A5056068144- Geological and Geochemical Analysis
- earthquake and tectonic studies
- Geochemistry and Geologic Mapping
- High-pressure geophysics and materials
- Geological and Geophysical Studies
- Groundwater and Isotope Geochemistry
- Geological and Geophysical Studies Worldwide
- Geological formations and processes
- Groundwater and Watershed Analysis
- Groundwater flow and contamination studies
- Geology and Paleoclimatology Research
- Geochemistry and Elemental Analysis
- Mine drainage and remediation techniques
- Water Quality and Pollution Assessment
- Hydrocarbon exploration and reservoir analysis
- Flood Risk Assessment and Management
- Heavy metals in environment
- Methane Hydrates and Related Phenomena
- Landslides and related hazards
- Paleontology and Stratigraphy of Fossils
- Mining and Resource Management
- Disaster Response and Management
- Community Development and Social Impact
- Geomagnetism and Paleomagnetism Studies
- Microbial Community Ecology and Physiology
Institut de Recherches Géologiques et Minières
2008-2019
Ministry of Scientific Research and Innovation
2016-2019
University of Bamenda
2019
Okayama University
2001-2009
The University of Tokyo
2001
Tokyo University of Science
2001
The distribution of trace metals in active stream sediments from the mineralized Lom Basin has been evaluated. Fifty-five bottom were collected and mineralogical composition six pulverized samples determined by XRD. fine fraction (< 150 µm) was subjected to total digestion (HClO4 + HF HCl) analyzed for using a combination ICP-MS AAS analytical methods. Results show that mineralogy is dominated quartz (39-86%), phyllosilicates (0-45%) feldspars (0-27%). Mean concentrations are low (e.g. As =...
Abstract The 220–250 km 3 (VEI 7) caldera-forming eruption of Maninjau (West Sumatra, Indonesia) in 52 ±3 ka played a major role for changing the landscape Padang Volcanic Field. Besides forming thick and widespread ignimbrite plateau (especially vicinity Bukttinggi), successfully exposed stratigraphy pre-caldera rocks which predominantly constructed lava (hereafter referred to as somma lava). Since our knowledge regarding relationship between lavas silicic activity is lacking, we aimed...
Abstract his study presents the first and detail field investigations of exposed deposits at proximal sections Barombi Mbo Maar (BMM), NE Mt Cameroon, with aim documenting its past activity, providing insight on stratigraphic distribution, depositional process, evolution eruptive sequences during formation. Field evidence reveals that BMM deposit is about 126m thick, which 20m buried lowermost under lake level covered by vegetation. Based variation in pyroclastic facies within deposit, it...
The Late Cretaceous–Quaternary Cameroon Volcanic Line (CVL) is a 1600 km long chain of volcanoes that straddles the continent–ocean boundary and extends from Gulf Guinea to interior African continent. magmatic activity started at 70 Ma has continued until present. products this are distinctive in terms petrology isotope geochemistry, variety volcanic rocks ranging ultrabasic, alkaline sub-alkaline lavas highly evolved with isotopic compositions indicating complex combinations both...
Volcanic eruptions represent hazards for local communities and infrastructure. Monogenetic volcanoes (usually) erupt only once, then volcanic activity moves to another location, making quantitative assessment of eruptive challenging. Spatio-temporal patterns in the occurrence these may provide valuable information on locations more likely host future within monogenetic fields. While eruption histories many stratovolcanoes along Cameroon Line (CVL) are relatively well studied, fragmentary...