Počet záznamů: 1
Discovery of the first Quaternary maar in the Bohemian Massif, Central Europe, based on combined geophysical and geological surveys
- 1.
SYSNO ASEP 0330220 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Discovery of the first Quaternary maar in the Bohemian Massif, Central Europe, based on combined geophysical and geological surveys Tvůrce(i) Mrlina, Jan (GFU-E) ORCID, RID
Kämpf, H. (DE)
Kroner, C. (DE)
Mingram, J. (DE)
Stebich, M. (DE)
Brauer, A. (DE)
Geissler, W.H. (DE)
Kallmeyer, J. (DE)
Matthes, H. (DE)
Seidl, Michal (GFU-E) ORCID, RIDZdroj.dok. Journal of Volcanology and Geothermal Research. - : Elsevier - ISSN 0377-0273
Roč. 182, č. 1-2 (2009), s. 97-112Poč.str. 16 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Eger Rift ; Quaternary maar volcanism ; geophysical survey ; Saalian lake sediments ; volcanic hazard potential Vědní obor RIV DC - Seismologie, vulkanologie a struktura Země CEP IAA300460602 GA AV ČR - Akademie věd CEZ AV0Z30120515 - GFU-E (2005-2011) UT WOS 000265900500009 DOI 10.1016/j.jvolgeores.2009.01.027 Anotace Based on results of previous investigations of tephra-tuff volcaniclastic deposits and a geophysical survey in the surroundings of the Železná hůrka Quaternary volcano, West Bohemia, we performed detailed geophysical surveys using gravimetry, magnetometry and electrical conductivity techniques. Striking anomalies were revealed in a morphological depression near Mýtina,West Bohemia, as a strong evidence of the assumed maar-diatreme structure. The sharp isometric gravity low of−2.30 mGal, aswell as the corresponding positive magnetic anomaly of 200 nT with a negative rim on its northern side indicate a steeply dipping geological body of low density and containing magnetic rocks/minerals. Magnetic survey also showed pronounced local anomalies outside the depression that can reflect relicts of the tephra rim of the maar. Pracoviště Geofyzikální ústav Kontakt Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Rok sběru 2010
Počet záznamů: 1