Kraški skalni relief v Qari in Beli puščavi (Zahodna puščava v Egiptu)

Avtorji

  • Martin Knez Research Centre of the Slovenian Academy of Sciences and Arts, Karst Research Institute, Slovenia
  • Tadej Slabe Research Centre of the Slovenian Academy of Sciences and Arts, Karst Research Institute, Slovenia
  • Magdy Torab Damanhour University, Faculty of Arts, Department of Geography, Abadia, Egypt
  • Noura Fayad Damanhour University, Faculty of Arts, Department of Geography, El Beheira, Egypt

DOI:

https://doi.org/10.3986/ac.v52i2-3.12796

Ključne besede:

carbonate rock, rock relief, complexometry, QaraOasis, White Desert (Farafra), Egypt

Povzetek

Kraški skalni relief tudi tokrat povedno razkriva način oblikovanja in razvoj kraškega površja ter jam. Najstarejše sledi so skalne oblike starih kraških jam, ki so se oblikovale v povsem drugačnih podnebnih razmerah od današnjih v pleistocenu in so že dlje časa suhe. Danes je prevladujoč dejavnik oblikovanja skale na površju veter in zlasti v krasu Bele puščave pri Farafri se razvija celoten nabor vetrnih skalnih oblik, ki služi tudi za njihovo smiselno razbiranje in razvrščanje. V vadijih pri oazi Qari pa se oblikuje svojevrsten skalni relief, v katerem povsem prevladajo sledi pretakanja vode in raztapljanja skale pod peščeno naplavino. Padavin je malo, a izrazitejša količina v kratkem časovnem obdobju je dovolj za oblikovanje slabše obstojne kamnine. Skalne oblike, kakršne prevladujejo na stenah, pa sooblikujeta korozija in vetrna erozija. Na delih skalne površine, ki jih dosega voda, nastane skorja. Gole površine pa dolbe veter. Na mestih, kjer se skorja odlušči, veter izdolbe vdolbine.

Prenosi

Podatki o prenosih še niso na voljo.

Literatura

Al Farraj Al Ketbi, A., Slabe, T., Knez, M., Gabrovšek, F., Mulec, J., Petrič, M., Zupan

Hajna, N., 2014. Karst in Ras Al-Khaimah, northern United Arab Emirates. Acta carsologica, 43(1): 23-41.

Audra, P., Bosák, P., Gázquez, F., Cailhol, D., Skála, R., Lisá, L., Jonášová, Š., Frumkin, A.,

Knez, M., Slabe, T., Zupan Hajna, N., Al Farraj Al Ketbi, A., 2017. Bat urea-derived minerals in arid environment: first identification of allantoin, C4H6N4O3, in Kahf Kharrat Najem Cave, United Arab Emirates. International journal of speleology, 46(1): 81-92.

Catuneanu, O., Khalifa, M.A., Wanas, H.A., 2006. Sequence stratigraphy of the Lower

Cenomanian Baharia Formation, Baharia Oasis, Western Desert, Egypt. Sedimentary Geology, 190: 121-137.

Coy H. Squires, C., 1986. Geological map of Egypt, NH 35 SW Siwa, 1:500.000. The

Egyptian General Petroleum Corporation, Cairo.

Coy H. Squires, C., 1987. Geological map of Egypt, Ng 35 NE Farafra, 1:500.000. The

Egyptian General Petroleum Corporation, Cairo.

El Aref, M.M., Hammed, M., Salama, A., 2017. Geomorphological Classification and

Zonation of the Surface Karst Landforms of Bahariya-Farafra Region Western Desert, Egypt. International Journal of Science and Research V 6, I 5: 956-965.

El Awady, M.A.M., Abd-Elwahed, A.G., Garamoon, H.K., El Malky, M.G., 2018.

Geochemical Assessment of the Quaternary Soil in Siwa Oasis, Western Desert, Egypt. Journal of Environmental Sciences, 43(2): 25-45.

El Marsafawy, S., Bakr, N., Elbana, T., El Ramady, H., 2019. Climate. https://www.

researchgate.net/publication/327141448.DOI: 10.1007/978-3-319-95516-2_5

El Sisi, Z., Hassouba, M., Oldani, M.J., Dolson, J.C., 2002. Ancient Oil, New Energy.

International Conference and Exhibition, Field Trip No. 8. British Petrol, Shell, Cairo, 66 p.

Engelhardt, W., Füchtbauer, H., Müller, G.,1964. Sediment-Petrologie, Methoden der

Sediment-Untersuchung, Teil 1.- E. Schweizerbart´sche Verlagsbuchhandlung

(Nägele u. Obermiller), pp. 303, Stuttgart. http://onlinelibrary.wiley.com/

doi/10.1002/iroh.19650500317/abstract

Evamy, B.D., Sherman, D.J., 1962. The application of chemical staining techniques to the

study of diagenesis of limestones. Proc. Geol. Soc. London, 1599, 102-103.

Farouk, S., City, N., Abdel Ghany Khalifa, M., El Kom, S., 2010. Facies tracts and sequence

development of the Middle Eocene – Middle Miocene successions of the southwestern Qattara Depression, northern Western Desert, Egypt Freiberger Forschungshefte, C 536(18): 195-215.

Gindy, A.R., El Askary, M.A., 1969. Stratigraphy, structure, and origin of the Siwa Depression, Western Desert of Egypt. AAPG Bull, 53: 603-625.

Google Maps, 2023. Map.- [Online] Available from: https://www.google.com/maps/place/

Cara,+%D9%82%D8%B3%D9%85+%D8%B3%D9%8A%D8%AF%D9%89+%D8%A8%D8%B1%D8%A7%D9%86%D9%89%D8%8C+Matrouh+Governorate,+Egipt%E2%80%AD/@29.5975752,26.4774076,11087m/data=!3m1!1e3!4m6!3m5!1s0x14645414fff33539:0xd1966d35fa59d060!8m2!3d29.6057611!4d26.5019976!16s%2Fm%2F0gttcbl?entry=ttu [Accessed June 15th, 2023].

Hermina, M., 1990. The surroundings of Kharga, Dakhla and Farafra oases. In: Said, R.

(Ed.), The Geology of Egypt. Egyptian General Petroleum Corporation, Cairo,

pp. 259-292.

https://www.meteoblue.com/en/weather/week/jaz%c4%abrat-umm-al%e1%b8%a8aym%c4%

t-a%c5%9f-%c5%9eagh%c4%abrah_egypt_347034

Issawi, B., 1972. Review of Upper Cretaceous-Lower Tertiary stratigraphy in central and

southern Egypt. Bulletin American Association Petroleum Geologists, 56:1448-1463.

Khalil, M., Elharairey, M., Atta, E., Aboelkhair, H., 2021. Evaluation of salts in salt pans, Siwa Oasis, Egypt Arabian Journal of Geosciences, 14(770) 2-11.

https://doi.org/10.1007/s12517-021-07060-z

Munsell Rock-Color Chart, 2009. Geological Rock-Color Chart. Munsell Color, Grand

Rapids, MI, USA.

Plyusnina, E.E., Emad S., Sallam, D., Ruban, A., 2016. Geological heritage of the

Bahariya and Farafra oases, the central Western Desert, Egypt. Journal of African Earth Sciences, 116: 151-159.

Said, R., 1990. The geology of Egypt. A.A. Balkema, Rotterdam, 734 pp.

Slaughter, B.H., Thurmond, J.T., 1974. A lower cenomanian (Cretaceous) Ichthyofauna

from the bahariya formation of Egypt. Annals of the Geological Survey of Egypt, 4: 25-40.

Stromer, E., 1936. Ergebnisse der Forschungsreisen Prof. E. Stromers in den Wusten

Agyptens. VII. Bahariya Kessel und Stufe mit deren Fauna und flora. Eine

erganzende usamenfassung. Abhandl. Konig. Bayer. Akad. Wiss. Math. Phys. Kl.

(3): 259-292.

Thabet, M.A., Abdel Hady, A.A., Abd El Kawy, W.A.M., EL-Nahry, A.H., 2013. Study of

land resources at Siwa oasis using remote sensing and GIS techniques. Journal of Soil Sciences and Agricultural Engineering, 4(8): 757-773.

Zaki, A., Abdel-Fattah, M., Kora, A., Salah, N.A., 2013. Facies architecture and depositional

development of Middle Miocene carbonate strata at Siwa Oasis, Northwestern Egypt. Facies. International Journal of Paleontology, Sedimentology and Geology, 59: 505–528. DOI 10.1007/s10347-012-0332-2

Prenosi

Objavljeno

2023-12-13

Kako citirati

Knez, M., Slabe, T., Torab, M., & Fayad, N. (2023). Kraški skalni relief v Qari in Beli puščavi (Zahodna puščava v Egiptu). Acta Carsologica, 52(2-3). https://doi.org/10.3986/ac.v52i2-3.12796

Številka

Letn. 52 Št. 2-3 (2023)

Rubrike

Original papers

Licenca

Creative Commons licenca

To delo je licencirano pod Creative Commons Priznanje avtorstva 4.0 mednarodno licenco.

Avtorji jamčijo, da je delo njihova avtorska stvaritev, da v njem niso kršene avtorske pravice tretjih oseb ali kake druge pravice. V primeru zahtevkov tretjih oseb se avtorji zavezujejo, da bodo varovali interese založnika ter da bodo povrnili morebitno škodo.

Podrobneje v rubriki: Prispevki