Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
GENESIS OF NOBLE METAL MINERALIZATION OF THE KOVDOR ALKALINEULTRAMAFIC MASSIF (KOLA PENINSULA). / SOROKHTINA , NATALIA V. ; PETROV, SERGEY V.; MARTYNOVA, A. A.; KONONKOVA, NATALIA N.; ZAITSEV, VICTOR A. ; ANTONOV, ANTON V.
SOFIA INITIATIVE „MINERAL DIVERSITY PRESERVATION” : X International Symposium "Mineral Diversity: Research and Preservation", 14-16 october 2019. Sofia : EARTH AND MAN NATIONAL MUSEUM, 2020. стр. 125-133 (International Symposium "Mineral Diversity: Research and Preservation").Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
}
TY - GEN
T1 - GENESIS OF NOBLE METAL MINERALIZATION OF THE KOVDOR ALKALINEULTRAMAFIC MASSIF (KOLA PENINSULA)
AU - SOROKHTINA , NATALIA V.
AU - PETROV, SERGEY V.
AU - MARTYNOVA, A. A.
AU - KONONKOVA, NATALIA N.
AU - ZAITSEV, VICTOR A.
AU - ANTONOV, ANTON V.
PY - 2020
Y1 - 2020
N2 - Abstract. The noble-metal mineralization of the Kovdor massif was studied characterized for the sulfide- bearingmagnetite phoscorites and carbonatites of the middle stage formation. Pyrrhotite, bornite, chalcopyrite and pyrite are themost common sulphides and apparently the major sources of noble metals. The temperature of bornite-chalcopyritePGE assemblage is close to 400°С, but the pyrrhothite-chalcopyrite-pyrite with Ag-phases is close to 200°С. MineralsOs, Ru, Pt and Pd are crystallized from sulfide Fe-Ni melt sequentially, the latter platinoids containing Sn, Pb, As, Biand Te are formed when redox conditions change, temperature decreases and cu and Fe activity increases in the melt.Ag phases are formed at the hydrothermal stages during the transformation of Cu-Fe-Ni sulfides. Crystallization ofnoble metal minerals is genetically related to the evolution of alkaline-ultrabasic melt and separation of the primarysulfide melt, enriched with these elements at the carbonatite stage formation of massif.
AB - Abstract. The noble-metal mineralization of the Kovdor massif was studied characterized for the sulfide- bearingmagnetite phoscorites and carbonatites of the middle stage formation. Pyrrhotite, bornite, chalcopyrite and pyrite are themost common sulphides and apparently the major sources of noble metals. The temperature of bornite-chalcopyritePGE assemblage is close to 400°С, but the pyrrhothite-chalcopyrite-pyrite with Ag-phases is close to 200°С. MineralsOs, Ru, Pt and Pd are crystallized from sulfide Fe-Ni melt sequentially, the latter platinoids containing Sn, Pb, As, Biand Te are formed when redox conditions change, temperature decreases and cu and Fe activity increases in the melt.Ag phases are formed at the hydrothermal stages during the transformation of Cu-Fe-Ni sulfides. Crystallization ofnoble metal minerals is genetically related to the evolution of alkaline-ultrabasic melt and separation of the primarysulfide melt, enriched with these elements at the carbonatite stage formation of massif.
M3 - Conference contribution
T3 - International Symposium "Mineral Diversity: Research and Preservation"
SP - 125
EP - 133
BT - SOFIA INITIATIVE „MINERAL DIVERSITY PRESERVATION”
PB - EARTH AND MAN NATIONAL MUSEUM
CY - Sofia
T2 - X International Symposium "Mineral Diversity: Research and Preservation"
Y2 - 14 October 2019 through 16 October 2019
ER -
ID: 52985169