Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Total Citation Counts Rankings
Ranking Based On Selection :1
Hydrogeology
Hydrogeochemistry and Isotope Hydrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,212
843
0.696
* Total Citation Counts Rankings
Ranking Based On Selection :2
Petroleum Geochemistry
Environmental Geochemistry
Exploration Geochemistry
Organic Petrology &
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
908
707
0.779
* Total Citation Counts Rankings
Ranking Based On Selection :3
Engineering geology
Rock Mechanics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
530
459
0.866
* Total Citation Counts Rankings
Ranking Based On Selection :4
Palynology
Biostratigraphy
Paleoecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
289
211
0.730
* Total Citation Counts Rankings
Ranking Based On Selection :5
Geochemistry
Geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
289
186
0.644
* Total Citation Counts Rankings
Ranking Based On Selection :6
Applied Geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72
63
0.875
* Total Citation Counts Rankings
Ranking Based On Selection :7
Earth Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26
26
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :8
Geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11
11
1.000
Abel Ojo Talabi
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,212
843
0.696
Hydrogeology
Hydrogeochemistry and Isotope Hydrology
Segun A. Akinyemi
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
908
707
0.779
Petroleum Geochemistry
Environmental Geochemistry
Exploration Geochemistry
Organic Petrology &
Afolagboye Lekan Olatayo
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
530
459
0.866
Engineering geology
Rock Mechanics
Olajide Adebayo|O. F. Adebayo
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
289
211
0.730
Palynology
Biostratigraphy
Paleoecology
Romanus Obasi
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
289
186
0.644
Ojo Olufemi Felix
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72
63
0.875
Yusuf Abduraheem
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26
26
1.000
Oguntuase Mary Aderonke
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11
11
1.000