Repository logo

Browsing by Subject "egzotyk"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Debryty kohezyjne warstw istebniańskich (senon górny - paleocen) na zachód od Skawy
    (Wydawnictwa AGH, 2005) Strzeboński, Piotr Andrzej
    Cohesive debrites of the Istebna Beds occur within the western part of the Silesian Unit of the Outer Flysch Carpathians. The lithofacies described represents siliciclastic deposits consisting of mud-sandy matrix and scattered, psephite-size clasts. The cohesive debrites originated from sediment gravity flows that were generated on the slope of sedimentary basin by mass-movements and were deposed as aprons by submarine, cohesive debris flows. The highest content of the cohesive debrites (12% of the succession thickness) has been recorded within the Istebna Beds of the Silesian Beskid Mts, the medium in the Beskid Mały Mts (7%) and the lowest within the Moravian Beskid Mts (2%). Most frequently the lithofacies presented occurs within the Lower Istebna Sandstones, while the cohesive debrites with the biggest lithoclasts occur within the top part of the Lower Istebna Shales. The exotic material with dominating crystalline rocks, mostly gneisses, schists and granitoids, makes up 25% of the described deposits (exotic cohesive debrites). Various types of limestones prevail among much rarer clasts of sedimentary rocks and the amount of the limestones distinctly increases going to the east.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Egzotyki strefy krynickiej (płaszczowina magurska) i ich znaczenie paleogeograficzne
    (Wydawnictwa AGH, 2006) Oszczypko, Nestor; Oszczypko-Clowes, Marta; Salata, Dorota
    Sedimentary beds containing exotic pebbles occur in the Krynica Subunit. They occur mainly in deposits of the Szczawnica, Zarzecze and Magura fms. Pelagic limestones (Tithonian- -Neocomian) and lithothamnium limestones (Palaeogene) were recognized among sedimentary rocks of the Krynica Zone. Volcanites, rarely granitoides as well as schists, gneisses, quartzites and cataclasites were found in the group of crystalline exotic pebbles. The exotic pebbles from the Eocene--Oligocene beds of the Krynica Zone differ from those found in the Jarmuta Fm (Maastrichtian--Palaeocene) of the Grajcarek Unit. The exotic pebbles of the Krynica Subunit do not have direct connection with the Pieniny Klippen Belt, whereas crystalline rocks derived from a continental terrain. The provenance of these rocks could be connected with Eocene exhumation of the Magura Basin basement or with the Inner Carpathian realm (Inner Dacides and/or Tisza terrain).