Sedimentological record of changing hydrodynamic conditions in the upper Tremadoc deposits of the Holy Cross Mountains, Poland

Authors

  • Wiesław Trela Holy Cross Mts. Branch, Polish Geological Institute, Zgoda 21, PL-25-953 Kielce

Keywords:

Holy Cross Mts., Ordovician, Late Tremadoc, chalcedonites, transgression, storm deposits

Abstract

In the upper Tremadoc, in the Kielce region of the Holy Cross Mountains, siltstones and fine-grained sandstones are interbedded with chalcedonites and claystones. The deposits were probably laid down when the late Tremadoc transgression reached its maximum.  Storm currents influenced deposition at times while, during calm periods, sedimentation of chalcedonites, clayey cherts and clays took place. Weak bottom currents affected the deposition of siliceous layers. The deposits accumulated on a distal shelf. 

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Published

2012-11-29

Issue

Vol. 45 No. 2 (2001)

Section

Articles

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