The sudetic marginal fault: A young morphophotectonic feature at the NE margin of the bohemian massif, Central Europe
Janusz Badura , Witold Zuchiewicz , Petra Štěpančiková , Bogusław Przybylski , Bernard Kontny , Stefan Cacoń
AbstractWe analysed a nearly 133-km-long portion of the Sudetic Marginal Fault (SMF) in Poland (99.7 km) and the Czech Republic(33.8 km), comprised between Złotoryja in the NW and Jesenik in the SE. The fault trace has been subdivided into fifteen segments showing different orientation (N29°W to N56°W, and even N111°W SE of Złoty Stok), geological setting, length(8.8-22.9 km in Poland and 1.4-7.5 km in the Czech Republic), and height of the fault- and fault-line scarps (5-75 m to 200-360 m). Orientation of the entire fault trace approaches N41°W, and the mountain front sinuosity amounts to 1.051. Individualfault segments bear a flight of two to five tiers of triangular facets, showing differentiated state of preservation and degree of erosional remodelling. The highest triangular facets are confined to Rychlebské (Złote) and Sowie Mts. This tiering points toat least five episodes of uplift of the SMF footwall, starting shortly after 31 Ma, i.e. after basalts of the Sichów Hills area were displaced by the fault, and most probably postdating 7-5 Ma time interval, during which rapid cooling and exhumation of theSowie Góry Mts. massif took place. Morphometric parameters of 244 small catchment areas of streams that dissect thefault scarp include, i.a. elongation, relief, and average slope of individual catchment areas, together with values of the valley floorwidth to valley height ratios. These figures point to moderate tectonic activity of the SMF and allow us to conclude about Quaternary uplift, particularly important in the Sowie and Rychlebské (Złote) segments.
|Journal series||Acta Geodynamica et Geomaterialia, ISSN 1214-9705, e-ISSN 2336-4351, (A 20 pkt)|
|Publication size in sheets||1.1|
|Keywords in English||Digital elevation models; Drainage basin parameters; Morphotectonics; NECzech Republic; Sudetic marginal fault; SW Poland|
|ASJC Classification||; ;|
|Publication indicators||= 29; = 31; : 2007 = 0.468; : 2009 = 0.275 (2) - 2013=0.604 (5)|
|Citation count*||42 (2020-06-13)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.