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The newly discovered neogene maar volcano near the Mariánské Lázně, Western Bohemia
- 1.0434494 - ÚSMH 2015 RIV CZ eng J - Journal Article
Valenta, Jan - Rapprich, V. - Skácelová, Z. - Gaždová, Renata - Fojtíková, Lucia
The newly discovered neogene maar volcano near the Mariánské Lázně, Western Bohemia.
Acta geodynamica et geomaterialia. Roč. 11, č. 2 (2014), s. 107-116. ISSN 1214-9705. E-ISSN 2336-4351
R&D Projects: GA AV ČR IAA300120905
Institutional research plan: CEZ:AV0Z30460519
Keywords : maar * diatreme * gravity survey * magnetic survey
Subject RIV: DB - Geology ; Mineralogy
Impact factor: 0.389, year: 2014
http://www.irsm.cas.cz/materialy/acta_content/2013_doi/Valenta_AGG_2013_0061.pdf
The local magnetic maxima near the village Rájov (NE of Mariánské Lázně) revealed by airborne magnetometry was further surveyed using ground gravimetry and magnetometry. The measured magnetic data revealed a positive magnetic anomaly in the centre of the surveyed area. The measured gravity data showed two small-scale gravity minima. The geophysical data are interpreted by a presence of the maar-diatreme volcano, basic intrusions, and a lava flow filling the maar crater. The overall interpretation suggests, that volcanism in this area probably started with the phreatomagmatic eruption of the Rájov maar and then continued with the Strombolian eruption of the nearby Podhorní vrch volcano.
Permanent Link: http://hdl.handle.net/11104/0238523
Number of the records: 1