Podrobnosti záznamu

    Indentation pits: a product of incipient slip on joints with a mesotopography
    Engelder, Terry
    Lexa, Ondrej
    Schulmann, Karel
Typ dokumentu
    část monografie (kapitola)
Zdrojový dokument - monografie
    The Initiation, Propagation, and Arrest of Joints and Other Fractures
Výraz tezauru
    incipient slip
    Indentation pits
    Melechov massif
Klíčové slovo
Abstrakt (anglicky)
   The mechanism for structural damage during incipient slip on joints within the Melechov Granite, Czech Republic, changes with the misalignment of the joint's mesotopography, largely a plumose surface morphology. Prior to slip, the joint surfaces are well mated so that contact area is organized on a microscopic scale. During the first phase of slip, diffusion-mass transfer is the active deformation mechanism between the sliding surfaces of the joints, as indicated by the extensive growth of crystal-fibre lineations characteristic of slickenside surfaces. After slip of the order of 1 cm or more, the mesotopography becomes mismatched and the contact area is reorganized to form indentation pits aligned on the ridges of hackle plumes. Indentation pits, that are testimony to a brittle process, are generated by the excavation of Hertzian ring cracks that propagate under contact loading of a brittle substrate.
    UK Praha, Přírodovědecká fakulta
Kód přispěvatele
    UK, PřF
Zdrojový formát
Datum importu
    8. 8. 2012