Geological interpretation of gravity data On a part at the western region of the hDam lake, South Egypt

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Geological interpretation of gravity data On a part at the western region of the hDam lake, South Egypt

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Title: Geological interpretation of gravity data On a part at the western region of the hDam lake, South Egypt
Author: Ibrahim, H. A. [حمزه احمد ابراهيم]
Abstract: The structural setting of the area was determined using the horizontal gradient of the gravitational field and the statistical analysis of its maximum trends. The gravitational field was resolved into its two components; residual and regional using the available software programs. The calculated residual field was used to determine the interfaces of shallow depths. The spectral analysis technique was also carried out to estimate depths to the buried causative discontinuities. 2.5 gravity modeling programs were made along some selected profiles to portray the configuration of the basement surface. The structural picture of the area, as revealed from the current study mainly shows a complicated pattern of many fault systems influenced the basement as well as the overlying thin sedimentary section. The regional field of the area was represented by a first-order trend surface. Based on the spectral, analysis interpretation, the depths to the top of basement rocks between 150 to 600m. These results contirnct the calculated models. The distribution of top of the basement rocks rasge range between 150 to 600 m. These results are cpnfirnd from the calculated models. The distribution of local uplifted and downfaulted basement blocks in the area may assist in accumulation of groundwater migrated from the High Dam lake throughtout an infensie. Also an intensive fractune pattern daminated in the sfudy area .تهدف هذه الدواسعة إلى تحديد عمق وهيئة سطح الركيزة المعقدة ( Basment Complex) وكذلك تقييم التراكيب الجيولوجية التحت سطحية في جزء من منطقة غرب بحيرة ناصر بناء) على تفسير شواذ البوجير التثاقلية ( Bouguer Gravity Anomalies) ، لذلك فقد استخدمتما طريقة التدوج الأفقي - Horizonfat Gradi ) ()رسع للمجال التثاقلي حيثما تم إجراء تحليل أحصائي لإتجاهات القيم العظمى لها للتعرف على الأتجاهات التكتونية الأساسية التي أثرت على هذه المنطقة المدروسة كجزء من المنطقة الجنوبية لمصر حيثما نوقشت الأجهادات المحتملة في نشأتها .
URI: http://hdl.handle.net/10576/9875
Date: 1999

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