Series-1 May – June 2021 Issue Statistics
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| Paper Type | : | Research Paper |
| Title | : | Effect of Sand Consolidation In Course of Time on Seismic Properties |
| Country | : | |
| Authors | : | Semenova Yuliia |
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: | 10.9790/0990-0903010105  |
Abstract: Background: The growing pace and volume of construction of high-rise buildings and important engineering structures requires the development of new territories, which, according to expert estimates, are often characterized by difficult engineering and geological conditions and deteriorated seismic properties.Cities are expanding, usually settling on land with poor seismic properties.
Materials and Methods: The study investigated the effect of consolidation of alluvial sand over time on the amplitude-frequency characteristics of the soil under the construction site.
Results: The results of the study of the influence of the factor of consolidation of alluvial sand over time on the amplitude-frequency characteristic.....
Keywords: Amplification, Seismic oscillations, Seismic properties of soils, Frequency characteristics of soil, Earthquakes.
[1]. Bardet, J., Ichii, K., Lin, C.: Manual of EERA: A Computer Program for Equivalent-Linear Earthquake Site Response Analysis of Layered Soil Deposits. University of Southern California, Los Angeles (2000)
[2]. Building in seismic regions of Ukraine: SBS V.1.1-12: 2014, (2014). Kyiv: Building Ministry of Ukraine, 84 p. (in Ukrainian)
[3]. Chowdhury I., Dasgupta S.P. (2019) Soil Dynamics and Earthquake Engineering. In: Earthquake Analysis and Design of Industrial Structures and Infra-structures. GeoPlanet: Earth and Planetary Sciences. Springer, Cham. https://doi.org/10.1007/978-3-319-90832-8_3
[4]. Finn, W. D. L., Yogendrakumar, M., Yoshida, N., Yoshida, M.: TARA-3: a program for nonlinear static and dynamic effective stress analysis. Soil dynamics group, Univ. of British Columbia, Vancouver (1986)
[5]. Hashash, Y. M. A., Park, D.: Non-linear one-dimensional seismic ground motion propagation in the Mississippi embayment. Engineering Geology 62(1-3), 185—206 (2001).
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| Paper Type | : | Research Paper |
| Title | : | Structural Seismic Interpretation of Olaj - field within the Niger Delta |
| Country | : | Nigeria |
| Authors | : | Osisanya O.W || Korode A.I || Ighrakpata F.C || Asarhasa P.E, Nwigwe G.C |
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: | 10.9790/0990-090301614 |
Abstract: Structural seismic interpretation is a key component of seismic interpretation workflow, as much information on reservoir architecture which is required for hydrocarbon play assessment can be obtained. This study presents the results of the integration of structural time-depth maps to define reservoir units across five (5) well for hydrocarbon play assessment of Olaj-field within the Niger Delta basin. Two reservoir windows (R1 and R2) were delineated from five wells (W-02, 04, 06, 07 and 012). The top and base of each reservoir window were delineated from the five wells using their gamma ray and resistivity log response. Well to seismic correlation was carried out with checkshot data from well-012. Structural interpretation for inline 6975 revealed about eight (8) faults labelled.....
Keywords: Seismic section, Structural interpretation, Faults, Structural maps and Well log.
[1]. Avobovbo, A. A. (1978): Tertiary lithostratigraphy of Niger Delta. American Association of Petroleum Geologists. Tulsa, Oklahoma. Pp. 96-200.
[2]. Barde J.P, Chambertain P, Gralla P, Harwi Janto J, Marsky J, Schroeter T (2000). Explaining a complex hydrocarbon system in the Permo-Triassic of the Precaspian basin by integration of independent models. Abstracts, 62nd European Association of Geoscientists and Engineers Conference and Technical Exhibition, 2: (P.021), P.4.
[3]. Bilotti, F. and J.H. Shaw. (2005). "Deepwater Niger Delta Fold and Thrust Belt modeled as a Critical – Taper Wedge: The Influence of Elevated Basal Fluid Pressure on Structural Styles". AAPG Bulletin. 89(11): P.1475-1491.
[4]. Doust, H; Omatsola, E (1990). Niger Delta, in Edwards, JD; Santogrossi, PA eds; Divergent/passive Margin basins; AAPG Memoir 45: P. 239–248.
[5]. Eshimokhai, S. and Akhirevbulu, O.E, (2012): Reservoir characterization using seismic and well log data (A case study of Niger Delta). Ethiopian Journal of Environmental Studies and Management (EJESM). Vol. 5, No.4 Pp. 597-773
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| Paper Type | : | Research Paper |
| Title | : | A new occurrence of yttriumuraninite, Selenium minerals, Sphalerite and Pyrite assemblages from research drilling at Abu Rusheid uranium mineralization, southern Eastern Desert, Egypt |
| Country | : | Egypt |
| Authors | : | Ahmed S. Shalan |
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: | 10.9790/0990-0903011527 |
Abstract: Based on petrographic investigation applied to the picked core samples through pre-pilot drillhole north of Wadi Abu Rusheid, SED, Egypt with depth of 47m which have been studied perfectly, the subsurface metamorphic sequence are (from top to bottom): mica schist, buffish gray mylonitic gneiss, quartz feldspar whitish mylonitic gneiss, caverneous mica schist, quartz-hornblend-biotite schist and finally whitish gray mylonite gneiss interrupted by thin layer of quartz-carbonate-hornblend-biotite schist. Mineral association found for the first time in the area under investigation, the yttriumuraninite (gummite), uranophane, are found together with botryoidal sphalerite (with colloform texture), Przibramite ((Zn,Cd)S), Clausthalite (PbSe) and Berzelianite (Cu2Se) as well as well-developed pyrite that confirmed by Scanning Electron Microscope (SEM). Thorite and uranothorite are also......
Keywords; pre-pilot drillhole, Mylonitic gneiss, Gummite, Przibramite, Clausthalite, Abu Rushied. Egypt
[1]. Abd El-Naby and H., Frisch, W., (2006): Geochemical constraints from the Hafafit Metamorphic Complex (HMC): evidence of Neoproterozoic back-arc basin development in the central Eastern Desert of Egypt. Journal of African Earth Science, 45, 173-186.
[2]. Abd El-Naby, H. and Frisch, W., (2002): Origin of the Wadi Haimur–Abu Swayel Gneiss belt, South Eastern Desert, Egypt: Petrological and geochronological constraints, Precambrian Research, 113: 307 322.
[3]. Abd El-Naby, H., Frisch, W., Hegner, E., (2000): Evolution of Pan-African Wadi Haimur metamorphic sole, Eastern Desert, Egypt. Jounal of Metamorphic Geology, 18, 639-651.
[4]. Assaf, H. S., Ibrahim, M. E., Zalata, A. A., El- Metwally, A. A. and Saleh, G. M. (2000): Polyphase folding in Nugrus-Sikeit area south Eastern Desert, Egypt. JKAW: Earth Sci., 12, 1-16 p.
[5]. Cebron, F., Ildefonse, P., and Sichere, M. C., (1993): New mineralogical data on uranophane and B-uranophane, synthesis of uranophane. Mineralogical Mag., 57, pp. 301-308