 THE RIES IMPACTITES
Impact melt rock; from the small disused Polsingen quarry. Formerly, this melt rock was considered a suevite. It could be shown however that actually, the matrix is a crystallized impact melt. Different from this and by definition, a suevite has a clastic matrix.
Cut face (13 cm across) of the Polsingen impact melt rock.
Cut face (17 cm across) of a suevite breccia (Aumühle quarry).
Suevite: Zipplingen variety. Width of the sample is 16 cm.
Aerodynamically shaped glass "bomb" separated from the suevite matrix by weathering. Heerhof fields.
Bunte Breccia ejecta, Ronheim quarry. The block is composed mainly of Jurassic and Triassic claystones, fractured limestone concretions, and Malmian limestone fragments. The blown-up image (below) shows a wooden component transformed partly to charcoal and partly to petrified wood (greyish). Car key length 7 cm.
 DETAIL
Monomictic movement breccia: grit-brecciated granite from Limberg quarry near Unterwilflingen (see Outcrops).
Monomictic movement breccia: grit-brecciated Malmian limestone from Iggenhausen quarry (see Outcrops).
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