Showing papers in "Journal of African Earth Sciences in 2019"

TL;DR: In this article, the pore pressure and fracture gradient were evaluated using well logging data namely density, resistivity, gamma-ray and sonic logs obtained from offshore wells in Badri Field.

TL;DR: In this article, a clockwise P-T path with nearly isothermal decompression is deduced from mineral zoning and textural relationships characterized by mineral recrystallization and multi-layered coronitic overgrowths of plagioclase and clinopyroxene surrounding garnet porphyroblasts.

TL;DR: In this paper, a workflow for the diagnosis of formation damage is introduced to find location, potential source even natural or induced damage, root causes and recommend a suitable treatment method of the formation damage.

TL;DR: In this paper, a 3D facies and petrophysical model of the Upper Bahariya Member and its distribution in the Abu Gharadig field were built on a predefined 3D stratigraphic and structural framework.

TL;DR: The chemical composition of the Upper Mundeck Formation and Logbadjeck Formation from the Douala sub-basin (Cameroon) has been investigated to determine their provenance, the influence of the weathering, the paleoclimate, and the redox condition upon the source rock signature, as well as to decipher the tectonic setting of these sediments as mentioned in this paper.

TL;DR: In this paper, a 3D structural and property model was proposed to better characterize, image and capture the reservoirs by integrating 3D seismic, logs and petrophysical parameters from the Robi-1 well.

TL;DR: In this article, the authors used high-resolution aeromagnetic data to map the spatial distribution of short and long wavelength magnetic anomalies and thickness of sediments in some parts of southeastern Nigeria.

TL;DR: In this paper, the authors used multivariate statistical analysis and GIS techniques for processing the obtained results and integration between water pollution indices and DRASTIC model is a valuable and applicable approach for assessment of groundwater quality using physiochemical parameters of the groundwater and aquifer characteristics.

TL;DR: In this paper, the authors applied magnetic data to follow the deep-seated structures and the connectivity between ophiolite belts in the Allaqi-Heiani suture (AHS) region.

TL;DR: In this paper, an integrated approach of hydrogeological, hydro-geochemical, and statistical techniques combined with geostatistical semi-variogram modeling was applied on a comprehensive dataset using software (Stata/SE 12, ArcGIS 10.4 and Surfer 16 Golden software Inc.).

TL;DR: In this paper, electrical resistivity data were employed to study the litho-textural characteristics of aquifer in Nkanu West Local Government Area of Enugu State, southeastern Nigeria, in order to identify the variation and the interrelationship between the aquifer hydraulic parameters.

TL;DR: An integrated technique of Gravity Recovery and Climate Experiment (GRACE) data along with other data-sets to estimate the variations of groundwater storage over Libya and its zones is presented in this paper.

TL;DR: Gebel Abu Dabbab albite granite as mentioned in this paper is composed mainly of albite, quartz and microcline-microperthite and muscovite, in association with accessories; cassiterite, tantalite-columbite, zircon, allanite and apatite.

TL;DR: In this article, the authors used the gravity recovery and climate experiment (GRACE) data to gain an independent water mass change on large regional scale using GRACE data sets, Terrestrial total water storage (TWS) are alternative index to investigate spatio-temporal water variation responses.

TL;DR: In this article, a statistical approach was taken to determine the most important factors responsible for the decrease of the cohesion and friction angle which are in charge of slope failure, and the coefficients of correlation show that the clay fraction is the most correlated parameter to the cohesion with an index of −0.872.

TL;DR: In this article, the use of Natural Clay (NC) for removal of crude oil from solution was evaluated and the sorbent was characterized by the Fourier transform infrared, scanning electron microscope, X-ray diffraction, Xray fluorescence and Brunauer-Emmett-Teller surface area analyzer.

TL;DR: In this article, the authors tested the capability of thermal remote sensing in monitoring waterlogged areas in Ismailia governorate based on surface soil moisture retrieval using three landsat satellite images 5, 7 and 8 (TM, ETM+ and TIRS) during three different dates (1998, 2008 and 2015).

TL;DR: In the last 25 years, successive revisions were introduced in the lithostratigraphy of the Neoproterozoic Katanga Supergroup, which hosts the Katanga Copperbelt (KCB, D.R.A.S.Congo) as mentioned in this paper.

TL;DR: The Bida Basin is a NW-SE trending inland basin, stretching from Shegwa (NW) to Dekina (SE). It is approximately 350 km long and varies in width from 75 to 150 km as discussed by the authors.

TL;DR: In this article, the heavy mineral composition of Jurassic, Cretaceous and Paleogene sedimentary successions in the Mandawa Basin was investigated to assess changes in sediment provenance through time.

TL;DR: In this article, the structural configuration of the Upper Bahariya Member is studied in the present case and the results of this study will form the basis for future petrophysical studies.

TL;DR: In this article, the authors evaluate the performance of SWAT on the TAMEDROUST watershed (Morocco) under extremely contrasted climatic conditions during the period 1998-2002 and test the effects of the soil data resolution on the watershed response.

TL;DR: In this article, field and laboratory studies were carried out with the aim of characterizing the depositional environment and oxidation conditions during accumulation of shales in the Mamfe basin, showing that the shales were black to dark grey in color, sub-tabular to tabular in occurrence, with some reacting vigorously with dilute HCl, while others did not.

TL;DR: In this paper, the authors investigated the coastline and water level changes of the Burdur lake and identified the causes for decline in the lake levels by using satellite images, precipitation, evaporation, discharge and lake level records.

TL;DR: In this article, the authors presented new U-Pb zircon ages for three granitoid bodies in the Imiter inlier at the eastern part of the Moroccan Anti-Atlas chain, which is located in the northwestern edge of the West African Craton.

TL;DR: In this article, a comprehensive review of the Upper Cretaceous geological evolution of Nigeria focusing on the Benue Trough and adjacent basins is presented, addressing the controversies regarding potential pathways of ingression during transgressive episodes that led to the establishment of the Trans -Saharan seaway.

TL;DR: In this article, the authors focused on mapping the spatial distribution of flash floods vulnerability in Qena's urban areas and found that Qena, Qus, Naqadah, and Dishna urban districts are the most vulnerable to flash floods and located in the very high zone with 25.3%, 14.9, 12.3, and 9.8% respectively.

TL;DR: In this paper, structural, petrological, geochemical and geochronological data compiled in a new geological map on the high-grade metamorphic rocks exposed in the Mbe- Sassa-Mbersi region located along the Tchollire-Banyo Shear Zone, at the northern edge of the Central Cameroon domain.

TL;DR: In this article, the authors used the patterns of growth sedimentation above the limbs of growth folds, and in the downthrows of normal faults as kinematic indictors to verify two phases of strike slip tectonics during the Santonian and Campanian-Maastrichtian superposing an Early Cretaceous rifting in this basin.