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Papers by Tiberius Popa

Research paper thumbnail of Hydrothermal Alterations and Their Geochemical Implications Revealed by Multivariate Techniques (Factor Analysis) in …

geo.edu.ro

... (FACTOR ANALYSIS) IN ALMAS-STANIJA ORE FIELD (SOUTHERN APUSENI MOUNTAINS, ROMANIA) Tiberius P... more ... (FACTOR ANALYSIS) IN ALMAS-STANIJA ORE FIELD (SOUTHERN APUSENI MOUNTAINS, ROMANIA) Tiberius POPA, Silvia POPA SC Prospectiuni SA, str. Caransabes 1, Sector 1, 012271-Bucuresti-32 Romania E-mail: tibipopa@k.ro ...

Research paper thumbnail of PRELIMINARY DATA ABOUT THE CHEMICAL COMPOSITION OF ALLUVIAL GOLD FROM PIANU VALLEY (SEBEŞ MOUNTAINS, SOUTHERN …

acad.ro

This paper shows the first geochemical data about the alluvial gold grains of Pianu Valley (north... more This paper shows the first geochemical data about the alluvial gold grains of Pianu Valley (northern slope of Sebeş Mts., Southern Carpathians), realized by means of electron microscopy (SEM, EDS) and chemical (ICP-MS) methodologies. The EDS microanalyses provide information about the chemical composition of the associated minerals sporadically present on the gold grain surface, mainly represented by quartz, feldspars and goethite. The chemical analyses provide (1) the gold and silver contents from two selected populations of gold particles with different grain size, (2) the estimation of their gold fineness (G.F.) (ranging between 961 and 969) and (3) the composition of the mineral associations in the gold grains.

Research paper thumbnail of HYDROTHERMAL ALTERATIONS AND THEIR GEOCHEMICAL IMPLICATIONS REVEALED BY MULTIVARIATE TECHNIQUES (FACTOR ANALYSIS) IN …

... (FACTOR ANALYSIS) IN ALMAS-STANIJA ORE FIELD (SOUTHERN APUSENI MOUNTAINS, ROMANIA) Tiberius P... more ... (FACTOR ANALYSIS) IN ALMAS-STANIJA ORE FIELD (SOUTHERN APUSENI MOUNTAINS, ROMANIA) Tiberius POPA, Silvia POPA SC Prospectiuni SA, str. Caransabes 1, Sector 1, 012271-Bucuresti-32 Romania E-mail: tibipopa@k.ro ...

Research paper thumbnail of Hydrothermal Alterations and Their Geochemical Implications Revealed by Multivariate Techniques (Factor Analysis) in …

geo.edu.ro

... (FACTOR ANALYSIS) IN ALMAS-STANIJA ORE FIELD (SOUTHERN APUSENI MOUNTAINS, ROMANIA) Tiberius P... more ... (FACTOR ANALYSIS) IN ALMAS-STANIJA ORE FIELD (SOUTHERN APUSENI MOUNTAINS, ROMANIA) Tiberius POPA, Silvia POPA SC Prospectiuni SA, str. Caransabes 1, Sector 1, 012271-Bucuresti-32 Romania E-mail: tibipopa@k.ro ...

Research paper thumbnail of PRELIMINARY DATA ABOUT THE CHEMICAL COMPOSITION OF ALLUVIAL GOLD FROM PIANU VALLEY (SEBEŞ MOUNTAINS, SOUTHERN …

acad.ro

This paper shows the first geochemical data about the alluvial gold grains of Pianu Valley (north... more This paper shows the first geochemical data about the alluvial gold grains of Pianu Valley (northern slope of Sebeş Mts., Southern Carpathians), realized by means of electron microscopy (SEM, EDS) and chemical (ICP-MS) methodologies. The EDS microanalyses provide information about the chemical composition of the associated minerals sporadically present on the gold grain surface, mainly represented by quartz, feldspars and goethite. The chemical analyses provide (1) the gold and silver contents from two selected populations of gold particles with different grain size, (2) the estimation of their gold fineness (G.F.) (ranging between 961 and 969) and (3) the composition of the mineral associations in the gold grains.

Research paper thumbnail of HYDROTHERMAL ALTERATIONS AND THEIR GEOCHEMICAL IMPLICATIONS REVEALED BY MULTIVARIATE TECHNIQUES (FACTOR ANALYSIS) IN …

... (FACTOR ANALYSIS) IN ALMAS-STANIJA ORE FIELD (SOUTHERN APUSENI MOUNTAINS, ROMANIA) Tiberius P... more ... (FACTOR ANALYSIS) IN ALMAS-STANIJA ORE FIELD (SOUTHERN APUSENI MOUNTAINS, ROMANIA) Tiberius POPA, Silvia POPA SC Prospectiuni SA, str. Caransabes 1, Sector 1, 012271-Bucuresti-32 Romania E-mail: tibipopa@k.ro ...

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