Rock landforms that reflect differential relief development in the north-eastern sector of the Rychlebské hory and the adjacent area of Žulovská pahorkatina (SE Sudeten Mts, Czech Republic)

Title:

Rock landforms that reflect differential relief development in the north-eastern sector of the Rychlebské hory and the adjacent area of Žulovská pahorkatina (SE Sudeten Mts, Czech Republic)

Creator:

Štěpančíková, Petra and Rowberry, Matt

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:76d5c976-ffc4-4e76-bd31-63b0030dc6a4
uuid:76d5c976-ffc4-4e76-bd31-63b0030dc6a4
issn:1214-9705

Subject:

Geologie. Meteorologie. Klimatologie, geodynamika, geodynamics, Česká vysočina (pohoří), Krkonošsko-jesenická soustava (pohoří), Bohemian massif, Sudety mountains, rock landforms, pre-glacial, frost-riven cliffs, cryoplanation surfaces, blockfields, etch surfaces, residual hills, tors, 7, and 551

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

Rock landforms in the Sokolský hřbet (ridge) and the adjacent Žulovská pahorkatina (hilly land) have been analysed through detailed field mapping at a scale of 1:10,000; subsequently the spatial distribution of these features was analysed using a DEM within a GIS framework. Particular attention was focused upon the shape of the rock landforms, their arrangement, the aspect of their walls, and their topographic position within the two adjacent geomorphological units. Rock landforms in the Sokolský hřbet include frost-riven cliffs, isolated residual rockforms, and blockfields in metamorphic rocks. In contrast, rock landforms in the Žulovská pahorkatina include rock steps and numerous tors exposed from the basal weathering surface. The Sokolský hřbet has been interpreted as a neotectonically uplifted mountainous region; the rock landforms described here are thought to have formed under periglacial conditions during cold periods in the Pleistocene, whilst the extensive granitoid block accumulations developed on marginal fault scarps are thought to result from the exposure of intensively disintegrated rocks due to uplift. Žulovská pahorkatina has been interpreted as a remodelled stripped etch surface, which has been twice glaciated during the Middle Pleistocene. The rock landforms in both units appear to be structurally and lithologically controlled; moreover, various shapes of granite rock landforms are controlled by various types of jointing and parting. The clear differences recognised in both the rock landforms and overall morphology reflects the considerable disparity associated with relief development between two adjacent morphostructural units; such variability provides evidence for a long polygenetic history within the entire study area., Petra Štěpančíková and Matt Rowberry., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Acta geodynamica et geomaterialia : | 2008 Volume:5 | Number:3 (151)

Harvested from:

CDK

Metadata only:

false