
Carl Alwmark
Senior lecturer

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