First known Terrestrial Impact of a Binary Asteroid from a Main Belt Breakup Event
(2014) In Scientific Reports 4.- Abstract
- Approximately 470 million years ago one of the largest cosmic catastrophes occurred in our solar system since the accretion of the planets. A 200-km large asteroid was disrupted by a collision in the Main Asteroid Belt, which spawned fragments into Earth crossing orbits. This had tremendous consequences for the meteorite production and cratering rate during several millions of years following the event. The 7.5-km wide Lockne crater, central Sweden, is known to be a member of this family. We here provide evidence that Lockne and its nearby companion, the 0.7-km diameter, contemporaneous, Malingen crater, formed by the impact of a binary, presumably 'rubble pile' asteroid. This newly discovered crater doublet provides a unique reference for... (More)
- Approximately 470 million years ago one of the largest cosmic catastrophes occurred in our solar system since the accretion of the planets. A 200-km large asteroid was disrupted by a collision in the Main Asteroid Belt, which spawned fragments into Earth crossing orbits. This had tremendous consequences for the meteorite production and cratering rate during several millions of years following the event. The 7.5-km wide Lockne crater, central Sweden, is known to be a member of this family. We here provide evidence that Lockne and its nearby companion, the 0.7-km diameter, contemporaneous, Malingen crater, formed by the impact of a binary, presumably 'rubble pile' asteroid. This newly discovered crater doublet provides a unique reference for impacts by combined, and poorly consolidated projectiles, as well as for the development of binary asteroids. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4780772
- author
- Ormoe, Jens ; Sturkell, Erik ; Alwmark, Carl LU and Melosh, Jay
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Scientific Reports
- volume
- 4
- article number
- 6724
- publisher
- Nature Publishing Group
- external identifiers
-
- wos:000343595600001
- pmid:25340551
- scopus:84961290850
- pmid:25340551
- ISSN
- 2045-2322
- DOI
- 10.1038/srep06724
- language
- English
- LU publication?
- yes
- id
- 3f6cbd20-e929-44bb-8c87-0f8453d12f31 (old id 4780772)
- date added to LUP
- 2016-04-01 14:18:14
- date last changed
- 2022-03-29 20:18:32
@article{3f6cbd20-e929-44bb-8c87-0f8453d12f31,
abstract = {{Approximately 470 million years ago one of the largest cosmic catastrophes occurred in our solar system since the accretion of the planets. A 200-km large asteroid was disrupted by a collision in the Main Asteroid Belt, which spawned fragments into Earth crossing orbits. This had tremendous consequences for the meteorite production and cratering rate during several millions of years following the event. The 7.5-km wide Lockne crater, central Sweden, is known to be a member of this family. We here provide evidence that Lockne and its nearby companion, the 0.7-km diameter, contemporaneous, Malingen crater, formed by the impact of a binary, presumably 'rubble pile' asteroid. This newly discovered crater doublet provides a unique reference for impacts by combined, and poorly consolidated projectiles, as well as for the development of binary asteroids.}},
author = {{Ormoe, Jens and Sturkell, Erik and Alwmark, Carl and Melosh, Jay}},
issn = {{2045-2322}},
language = {{eng}},
publisher = {{Nature Publishing Group}},
series = {{Scientific Reports}},
title = {{First known Terrestrial Impact of a Binary Asteroid from a Main Belt Breakup Event}},
url = {{http://dx.doi.org/10.1038/srep06724}},
doi = {{10.1038/srep06724}},
volume = {{4}},
year = {{2014}},
}