نتایج جستجو برای: tourmaline

تعداد نتایج: 413  

Journal: :Brazilian Journal of Geology 2022

The mineral chemistry of diamond indicator minerals is used to trace mineralizations in primary rocks such as lamproites/kimberlites and secondary deposits. Subcalcic garnets magnesian ilmenites are both associated with the potential described many deposits Alto Paranaíba Igneous Province where several kimberlitic pipes alluvial occur. Our study was conducted on Romaria deposit (Brazil), garnet...

Journal: : 2023

In order to consistently highlight the distribution and forms of finding lithium in subsoil Ukraine, its geochemistry mineralogy, genetic types deposits ore occurrences, mineralogical criteria methods their search evaluation, authors have planned a series articles. The first part quantitatively qualitatively analyzed Li occurrence existing prospective objects — Volyn deposit, Perzhansky distric...

2013
Andy Wilde Alex Otto John Jory Colin MacRae Mark Pownceby Nick Wilson Aaron Torpy

New geological, bulk chemical and mineralogical (QEMSCAN and FEG-EPMA) data are presented for albitite-type uranium deposits of the Mount Isa region of Queensland, Australia. Early albitisation of interbedded metabasalt and metasiltstone predated intense deformation along D2 high strain (mylonite) zones. The early sodic alteration paragenetic stage includes albite, riebeckite, aegirine, apatite...

2000
SHAO-YONG JIANG

The Sullivan deposit of British Columbia, Canada represents an ancient submarine hydrothermal system that formed a giant Pb-Zn-Ag massive sulfide deposit. Tourmaline is abundant in the deposit and acts as a good tracer that may reveal the nature of the original hydrothermal fluids and ore-forming processes, due to its refractory characteristics. Concentrations of Zr, Hf, Nb, Ta, U and Th in tou...

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