The rise of land masses after the removal of the enormous weight of ice sheets from the last glacial period, the recovery phase of glacial isostatic adjustment. Its direct raising effects are readily apparent in parts of Northern Eurasia, Northern America, Patagonia and Antarctica, and through ocean siphoning and continental levering its effects on sea level are felt globally, far from the current and former ice sheets.
Facts
TimescaleOngoing since the removal of the last glacial period's ice sheets 1 Driving ForceThe slow viscous flow of mantle material back beneath a landmass after the retreat of an ice sheet whose weight had depressed the crust. 1 Resulting FeatureRaises the land surface over centuries to millennia; GPS monitoring in northern Europe measures a peak uplift rate of about 11 millimeters a year in the Gulf of Bothnia even today. 1 SignificancePost-glacial rebound is measured with precise geodesy to constrain the viscosity of the mantle and must be corrected for when interpreting local sea-level change. 1 Post-Glacial Rebound
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Associated With
Post-glacial rebound and isostatic depression are phases of glacial isostasy.
Source Post-Glacial Rebound (Wikipedia)
Caused By
The rebound follows the removal of the ice sheets glaciation loaded onto the crust.
Source Post-Glacial Rebound (Wikipedia)
Causes
Source Haparanda archipelago (Wikipedia)
Source High Coast (Wikipedia)
Source Holmöarna (Wikipedia)
Source Land bridge (Wikipedia)
Source Lulea archipelago (Wikipedia)
Source Raised shoreline (Wikipedia)
In Discipline
Source Post-Glacial Rebound (Wikipedia)
Sources
1. Post-Glacial Rebound (Wikipedia)
Wikimedia FoundationLead sectionQuote, Lead section
Post-glacial rebound (also called isostatic rebound or crustal rebound) is the rise of land masses after the removal of the huge weight of ice sheets during the last glacial period, which had caused isostatic depression.
Land bridge (Wikipedia)
Causes: Land bridge, Article text
A land bridge can be created by marine regression, in which sea levels fall, exposing shallow, previously submerged sections of continental shelf; or when new land is created by plate tectonics; or occasionally when the sea floor rises due to post-glacial rebound after an ice age.
Causes: Land bridge, Lead, process Post-Glacial Rebound
A land bridge can be created by marine regression, in which sea levels fall, exposing shallow, previously submerged sections of continental shelf; or when new land is created by plate tectonics; or occasionally when the sea floor rises due to post-glacial rebound after an ice age.
View the SourceRaised shoreline (Wikipedia)
Causes: Raised Shoreline, Article text
These landforms are formed by a relative change in sea level due to global sea level rise, isostatic rebound, and/or tectonic uplift.
Causes: Raised Shoreline, Lead, process Post-Glacial Rebound
This area will then experience post-glacial rebound, effectively raising the shoreline surface.
View the SourceHaparanda archipelago (Wikipedia)
Causes: Haparanda archipelago, Article text, process Post-Glacial ReboundQuote, Causes: Haparanda archipelago, Article text, process Post-Glacial Rebound
It is divided into the archipelagos of Piteå (550 islands), Luleå (1,312 islands), Kalix (792 islands) and Haparanda (652 islands). Due to post-glacial rebound the land is rising at from 0.8 to 1 centimetre (0.31 to 0.39 in) annually, so the shoreline can retreat by as much as 100 metres (330 ft) in one person's lifetime.
High Coast (Wikipedia)
Causes: Hoga Kusten, Lead, process Post-Glacial ReboundQuote, Causes: Hoga Kusten, Lead, process Post-Glacial Rebound
It is notable as an area for research on post-glacial rebound and eustacy, in which the land rises as the covering glaciers melt, a phenomenon first recognised and studied there.
Holmöarna (Wikipedia)
Causes: Holmöarna, Article text, process Post-Glacial ReboundQuote, Causes: Holmöarna, Article text, process Post-Glacial Rebound
Grossgrunden (from Old Norse grjót meaning "rock" and grund meaning "bottom") was once an area of dangerous rocky shallows, but due to the post-glacial rebound it is now a proper island surrounded by outlying islets.
Lulea archipelago (Wikipedia)
Causes: Luleå archipelago, Article text, process Post-Glacial ReboundQuote, Causes: Luleå archipelago, Article text, process Post-Glacial Rebound
Many of the islands are uninhabited, in a natural state, and are quite small with little or nothing in the way of facilities for visitors. Due to post-glacial rebound the land is rising at from 0.8 to 1 centimetre (0.31 to 0.39 in) annually, so the shoreline can retreat by as much as 100 metres (330 ft) in one person's lifetime.
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