The Geology and Structural Evolution of the Area Around the River Nile Between Atbara and Abidiya, Nile State, Sudan; Remote Sensing, Structural and Geochemical Approaches

الموضوعات

علوم بحتة وطبيعية

الملخص

The study area covers 8100 Kmz in north central Sudan bounded by Latitudes 17°50‘- 18° 30‘ N and Longitudes 33° 40‘ and 34° 30‘ E.Different digital image processing techniques applied to enhance the geological and structural details of the study area, using Landsat Thematic Mapper (TM) and Enhanced Thematic Mapper (ETM 7). The (ETM+) images show that the southeast trending structural lineaments of the Nakasib Suture Zone (N SZ) continue to the southeastern part of the Bayuda Desert north of Atbara.Geologically, the area is underlain by highly sheared maﬁc-ultramaﬁc rocks,volcano sedimentary sequences and supracrustal metasediments. All of the units are invaded by calc-alkaline and post to anorogenic intrusions. The maﬁc-ultramaﬁcmasses have all the features characteristic of ophiolite suits including layered cumulate, sheeted dolerite dykes, pillow lavas section and associated deep marine sediments, but are dismembered and recrystallized. The pillow lava sections have typical mid-oceanic ridge basalt geochemical signature as indicated by discrimination diagrams. The ophiolitic massifs identiﬁed in this work have been grouped into three complexes, namely Sotrebab, Qurun and El-Fadlan Complexes forming discontinues NE-SW trending belt that merges with theophiolitic fragments along the Nakasib Suture Zone. Therefore, these complexes may represent the southwestern continuation of the Nakasib Suture Zone.The volcano sedimentary sequence is comprised of turbidities besides massive volcanic ﬂows which have been recrystallized in the condition of the green schistfacies of regional metamorphism. They have predominantly tholeiitic to mild calc-alkaline geochemical afﬁnity, thus suggesting subduction related geotectonic setting.

روابط وملفات

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التعريف والنوع

رقم الوثيقة: f57f5ed9-be31-40af-a88d-26b44d07dacb
رقم العقد: 0
نوع الوسائط: Crawler
نوع المحتوى: الرسائل العلمية
صيغة المصدر: رسائل ماجيستير
نوع الملف: pdf text
أسماء الملفات: 63409_1.pdf

بيانات النشر

ألقاب المؤلفين: [{"name_ar":"E. M. Abdelrahman","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"F. Ahmed","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"عصام الدين علي محمد أحمد","title_ar":"اعداد","title_en":"Preparation"}]
اللغة: English

المصدر والدورية

اسم المصدر: The Geology and Structural Evolution of the Area Around the River Nile Between Atbara and Abidiya, Nile State, Sudan; Remote Sensing, Structural and Geochemical Approaches

المحتوى والصفحات

عدد الصفحات: 0

إشراف وإعداد

الإشراف: E. M. Abdelrahman, F. Ahmed
الإعداد: عصام الدين علي محمد أحمد

الاقتباسات الببليوغرافية

APA

E. M. Abdelrahman،F. Ahmed و عصام الدين علي محمد أحمد. (2005). The Geology and Structural Evolution of the Area Around the River Nile Between Atbara and Abidiya, Nile State, Sudan; Remote Sensing, Structural and Geochemical Approaches . أطروحة(رسائل ماجيستير). كلية العلوم والتقانة-جامعة النيلين. السودان.

MLA

E. M. Abdelrahman،F. Ahmed و عصام الدين علي محمد أحمد. The Geology and Structural Evolution of the Area Around the River Nile Between Atbara and Abidiya, Nile State, Sudan; Remote Sensing, Structural and Geochemical Approaches . 2005. كلية العلوم والتقانة-جامعة النيلين، رسائل ماجيستير.