Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
The timing and duration of the Karoo igneous event, southern Gondwana
1997469 citationsJulian S Marsh, A. R. Duncan et al.profile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
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This map shows the geographic impact of A. R. Duncan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by A. R. Duncan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites A. R. Duncan more than expected).
This network shows the impact of papers produced by A. R. Duncan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by A. R. Duncan. The network helps show where A. R. Duncan may publish in the future.
Co-authorship network of co-authors of A. R. Duncan
This figure shows the co-authorship network connecting the top 25 collaborators of A. R. Duncan.
A scholar is included among the top collaborators of A. R. Duncan based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with A. R. Duncan. A. R. Duncan is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Milner, S.C., A. R. Duncan, A. Ewart, & Julian S Marsh. (1994). Promotion of the Etendeka formation to group status: a new integrated stratigraphy. 9. 5–11.30 indexed citations
Reid, A. M., A. R. Duncan, & Anton le Roex. (1979). Petrogenetic Models for Eucrite Genesis. Lunar and Planetary Science Conference. 1022–1024.1 indexed citations
6.
Duncan, A. R., et al.. (1976). Source Region Constraints for Lunar Basalt Types Inferred from Trace Element Chemistry. Lunar and Planetary Science Conference. 7. 218.3 indexed citations
7.
Duncan, A. R., et al.. (1976). Some trace element constraints on lunar basalt genesis.. Lunar and Planetary Science Conference Proceedings. 2. 1659.18 indexed citations
8.
Duncan, A. R., et al.. (1975). Compositional Variability of the Apollo 15 Regolith. LPI. 6. 220.2 indexed citations
9.
Duncan, A. R., et al.. (1975). Interpretation of the compositional variability of Apollo 15 soils.. 2. 2309–2320.16 indexed citations
10.
Duncan, A. R., et al.. (1974). Trace Element Evidence for a Two Stage Origin of High-Titanium Mare Basalts. Lunar and Planetary Science Conference. 5. 187.3 indexed citations
11.
Duncan, A. R., et al.. (1974). Compositional Characteristics of the Apollo 17 Regolith. LPI. 5. 184.2 indexed citations
12.
Duncan, A. R., et al.. (1974). Trace element evidence for a two-stage origin of some titaniferous mare basalts.. Lunar and Planetary Science Conference Proceedings. 2. 1147–1157.30 indexed citations
13.
Duncan, A. R., et al.. (1973). Composition and inter-relationships of some Apollo 16 samples. Lunar and Planetary Science Conference Proceedings. 4. 1097.23 indexed citations
14.
Fruchter, J.S., et al.. (1973). Composition of Apollo 15 Clastic Materials and Their Relation to Local Geologic Features. LPI. 4. 269.1 indexed citations
15.
Lindstrom, M. M., et al.. (1972). Compositional characteristics of some Apollo 14 clastic materials.. Lunar and Planetary Science Conference Proceedings. 3. 1201.17 indexed citations
16.
Duncan, A. R., et al.. (1972). Comments on the Genesis of Breccia 14321. LPI. 3. 192.3 indexed citations
17.
Goleš, Gordon G., A. R. Duncan, David Lindström, et al.. (1971). Analyses of Apollo 12 specimens - Compositional variations, differentiation processes, and lunar soil mixing models. Lunar and Planetary Science Conference Proceedings. 2. 1063.30 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.