Neugrund breccia: Difference between revisions

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Neugrund breccia is a type of rock consisting of gneissic breccia and amphibolite originating from the Neugrund crater.^[1] Neugrund breccia is different from Ordovician breccia, which is found in a similar region but was formed millions of years later after a different meteor strike.

Neugrund breccia formed during the cementation of meteor fragments. Glacial action distributed erratics of breccia throughout an area of over 10,000 km² surrounding the impact site.^[2] Boulders of Neugrund breccia can be found in north-western Estonia and are especially concentrated around the island of Osmussaar.

The largest known Neugrund breccia formation is Skarvan. It is located near the west coast of Osmussaar.^[3]

Skarvan

^ Schmieder, Martin; Buchner, Elmar (2013-09-01). "Impaktereignisse in Europa". Zeitschrift der Deutschen Gesellschaft für Geowissenschaften. 164 (3): 387–415. doi:10.1127/1860-1804/2013/0032. ISSN 1860-1804.
^ Suuroja, Sten; Suuroja, Kalle (2004), "The Neugrund Marine Impact Structure (Gulf of Finland, Estonia)", Cratering in Marine Environments and on Ice, Berlin, Heidelberg: Springer Berlin Heidelberg, pp. 75–95, ISBN 978-3-642-07376-2, retrieved 2022-06-21
^ Suuroja, Sten; Suuroja, Kalle (2004), "The Neugrund Marine Impact Structure (Gulf of Finland, Estonia)", Cratering in Marine Environments and on Ice, Berlin, Heidelberg: Springer Berlin Heidelberg, pp. 75–95, ISBN 978-3-642-07376-2, retrieved 2022-06-21

[1] Schmieder, Martin; Buchner, Elmar (2013-09-01). "Impaktereignisse in Europa". Zeitschrift der Deutschen Gesellschaft für Geowissenschaften. 164 (3): 387–415. doi:10.1127/1860-1804/2013/0032. ISSN 1860-1804.

[2] Suuroja, Sten; Suuroja, Kalle (2004), "The Neugrund Marine Impact Structure (Gulf of Finland, Estonia)", Cratering in Marine Environments and on Ice, Berlin, Heidelberg: Springer Berlin Heidelberg, pp. 75–95, ISBN 978-3-642-07376-2, retrieved 2022-06-21

[3] Suuroja, Sten; Suuroja, Kalle (2004), "The Neugrund Marine Impact Structure (Gulf of Finland, Estonia)", Cratering in Marine Environments and on Ice, Berlin, Heidelberg: Springer Berlin Heidelberg, pp. 75–95, ISBN 978-3-642-07376-2, retrieved 2022-06-21

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 {{short description|Type of meteorite-related rock}}
 {{Unreferenced|date=June 2019|bot=noref (GreenC bot)}}
-'''Neugrund breccia''' is a type of [[Rock (geology)|rock]] consisting of [[gneiss|gneissic]] [[breccia]] and [[amphibolite]] originating from the [[Neugrund crater]].
+'''Neugrund breccia''' is a type of [[Rock (geology)|rock]] consisting of [[gneiss|gneissic]] [[breccia]] and [[amphibolite]] originating from the [[Neugrund crater]].<ref>{{Cite journal |last=Schmieder |first=Martin |last2=Buchner |first2=Elmar |date=2013-09-01 |title=Impaktereignisse in Europa |url=http://dx.doi.org/10.1127/1860-1804/2013/0032 |journal=Zeitschrift der Deutschen Gesellschaft für Geowissenschaften |volume=164 |issue=3 |pages=387–415 |doi=10.1127/1860-1804/2013/0032 |issn=1860-1804}}</ref> Neugrund breccia is different from [[Ordovician]] breccia, which is found in a similar region but was formed millions of years later after a [[Ordovician meteor event|different meteor strike]].
+Neugrund breccia formed during the [[Cementation (geology)|cementation]] of [[meteor]] fragments. Glacial action distributed [[Glacial erratic|erratics]] of breccia throughout an area of over 10,000 km<sup>2</sup> surrounding the impact site.<ref>{{Citation |last=Suuroja |first=Sten |title=The Neugrund Marine Impact Structure (Gulf of Finland, Estonia) |date=2004 |url=http://dx.doi.org/10.1007/978-3-662-06423-8_5 |work=Cratering in Marine Environments and on Ice |pages=75–95 |place=Berlin, Heidelberg |publisher=Springer Berlin Heidelberg |isbn=978-3-642-07376-2 |access-date=2022-06-21 |last2=Suuroja |first2=Kalle}}</ref> Boulders of Neugrund breccia can be found in north-western [[Estonia]] and are especially concentrated around the island of [[Osmussaar]].
-Neugrund breccia formed during the [[Cementation (geology)|cementation]] of [[meteor]] fragments.
+The largest known Neugrund breccia formation is Skarvan. It is located near the west coast of Osmussaar.<ref>{{Citation |last=Suuroja |first=Sten |title=The Neugrund Marine Impact Structure (Gulf of Finland, Estonia) |date=2004 |url=http://dx.doi.org/10.1007/978-3-662-06423-8_5 |work=Cratering in Marine Environments and on Ice |pages=75–95 |place=Berlin, Heidelberg |publisher=Springer Berlin Heidelberg |isbn=978-3-642-07376-2 |access-date=2022-06-21 |last2=Suuroja |first2=Kalle}}</ref>
-Boulders of neugrund breccia can be found in north-western [[Estonia]] and on [[Osmussaar]].
-Biggest known Neugrund breccia formation is called Skarvan.
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