A5065918241- Geology and Paleoclimatology Research
- Groundwater and Isotope Geochemistry
- Isotope Analysis in Ecology
- Groundwater and Watershed Analysis
- Geological and Geophysical Studies
- Rangeland Management and Livestock Ecology
- Coastal and Marine Dynamics
- Water Quality and Pollution Assessment
- High-pressure geophysics and materials
- earthquake and tectonic studies
- Marine and coastal ecosystems
- Coastal wetland ecosystem dynamics
- Groundwater flow and contamination studies
- Methane Hydrates and Related Phenomena
- Aquatic Ecosystems and Biodiversity
- Marine and environmental studies
- Climate variability and models
- Geological and Geochemical Analysis
- Hydrology and Watershed Management Studies
- Seismic Imaging and Inversion Techniques
- Geological formations and processes
- Marine and fisheries research
- Coral and Marine Ecosystems Studies
- Child Nutrition and Water Access
- Landslides and related hazards
Nelson Mandela African Institution of Science and Technology
2015-2020
University of Saskatchewan
2018
National Institute of Advanced Industrial Science and Technology
2015
University of Dar es Salaam
2000-2013
Institut de Ciències del Mar
2009
Université du Québec à Montréal
1999
Memorial University of Newfoundland
1991
Abstract Although magmatism may occur during the earliest stages of continental rifting, its role in strain accommodation remains weakly constrained by largely 2‐D studies. We analyze seismicity data from a 13 month, 39‐station broadband seismic array to determine magma intrusion on state‐of‐stress and localization, their along‐strike variations. Precise earthquake locations using cluster analyses new 3‐D velocity model reveal lower crustal earthquakes beneath central basins along...
Land use/cover and climate changes have a great influence on the hydrological processes in watershed. The impacts of land change are set to increase future due increased clearance virgin forest lands for agriculture rise global warming. way which will interact with use affect water balance watersheds requires more attention. This study was carried out Ndembera river watershed Usangu basin, Tanzania, whereby Soil Water Assessment Tool used (i) assess impact near (2010–2039) 2013–2020...
The Eastern Rift System (ERS) of northern Tanzania and southern Kenya, where a cratonic lithosphere is in the early stages rifting, offers an ideal venue for investigating roles magma other fluids such environment. To illuminate these roles, we jointly invert arrival times locally recorded P S body waves, phase delays ambient noise generated Rayleigh waves Bouguer anomalies from gravity observations to generate 3-D image wave speeds upper 25 km crust. While joint inversion requires...
Arusha aquifers have been exploited intensively serving as the main source of domestic water supply in city. But quality groundwater is not clearly documented for future planning and management. Hydrogeochemical assessment was carried out to establish its spatial distribution with aid geostatistical techniques. Groundwater samples were collected analyzed major cations anions using conventional methods analysis. Well lithology geological map considered hydrogeological interpretation area. The...
Climate change and population growth around Mt. Meru experienced lower availability of water for domestic agricultural uses. Reduction in quantity is compounded by lack information on quality which could lead to undesired health risks effects when such used irrigation. Thus, major ions from 54 different types (springs, streams, dug wells, boreholes, lakes) were assess hydrogeochemical characteristics suitability purposes. Results showed dominance the cation anion order Na+ > K+ Ca2+ Mg2+...
This paper assesses the impacts of farmers’ intensive use agrochemicals (fertilizers and pesticides) on groundwater quality in Kahe catchment. Samples were collected during wet dry seasons year 2018 analyzed for presence water. Groundwater chemistry was dominated by magnesium-sodium-bicarbonate (Mg-Na-HCO3−). The cations levels trend Mg2+ >Na+ > Ca2+ K+, whereas anions HCO3− Cl− SO42− both seasons. NO3− had an average value about 18.40 ± 4.04 7.6 1.7 mg/L season, respectively. Elevated...
Rifting in a cratonic lithosphere is strongly controlled by several interacting processes including crust/mantle rheology, magmatism, inherited structure and stress regime. In order to better understand how these physical parameters interact, 2 yr long seismological experiment has been carried out the North Tanzanian Divergence (NTD), at southern tip of eastern magmatic branch East African rift, where southward-propagating continental rift its earliest stage. We analyse teleseismic data from...
The Hombolo dam (HD), in central Tanzania, is a shallow reservoir characterized by high salinity that limits its use for human activities. origin of the salinity, mechanisms reaching and concentrating remain unclear. These were assessed using hydrogeochemical facies, water type evolutions mapping. source HD was identified to be groundwater (SG) runoff from seasonal floodplain with NaCl-rich lithological materails, along Little Kinyasungwe River feeds dam. units, about 5–7 km upstream dam,...
Dodoma city, central Tanzania, seats in a semi-arid region of East Africa with limited rains and surface water resources. Consequently, the area largely depends on shallow deep aquifers for its freshwater needs. Owing to harsh climatic conditions, chronic lack year-round bodies and, development distribution infrastructures, over year's local people have nurtured, developed passed important indigenous knowledge (IK) exploiting managing (SAs). However, there is no clear documented...
Surface and groundwater from Pangani River Basin (PRB) were sampled in dry wet seasons, analysed for dissolved organic inorganic nutrients (N, P, Si Urea). There was spatial seasonal nutrients' variability, with enrichment of fractions accumulated natural anthropogenic sources. Silicates increased season, whereas nitrate, ammonium, phosphate urea season; except phosphate, other upstream to the river mouth. High rate chemical weathering possibly due tropical climate volcanic rocks has caused...
We present a joint analysis of newly acquired gravity and teleseismic data in the North Tanzanian Divergence, where lithospheric break-up is at its earliest stage. The impact mantle upwelling more mature branches East African Rift has been extensively studied scale. However, few studies have completed that relate deep-seated anomaly detected broad regional seismic tomography with surface deformation observed thick Archaean Pan-African suture zone located Tanzania. Our inversion closes gap...
Formative research findings from the fast-growing Babati town were used to assess prevalence of sanitation and hygiene practices among individuals institutions associated factors. A cross-sectional study involving household surveys, spot-checks, focus group discussions, in-depth interviews, structured observations behaviors showed that 90% households have facilities, but 68% safely managed services. The most common types facilities pit latrines with slab (42%) followed by flush/pour flush...