description Lockne Overview
Lockne is an impact structure in central Sweden that formed when a meteorite struck a marine environment during the Middle Ordovician Period, approximately 455 million years ago. The impact produced a complex geological structure rather than a simple bowl-shaped crater, with evidence preserved in the surrounding bedrock and associated deposits. It is studied by geologists as an example of an ancient marine impact on Earth.
help Lockne FAQ
Where is the Lockne impact structure?
Lockne is an impact structure in central Sweden. It formed when a meteorite struck a marine environment during the Middle Ordovician Period.
When did the Lockne impact occur?
The impact occurred approximately 455 million years ago. That places it in the Middle Ordovician Period of geological history.
Why is Lockne a complex impact structure?
The meteorite struck shallow marine conditions, producing a geological structure more complicated than a simple bowl-shaped crater. Marine sediments and impact-related deposits are part of the site’s geological record.
What makes Lockne different from a crater formed on dry land?
The impact occurred in a marine environment, so water, seabed sediments, and later geological processes affected the structure. Its form and deposits preserve evidence of an underwater or shallow-marine impact.
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