Origin and Depositional Environments of Abu Shaybah Formation, Ghanimah Area, NW of Libya

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

Abu-Shaybah Formation is located on the coastal of the Meditrranean sea South of Ghanimah North West of Libya, betwe Tripoli and Al Khumes, about 100 km East of Tripoli. It lies on the eastern d of Jabel Nafusa flank. Abu Shaybah Formation Ghanimah ea of Late Triasic age, consists of sandstone. The sedimty structure in the lower most pt from studied outcrops reflect NW paleocurrt direction indicating that Jabel Nafusa uplift poorly effect the study ea. The upper pt of studied succession changing in pallaeocurrt dirction to NE due to Jabel Nafusa uplifting. The extreme changing of paleocurrt direction and paleoslope direction to East due to continuous increase in Jabel Nafusa uplift, direction of vertical joints in Wadi Qirrim prested from NW to SE dirction. The rocks of Abu Shaybah Formation analyzed using differnt kinds of technique, Polrized Microscpe, XRF, SEM techniques. The study of sedimty texture (grain size, roundness, sorting, and sphiricity) and sedimty structures showed that Abu Shaybah Formation outcrops deposited in response to two fining upword cycles, formed mainly in Braided Stream Rivers with some effects of meandering. The sequces of Abu Shaybah Formation outcrops that exposed in Wadi Qirrim have be idtified on many types of sedimty facies associated with giv sedimty stucture as, Plan cross bedding, Convolute bedding, Trouph cross bedding, Ripple bedding, Shrinkage cracks, Plant rootlets, Concretions, Unconformity, Channels, Massive bedding, Laminated bedding, and the results which located on the grain size of qutz also loacted on the grain size of heavy minerals like tormaline, zircon and reutile.

روابط وملفات

التعريف والنوع

رقم الوثيقة

01dd3c55-373b-430b-87a9-ad105d57b847

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1644075_1.pdf

بيانات النشر

ألقاب المؤلفين

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اللغة

English

المصدر والدورية

اسم المصدر

Origin and Depositional Environments of Abu Shaybah Formation, Ghanimah Area, NW of Libya

المحتوى والصفحات

عدد الصفحات

0

كلمات الباحثين

Abu Shaybah Formation, Ghanimah Area, NW of Libya, Origin and Depositional Environments

إشراف وإعداد

الإشراف

مختار الاشهب, هيثم أحمد

الإعداد

سليم معمر قجوم

الاقتباسات الببليوغرافية