Fig. 1 | Nature Communications

Fig. 1

From: Timing and origin of natural gas accumulation in the Siljan impact structure, Sweden

Fig. 1

Maps of the Siljan impact structure and study locations. a Map of Sweden with the Siljan area indicated. b Geological map of the Siljan impact structure with locations of the cored boreholes and the quarry sampled for mineral coatings indicated, along with the sedimentary units in the crater depression, towns, lakes (white) and roads (black lines). Gas compositions exist from boreholes VM2 and VM5 (located adjacent to VM2). Modified from ref. 68

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