Egyptian Journal of Geology最新文献_第5页

SOURCE ROCK EVALUATION AND BASIN MODELLING OF THE CRETACEOUS SUCCESSION AT QARUN AREA, NORTH WESTERN DESERT, EGYPT 埃及西北部沙漠qarun地区白垩系烃源岩评价及盆地模拟

Egyptian Journal of Geology Pub Date : 2020-01-01 DOI: 10.21608/egjg.2020.215750

Lotfy, M. M.

{"title":"SOURCE ROCK EVALUATION AND BASIN MODELLING OF THE CRETACEOUS SUCCESSION AT QARUN AREA, NORTH WESTERN DESERT, EGYPT","authors":"Lotfy, M. M.","doi":"10.21608/egjg.2020.215750","DOIUrl":"https://doi.org/10.21608/egjg.2020.215750","url":null,"abstract":"The aim of this work provides a better understand of the generation, migration, accumulation of hydrocarbons and multivariable processes that occur during the long basin history by the application of petroleum system modelling. Applying basin modelling makes it possible to evaluate the four dimensional controls on source, reservoir and seal rocks distribution, the master tectonic mechanism, as well as, source rock maturation, migration and trap formation. Petroleum potential therefore is influenced not only by the complex distribution of source, seal and reservoir rocks, but also by the effects of burial, uplift and erosion, which all undergo rapid variations in time and space. With the results of the 1-D basin modelling, a zone favorable for the generation of hydrocarbon from the proposed source rocks was defined based on the deposition and the thickness of the overburden rocks and the timing of the generation and migration of the generated and expelled amounts of petroleum. The evaluation of the results of vitrinite reflectance measurements for two wells in the studied basin was performed to obtain calibration data for 1-D basin modelling. In this context, the influence of temperature on organic matter had to be evaluated; maturity data also allowed calculating paleo-temperatures for the time of maximum burial or maximum temperatures. The result of the 1-D simulation shows the difference in burial, thermal and maturity history for the principle tectonic events.","PeriodicalId":282322,"journal":{"name":"Egyptian Journal of Geology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133792595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ZEOLITE-BEARING AMYGDALOIDAL VOLCANIC AND VOLCANOCLASTIC ROCKS AT GABAL KATHERINE AREA, SOUTHERN SINAI, EGYPT 埃及西奈半岛南部gabal Katherine地区含沸石杏仁状火山岩和火山碎屑岩

Egyptian Journal of Geology Pub Date : 2020-01-01 DOI: 10.21608/egjg.2020.216317

Imbarak, S. Hassan, R. Ahmad

{"title":"ZEOLITE-BEARING AMYGDALOIDAL VOLCANIC AND VOLCANOCLASTIC ROCKS AT GABAL KATHERINE AREA, SOUTHERN SINAI, EGYPT","authors":"Imbarak, S. Hassan, R. Ahmad","doi":"10.21608/egjg.2020.216317","DOIUrl":"https://doi.org/10.21608/egjg.2020.216317","url":null,"abstract":"The Gabal (G) Katherina complex in the southern Sinai of Egypt (Being a part of the ArabianShield) consisting mainly of volcanic arc granitoids, epiclastics and pyroclastic volcanic rocks (Rutiq volcanics), followed latterly by the emplacement of high-level intrusions (Katherina ring dyke) and calc-alkaline to slightly alkaline granites. The later-phase intrusions into the country rocks produced deferent degrees of contact aureole with significant alteration effects especially on the early-formed intermediate pyroclastics with their amygdules lava flows producing different degrees of zeolitization in the pyroclastic rocks, were investigated using Optical Microscopy, Scanning Electron Microscopy (SEM), X-ray diffraction (XRD) and wet chemical analyses. The studied volcanic rocks fall considerably in the basaltic andesite and rhyodacitedacite fields and show subcalcalkaline to calcalkaline affinities. On the other hand, the amygdaloidal volcanic rocks show low-temperature hydrothermal alteration characterized by the abundance of chloritization. Geochemically; Hf, Ta, Sr, Y, and Nb show slightly enrichment relative to the other zeolite-rich samples suggesting partial releasing of immobile elements from the volcanic rock during the alteration processes. Furthermore, zeolites found to fill the cavities in a non-uniform behavior. The subclass minerals such as phillipsite and chabazite have been accompanied by palagonite clasts, smectite, and calcite. Zeolites also occur in fibrous aggregates, partly or completely filling spheroid, ellipsoidal or irregular amygdules.","PeriodicalId":282322,"journal":{"name":"Egyptian Journal of Geology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132745126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A NEW APPROACH OF EGYPTIAN CALCIUM CARBONATE UTILIZATION AS INGREDIENTS OF TOOTHPASTE MANUFACTURE 利用埃及碳酸钙生产牙膏的新途径

Egyptian Journal of Geology Pub Date : 2020-01-01 DOI: 10.21608/egjg.2020.216316

Gaber

引用次数: 0

PETROLOGICAL CHARACTERIZATION AND REMOTE SENSING-BASED MAPPING OF WADI EL GHUZA AREA, NORTH EASTERN DESERT, EGYPT 埃及东北部沙漠wadi el ghuza地区岩石学特征及遥感填图

Egyptian Journal of Geology Pub Date : 2020-01-01 DOI: 10.21608/egjg.2020.215758

El-Gameel, E. Desouky

{"title":"PETROLOGICAL CHARACTERIZATION AND REMOTE SENSING-BASED MAPPING OF WADI EL GHUZA AREA, NORTH EASTERN DESERT, EGYPT","authors":"El-Gameel, E. Desouky","doi":"10.21608/egjg.2020.215758","DOIUrl":"https://doi.org/10.21608/egjg.2020.215758","url":null,"abstract":"Wadi El Ghuza area is located north of Safaga-Qena asphaltic Road and covers an area of about 450 km, dominated by different Late Neoproterozoic plutonic and volcanic complexes. The area comprises metavolcanics, serpentinites, metagabbros, older Granitoids, volcanosedimentary succession, felsitic intrusions, younger Granites, and post granitic dykes, respectively from the oldest to youngest rock units. Six consecutive sections were measured for the first time on the Wadi El Ghuza volcanosedimentary successions and exhibited stratigraphic intercalation between the Dokhan-type volcanics and the Hammamat sedimentary rocks. A new detailed geological map of the study area was prepared using remote sensing techniques and conventional and unconventional fieldwork. The false color composite 157 in RGB derived from ETM+ data and the composite 421 in RGB derived from ASTER principal component analysis technique discriminated and distinguished the lithology of different rock units in Wadi El Ghuza area. Geochemical studies of the Late Neoproterozoic units including the Dokhan volcanics and the Younger Granites indicate that they are high-K calc-alkaline affinity and were produced from A-type magmas in post-collisional settings. The studied A-type magma has been assumed to be generated by melting of crustal rocks of tonalite composition.","PeriodicalId":282322,"journal":{"name":"Egyptian Journal of Geology","volume":"434 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116184329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

APPLICATION OF REMOTE SENSING AND AIRBORNE SPECTROMETRIC DATA ANALYSIS TO DELINEATE THE ALTERATION ZONES AT GABAL SUWAYQAT AREA CENTRAL EASTERN DESERT, EGYPT 遥感与航空光谱数据分析在埃及中东部沙漠gabal suwayqat地区蚀变带划分中的应用

Egyptian Journal of Geology Pub Date : 2020-01-01 DOI: 10.21608/egjg.2020.215752

{"title":"APPLICATION OF REMOTE SENSING AND AIRBORNE SPECTROMETRIC DATA ANALYSIS TO DELINEATE THE ALTERATION ZONES AT GABAL SUWAYQAT AREA CENTRAL EASTERN DESERT, EGYPT","authors":"","doi":"10.21608/egjg.2020.215752","DOIUrl":"https://doi.org/10.21608/egjg.2020.215752","url":null,"abstract":"The present study aims to study the potentiality of promised radioactive zones in the granitic rocks at Gable Suwayqat area. The Processed Landsat ETM+ data false color composite image (FCC) band 7, 4, 2 in RGB, band ratios (5/7, 4/3, 3/1), (5/7, 5/1, 4), (3/1, 5/4,7/5) in red green blue and 5/7 in gray color. Principal component analysis (Pc2, Pc3, Pc5) in RGB were prepared for discriminating rock unites. Verified by the fieldwork and airborne gammaray spectrometric surveyed data enabled to differentiate the acidic and mafic rocks, and identified the alteration zones in the granitic rocks, which were effectively distinguished into high felsic and low ferromagnesian mineral contents, relative to the other granite areas. The gamma-ray spectrometric interpretations reveal that most of radiometric anomalies recorded at north eastern and south western sides of study area. The structural framework and consequent surface features controled and managed the distribution and localization of the radioactive elements and the environmental dose rates in the area. The high fractures density act as good channels and passages for the mineral bearing hydrothermal ascending fluids and the percolating meteoric water that leached uranium mineralization and redeposited it in the adjacent fractured sites. Such processes in the granitic masses may be responsible for the presence of uranium and thorium mineralizations in these granites. The calculated dose rates range between 0.1 and 1.1m Sv/year, indicating that the study area remains safe and under the maximum permissible safe radiation dose rate without harm to the individual, with continuous external irradiation of the whole body. The results show that the target area has some eU, eTh, and K% anomalies related to the biotite granites and are structurally controlled by the dominated faults.","PeriodicalId":282322,"journal":{"name":"Egyptian Journal of Geology","volume":"386 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133166940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

GEOTECHNICAL AND GEOCHEMICAL STUDIES ON CARBONATES AND THEIR SUITABILITY FOR ROAD BASES AND CEMENT INDUSTRIES, ELQATAMIYA- AIN SUKHNA ROAD, EGYPT 碳酸盐的岩土和地球化学研究及其对道路基础和水泥工业的适用性，elqatamiya - ain sukhna公路，埃及

Egyptian Journal of Geology Pub Date : 2020-01-01 DOI: 10.21608/egjg.2020.215753

Kamel

引用次数: 0

AN INTEGRATED APPROACH FOR PETROPHYSICAL EVALUATION OF SHALY SAND RESERVOIRS IN SIMIAN FIELD, NILE DELTA,EGYPT 埃及尼罗河三角洲simian油田泥质砂岩储层岩石物性综合评价方法

Egyptian Journal of Geology Pub Date : 2020-01-01 DOI: 10.21608/egjg.2020.215449

Mahmoud, Abouessa Ashour

{"title":"AN INTEGRATED APPROACH FOR PETROPHYSICAL EVALUATION OF SHALY SAND RESERVOIRS IN SIMIAN FIELD, NILE DELTA,EGYPT","authors":"Mahmoud, Abouessa Ashour","doi":"10.21608/egjg.2020.215449","DOIUrl":"https://doi.org/10.21608/egjg.2020.215449","url":null,"abstract":"Submarine channel complexes as in the Nile Delta province has complex geologic settings with a great degree of heterogeneity in reservoir properties, so this study will focus on the study of general geological setting in Simian field in Nile Delta, in addition to the study of the petrophysical, and sedimentological characteristics of the upper Pliocene reservoir rocks of Wastani formation in Simian field. Such studies are intended to improve the process of reserve estimation of the study area. The study includes calculation of petrophysical parameters for Simian reservoir rocks using advanced and conventional logging tools in the available wells to create lithology saturation cross plots and the lithologic identification cross plots ,clay minerals identification, introducing the lateral variation of the lithology and the different saturation distribution in the Pliocene reservoir and comparison of different petrophysical results to select the proper approach that can fit with channelized system to get accurate petrophysical parameters considering all the uncertainty related to reserve calculation to optimize the further development activity.","PeriodicalId":282322,"journal":{"name":"Egyptian Journal of Geology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116705555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

GEOCHEMISTRY AND PETROGENESIS OF THE CALC-ALKALINE GRANITOIDS FROM THE NORTHERN ARABIAN–NUBIAN SHIELD. A CASE STUDY FROM WADI EL-AKHDER GRANITOIDS, SOUTHERN SINAI, EGYPT 阿拉伯-努比亚盾北部钙碱性花岗岩类地球化学及岩石成因。埃及西奈半岛南部wadi el-akhder花岗岩的案例研究

Egyptian Journal of Geology Pub Date : 2020-01-01 DOI: 10.21608/egjg.2020.215761

Moustafa M. Mogahed

{"title":"GEOCHEMISTRY AND PETROGENESIS OF THE CALC-ALKALINE GRANITOIDS FROM THE NORTHERN ARABIAN–NUBIAN SHIELD. A CASE STUDY FROM WADI EL-AKHDER GRANITOIDS, SOUTHERN SINAI, EGYPT","authors":"Moustafa M. Mogahed","doi":"10.21608/egjg.2020.215761","DOIUrl":"https://doi.org/10.21608/egjg.2020.215761","url":null,"abstract":"I-type granitoids emplaced during pre-collision stages of the Neoproterozoic Pan-African Orogeny, are widely distributed in the southern Sinai Peninsula and constituting 30% of the basement outcrops. Petrological, geochemical, and mineral chemistry data are presented for the I-type, Wadi El-Akhder granitic suite (AGR), in order to determine their origin and geotectonic implications. The tonalite– granodiorites of Wadi El-Akhder have geochemical characteristics of medium-K calc-alkaline, metaluminous to mildly peraluminous granitoids formed in an island-arc environment, which are conformable with well-known Egyptian older granitoids rocks (G1). They have low Al2O3, FeO*, MgO, MnO, CaO, TiO2, Sr, Ba, and V contents, but possess high contents of Na2O, K2O, Nb, Zr, Th, and Rb. The studied AGR are generally characterized by enrichment of LILE and LREE and depletion of HFSE relative to N-MORB values, and follow assimilation and fractional crystallization (AFC) trends indicative of extensive crustal contamination of magma derived from a mantle source. The studied granitic rocks show high CaO/Na2O ratios (0.82-1.54) being decrease from tonalite to granodiorites, whereas they have also high Al2O3/TiO2 ratios (16.69-27.61) increasing toward the granodiorites. These features indicate that emplacement of the granitoid were strongly affected by magma mixing of felsic and mafic melts. The chemical characteristics of the AGR are remarkably similar to those of subduction-related granitoids from the Arabian-Nubian Shield (ANS).","PeriodicalId":282322,"journal":{"name":"Egyptian Journal of Geology","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116578423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

GEOLOGICAL, STRUCTURAL AND RADIOACTIVITY STUDIES OF WADI SUTRAHUMM GHEIG AREA, CENTRAL EASTERN DESERT, EGYPT 埃及中东部沙漠sutrahumm黑格地区地质、构造和放射性研究

Egyptian Journal of Geology Pub Date : 2020-01-01 DOI: 10.21608/egjg.2020.215759

H. Khamees, El-Afandy, El-Tawapty

{"title":"GEOLOGICAL, STRUCTURAL AND RADIOACTIVITY STUDIES OF WADI SUTRAHUMM GHEIG AREA, CENTRAL EASTERN DESERT, EGYPT","authors":"H. Khamees, El-Afandy, El-Tawapty","doi":"10.21608/egjg.2020.215759","DOIUrl":"https://doi.org/10.21608/egjg.2020.215759","url":null,"abstract":"Wadi Sutrah-Umm Gheig area is located in the Central Eastern Desert, 20 km west of Marsa Alam international airport and 50 km south of the Quseir city. The area represents a part of the Arabian-Nubian Shield. It is also pertaining to the pan-African complex which consists of a folded belt of metasediments and metavolcanics subjected to greenschist-amphibolite facies metamorphism associated with partial melting of amphibolites and development of gneissic and migmatitic rocks. The rocks of the metasediments are tectonically enclosed sheets and lenses of serpentinites, forming an ophiolitic mélange. These rock units intruded by four granitoid groups related to different magmatic and tectonic events. The area was affected by three distinct deformational events (D1–D3). D1 interpreted to have resulted from the closure of inter-arc basins, ophiolite obduction, and collision of East and West Gondwana, representing the earliest phase of deformation in the area. In the area of Umm Ghamis, D1 represented by a series of tight overturned folds which have a NW-SE strike with NE and SW dip directions. During D2 transpression, which marked the terminal stages of the Pan-African Orogeny, along Wadi Sutrah a series of open folds with NW–SE trending axes that plunge mostly to the SE. D3 deformation is thought to be belongs to the regional Najd system, represented by several prominent shear zones and strike-slip faults. The F3 phase folds are trending nearly E-W discordant to the other older two phases F1 and F2.","PeriodicalId":282322,"journal":{"name":"Egyptian Journal of Geology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122626217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3D SEISMIC INTERPRETATION AND STRUCTURAL ANALYSIS OF SITRA-8 FIELD IN ABU GHARADIG BASIN, NORTHERN WESTERN DESERT, EGYPT 埃及西部沙漠北部ABU gharadig盆地sitra-8油田三维地震解释与构造分析

Egyptian Journal of Geology Pub Date : 2020-01-01 DOI: 10.21608/egjg.2022.214850

El-Kharboutly

{"title":"3D SEISMIC INTERPRETATION AND STRUCTURAL ANALYSIS OF SITRA-8 FIELD IN ABU GHARADIG BASIN, NORTHERN WESTERN DESERT, EGYPT","authors":"El-Kharboutly","doi":"10.21608/egjg.2022.214850","DOIUrl":"https://doi.org/10.21608/egjg.2022.214850","url":null,"abstract":"Sitra-8 Field which located in the northern Western Desert of Egypt is famous with its multi-reservoir zones. The real problem in this field is the hydrocarbon migration which cause in turn that some of the wells in the area became water bearing or even dry. The integration between the structural elements deducted from the 3D seismic analysis and the litho-facies core data, as well as well logging interpretation, gave a clear vision about the water bearing reservoirs (Salama et al., 2017). The present study proposes a significant integration between the subsurface geologic information, the interpreted 3D seismic data and the well logging data, for the purpose of delineating the major effective subsurface structures, as well as the reservoir evaluation at Sitra-8 Field area in the northern Western Desert of Egypt. This can be more helpful in any upcoming appraisal process in the future, which in turn will be reflected on the field development economically. The study area lies between latitudes 29° 44' 41'' & 29° 48' 00'' N and longitudes 27° 56' 27'' & 28° 00' 00'' E. It covers an area about 35 km2. The authors in the current study tracked Abu Roash-C Member reservoir for the same problem and tried to introduce a suitable tool for addressing the hydrocarbon leaking problem. The study was a worthy challenge to find new promising areas; when it comes to the hydrocarbon exploration or development. The authors based on analyzing the petroleum system of the investigated area are recommending future drilling for development in the northeastern part of that area.","PeriodicalId":282322,"journal":{"name":"Egyptian Journal of Geology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126372149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0