Wanapitei (Canada) suevite
Fig. 1. Suevite, Wanapitei (Canada) impact structure. Red variety.
Lake Mien (Sweden) suevite
Fig. 3. Suevite, Lake Mien (Sweden) impact structure. Lake Mien suevites, like the Wanapitei suevites, are occurring in the form of glacial erratic blocks only.
Lappajärvi (Finland) suevite
Sääksjärvi (Finland) suevite
Dellen (Sweden) suevite
Fig. 6. Suevite, Dellen (Sweden) impact structure. Also the Dellen suevite is found as boulders only.
Siljan (Sweden) suevites
Kara (Russia) suevite
Rochechouart (France) suevites
Fig. 10. Suevite, Rochechouart (France) impact structure; Chassenon green variety. The greenish suevite is exposed in the environs of the village of Chassenon. Here, major parts of a Gallic-Roman site (Cassinomagus) have been constructed (Fig. 11) using the suevite breccias from several ancient quarries.
Ries crater (Germany) suevites
Fig. 16. Massive suevite in the Aumühle quarry, Ries (Germany) impact structure. The Aumühle suevite is exploited for the making of a special cement. In ancient centuries, the Ries suevite was a highly esteemed building stone which over time has strongly suffered from weathering, however.
Fig. 18. Suevite, Ries (Germany) impact structure; Zipplingen variety. Due to the mixed, sedimentary/crystalline target of the Ries crater, the suevites in part show notably varying composition. The Zipplingen suevite shown here is especially rich in sedimentary clasts.
Fig. 18-1. Suevite, Ries crater; cut face exhibiting black melt glass inclusions (“glass bombs”). The whitish particle in the right-hand specimen glass bomb is a gneiss fragment.
Unknown impact (Canada), erratic suevite boulder
Fig. 19. Suevite slice cut from a boulder that was found in Canada roughly 250 km east of the Sudbury impact structure. Making a relation to a specific impact structure remains to be done. Photomicrographs of the shocked rock (with indication of a mixed, sedimentary/crystalline, target) are shown in Figs. 20 – 22. Sample courtesy Robert Szep.
Fig. 21. Suevite from Fig. 19; quartz grain displaying three sets of decorated planar deformation features (PDFs); xx polarizers.