Hrómundartindur

Hrómundartindur
Hrómundartindur
Highest point
Elevation	540 metres (1,770 ft)
Coordinates	64°04′N 21°13′W / 64.067°N 21.217°W
Geology
Mountain type	central volcano
Last eruption	3500 BCE
	Selected geological features near the Hrómundartindur volcanic system (red outline) and its Holocene lava flows (violet shading). Other shading shows: calderas, central volcanoes and fissure swarms, subglacial terrain above 1,100 m (3,600 ft), and seismically active areas. Clicking on the image enlarges to full window and enables mouse-over with more detail.

Hrómundartindur (Icelandic pronunciation: [ˈr̥ouːˌmʏntarˌtʰɪntʏr̥] ^ⓘ) is a mountain in Iceland north of Hveragerði with an elevation of 540 metres (1,770 ft).^[1] It to the east of Hengill and is the central volcano of an adjacent 25 km (16 mi) long Hrómundartindur volcanic system, which contains a geothermal field.^[3] Like Hengill this area is close to the south-eastern triple junction of the Hreppar microplate, is seismically active, and associated with the Western volcanic zone and the South Iceland seismic zone.^[3] To the north-east are multiple tindars,^[3] and there is a Holocene lava flow called Tjarnahnúkshraun which covers 4 km² (1.5 sq mi) with a volume of 0.03 km³ (0.0072 cu mi).^[4]^[3] The lava ranges from picrite basalt, being predominantly tholeiite basalt with some basaltic andesite.^[3]

References[edit]

^ ^a ^b "Hrómundartindur". Global Volcanism Program. Smithsonian Institution. Retrieved 2021-06-25.
^ Óskarsson, Birgir V.; Riishuus, M.S; Erlendsson, Ögmundur; Askew, Robert A.; Hjartarson, Árni; Sigurgeirsson, Magnús Á.; Brynjólfsson, Skafti; Jakobsson, Sveinn P. (2022). "Jarðfræði af jarðfræðikortum ÍSOR (1:100.000 Geology Maps of Iceland series)". www.ni.is (in Icelandic). Iceland: ÍSOR, Icelandic Institute of Natural History. Retrieved 4 May 2024.
^ ^a ^b ^c ^d ^e Sæmundsson, Kristján (2019). "Catalogue of Icelandic Volcanoes:Hrómundartindur". Retrieved 5 May 2024.
^ Sinton, J.; Grönvold, K.; Sæmundsson, K. (2005). "Postglacial eruptive history of the western volcanic zone, Iceland". Geochemistry, Geophysics, Geosystems. 6 (12). Bibcode:2005GGG.....612009S. doi:10.1029/2005GC001021. ISSN 1525-2027.^{: Fig. 4}