The Lycksele ring structure - still no proof of an impact origin
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 m...
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Published in | GFF Vol. 142; no. 2; pp. 96 - 99 |
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Main Authors | , , , |
Format | Journal Article |
Language | English Norwegian |
Published |
Stockholm
Taylor & Francis
02.04.2020
Taylor & Francis Ltd Geological Society of Sweden |
Subjects | |
Online Access | Get full text |
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Summary: | 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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ISSN: | 1103-5897 2000-0863 2000-0863 |
DOI: | 10.1080/11035897.2019.1701547 |