Petrology and geochemistry of multiphase post-granitic dikes: A case study from the Gabal Serbal area, Southwestern Sinai, Egypt

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Tarih

2022

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

De Gruyter Open Ltd

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

Variable single and/or swarms of post-granitic dikes are widespread at Gabal Serbal, Southwestern Sinai, Egypt. The present article aims to identify and discriminate these multiphase dikes through detailed geological, petrographical, and geochemical examinations. These dikes are classified into two subphases: (1) acidic dikes (porphyritic dacite, microgranite, granophyre, and alkaline granophyre dikes); and (2) basic dikes (basalt and dolerite dikes). They range from vertical or steeply inclined bodies, 0.5-15 m wide, pink to black color, and NE-SW to N-S directions. Acidic dikes with different mineralogical constituents have medium to high k-characters, originating from calc-alkaline magma and extruded in a volcanic arc environment. In contrast, basic dikes have medium k-characters, originating from tholeiitic magma and developing within a plate environment. Basic dikes are enriched with opaque minerals, where the basaltic dike contains iron oxides (magnetite and hematite), such as apatite in addition to copper minerals. Dolerite dike comprises magnetite, titanomagnetite, and pyrite. © 2022 Mohamed S. Kamar et al., published by De Gruyter.

Açıklama

Anahtar Kelimeler

Dikes, Egypt, Gabal Serbal, Geochemistry, Sinai

Kaynak

Open Chemistry

WoS Q Değeri

Q3

Scopus Q Değeri

Q2

Cilt

20

Sayı

1

Künye

Kamar, M. S., Salem, I. A., El-Aassy, I. E., El-Sayed, A. A., Awad, H. A., Tekin, H. O., ... & El Saeed, R. L. (2022). Petrology and geochemistry of multiphase post-granitic dikes: A case study from the Gabal Serbal area, Southwestern Sinai, Egypt. Open Chemistry, 20(1), 169-181.