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The Lycksele ring structure–still no proof of an impact origin

Holmqvist, Anders LU ; Alwmark, Carl LU ; Dypvik, Henning and Nilsen, Odd (2020) In GFF 142(2). p.96-99
Abstract

The origin of the more than 100 km wide Lycksele ring structure in Sweden has puzzled geoscientists for years. In this short note we present results from field analysis, detailed sampling and laboratory analysis executed in search for evidence of an impact, e.g. shatter cones and shock features in minerals. Both approaches gave negative results and consequently an impact origin could neither be confirmed nor rejected. The circular structure of the Lycksele ring and its central uplift are, however, typical features of large, complex impact structures.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Lycksele ring structure, possible astrobleme, Possible impact crater, Swedish Lapland
in
GFF
volume
142
issue
2
pages
4 pages
publisher
Taylor & Francis
external identifiers
  • scopus:85078460539
ISSN
1103-5897
DOI
10.1080/11035897.2019.1701547
language
English
LU publication?
yes
id
935a1a97-59e7-423c-92c7-6137b4fddf18
date added to LUP
2020-02-10 13:34:01
date last changed
2020-12-03 16:27:21
@article{935a1a97-59e7-423c-92c7-6137b4fddf18,
  abstract     = {<p>The origin of the more than 100 km wide Lycksele ring structure in Sweden has puzzled geoscientists for years. In this short note we present results from field analysis, detailed sampling and laboratory analysis executed in search for evidence of an impact, e.g. shatter cones and shock features in minerals. Both approaches gave negative results and consequently an impact origin could neither be confirmed nor rejected. The circular structure of the Lycksele ring and its central uplift are, however, typical features of large, complex impact structures.</p>},
  author       = {Holmqvist, Anders and Alwmark, Carl and Dypvik, Henning and Nilsen, Odd},
  issn         = {1103-5897},
  language     = {eng},
  month        = {01},
  number       = {2},
  pages        = {96--99},
  publisher    = {Taylor & Francis},
  series       = {GFF},
  title        = {The Lycksele ring structure–still no proof of an impact origin},
  url          = {http://dx.doi.org/10.1080/11035897.2019.1701547},
  doi          = {10.1080/11035897.2019.1701547},
  volume       = {142},
  year         = {2020},
}