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Internal fabric development in complex lava domes
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SYSNO ASEP 0313728 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Internal fabric development in complex lava domes Title Vývoj vnitřních staveb ve složených lávových dómech Author(s) Závada, Prokop (GFU-E) ORCID, RID
Kratinová, Zuzana (GFU-E) ORCID, RID
Kusbach, V. (CZ)
Schulmann, K. (FR)Source Title Tectonophysics. - : Elsevier - ISSN 0040-1951
Roč. 466, č. 1-2 (2009), s. 101-113Number of pages 13 s. Language eng - English Country NL - Netherlands Keywords analogue modeling ; lava extrusion ; exogenous growth ; crystal-rich lava ; AMS Subject RIV DB - Geology ; Mineralogy R&D Projects KJB301110703 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) KJB300120702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z30120515 - GFU-E (2005-2011) UT WOS 000264470600009 DOI 10.1016/j.tecto.2008.07.005 Annotation This work describes the results of analogue modeling simulating lava dome growth using plaster of Paris and a hydraulic squeezer apparatus. The dome shape development, and internal flow structure and magnetic fabric pattern enabled to understand the growth dynamics of natural lava domes. Rheological properties of used analogue material well correspond with expected behavior of natural lavas with higher content of crystals (e.g. andesites and dacites). The analogue modeling apparatus consists of a hydraulic squeezer and a container from which the plaster is forcefully injected into a perspex box filled with sand. The growth of most of the model lava domes has shown at first symmetric growth, which was followed by asymmetric emplacement of distinct portions of the analogue material that had lobate shape in vertical cross-sections. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2009
Number of the records: 1