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Wikipedia:Map data/Snæfellsnes volcanic belt

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Description

Abstracted geological map of Snæfellsnes volcanic belt for use in articles on Snæfellsjökull, Helgrindur, Ljósufjöll,Snæfellsnes and Geological deformation of Iceland. Use of the file in other articles will revert to standard colours that do not distinguish between the three volcanoes except if a user uses mouse-over.

Source

The data is original, as a compromise representation, and is ultimately based upon 1982 work onwards by mainly Haukur Jóhannesson checked against other mapping representations/abstractions:

  • 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.
  • Jóhannesson, Haukur; Sæmundsson, Kristján (2009). "Geological maps:Tectonics 1:600,000". Icelandic Institute of Natural History.
  • Jóhannesson, Haukur (2019). "Catalogue of Icelandic Volcanoes - Helgrindur:Map Layers". Icelandic Meteorological Office, Institute of Earth Sciences at the University of Iceland, Civil Protection Department of the National Commissioner of the Iceland Police. Retrieved 24 February 2024.
  • Jóhannesson, Haukur (2019). "Catalogue of Icelandic Volcanoes - Snæfellsjökull:Map Layers". Icelandic Meteorological Office, Institute of Earth Sciences at the University of Iceland, Civil Protection Department of the National Commissioner of the Iceland Police. Retrieved 24 February 2024.
  • Jóhannesson, Haukur (2016). "Catalogue of Icelandic Volcanoes - Ljósufjöll:Map Layers". Icelandic Meteorological Office, Institute of Earth Sciences at the University of Iceland, Civil Protection Department of the National Commissioner of the Iceland Police. Retrieved 24 February 2024.
  • Thordarson, T.; Hoskuldsson, A. (2008). "Postglacial Volcanism in Iceland" (PDF). Jökull. 58: 197–228.

Representations of the Snæfellsnes volcanic belt exist that map by geological age, palaeomagnetism and other criteria. They should be consulted by those who wish to improve this mapping or resolve the inconsistencies as to boundaries and location of the various systems found in the literature during preparation of this work. Some recent work appears to be based on Jóhannesson's original 1982 mapping and not the same author's later corrections. Sources that may be useful and were used to check particular features in the mapping include:

Date

2024-02-24

Author

User:ChaseKiwi

Permission
(Reusing this file)

See below.

Additional information The data has had switching logic introduced so is no longer a pure json file. It is suggested json is debugged else where. The volcanic systems in the Snæfellsnes volcanic belt are poorly defined but presently academic sources agree there are 3 main systems. When used on articles about the belt the key is:
  Snæfellsjökull
  Helgrindur
  Ljósufjöll
for the central volcanoes and their fissure fields (paler shading). Otherwise the map is complimentary to data files Wikipedia:Map data/Askja,Wikipedia:Map data/Katla,Wikipedia:Map data/Hengill,Wikipedia:Map data/Grímsvötn, Wikipedia:Map data/Öræfi volcanic belt, Wikipedia:Map data/Hofsjökull, and intended data file Wikipedia:Map data/Vatnajökull which may abstract out glacial data. 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.

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