Johnson Manu

University of Ghana

Publishing since 1989, latest 2026

Geophysics
Artificial Intelligence
Geochemistry and Petrology
Geology
Mechanical Engineering
Building and Construction

Publications: 171989–2026
Citations: 231to those papers
h-index: 6i10-index 5
Field-weighted impact: 0.911.00 is the world average
World top 10%: 12%2 of 17 scored papers
Open access: 53%9 papers free to read

By year

Papers, and the citations to them

Publications, left axisCitations to that year’s papers, right axis2026 still in progress

Publications

17 in all

Exploring the mineralization potential of Paleoproterozoic Birimian pegmatites associated with granite and other host rocks in Southern Ghana, a search for critical mineral within the Ekumfi District
2026Ore and Energy Resource GeologyJournal2 citations10.1016/j.oreoa.2026.100123
Constraints on Fluid Composition and Physico-Chemical Conditions for the Birimian Gold Deposits in Ghana
2025

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Citations received each year

Peerford

To all their work, old papers included. Google Scholar also counts citations from theses, books and web pages, so its line runs higher.

What they work on

From the classification of each paper

Subfields

Geophysics1271%
Artificial Intelligence953%
Geochemistry and Petrology847%
Geology318%
Mechanical Engineering318%
Building and Construction16%
Control and Systems Engineering16%
Earth-Surface Processes16%
Environmental Chemistry16%
Global and Planetary Change16%

Physical Sciences

Topics most written on

Geological and Geochemical Analysis12
Geochemistry and Geologic Mapping9
Geochemistry and Elemental Analysis7
earthquake and tectonic studies3
Geological and Geophysical Studies3
Mineral Processing and Grinding2
Arsenic contamination and mitigation1
Extraction and Separation Processes1
Geological and Geophysical Studies Worldwide1
Geological formations and processes1
Geophysical and Geoelectrical Methods1
Groundwater and Isotope Geochemistry1

Who they write with

Their most frequent co-authors, and the papers those co-authors share

Where their co-authors are

29% of their papers have a co-author abroad

papers co-written1234567Home

Most frequent partner countries

South Africa3
China2
Denmark1
Kazakhstan1
Ethiopia1
Nigeria1
Sri Lanka1

Papers with at least one author in that country.

Institutions written with most

University of JohannesburgZA3 papers
Chinese Academy of SciencesCN2 papers
Institute of Geology and GeophysicsCN2 papers
Ghana Atomic Energy CommissionGH2 papers
State Key Laboratory of Isotope Geochemistry1 paper
Technical University of DenmarkDK1 paper
University of PeradeniyaLK1 paper
Satbayev UniversityKZ1 paper
Guangzhou Institute of GeochemistryCN1 paper
Kwame Nkrumah University of Science and TechnologyGH1 paper

Where they publish

International Journal of Basic and Applied Sciences3
Journal of African Earth Sciences2
African Journal of Environmental Science and Technology1
African Journal of Science and Technology1
Earth and environmental sciences library1
GEOCHEMICAL JOURNAL1

Development goals addressed

From each paper’s title and abstract

14Life below water6
6Clean water and sanitation2
10Reduced inequalities1
12Responsible consumption and production1
15Life on land1

Most cited

Geochemistry of Paleoproterozoic metasedimentary rocks from the Birim diamondiferous field, southern Ghana: Implications for provenance and crustal evolution at the Archean-Proterozoic boundary
GEOCHEMICAL JOURNAL14
2004106 citationsOpen access · Diamond
Impact of artisanal small-scale (gold and diamond) mining activities on the Offin, Oda and Pra rivers in Southern Ghana, West Africa: A scientific response to public concern
Heliyon6
202238 citationsWorld top 10%Open access · Gold

Earth and environmental sciences library

Arsenic Sorption Characteristics in Decommissioned Tailings Dam Environment at the Obuasi Mine, Ghana

2013Research Journal of Environmental and Earth SciencesJournalOpen access4 citations10.19026/rjees.5.5690

Hydrologic fluxes in the Volta River watershed : A paleo-terrestrial environment in West Africa

2010African Journal of Environmental Science and TechnologyJournalOpen access1 citation10.5897/ajest09.186

Conventional potassium - Argon age of the Shai Hills, Southeastern Ghana

1989Journal of African Earth SciencesJournalSenior author1 citation10.1016/0899-5362(89)90051-1

Geological Magazine1

How it can be read

53% free to read

Diamond 6 · 35%Free to read and to publish
Gold 1 · 6%In an open-access journal
Hybrid 1 · 6%Open in a subscription journal
Bronze 1 · 6%Free to read, no open licence
Closed 8 · 47%Behind a paywall

Who funds it

8 of 17 papers name a funder

University of Ghana3
Agencia Estatal de Investigación1
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior1
Deutscher Akademischer Austauschdienst1
International Atomic Energy Agency1
National Natural Science Foundation of China1
Natural Sciences and Engineering Research Council of Canada1