Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Architecture and Design, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciencesand Social Sciences and their 197 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
![Geoff Kilgour](https://cdn.adscientificindex.com/pictures/38/4408188.jpg)
Igneous petrology
physical volcanology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,411
1,067
0.756
* Last 6 Years Citation Counts Rankings
![Debra Chappell](https://cdn.adscientificindex.com/pictures/78/4408193.jpg)
Geochemistry
MIneralogy
Petrology
Geothermal
Environmental
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
737
241
0.327
Geoff Kilgour
GNS Science
Lower Hutt, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,411
1,067
0.756
Igneous petrology
physical volcanology
Debra Chappell
GNS Science
Lower Hutt, New Zealand
![New Zealand](/flags/nz.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
737
241
0.327
Geochemistry
MIneralogy
Petrology
Geothermal
Environmental