{{Short description|Island in Svalbard, Norway}} [[File:Nathorst_Land_IMG_3268_Midterhuken.JPG|thumb |right |200 px|Mariaholmen on the left side of the oblique aerial photograph, off ''Gåsbergodden '', the western tip of Nathorst Land.]] [[File:Nathorst Land IMG 4017 akselöya van mijenfjorden.JPG|thumb |right |200 px|Van Mijenfjorden and Akseløya, with Mariaholmen to the right.]] '''Mariaholmen''' is an islet in Nathorst Land at the mouth of Van Mijenfjorden at Spitsbergen, Svalbard. It is located south of Akseløya, between Akseløya and Måseneset. While Akselsundet north of Akseløya is regarded as the main entrance to Van Mijenfjorden, Mariasundet between Mariaholmen and Måseneset is also navigable.<ref>{{cite web |url=http://placenames.npolar.no/stadnamn/Mariaholmen |title=Mariaholmen (Svalbard) |publisher=Norwegian Polar Institute |accessdate=17 July 2013}}</ref><ref>{{cite book |title=Arctic Pilot: Sailing directions Svalbard–Jan Mayen |year=1988 | volume =7 |publisher=The Norwegian Hydrographic Service and The Norwegian Polar Institute |location=Stavanger |language= |isbn=82-90653-06-9 |page=213 }}</ref>
Mariaholmen is composed of Upper Permian (Kapp Starostin Fm.), Lower Triassic (Vardebukta Fm. and Tvillingodden Fm.) and Middle Triassic (Bravaisberget Fm.) sedimentary deposits that have been stratigraphically tilted to a vertical position.<ref>{{cite web |url=https://hdl.handle.net/10037/15463 |title=Basin analysis and diagenetic investigations of Early and Middle Triassic sediments on Mariaholmen, Svalbard |publisher=UiT |page=58|accessdate=2 October 2025}}</ref>
==References== {{Reflist}}
{{coord|77.6818|N|14.8102|E|display=title}}
{{DEFAULTSORT:Mariaholmen}} Category:Islands of Svalbard Category:Spitsbergen
{{Spitsbergen-geo-stub}}