J.L. Orpen

570 total citations
8 papers, 411 citations indexed

About

J.L. Orpen is a scholar working on Geophysics, Geology and Paleontology. According to data from OpenAlex, J.L. Orpen has authored 8 papers receiving a total of 411 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Geophysics, 4 papers in Geology and 3 papers in Paleontology. Recurrent topics in J.L. Orpen's work include Geological and Geochemical Analysis (6 papers), Geological and Geophysical Studies (4 papers) and Paleontology and Stratigraphy of Fossils (3 papers). J.L. Orpen is often cited by papers focused on Geological and Geochemical Analysis (6 papers), Geological and Geophysical Studies (4 papers) and Paleontology and Stratigraphy of Fossils (3 papers). J.L. Orpen collaborates with scholars based in United Kingdom, Zimbabwe and United States. J.L. Orpen's co-authors include James F. Wilson, Paul N. Taylor, S. Moorbath, Peter J. Treloar, Alexis Martín, M. J. Bickle, C. J. Hawkesworth, E. G. Nisbet, Christopher J. Swain and A.R Gledhill and has published in prestigious journals such as Nature, Earth and Planetary Science Letters and Geology.

In The Last Decade

J.L. Orpen

8 papers receiving 376 citations

Peers

Countries citing papers authored by J.L. Orpen

Since Specialization

Citations

This map shows the geographic impact of J.L. Orpen'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 J.L. Orpen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J.L. Orpen more than expected).

Fields of papers citing papers by J.L. Orpen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J.L. Orpen. 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 J.L. Orpen. The network helps show where J.L. Orpen may publish in the future.

Co-authorship network of co-authors of J.L. Orpen

This figure shows the co-authorship network connecting the top 25 collaborators of J.L. Orpen. A scholar is included among the top collaborators of J.L. Orpen 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 J.L. Orpen. J.L. Orpen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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8 of 8 papers shown

#	Work	Indexed citations
1	Ensialic origin for the Ngezi Group, Belingwe greenstone belt, Zimbabwe: Comment and Reply 1994 ·Geology ·Timothy Kusky, (unknown), W. S. F. Kidd, Tom Blenkinsop, Christopher M. Fedo, M. J. Bickle, Kenneth A. Eriksson, (unknown), Euan Nisbet, James F. Wilson, J.L. Orpen	6
2	Pb/Pb, SmNd and RbSr geochronology in the Archean Craton of Zimbabwe 1991 ·Chemical Geology Isotope Geoscience section ·Paul N. Taylor, (unknown), (unknown), James F. Wilson, J.L. Orpen, Alexis Martín	69
3	Wrench-fault and half-graben tectonics in the development of the Palaeozoic Zambezi Karoo Basins in Zimbabwe — the “Lower Zambezi” and “Mid-Zambezi” basins respectively — and regional implications 1989 ·Journal of African Earth Sciences (and the Middle East) ·J.L. Orpen, Christopher J. Swain, (unknown), (unknown)	41
4	First direct radiometric dating of Archaean stromatolitic limestone 1987 ·Nature ·S. Moorbath, Paul N. Taylor, J.L. Orpen, Peter J. Treloar, James F. Wilson	131
5	Stromatolites at ∼3,500 Myr and a greenstone–granite unconformity in the Zimbabwean Archaean 1981 ·Nature ·J.L. Orpen, James F. Wilson	32
6	A 2.9-b.y. event in the Rhodesian Archaean 1979 ·Earth and Planetary Science Letters ·C. J. Hawkesworth, M. J. Bickle, A.R Gledhill, James F. Wilson, J.L. Orpen	32
7	Granite-greenstone terrains of the Rhodesian Archaean craton 1978 ·Nature ·James F. Wilson, J.L. Orpen, M. J. Bickle, C. J. Hawkesworth, Alexis Martín, E. G. Nisbet	73
8	Growth, condition and reproduction in the Impala ram (Aepyceros melampus) 1976 ·Journal of Zoology ·J. Hanks, David H. M. Cumming, J.L. Orpen, (unknown), (unknown)	27

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.

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