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Browsing by Subject "faults and fractures"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Aktywność uskoków w Dolinie Rio Colca w rejonie Pinchollo-Maca, Andy Środkowe, południowe Peru
    (Wydawnictwa AGH, 2008) Żaba, Jerzy; Małolepszy, Zbigniew
    Fault/fracture network within Mesozoic and Quaternary formations has been studied in Rio Colca Valley in Pinchollo - Lari - Maca area (Peruvian Andes). The results show structural framework of the Rio Colca Valley based on nearly all tectonic discontinuities observed in the area, mostly on WNW-ESE and NE-SW faults, and on few W-E faults. Displacements of Mesozoic, Miocene and Quaternary formations observed on nearly all faults in the study area provide evidence for recent tectonic activity. Most of the faults in the Mesozoic bedrock continue in Quaternary colluvial deposits. Recent faulting led to development of a system of distinct, primary scarps and land cracks on the surface, which have not been eroded yet.