The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Carl Alwmark

Carl Alwmark

Senior lecturer

Carl Alwmark

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

Author

  • Anders Holmqvist
  • Carl Alwmark
  • Henning Dypvik
  • Odd Nilsen

Summary, in English

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.

Department/s

  • Lithosphere and Biosphere Science

Publishing year

2020-01-24

Language

English

Pages

96-99

Publication/Series

GFF

Volume

142

Issue

2

Document type

Journal article

Publisher

Taylor & Francis

Topic

  • Geology

Keywords

  • Lycksele ring structure
  • possible astrobleme
  • Possible impact crater
  • Swedish Lapland

Status

Published

ISBN/ISSN/Other

  • ISSN: 1103-5897