March 2013

Suitability of soils as bearing media at a freshwater swamp terrain in the Niger Delta

  This study evaluates the subsurface lithologies as well as examines the properties of the soils at a University location within the fresh water swamp terrain in the Niger Delta. Borings for subsurface exploration in the area were made at five well spaced locations with a hand auger to a maximum depth of 4.00 m in each borehole. Soil samples were retrieved at 0.5 m interval and at positions where changes in...

Author(s): P. O. Youdeowei and H. O. Nwankwoala

March 2013

Geological and geophysical mapping of fracture anisotropy at Aiyegunle and environs, Igarra area South western Nigeria

  Characterization of fracture anisotropy in Aiyegunle area of Igarra Southwestern Nigeria was done by geologic mapping of exposed outcrops and azimuthal resistivity survey (ARS) at three vertical electrical sounding (VES) stations. Rose diagrams, stereographic projections, and resistivity anisotropy polygons were used to delineate and integrate surface and subsurface structural trend. Dominant joints...

Author(s): Kehinde I. O., Ukaegbu V. U., Omosanya K. O., Ideozu R. U. and Mosuro G. O.

March 2013

Preliminary interpretation of gravity mapping over the Njaba sub-basin of southeastern Nigeria: An implication to petroleum potential

  Gravity data were acquired along two profiles in some parts of the Njaba River sub-basin. Profile A-A’ and B-B’ run for about 30 and 12 km respectively with the end of the two profiles meeting at Oguta Lake. The Bouguer gravity anomaly along Profile A-A’ revealed initial positive gravity values to a wavelength of about 21 km and then followed by a sudden drop of the observed gravity showing...

Author(s): Ezekiel J. C., Onu N. N., Akaolisa C. Z. and Opara A. I.