Publisher: Science and Education Publishing   (Total: 75 journals)   [Sort by number of followers]

Showing 1 - 75 of 75 Journals sorted alphabetically
American J. of Applied Mathematics and Statistics     Open Access   (Followers: 10)
American J. of Applied Psychology     Open Access   (Followers: 50)
American J. of Biomedical Research     Open Access   (Followers: 2)
American J. of Cancer Prevention     Open Access   (Followers: 7)
American J. of Civil Engineering and Architecture     Open Access   (Followers: 40)
American J. of Clinical Medicine Research     Open Access   (Followers: 5)
American J. of Educational Research     Open Access   (Followers: 62)
American J. of Electrical and Electronic Engineering     Open Access   (Followers: 26)
American J. of Energy Research     Open Access   (Followers: 7)
American J. of Environmental Protection     Open Access   (Followers: 4)
American J. of Epidemiology and Infectious Disease     Open Access   (Followers: 14)
American J. of Food and Nutrition     Open Access   (Followers: 46)
American J. of Food Science and Technology     Open Access   (Followers: 3)
American J. of Infectious Diseases and Microbiology     Open Access   (Followers: 23)
American J. of Information Systems     Open Access   (Followers: 4)
American J. of Materials Engineering and Technology     Open Access   (Followers: 3)
American J. of Materials Science and Engineering     Open Access   (Followers: 7)
American J. of Mathematical Analysis     Open Access   (Followers: 1)
American J. of Mechanical Engineering     Open Access   (Followers: 64)
American J. of Medical and Biological Research     Open Access   (Followers: 3)
American J. of Medical Case Reports     Open Access   (Followers: 1)
American J. of Medical Sciences and Medicine     Open Access   (Followers: 2)
American J. of Medicine Studies     Open Access   (Followers: 3)
American J. of Microbiological Research     Open Access   (Followers: 4)
American J. of Modeling and Optimization     Open Access   (Followers: 2)
American J. of Nanomaterials     Open Access   (Followers: 6)
American J. of Numerical Analysis     Open Access   (Followers: 1)
American J. of Nursing Research     Open Access   (Followers: 5)
American J. of Pharmacological Sciences     Open Access   (Followers: 1)
American J. of Public Health Research     Open Access   (Followers: 30)
American J. of Rural Development     Open Access   (Followers: 5)
American J. of Sensor Technology     Open Access   (Followers: 2)
American J. of Sports Science and Medicine     Open Access   (Followers: 39)
American J. of Water Resources     Open Access   (Followers: 10)
American J. of Zoological Research     Open Access   (Followers: 4)
Applied Ecology and Environmental Sciences     Open Access   (Followers: 29)
Applied Mathematics and Physics     Open Access   (Followers: 3)
Automatic Control and Information Sciences     Open Access   (Followers: 4)
Biomedical Science and Engineering     Open Access   (Followers: 5)
Chemical Engineering and Science     Open Access   (Followers: 58)
Intl. J. of Celiac Disease     Open Access  
Intl. J. of Dental Sciences and Research     Open Access   (Followers: 1)
Intl. J. of Econometrics and Financial Management     Open Access   (Followers: 4)
Intl. J. of Physics     Open Access   (Followers: 10)
Intl. Transaction of Electrical and Computer Engineers System     Open Access   (Followers: 2)
J. of Automation and Control     Open Access   (Followers: 10)
J. of Biomedical Engineering and Technology     Open Access  
J. of Business and Management Sciences     Open Access  
J. of Cancer Research and Treatment     Open Access   (Followers: 3)
J. of Computer Networks     Open Access   (Followers: 6)
J. of Computer Sciences and Applications     Open Access  
J. of Environment Pollution and Human Health     Open Access   (Followers: 3)
J. of Finance and Accounting     Open Access   (Followers: 8)
J. of Finance and Economics     Open Access   (Followers: 13)
J. of Food and Nutrition Research     Open Access   (Followers: 9)
J. of Food Security     Open Access   (Followers: 2)
J. of Geosciences and Geomatics     Open Access   (Followers: 1)
J. of Materials Physics and Chemistry     Open Access   (Followers: 7)
J. of Mathematical Sciences and Applications     Open Access   (Followers: 2)
J. of Optoelectronics Engineering     Open Access   (Followers: 5)
J. of Physical Activity Research     Open Access   (Followers: 3)
J. of Polymer and Biopolymer Physics Chemistry     Open Access   (Followers: 7)
Materials Science and Metallurgy Engineering     Open Access   (Followers: 8)
Nanoscience and Nanotechnology Research     Open Access   (Followers: 21)
Physics and Materials Chemistry     Open Access   (Followers: 1)
Research in Plant Sciences     Open Access  
Research in Psychology and Behavioral Sciences     Open Access   (Followers: 2)
Sustainable Energy     Open Access   (Followers: 2)
Turkish J. of Analysis and Number Theory     Open Access  
Wireless and Mobile Technologies     Open Access   (Followers: 4)
World J. of Agricultural Research     Open Access  
World J. of Analytical Chemistry     Open Access   (Followers: 3)
World J. of Chemical Education     Open Access   (Followers: 2)
World J. of Environmental Engineering     Open Access   (Followers: 1)
World J. of Organic Chemistry     Open Access   (Followers: 5)
Similar Journals
Journal Cover
Journal of Geosciences and Geomatics
Number of Followers: 1  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2373-6690 - ISSN (Online) 2373-6704
Published by Science and Education Publishing Homepage  [75 journals]
  • Contribution to the Petrogenesis of Pan-Africain Granitoids from East
           Pitoa in the Northern Cameroon Domain of the Central Africain Fold Belt:
           Implications for Their Sources and Geological Setting

    • Authors: Cedric Roth Happi Djofna; Merlain Houketchang Bouyo, Daouda Dawai, Rigobert Tchameni, Landry Kouedjou, Martial Periclex Tchunte Fosso, Hervé Brice Fotso Kengne
      Pages: 112 - 125
      Abstract: This article presents original geological and geochemical data on more or less deformed granitoids rocks of the Pitoa region in Domain North Cameroon. The Pitoa granitoids consist of leucocratic, gray and pink colored, fine to medium grained granites as well as quartz monzonite, containing numerous enclaves of mafic rocks, intruded in gneiss and amphibolite and cut by dykes of pegmatite, aplite and dolerite. They present porphyritic, inequigranular, granophyric and microgranophyric textures consisting essentially of quartz, K-feldspar, plagioclase, biotite and the accessory minerals are zircon, apatite, titanite and opaque minerals. The Plutonic rocks of Pitoa show the characteristics of the shoshonitic and calc-alkaline series with high-K content. They are magnesian to ferrous, luminous to slightly hyper-luminous metallic and exhibit the characteristics of type 1 granitoids. REE data and normalized chondritic plots show variable enrichment of all rocks in LREE compared to HREE with a negative europium anomaly (Eu/Eu*= 0.19 – 0.8), except for the pink granite sample DS15 which shows a positive Eu anomaly (14.6). They are distinctively depleted in Th, Nb, Ba, Sr, Ti and Ta. The data indicate that this assemblage of granitic rock did not result from the simple differentiation of a common parental magma, but show that the plutonic rocks of Pitoa arose from different crustal protoliths. Trace element and major composition are consistent with the magmatism which may have involved reworking of a composite protolith of metagrey-wackes in the upper crust and amphibolitised high -K calc-alkaline basaltic andesites in the northern domain of the Orogenic belt from Central Africa. These granitoids were set up in a tectonic context of continental subduction collision. They are emplaced in the active continental margin and fractional crystallization (FC) is a major process that controls magmatic differentiation.
      PubDate: 2022-06-26
      DOI: 10.12691/jgg-10-3-1
      Issue No: Vol. 10, No. 3 (2022)
       
  • Physicochemical and Mineralogical Characterization of Clay Materials in
           the Douala Coastal Sedimentary Sub-basin (Cameroon, Central Africa)

    • Authors: Kankao Oumar Oumla; Ngon Ngon Gilbert François, Tehna Nathanael, Bayiga Elie Constantin, Mbog Michel Bertrand, Mbaï Joel Simon, Etame Jacques
      Pages: 126 - 138
      Abstract: This study is focused on the physicochemical and mineralogical characterization of five different clay materials of Eastern part of Douala sub-basin. It aims to know the nature and geotechnological properties of the clay raw materials in order to raise the idea of their potentialities in industrial applications. The samples were subjected to several analyses such as geotechnical tests notably the particle size distribution, the Atterberg limits, the swelling index, the chemical (cation exchange capacity, pH-H2O and pH-KCl, X-ray fluorescence) and mineralogical (X-ray diffraction) analyses. These clay materials showed high fine fractions (up to 99%) and high plasticity index (15 to 63%). The swelling index is medium (16 to 20) and the CEC moderate (30 - 40), indicating the presence of a small proportion of swelling 2:1 type clays. The clay materials are predominantly constituted by kaolinite (32 – 72%), quartz (20.2 - 50.7%) and illite (4.6 – 10%), which are characteristic of the sedimentary environment and morphoclimatic conditions of the Douala coastal sedimentary sub-basin. The predominant oxides in clay materials are SiO2 (34.05 - 51.18%) and Al2O3 (16.05 - 23.98%). Iron oxide Fe2O3 is moderate (1.55 - 11.22%) and alkali and alkaline earth oxides are weak less than 2%. The physicochemical parameters associated with mineralogical and geochemical data make them suitable for ceramic applications and also serve as backfilling materials in building constructions when improved by adding sand.
      PubDate: 2022-07-17
      DOI: 10.12691/jgg-10-3-2
      Issue No: Vol. 10, No. 3 (2022)
       
 
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