Open AccessFirst Re-Os age dating of molybdenite from Babyak Mo-Ag-Au-W-Bi-base metal deposit: evidence for Early Eocene fertile magmatic-hydrothermal system in Western Rhodopes, Bulgaria
Author(s) -
Milen Stavrev,
Robert A. Creaser,
Irena Peytcheva,
Atanas Hikov,
Silvia Chavdarova
Publication year - 2020
Publication title -
spisanie na bʺlgarskoto geologičesko družestvo/spisanie na bʺlgarskoto geologičesko družestvo
Language(s) - English
Resource type - Journals
eISSN - 1314-8680
pISSN - 0007-3938
DOI - 10.52215/rev.bgs.2020.81.3.102
Subject(s) - molybdenite , geology , geochronology , paleogene , base metal , electron microprobe , geochemistry , cretaceous , batholith , radiometric dating , galena , hydrothermal circulation , mineralogy , sphalerite , paleontology , metallurgy , materials science , tectonics , fluid inclusions , welding
The study presents first Re-Os age data of molybdenite from the region at Babyak Mo-Ag-Au-W-Bi-base metal deposit, in combination with electron microprobe and laser ablation inductively coupled plasma mass spectrometry results for molybdenite aggregates. The Re-Os geochronology of the analyzed samples defines age at 52.6 ± 0.2 to 53 ± 0.2 Ma of the ore-forming process in the Babyak area. It marks a distinct fertile Early Eocene event in the Cretaceous-Paleogene evolution of the Rila-West Rhodopes batholith.