Furongian (upper Cambrian) biostratigraphy and trilobites of the Håslov-1 drill core, Scania, S. Sweden
Titel:
Furongian (upper Cambrian) biostratigraphy and trilobites of the Håslov-1 drill core, Scania, S. Sweden
Auteur:
Terfelt, Fredrik Ahlberg, Per Eriksson, Mats E. Clarkson, Euan N. K.
Verschenen in:
GFF
Paginering:
Jaargang 127 (2005) nr. 3 pagina's 195-203
Jaar:
2005-09-01
Inhoud:
A drilling made in 1972 at Håslov, Scania, southern Sweden, penetrated a 2572 m thick succession of Phanerozoic strata. The only cored parts of the succession derive from the Upper Ordovician and the Furongian (upper Cambrian) series. Merely the uppermost part of the Furongian was recovered, comprising eight metres of Alum Shale with limestone concretions. Nine species and subspecies of trilobites are identified and their succession is used for subdividing the core into the Peltura scarabaeoides Zone, comprising the Parabolina lobata and the Peltura paradoxa subzones, and the Acerocare Zone, comprising the Peltura transiens Subzone. The conodont Cordylodus proavus? was found in the uppermost part of the core. The faunal succession is interrupted by conspicuous unfossiliferous intervals; the most extensive one measuring 3.39 m. Approximately coeval barren intervals have been recorded from other localities in Scania. Although the ecological significance of these intervals remains to be evaluated, it can be concluded that they are a regional feature in the Furongian of Scania.