism and the nature of emplacement.
C. J. Beno, M. A. Stearns, J. R. Bowman, J. M. Bartley, D. P. Fernandez, A. R. C. Kylander‐Clark   +5 more
wiley   +1 more source

GGR Handbook of Rock and Mineral Analysis Chapter 2 (Part 1) Analysis of Geological Materials – 1: Sample Preparation Methods

Geostandards and Geoanalytical Research, Volume 49, Issue 1, Page 9-50, March 2025.
Key Points Comprehensive review of dissolution‐decomposition methods based on acid attack and molten salt fusion. Dissolution remains the preferred method for many modern instrumental measurement principles e.g., ICP‐MS, ICP‐AES and TIMS. Comprehensive reviews of flux-free fusion for glasses and production of pressed powder pellets for analysis by EPMA,
Philip Robinson
wiley   +1 more source

Radioanalytical Assessment and Mineral Chemistry Investigations in the Pegmatites of Eastern Desert, Egypt: Implications for Mining and Radiation Protection

Geosciences
This study is carried out to investigate the radiological characteristics and mineralogical controls of natural radioisotopes (238U, 226Ra, 232Th, and 40K) in granitic pegmatites from Abu Zawal Area (AZA) in the Eastern Desert of Egypt.
Mohamed M. Ghoneim, Mohamed Mitwalli, Hanaa A. El-Dokouny, Mai A. El-Lithy, Maher Dawoud, Yue-Yue Liu, Tariq Al-Abdullah, Abdelhalim S. Mahmoud   +7 more
doaj   +1 more source