Research Papers/Topics in Geology

Compositional characteristics and industrial assessment of sedimentary clay bodies in part of eastern Dahomey Basin, southwestern Nigeria

Abstract Clay bodies occur as lenses and interbeds within the predominantly shaley Akinbo Formation in the eastern Dahomey Basin. They are greenish to grayish, plastic, and in some places contain concretions. In order to assess their sedimentological significance as well as evaluate their potential as industrial raw materials, representative outcrop arid borehole samples .were subjected to mineralogical, chemical and physical characterisation. • • •, •, > l j . Mineralogical...

Dodging The Potholes: The Spatio-Distribution And Socio-Economic Impacts Of Potholes In The Residential Areas Of Gweru, Zimbabwe

Abstra c t: Since the year 2000, the city o f Gweru has had an unprecedented proliferation o f unattended potholes on most o f its roadsThese potholes have caused discomfort to the motoring public, caused death to others and damaged vehicles. This paper presents theresults o f a study that sought to establish the spatial distribution o f potholes and determine their socio-economic impacts in Gweru’sresidential areas. Pothole location and dimensions were measured in the field whilst intervie...

Petrography Of Some Alfered Intrusive Rocks From The Lower Benue Trough, Nigeria

AbstractSome intrusive rocks of doleritic to dioritic compositions horn the Ejekwe-Wanikande and Okigwe-Ishiagu districts in theLower Benue Trough have been studied using thin section microscopy and X-ray (powder) difiaction method. The rocks haveintmded pre-Santonian sedimentary rocks which are predominantly calcareous shales. The exposures of these intrusive rocksgenerally have widths ranging from about 40m to 228 m. sThe intrusive rocks are generally melanocratic to mesocratic (dark.to-lig...

Technology And The Challenges Of Oil And Gas Exploration In The 21st Century

table of contentsfirewordAcknuwledgemetttsiii Executive Surtzmary1. In t reduction1.1 Main objectives and stnlcture of the paper 71.2 Some historical perspectives 7The Present as a key to the future: a look at the last 20 years ofthe upstream oil and gas industry2.1 Strategic and organisational changes 82.2 World demand for crude oil arid gas 102.3 Spot oil prices 102.4 World crude oil and gas resources 122.5 lmprovements in discovery and recovery rates 142.6 Lessons from the Gulf of Mexico 1...

The Influence Of Increase In Fines Content On The Engineering Properties A Sandy Soil Deposit In Nsukka, Enugu State, Nigeria.

ABSTRACTThis project addresses the effects of increase in fines contents on the geotechnical propertiesof sandy soils and the roles the fines play in slope instability in Nsukka, Enugu state inNigeria. Field investigation revealed that the major landslides and gully erosion sites in southeastern Nigeria are localized within areas where these sandy soils are present. Geotechnicalinvestigation of these sandy soils was carried out to assess their importance in the numerousgeohazards in the area....

Reconnaissance Exploration for Gold in the Misaki Area within the Iramba-Sekenke Greenstone Belt, Central Tanzania

Abstract Combinations of geological, geophysical and geochemical techniques have been used to explore for gold deposits at Misaki within the Iramba-Sekenke Greenstone Belt in Singida region. The Misaki area is occupied by different rocks including homogeneous coarse-grained granite containing numerous xenoliths (> 5 vol. %), tonalite, K-rich granite, pegmatite and dolerite dykes. All granitic rocks have been intruded by dolerite dykes, cut by epidote veins and are found juxtaposed to a ...

Investigation Of Geo-environmental Hazards And Reclamation Of Abandoned Borrow Pits, South - Eastern, Nigeria

 ABSTRACT Geo-environmental hazards associated with active and abandoned borrow pits are on the increase following rising trend in road construction. This situation presents a major challenge to Citizens, Environmentalists and Governments. Several highway failures have been directly linked to the action of erosion initiated by active or abandoned borrow pits situated close to roads. This study investigated environmental hazards and reclamation requirements associated with abandoned ...

The Impact Of Small-Scale Mining Activities On The Environment: Examples From Uis, Xoboxobos, Neu Schwaben And Otjinene.

ABSTRACTThis study explored the impact of small-scale mining activities on the environment in tworegions in Namibia: Erongo (examples: Uis, Neu Schwaben, Xoboxobos) and Omaheke(example: Otjinene). Limited research is done on the activities of small-scale mining inNamibia which results in unavailability of data. Although recent studies reveal that about 5000 to 10 000 Namibians work as small-scale miners, information about mining activities inNamibia remain a rare commodity. Small-scale miners...

The Impact Of Small-Scale Mining Activities On The Environment: Examples From Uis, Xoboxobos, Neu Schwaben And Otjinene

ABSTRACTThis study explored the impact of small-scale mining activities on the environment in tworegions in Namibia: Erongo (examples: Uis, Neu Schwaben, Xoboxobos) and Omaheke(example: Otjinene). Limited research is done on the activities of small-scale mining inNamibia which results in unavailability of data. Although recent studies reveal that about 5000 to 10 000 Namibians work as small-scale miners, information about mining activities inNamibia remain a rare commodity. Small-scale miners...

The Geochemistry And Geochronology Of The Barby Formation In The Sinclair Area, Southern Namibia

ABSTRACTVolcanic and sedimentary rocks of the Sinclair Supergroup occur in the KonkiepTerrane of Southern Namibia. Three volcanic and sedimentary cycles are recognised.The Barby Formation belongs to the second cycle which consists of the KunjasFormation, Barby Formation and the Guperas Formation. In this work, the volcanicrocks of the Barby Formation, a key unit in the Sinclair area are described and dated.The coeval Spes Bona Syenite and the Tiras Granite are also described and dated. Theroc...

Age Dating Of Groundwater In Perched Aquifers Okongo Area, Ohangwena Region

AbstractKnowledge of groundwater age / residence time in Okongo perched aquifer is important in understanding key issues in the evolution of groundwater, recharge rates, recharge mechanisms, resource renewability, flow rate and distribution of recharge areas. The build-up in the atmosphere of trace gases such as sulfur hexafluoride (SF6) and tritium (3H) from over a centenary ago offers a convenient way of dating groundwater up to the age of 60 years. These gases are well mixed in the atmosph...

Geogenic groundwater pollution in volcanic rock aquifer systems on the eastern, western and northern flanks of Mount Meru, Tanzania special reference to fluoride

Geogenic groundwater pollution in volcanic rock aquifer systems on the eastern, western and northern flanks of mount Meru, Tanzania – special reference to fluoride

The Influence Of Groundwater Management Strategies On Groundwater Levels Of Namibian Savannah Aquifers

ABSTRACT Namibia has been known as water-scarce, attributing mostly to its geographic location and primarily because of the limited surface water as well as the high potential evaporation rates beyond 2000 mm/year. Groundwater therefore quickly becomes crucial, most of which is located in aquifers in the savannah biome which covers a large part of the country. This is also where most industrialization, as well as most farming, is practised. It is however unknown how these savannah a...

Performance Of Broiler Chickens Fed Pearl Millet As Groundwater Recharge Of Perched Aquifers In The Cuvelaietosha Basin, Namibia

Abstract The United Nation predicted that by 2025, 1.8 billion people will be living in countries with absolute water scarcity and two-thirds of the world population could be under stress condition.  In semi-arid regions, most communities depend on groundwater as the source of drinking water and thus with changes in global climatic conditions and increase in population, groundwater resources are facing challenges of both over-exploitation and contamination. Therefore, there is an ur...


1 - 15 Of 108 Results