Opis

• Tytuł:
  Braided-river and hyperconcentrated-flow deposits from the Carboniferous of the Lublin Basin (SE Poland) – a sedimentological study of core data
• Twórca:
  Waksmundzka, Maria I.
• Opis:
  Fining-upwards cyclothems found in five boreholes in the Carboniferous (Lower Bashkirian) of the Lublin Basinwere analysed sedimentologically. It was established that the cyclothems represent fluvial deposits, and the lithofacies were grouped into lithofacies associations. Most lithofacies associations represent three types of sand-bed braided rivers: (1) high-energy, (2) deep and (3) distal sheetflood-affected. Other associations represent hyperconcentrated flows. Both coarse-grained (type I) and fine-grained (types IIa and IIb) occur among the fining-upward cyclothems. The formation of most thick cyclothems was related mainly to allocyclic factors, i.e. a decrease in the river’s gradient. The thickest fining-upward cyclothems are characteristic of hyperconcentrated flows and braided-river channels. The aggradation ratios were commonly high. During the early Namurian C and early Westphalian A (Early Bashkirian), the eastern part of the Lublin Basin was located close to the source area. The sedimentary succession developed due to a transition from high-energy braidedrivers and hyperconcentrated flows to lower-energy braided rivers, controlled by a rise of the regional base level.
• Dostępność obiektu:
  Dostęp otwarty
• Prawa:
  Prawa autorskie (c) 2012 Maria I. Waksmundzka
• Data:
  2012.11.20
• Typ:
  info:eu-repo/semantics/article;
  info:eu-repo/semantics/publishedVersion;
  Research papers
• Język:
  angielski
• Źródło:
  Geologos; Vol. 18 No. 3 (2012); 135-161;
  Geologos; Tom 18 Nr 3 (2012); 135-161;
  2080-6574;
  1426-8981
• Format:
  application/pdf
• Wydawca:
  Adam Mickiewicz University Poznan
• Relacja: http://pressto.amu.edu.pl/index.php/logos/article/view/v10118-012-0008-y/30344
• Temat i słowa kluczowe:
  braided rivers;
  hyperconcentrated flows;
  fining-upward cyclothems;
  Lublin Basin;
  Carboniferous
• Identyfikator: http://pressto.amu.edu.pl/index.php/logos/article/view/v10118-012-0008-y
• Dostawca danych:
  Platforma Otwartych Czasopism Naukowych UAM
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