32960 KB0 KB197420252025Fayad, Noura HamdyKnez, MartinSlabe, TadejTorab, Magdyštevilka:1letnik:54str. 11-37ISSN:0583-6050DOI:10.3986/ac.v54i1.14332COBISSID_HOST:246889987URN:URN:NBN:SI:doc-KYNKTD2JenSlovenska akademija znanosti in umetnostiActa carsologicacarbonate rockscomplexometrykarbonatne kamnineKeopsova piramida (Giza, Egipt)kompleksometrijaPyramid of Cheops (Giza, Egypt)rock reliefskalni reliefKarst rock weathering of the Great Pyramid of Giza| Zakrasevanje Keopsove piramide|The exposed stone blocks of soft carbonate rock, from which the pyramid is built, quickly develop a distinctive form and rock relief. The outer parts of the blocks are often undercut into overhangs. On their upper parts, a protective crust forms through rock dissolution and rapid recrystallization under the influence of occasional rain and seeping water, shielding the rock from wind erosion and dissolution. This crust, in turn, is dotted by small pits, whose bare surfaces remain exposed to wind erosion, allowing them to expand and grow deeper. In the lower sections, where the rock is fully exposed, wind erosion primarily carves out larger cups and channels. A thin crust may occasionally form over these sections, but tends to flake off quickly. This process suggests rapid karstification and the ongoing disintegration of the stone blocksIzpostavljeni skalni bloki mehke karbonatne kamnine, iz katerih je piramida, razmeroma hitro pridobijo značilno obliko in skalni relief. Na zunanjih delih so bloki največkrat previsno spodjedeni. Njihov zgornji del, ki ga občasno dosegata dež in polzeča voda, prekriva skorja, ki nastane z raztapljanjem kamnine in hitro rekristalizacijo ter skalo ščiti pred vetrom in šibkim raztapljanjem. Razčlenjen je z vdolbinicami, katerih površina je pogosto gola in zato izpostavljena vetrni eroziji, kar omogoča njihovo rast. V spodnjem delu, kjer je skala gola, v večini primerov povsem prevladujejo skalne oblike, ki jih dolbe vetrna erozija, torej večje vdolbine in žlebovi. Tanka skorja, ki občasno prekrije njihovo površino, se hitro lušči. Sklepamo na hitro zakrasevanje in razpadanje skalnih blokovTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaZRC SAZU