Repository logo

Browsing by Subject "deposit exploitation system"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    The mining of igneous rocks – mining technology exemplified by the «ZALAS» Porphyry Mine
    (Wydawnictwa AGH, 2022) Kurek, Jan; Wydro, Tomasz
    The geological structure and rock resources of the region of Krakow are very diverse. This results from its location at the junction of three structural units as well as from the variety of geological processes that have taken place during their geological history. Devonian to Quaternary formations are visible on the surface, while the rocks found in boreholes are even older. Igneous rocks in the region of Małopolska (Lesser Poland) are concentrated in a rela- tively small area. The following rocks have been mined in the past: red porphyry in Miękinia, melaphyre in Regulice, porphyry in Orla. Currently active mines – quarries, which are engaged in continuous exploitation, include the «Zalas» Porphyry Mine in Zalas and the «Niedźwiedzia Góra» Diabase Mine in Tenczynek.