Open AccessEclogite-like rocks from Southern Pirin Mountains – preliminary results about petrology and time of formation
Author(s) -
Lyubomirka Macheva,
Philip Machev,
Rossitsa D. Vassileva,
Yu. V. Plotkina
Publication year - 2021
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.2021.82.3.61
Subject(s) - eclogite , geology , geochemistry , metasomatism , mineral , petrology , assemblage (archaeology) , tectonics , paleontology , chemistry , mantle (geology) , organic chemistry , subduction
North-northeast of the village of Ilinden (Southern Pirin Mnt.) three eclogite boudins were separated on the geological map in scale 1:50 000 (Sarov, 2010). The rocks belong to the Slasten lithotectonic unit. The mineral assemblage and mineral chemistry do not allow these rocks to be classified as eclogites. They can be considered as eclogite-like ones, formed by postmagmatic-metasomatic alteration of the host rocks. Based on LA-ICP-MS sphene U-Pb dating, eclogite-like rocks yield a Late Jurassic age (160±19 Ma).