Basaltic Dyke with Specific Volcanogenic Structures and Its Geomorphic Evolution: Unique Geoheritage of the Faroe Islands (North Atlantic Ocean)

0509628 - GLÚ 2020 RIV DE eng J - Journal Article
Raška, P. - Pokorný, R. - Krmíček, Lukáš - Kuboušková, S. - Mortensen, L.
Basaltic Dyke with Specific Volcanogenic Structures and Its Geomorphic Evolution: Unique Geoheritage of the Faroe Islands (North Atlantic Ocean).
Geoheritage. Roč. 11, č. 2 (2019), s. 417-426. ISSN 1867-2477. E-ISSN 1867-2485
Institutional support: RVO:67985831
Keywords : Palaeogene volcanism * Geoheritage * Sandfelli dyke * Pseudo-hieroglyphs * Columnar jointing * Faroe Islands
OECD category: Geology
Impact factor: 3.062, year: 2019
Method of publishing: Limited access
https://link.springer.com/article/10.1007%2Fs12371-018-0296-x

Volcanic landforms resulting from Cenozoic volcanism represent the most peculiar features of global geodiversity and provide eminent narratives for geoeducation. Among them, however, relict volcanic forms and site-specific landforms in remote areas have received less attention. In this paper, we provide the first description of unique volcanogenic features (hereinafter referred to as pseudo-hieroglyphs) developed on a summit rock wall at the Sandfelli ridge near the village of Gjógv in the N Eysturoy Island (Faroe Islands). The geomorphic evolution of the ridge and rock wall during the Quaternary is described and detailed petrographic analyses of the volcanogenic features are provided. Based onobserved petrographical features, we interpret the pseudohieroglyphs to probably represent unique examples of chaotic horizontal columnar jointing. Following the geomorphological and petrographic examination of the study site, we analyse current Faroese legislation aiming at nature conservation and use this case to discuss broader implications of geoheritage conservation and geotourism in distant regions.
Permanent Link: http://hdl.handle.net/11104/0300375