Gardnos crater

Gardnos Crater

Impact crater/structure
Confidence| Confirmed
Diameter| 5 kilometres (3 mi)
Age| 500 ± 10 Ma
Exposed| Yes
Drilled| No
Location
Country| Norway
District| Buskerud
Municipality| Nesbyen municipality
Lua error in Module:Location_map at line 422: No value was provided for longitude.

Gardnos crater (Gardnos krateret) is a meteorite impact crater in Nesbyen municipality in Buskerud, Norway . It is located inside Meteorite Park (Meteorittparken) at Gardnos 10 kilometres (6.2 mi) north of the town of Nesbyen. [1]

Gardnos crater is 5 kilometres (3 mi) in diameter, and was created when a meteorite with an estimated diameter of 200 to 300 metres (660 to 980 ft) struck 500 million years ago. At first this site was believed to be a volcanic crater, but in 1990 two geologists, Johan Naterstad and Johannes A. Dons, confirmed that it was in fact formed by meteorite impact.[2][3] [4]

The original bedrock in the area was fractured and a powder of crushed rocks was forced into all the fractures. This is the origin of the peculiar rock in this area. It is possible to drive into the centre of the crater, which makes the Gardnos crater one of the world's most accessible meteorite craters. There are two trails through the surrounding natural region, with information signs describing the unique geology of the area.[5]

## References

1. ↑ Rune S. Selbekk, University of Oslo. "Gardnos meteorittkrater". Store norske leksikon. https://snl.no/Gardnos_meteorittkrater. Retrieved October 1, 2017.
2. ↑ "Gardnos". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. http://www.passc.net/EarthImpactDatabase/New website_05-2018/Gardnos.html. Retrieved 2008-12-30.
3. ↑ "Geolog Johan Naterstad". Tørdal Bygdeutvikling. http://tordalbygdeutvikling.origo.no/-/bulletin/show/587070_geolog-johan-naterstad-besoeker-toerdal?ref=checkpoint. Retrieved October 1, 2017.
4. ↑ "Johannes A. Dons". University of Oslo Naturhistorisk museum. http://www.nhm.uio.no/om/aktuelle-saker/arkiv/2009/dons.html. Retrieved October 1, 2017.
5. ↑ Kalleson, Elin. "The Gardnos structure : the impactites, sedimentary deposits and post-impact history". University of Oslo. https://www.duo.uio.no/handle/10852/33234. Retrieved October 1, 2017.

## External links

* Meteorittparken website
* Earth Impact Database

[ ⚑ ]  60°39′N 9°0′E﻿ / ﻿60.65°N 9°E﻿ / 60.65; 9

* v
* t
* e

Impact cratering on Earth

* Impact crater
* Impact event

Lists|

* Worldwide
* Africa
* Antarctica
* Asia
* Australia
* Europe
* North America
* South America
* By country

Confirmed

≥20 km diameter|

* Acraman
* Amelia Creek
* Araguainha
* Beaverhead
* Boltysh
* Carswell
* Charlevoix
* Chesapeake Bay
* Chicxulub
* Clearwater East & West
* Gosses Bluff
* Haughton
* Kamensk
* Kara
* Karakul
* Keurusselkä
* Lappajärvi
* Logancha
* Manicouagan
* Manson
* Mistastin
* Mjølnir
* Montagnais
* Morokweng
* Nördlinger Ries
* Obolon'
* Popigai
* Presqu'île
* Puchezh-Katunki
* Rochechouart
* Saint Martin
* Shoemaker
* Siljan Ring
* Slate Islands
* Steen River
* Strangways
* Sudbury
* Tookoonooka
* Tunnunik
* Vredefort
* Woodleigh
* Yarrabubba

Topics|

* Alvarez hypothesis
* Australite
* Breccia
* Coesite
* Complex crater
* Cretaceous–Paleogene boundary
* Cryptoexplosion
* Ejecta blanket
* Impact crater
* Impact structure
* Impactite
* Late Heavy Bombardment
* Lechatelierite
* Meteorite
* Moldavite
* Ordovician meteor event
* Philippinite
* Planar deformation features
* Shatter cone
* Shock metamorphism
* Shocked quartz
* Stishovite
* Suevite
* Tektite

Research|

* Baldwin, Ralph Belknap
* Barringer, Daniel
* Barringer Medal
* Chao, Edward C T
* Dietz, Robert S
* Hartmann, William K
* Melosh, H Jay
* Ryder, Graham
* Schultz, Peter H
* Shoemaker, Eugene
* Earth Impact Database
* Impact Field Studies Group
* Lunar and Planetary Institute
* Traces of Catastrophe

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Gardnos crater. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Earth:Gardnos_crater&oldid=248462"
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template