Published October 2, 2019 | Version v1
Miscellaneous Open

Genesis of the Carpathian obsidians

  • 1. Earth Science Institute, Slovak Academy of Sciences, Bratislava (Slovakia)
  • 2. Institute of Geological Sciences, Polish Academy of Sciences, Cracow (Poland)
  • 3. Earth Science Institute, Slovak Academy of Sciences, Banska Bystrica (Slovakia)
  • 4. John de Laeter Centre, Curtin University, Perth (Australia)
  • 5. Czech Geological Survey, Praha (Czech Republic)
  • 6. Institute of Earth Sciences, Goethe University, Frankfurt (Germany)
  • 7. School of Physical Sciences, The Open University, Milton Keynes (United Kingdom)
  • 8. Faculty of Science, Comenius University, Bratislava (Slovakia)
  • 9. Institute of Geography and Earth Science, Aberystwyth University (United Kingdom)
  • 10. University of Salamanca, Salamanca (Spain)
  • 11. Department of Geology, University of Toronto, Toronto (Canada)
  • 12. Dionyz Stur State Institute of Geology, Kosice (Slovakia)

Description

Comprehensive study of the Carpathian obsidians reveals that these rocks as typical arc igneous products were derived by multistage processes with the primary basaltic magma formed due to melting of the lower crustal source at the mantle/crust border. Subsequent formation of melt reservoirs in the middle and upper crust, accompanied by secondary melting of the surrounding rocks with recurrent addition of an ascending melt, and repeated processes of assimilation and fractionation produced a suite of chemically variable lithology from basalt to rhyolites and obsidians before 12.0-11.4 Ma in the Carpathians. (authors)

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Part of:
Geologica Carpathica 70. Proceedings of the Geologica Carpathica 70 Conference

Additional details

Publishing Information

Publisher
Earth Science Institute, Slovak Academy of Science
Imprint Place
Bratislava (Slovakia)
ISBN
978-80-85754-42-1
Imprint Title
Geologica Carpathica 70. Proceedings of the Geologica Carpathica 70 Conference
Imprint Pagination
192 p.
Journal Page Range
p. 75-78
Report number
INIS-SK--2021-011

Conference

Title
Geologica Carpathica 70
Dates
9-11 Oct 2019
Place
Smolenice Castle (Slovakia)

Optional Information

Contract/Grant/Project number
Projects APVV-0549-07; APVV-18-0107; VEGA 0060/16; VEGA 0084/17; EU RDF ITMS-26220120064; EU RDF ITMS-26210120013
Notes
10 refs.; Also published on the web 32 MBytes in PDF format