Zusammenfassung
Der detaillierte petrographische Charakter von känozoischen vulkanischen Gesteinen aus Ägypten wird dargestellt. Zwei petrographische Provinzen sind identifiziert worden: die Abu Zaabal-Abu Rawash-Qatrani-Provinz und die Cairo-Suez-El-Bahnasa-Tahna-Provinz. Die Gesteine der ersten sind doleritische Basalte, während die der zweiten typische Basalte sind. Die Verwitterung der doleritischen Basalte, insbesondere in Steinbrüchen beobachtet, wird ebenfalls dargestellt.
Abstract
The detailed petrographical characters of Cenozoic volcanic rocks of Egypt are given. Two pétrographic provinces have been identified: Abu Zaabal-Abu Rawash-Qatrani province and Cairo-Suez-El-Bahnasa-Tahna province. The rocks of the first one are doleritic basalts, while those of the second one are typical basalts. The weathering of the doleritic basalt, as especially observed in quarries, was also studied.
Résumé
Le caractère détaillé pétrographique de roches volcaniques cénozoiques d'Egypte est démontré. On a identifié deux provinces pétrographiques: la province Abu Zaabal-Abu Rawash-Qatrani et la province Caire-Suez-El-Bahnasa-Tahna. Les roches de la première sont des basaltes doléritiques, tandis que celles de la deuxième sont des basaltes typiques. L'altération des basaltes doléritiques, en particulier observée dans des carrières, a aussi été étudiée.
Краткое содержание
Были исследованы кай нозойские вулканиче ские породы Египта. На основании этих иссле дований установили д ве петрографические пр овинции: Одна прослеживается в Abu Zaabal-Abu Rawash- Qatrani, a другая-Cairo-Suez-EI Bahnasa-Tana. Породы первой зоны состоят из долеритов ых базальтов, а второй — п редставлены типичны ми базальтами. Некоторы е из этих пород подвергли сь уже процессам выве тривания.
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Dedicated to Professor Dr. A.Rittmann on the occasion of his 75th birthday
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El-Hinnawi, E.E., Maksoud, M.A.A. Petrography of Cenozoic volcanic rocks of Egypt (UAR). Geol Rundsch 57, 879–890 (1968). https://doi.org/10.1007/BF01845370
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DOI: https://doi.org/10.1007/BF01845370