The theory that glaciers move under their own weight as a viscous material was first proposed in the 1790s by Sveinn Pálsson. While studying natural science in Copenhagen from 1787 to 1791, he prepared for an extensive period of field research that would redefine contemporary understanding of geology, volcanic activity, and the movement of ice across the Icelandic landscape.
Scientific Observation and Research
Pálsson conducted field studies throughout Iceland during a four-year period. His findings were documented in several treatises, including Jöklarit, which focused on glaciers, and Eldrit, which detailed volcanic activity. He was the first to identify the volcanic belt extending from the southwest to the northeast of the country and recorded the first discovery of gabbro in the region. His 1795 manuscript, a physical and geographical description of Icelandic ice mountains, remained unpublished in its original Danish form for nearly a century, finally appearing in part in Oslo during the 1880s and in full in 1945.
Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.
Take the IQ test →Glacial Dynamics and Exploration
The conceptualization of glacial flow as a creeping motion, comparable to liquid pitch or resin, originated from his direct observations of Kvíárjökull and Hrútárjökull. By examining curved surface stripes, he determined that glaciers behaved as liquids despite lacking a melting state. Pálsson is also credited as the first known individual to ascend Öræfajökull. His research emphasized the role of glacial sediments, melt-water rivers, and the secondary effects triggered by subglacial volcanic eruptions.
Medical Practice and Domestic Life
From 1799 until 1833, Pálsson served as a physician for southern Iceland, covering a district that included the Westman Islands and spanned from Árnessýsla to Skeiðarár Sandur. The territory was challenging to navigate due to the absence of bridges across numerous rivers. Because medical compensation was insufficient for supporting a large household, he engaged in farming and commercial fishing from a rowboat. His wife, Þórunn Bjarnadóttir, managed their farm at Suður-Vík in Mýrdalur while he traveled. Together they raised seven of their 15 children to adulthood.
Fast facts
- Born: 1762, Skagafjörður
- Died: 24 April 1840, Vík í Mýrdal
- Citizenship: Kingdom of Denmark
- Primary occupations: Physician, biologist, explorer
- Known major works: Ferðabók, Jöklarit, Eldrit
- Medical service period: 1799–1833
Questions readers ask
What was Pálsson's primary contribution to geology?
He proposed that glaciers move under their own weight like a viscous liquid, a theory he developed while observing glacial formations in the 1790s.
Where is Sveinn Pálsson buried?
He was laid to rest in 1840 at the old churchyard in Reynir, located near Vík.
.jpg)