The Pal Grande Formation consists mainly of gray mudstone and wackestone rich in fossils. The original bedding is often concealed by pressure solution and/or burrowing giving to the limestone a characteristic pseudo-nodular look. The reddish colour, when present, is usually limited to the lower part of the formation. At places, in the basal part of the formation, interlayered cm to dm calciruditic and calcarenitic (grainstone) intervals are present, as well as ruditic (intraclast breccia) levels. The ruditic beds can reach thickness of 1-2 m. Black shale, intepreted as equivalent to the Hangenberg Shale (Hangenberg Event) are present only at two localities (Kronhof Graben and Plan di Zermula) (Perri & Spalletta, 2001).
Spalletta, C., Perri, M., Pondrelli, M., Corradini, C., Mossoni, A., Schönlaub, H. (2015). Pal Grande Formation. ABHANDLUNGEN DER GEOLOGISCHEN BUNDESANSTALT, 69, 137-140.
Pal Grande Formation
SPALLETTA, CLAUDIA;PERRI, MARIA CRISTINA;
2015
Abstract
The Pal Grande Formation consists mainly of gray mudstone and wackestone rich in fossils. The original bedding is often concealed by pressure solution and/or burrowing giving to the limestone a characteristic pseudo-nodular look. The reddish colour, when present, is usually limited to the lower part of the formation. At places, in the basal part of the formation, interlayered cm to dm calciruditic and calcarenitic (grainstone) intervals are present, as well as ruditic (intraclast breccia) levels. The ruditic beds can reach thickness of 1-2 m. Black shale, intepreted as equivalent to the Hangenberg Shale (Hangenberg Event) are present only at two localities (Kronhof Graben and Plan di Zermula) (Perri & Spalletta, 2001).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
