40Ar/39Ar age constraints for an early Alpine metamorphism of the Sakar unit, Sakar–Strandzha zone, Bulgaria. (14th December 2020)
- Record Type:
- Journal Article
- Title:
- 40Ar/39Ar age constraints for an early Alpine metamorphism of the Sakar unit, Sakar–Strandzha zone, Bulgaria. (14th December 2020)
- Main Title:
- 40Ar/39Ar age constraints for an early Alpine metamorphism of the Sakar unit, Sakar–Strandzha zone, Bulgaria
- Authors:
- Bonev, Nikolay
Spikings, Richard
Moritz, Robert - Abstract:
- Abstract: We investigated the Sakar unit metamorphic rocks of the Sakar–Strandzha zone in Bulgaria, using 40 Ar/ 39 Ar dating of amphibole from the polymetamorphic basement and white mica in the overlying upper Permian metasedimentary rocks of the Paleokastro Formation. The amphibole and white mica revealed plateau ages of 140.50 ± 1.75 Ma and 126.19 ± 1.29 Ma, respectively, indicating an Early Cretaceous cooling history of the regional amphibolite-facies metamorphism to greenschist-facies conditions. Similar metamorphic grades and cooling histories of the Sakar unit share evidence with the nearby Rhodope Massif for the northern Aegean region-wide early Alpine tectonometamorphic event.
- Is Part Of:
- Geological magazine. Volume 157:Number 12(2020)
- Journal:
- Geological magazine
- Issue:
- Volume 157:Number 12(2020)
- Issue Display:
- Volume 157, Issue 12 (2020)
- Year:
- 2020
- Volume:
- 157
- Issue:
- 12
- Issue Sort Value:
- 2020-0157-0012-0000
- Page Start:
- 2106
- Page End:
- 2112
- Publication Date:
- 2020-12-14
- Subjects:
- 40Ar/39Ar geochronology, -- Sakar–Strandzha zone, -- Bulgaria
Geology -- Periodicals
551.05 - Journal URLs:
- http://journals.cambridge.org/action/displayJournal?jid=GEO ↗
- DOI:
- 10.1017/S0016756820000953 ↗
- Languages:
- English
- ISSNs:
- 0016-7568
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library HMNTS - ELD Digital store
- Ingest File:
- 15134.xml