Journal
SPISANIE NA B LGARSKOTO GEOLOGICHESKO DRUZHESTOV-REVIEW OF THE BULGARIAN GEOLOGICAL SOCIETY
Volume 83, Issue -, Pages 125-127Publisher
BULGARIAN ACAD SCIENCE
DOI: 10.52215/rev.bgs.2022.83.3.125
Keywords
Livingston Island; Antarctica; Eocene pluton; magma mixing; deformation
Categories
Funding
- Ministry of Education and Science, Bulgaria
- [70-25-54]
Ask authors/readers for more resources
Research shows that the southeastern area of Livingston Island is built up by igneous rocks of the Eocene Barnard Point Pluton and related or younger dykes, with different rock varieties indicating magma mixing processes. The presence of magmatic foliation and solid-state foliation parallelizing the main foliation of the metamorphic host rocks suggests tectonically active setting for room creation and magma emplacement.
The Southeastern area of Livingston Island is built up by igneous rocks of the Eocene Barnard Point Pluton and related or younger dykes. Our new field and petrographic studies in the area show that the pluton consists of several main rock varieties namely gabbro, gabbrodiorite, granodiorite and granites, whose relationships evidences magma mixing processes. The internal parts of the former chamber contain levels enriched in mafic microgranular enclaves forming pronounced magmatic foliation, which towards western contact of the pluton transits to a subverti-cal N-S trending solid-state foliation and both parallelize the main foliation of the metamorphic host rocks. The latter evidences for a room creation and magma emplacement in tectonically active setting.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available