Muhamad, H, Juhlin, C, Sopher, D, Lehnert, O, Arslan, A and Meinhold, G (2017) High-resolution seismic imaging of Paleozoic rocks in the Mora area, Siljan Ring structure, central Sweden. GFF, 139 (4). pp. 260-275. ISSN 1103-5897

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The Late Devonian Siljan Ring structure in Sweden is the largest known impact structure in Europe. The present-day structure comprises a central dome that is about 20–30 km in diameter, which is surrounded by a ring-shaped depression. In this study, we focus on the southwestern part of the Siljan Ring with the aim to map the structure of the Paleozoic sedimentary rocks. Four 2D high-resolution seismic lines with a total length of about 3 km were acquired in the Mora area. A three component eighty-unit land streamer, combined with wireless recorders, was used for data acquisition along with a weight drop source. Processing of the data shows that clear reflections are present, but results are less distinct where external noise was present during acquisition or the maximum source-receiver offset was too short. Petrophysical measurements on core samples, core log data and a density model along one line were used to guide the interpretation of the seismic sections. These data demonstrate that fault blocks are present in the study area and that the individual blocks have been affected differently by impact-related tectonics.

Item Type: Article
Additional Information: This is the accepted author manuscript (AAM). The final published version (version of record) will be available online via Taylor & Francis at - please refer to any applicable terms of use of the publisher.
Uncontrolled Keywords: Siljan Ring impact structure; Paleozoic rocks; Mora; seismic reflection
Subjects: G Geography. Anthropology. Recreation > GB Physical geography
Divisions: Faculty of Natural Sciences > School of Geography, Geology and the Environment
Depositing User: Symplectic
Date Deposited: 13 Oct 2017 14:02
Last Modified: 18 Mar 2019 16:52

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