P.J. Tonkin

620 total citations
17 papers, 492 citations indexed

About

P.J. Tonkin is a scholar working on Atmospheric Science, Soil Science and Environmental Engineering. According to data from OpenAlex, P.J. Tonkin has authored 17 papers receiving a total of 492 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Atmospheric Science, 5 papers in Soil Science and 4 papers in Environmental Engineering. Recurrent topics in P.J. Tonkin's work include Geology and Paleoclimatology Research (9 papers), Soil Geostatistics and Mapping (4 papers) and Pleistocene-Era Hominins and Archaeology (3 papers). P.J. Tonkin is often cited by papers focused on Geology and Paleoclimatology Research (9 papers), Soil Geostatistics and Mapping (4 papers) and Pleistocene-Era Hominins and Archaeology (3 papers). P.J. Tonkin collaborates with scholars based in New Zealand, Australia and United States. P.J. Tonkin's co-authors include Peter C. Almond, Les Basher, K. M. Goh, Peter W. Birkeland, Ralph R. Shroba, Graeme D. Buchan, Martin Manning, E. C. A. Runge, T.A. Rafter and R. Harrison and has published in prestigious journals such as Geoderma, Quaternary Science Reviews and Geomorphology.

In The Last Decade

P.J. Tonkin

17 papers receiving 459 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
P.J. Tonkin New Zealand	11	299	117	103	92	85	17	492
R. R. Arnett United Kingdom	5	328 1.1×	121 1.0×	105 1.0×	168 1.8×	66 0.8×	8	548
Armin Skowronek Germany	14	198 0.7×	144 1.2×	67 0.7×	87 0.9×	57 0.7×	23	456
Helaine W. Markewich United States	12	305 1.0×	78 0.7×	125 1.2×	210 2.3×	49 0.6×	29	532
Arno Kleber Germany	13	230 0.8×	76 0.6×	69 0.7×	94 1.0×	96 1.1×	35	424
Dennis Dahms United States	18	547 1.8×	147 1.3×	105 1.0×	217 2.4×	95 1.1×	34	743
John C. Frye United States	12	337 1.1×	52 0.4×	135 1.3×	163 1.8×	53 0.6×	60	553
J. W. Hawley United States	10	170 0.6×	82 0.7×	63 0.6×	104 1.1×	24 0.3×	21	428
Leland H. Gile United States	13	417 1.4×	144 1.2×	130 1.3×	276 3.0×	28 0.3×	29	677
Christian Reinhardt‐Imjela Germany	12	332 1.1×	70 0.6×	126 1.2×	126 1.4×	62 0.7×	26	590
P.D. Jungerius Netherlands	5	317 1.1×	196 1.7×	160 1.6×	382 4.2×	32 0.4×	6	615

Countries citing papers authored by P.J. Tonkin

Since Specialization

Citations

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

Fields of papers citing papers by P.J. Tonkin

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of P.J. Tonkin

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

All Works

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17 of 17 papers shown

Alloway, Brent V., Peter C. Almond, Patricio I. Moreno, et al.. (2018). Mid-latitude trans-Pacific reconstructions and comparisons of coupled glacial/interglacial climate cycles based on soil stratigraphy of cover-beds. Quaternary Science Reviews. 189. 57–75. 13 indexed citations

Roering, Joshua J., Peter C. Almond, P.J. Tonkin, & J. A. McKean. (2004). Constraining climatic controls on hillslope dynamics using a coupled model for the transport of soil and tracers: Application to loess-mantled hillslopes, Charwell River, South Island, New Zealand. 7 indexed citations

Birkeland, Peter W., et al.. (2003). Integrating soils and geomorphology in mountains—an example from the Front Range of Colorado. Geomorphology. 55(1-4). 329–344. 125 indexed citations

Tonkin, P.J. & Les Basher. (2001). Soil chronosequences in subalpine superhumid Cropp Basin, western Southern Alps, New Zealand. New Zealand Journal of Geology and Geophysics. 44(1). 37–45. 24 indexed citations

Almond, Peter C. & P.J. Tonkin. (1999). Pedogenesis by upbuilding in an extreme leaching and weathering environment, and slow loess accretion, south Westland, New Zealand. Geoderma. 92(1-2). 1–36. 78 indexed citations

Tonkin, P.J., et al.. (1998). The recognition and interpretation of aggradational and multisequal soils from different depositional environments: Some New Zealand examples. Quaternary International. 51-52. 47–47. 1 indexed citations

Harrison, R., R. S. Swift, & P.J. Tonkin. (1994). A study of two soil development sequences located in a montane area of Canterbury, New Zealand, III. Soil phosphorus transformations. Geoderma. 61(3-4). 151–163. 5 indexed citations

Gillespie, Richard, K. M. Goh, P.J. Tonkin, et al.. (1992). AMS Dating of a Late Quaternary Tephra at Graham's Terrace, New Zealand. Radiocarbon. 34(1). 21–27. 29 indexed citations

Goh, K. M., et al.. (1991). Chemical pretreatments for improving the radiocarbon dates of peats and organic silts in a gley podzol environment: Grahams Terrace, North Westland. New Zealand Journal of Geology and Geophysics. 34(2). 191–194. 54 indexed citations

10.

Harrison, R., R. S. Swift, & P.J. Tonkin. (1991). A study of two soil development sequences located in a montane area of Canterbury, New Zealand. II. soil development indices based on major element analyses. Geoderma. 48(1-2). 163–177. 3 indexed citations

11.

Buchan, Graeme D., et al.. (1990). Estimation of field capacity and wilting point of some New Zealand soils from their saturation percentages. New Zealand Journal of Crop and Horticultural Science. 18(4). 241–246. 44 indexed citations

12.

Harrison, R., R. S. Swift, A. S. Campbell, & P.J. Tonkin. (1990). A study of two soil development sequences located in a montane area of Canterbury, New Zealand, I. Clay mineralogy and cation exchange properties. Geoderma. 47(3-4). 261–282. 13 indexed citations

13.

Tonkin, P.J. & Les Basher. (1990). Soil-stratigraphic techniques in the study of soil and landform evolution across the Southern Alps, New Zealand. Geomorphology. 3(3-4). 547–575. 35 indexed citations

14.

Goh, K. M., P.J. Tonkin, & T.A. Rafter. (1978). Implications of improved radiocarbon dates of Timaru peats on Quaternary loess stratigraphy. New Zealand Journal of Geology and Geophysics. 21(4). 463–466. 25 indexed citations

15.

Tonkin, P.J., et al.. (1974). A Study of Late Pleistocene Loess Deposits, South Canterbury, New Zealand Part II. Paleosols and their Stratigraphic Implications. Quaternary Research. 4(2). 217–231. 30 indexed citations

16.

O’Connor, M.B., et al.. (1973). FERTILIZER AND STOCKING RATES ON TWO KING COUNTRY SOILS. Proceedings of the New Zealand Grassland Association. 63–76. 5 indexed citations

17.

Bayliss, Peter, et al.. (1968). An occurrence of todorokite in the deuteric stage of a basalt. Mineralogical Magazine and Journal of the Mineralogical Society. 36(282). 757–760. 1 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.

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