TY - GEN

T1 - LA-ICP-MS study of sulfide blebs from a gabbroid intrusion in North-Western Mongolia

AU - Cherdantseva, Maria

AU - Vishnevskiy, Andrey

AU - Jugo, Pedro

PY - 2019

Y1 - 2019

N2 - The Devonian Rudniy intrusion located on the Tsagaan-Shuvuut ridge (NW Mongoliaiss) is the only one of the numerous small gabbroid intrusions surrounding the Tuva depression known to contain magmatic sulfide Ni-Cu-PGE mineralization. The sulfide mineralization is confined to a prolonged narrow ultramafic horizon as disseminated blebs, which are zoned and composed of pyrrhotite, pentlandite, chalcopyrite and cubanite. The intrusion is of interest because it is a small body that solidified quickly and therefore the sulfide blebs are interpreted to keep a record of the geochemical behaviour of chalcophile elements from the crystallization of a sulfide melt in a closed system. Using LA-ICP-MS and ICP-MS analyses the concentrations of chalcophile and platinum group elements in the base metal sulfides (BMS) were measured. This allowed us to calculate partition coefficients and mass balances of PGEs in base metal sulfides.

AB - The Devonian Rudniy intrusion located on the Tsagaan-Shuvuut ridge (NW Mongoliaiss) is the only one of the numerous small gabbroid intrusions surrounding the Tuva depression known to contain magmatic sulfide Ni-Cu-PGE mineralization. The sulfide mineralization is confined to a prolonged narrow ultramafic horizon as disseminated blebs, which are zoned and composed of pyrrhotite, pentlandite, chalcopyrite and cubanite. The intrusion is of interest because it is a small body that solidified quickly and therefore the sulfide blebs are interpreted to keep a record of the geochemical behaviour of chalcophile elements from the crystallization of a sulfide melt in a closed system. Using LA-ICP-MS and ICP-MS analyses the concentrations of chalcophile and platinum group elements in the base metal sulfides (BMS) were measured. This allowed us to calculate partition coefficients and mass balances of PGEs in base metal sulfides.

KW - PLATINUM-GROUP-ELEMENTS

KW - LASER-ABLATION

KW - MINERALS

KW - DROPLETS

KW - BEHAVIOR

KW - NORILSK

KW - ORIGIN

UR - https://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=31&SID=C3YPTHto9qPO17R3AGe&page=1&doc=1

M3 - Conference contribution

SP - 601

EP - 604

BT - LIFE WITH ORE DEPOSITS ON EARTH, PROCEEDINGS OF THE 15TH SGA BIENNIAL MEETING, 2019, VOLS 1-4

PB - SOC GEOLOGY APPLIED MINERAL DEPOSITS-SGA

T2 - 15th SGA Biennial Meeting on Life with Ore Deposits on Earth

Y2 - 27 August 2019 through 30 August 2019

ER -