Temat: Abu Rowash - Prolib Integro

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Tytuł:: Mineralogy of Abu Rowash pyramid : Egypt
Autorzy:: Pawlikowski, M.
Rafalska-Lasocha, A.
Strzelczyk, J.
Tematy:: Abu Rowash
Egipt
piramidy
mineralogia
Egypt
pyramid
mineralogy; Pokaż więcej
Wydawca:: nakł. Maciej Pawlikowski
Powiązania:: https://bibliotekanauki.pl/articles/343887.pdf Link otwiera się w nowym oknie
Opis:: Field, microscopic and X-ray investigation of blocks of pyramid constructed Abu Rowash were performed. Investigation showed the pyramid is constructed on specially prepared hill where slopes are cut in form of steeps and blocks constitute only the cover. Mineralogy and petrograpgy as well as X-ray examination confirmed the use of gypsum mortar for fixation of blocks. Moreover examination document that blocks used for pyramid construction are of other structure and texture than limestones constituting the core of pyramid.
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Patyna na skałach podłoża oraz blokach piramid w Giza i Abu Roasz, Egipt
Patina present on the base rocks and blocks of the pyramids from Giza and Abu Rowash, Egypt
Autorzy:: Zalewski, Franc
Tematy:: mineralogical research
Abu Rowash
Egypt
Giza
meteorite crater; Pokaż więcej
Wydawca:: Polskie Towarzystwo Meteorytowe
Powiązania:: https://bibliotekanauki.pl/articles/1032699.pdf Link otwiera się w nowym oknie
Opis:: The hill of Abu Rowash is situated on the edge of the Western Desert at the southern end of the Nile Delta about fifteen kilometers North West from Cairo where a cone-shaped pit of roughly is located. In the central part of the area, the measured diameter of the structure is up to 30 meters and the deep is up to 15 meters, respectively. Both the size and the shape of the object could indicated its impact origin. The samples of calcareous rocks which were collected from the central part of the crater and from the base have been examined both, in the University of Science and Technology in Cracow and the Jagiellonian University laboratories. Analyzed rock samples were classified as an organogenic micrite-sparite limestone. Some clasts commonly represented by shells from the inner walls of the crater, reflect traces of a shock wave. The another fossilized shells which are presented in the epicentral part of the crater has dark, macroscopic well-observed inclusions. The surrounding rocks of the crater have numerous fractures in the less metamorphosed layers. The border zone observed in thin sections is developed as an amorphous layer. The SEM-EDS analysis affirmed that the transparent coating is carbon (C) which is separated from the limestone by a thin layer of sulfates. A more detailed analysis of the sulfates between the calcitedolomite rock and the layer of carbon revealed the presence of the mettalic iron. The results of the investigation confirm the hypothesis about the craters being formed as a result of an impact by some extraterrestrial matter. Patina present on the rock was probably formed during the high temperature process. The above conditions could be a result of the impact of meteorite, which contained metallic elements and high amounts of graphite.
Dostawca treści:: Biblioteka Nauki

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