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

Research output: Contribution to journalArticle

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.

Details

Authors
Organisations
External organisations
  • Luleå University of Technology
  • University of Oslo
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Geology

Keywords

  • Lycksele ring structure, possible astrobleme, Possible impact crater, Swedish Lapland
Original languageEnglish
Pages (from-to)96-99
Number of pages4
JournalGFF
Volume142
Issue number2
Early online date2020 Jan 24
Publication statusPublished - 2020
Publication categoryResearch
Peer-reviewedYes