Tom N. Clifford

918 total citations
26 papers, 638 citations indexed

About

Tom N. Clifford is a scholar working on Geophysics, Artificial Intelligence and Geochemistry and Petrology. According to data from OpenAlex, Tom N. Clifford has authored 26 papers receiving a total of 638 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Geophysics, 16 papers in Artificial Intelligence and 6 papers in Geochemistry and Petrology. Recurrent topics in Tom N. Clifford's work include Geological and Geochemical Analysis (24 papers), Geochemistry and Geologic Mapping (16 papers) and Clay minerals and soil interactions (3 papers). Tom N. Clifford is often cited by papers focused on Geological and Geochemical Analysis (24 papers), Geochemistry and Geologic Mapping (16 papers) and Clay minerals and soil interactions (3 papers). Tom N. Clifford collaborates with scholars based in South Africa, United Kingdom and Austria. Tom N. Clifford's co-authors include A.J. Burger, D. C. Rex, E. F. Stumpfl, Erika S. Barton, O. von Knorring, T.S. McCarthy, Roy McG. Miller, C. Mark Fanning, L. O. Nicolaysen and H. L. Allsopp and has published in prestigious journals such as Geochimica et Cosmochimica Acta, Earth and Planetary Science Letters and Contributions to Mineralogy and Petrology.

In The Last Decade

Tom N. Clifford

26 papers receiving 547 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Tom N. Clifford South Africa	15	582	335	116	75	57	26	638
J. Lameyre France	13	932 1.6×	422 1.3×	106 0.9×	53 0.7×	65 1.1×	21	982
J. A. Hallberg Australia	17	579 1.0×	369 1.1×	126 1.1×	70 0.9×	69 1.2×	21	646
J. Dostal Canada	14	914 1.6×	330 1.0×	143 1.2×	126 1.7×	39 0.7×	24	953
Pierre Thonon France	5	655 1.1×	287 0.9×	82 0.7×	68 0.9×	46 0.8×	9	686
A.J. Burger South Africa	15	602 1.0×	404 1.2×	96 0.8×	97 1.3×	143 2.5×	24	672
D. R. C. Kempe United Kingdom	11	618 1.1×	224 0.7×	140 1.2×	106 1.4×	44 0.8×	29	699
Martin R. Sharpe South Africa	13	893 1.5×	575 1.7×	144 1.2×	52 0.7×	130 2.3×	16	934
Brian Robins Norway	15	708 1.2×	364 1.1×	101 0.9×	98 1.3×	96 1.7×	33	776
C. R. Neary United Kingdom	11	1.0k 1.7×	279 0.8×	102 0.9×	36 0.5×	39 0.7×	15	1.1k
P. Raase Germany	12	794 1.4×	259 0.8×	76 0.7×	33 0.4×	34 0.6×	25	845

Countries citing papers authored by Tom N. Clifford

Since Specialization

Citations

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

Fields of papers citing papers by Tom N. Clifford

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Tom N. Clifford. 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 Tom N. Clifford. The network helps show where Tom N. Clifford may publish in the future.

Co-authorship network of co-authors of Tom N. Clifford

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

All Works

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20 of 20 papers shown

Clifford, Tom N. & Erika S. Barton. (2012). The O’okiep Copper District, Namaqualand, South Africa: a review of the geology with emphasis on the petrogenesis of the cupriferous Koperberg Suite. Mineralium Deposita. 47(8). 837–857. 16 indexed citations

Clifford, Tom N.. (2008). The geology of the Neoproterozoic Swakop-Otavi transition zone in the Outjo District, northern Damara Orogen, Namibia. South African Journal of Geology. 111(1). 117–140. 15 indexed citations

Duchesne, Jean‐Clair, Jacqueline Vander Auwera, Jean-Paul Liégeois, Erika S. Barton, & Tom N. Clifford. (2007). Geochemical constraints of the petrogenesis of the O’okiep Koperberg Suite and granitic plutons in Namaqualand, South Africa: A crustal source in Namaquan (Grenville) times. Precambrian Research. 153(1-2). 116–142. 17 indexed citations

Clifford, Tom N., et al.. (1995). A Crustal Progenitor for the Intrusive Anorthosite—Charnockite Kindred of the Cupriferous Koperberg Suite, O'okiep District, Namaqualand, South Africa; New Isotope Data for the Country Rocks and the Intrusives. Journal of Petrology. 36(1). 231–258. 49 indexed citations

Clifford, Tom N., et al.. (1981). Mineral-chemical and isotopic studies of Namaqualand granulites, South Africa: A grenville analogue. Contributions to Mineralogy and Petrology. 77(3). 225–250. 62 indexed citations

Burger, A.J., Tom N. Clifford, & Roy McG. Miller. (1976). Zircon U-Pb ages of the Franzfontein granitic suite, northern South West Africa. Precambrian Research. 3(5). 415–431. 34 indexed citations

Clifford, Tom N.. (1975). The earth's deeper crust: case histories from Africa. Annales de la Société géologique de Belgique. 1 indexed citations

Clifford, Tom N., et al.. (1975). Geochronological and Petrogenetic Studies of High-Grade Metamorphic Rocks and Intrusives in Namaqualand, South Africa. Journal of Petrology. 16(1). 154–188. 59 indexed citations

Kennedy, W. Q., Tom N. Clifford, & I. G. Gass. (1970). African magmatism and tectonics : a volume in honour of W.Q. Kennedy. 2 indexed citations

10.

Clifford, Tom N.. (1969). Internal features of some orogenic belts of Africa. Geological Society London Special Publications. 3(1). 285–287. 1 indexed citations

11.

Clifford, Tom N., et al.. (1969). Petrochemistry and age of the Franzfontein granitic rocks of northern South-West Africa. Geochimica et Cosmochimica Acta. 33(8). 973–986. 15 indexed citations

12.

Clifford, Tom N., D. C. Rex, & N. J. Snelling. (1967). Radiometric age data for the Urungwe and Miami granites of Rhodesia. Earth and Planetary Science Letters. 2(1). 5–12. 8 indexed citations

13.

Clifford, Tom N.. (1967). 92 : The Damaran Episode in the Upper Proterozoic—Lower Paleozoic Structural History of Southern Africa. 2 indexed citations

14.

Clifford, Tom N.. (1966). Tectono-metallogenic units and metallogenic provinces of Africa. Earth and Planetary Science Letters. 1(6). 421–434. 115 indexed citations

15.

Clifford, Tom N., L. O. Nicolaysen, & A.J. Burger. (1962). Petrology and Age of the Pre-Otavi Basement Granite at Franzfontein, Northern South-West Africa. Journal of Petrology. 3(2). 244–279. 20 indexed citations

16.

Knorring, O. von & Tom N. Clifford. (1960). On a skarn monazite occurrence from the Namib desert near Usakos, South-West Africa. Mineralogical Magazine and Journal of the Mineralogical Society. 32(251). 650–653. 7 indexed citations

17.

Clifford, Tom N.. (1959). A preliminary note on chromian mica in an anlceritequartz- pyrite rock from southern Ross-shire, Scotland. Mineralogical Magazine and Journal of the Mineralogical Society. 32(245). 178–180. 3 indexed citations

18.

Clifford, Tom N.. (1958). A note on kyanite in the Moine Series of Southern Ross-shire, and a review of related rocks in the Northern Highlands of Scotland. Geological Magazine. 95(4). 333–346. 9 indexed citations

19.

Clifford, Tom N.. (1957). Fuchsite from a Silurian (?) Quartz Conglomerate, Acworth Township, New Hampshire. American Mineralogist. 42. 566–568. 4 indexed citations

20.

Clifford, Tom N.. (1957). The stratigraphy and structure of part of the Kintail district of southern Ross-shire : Its relation to the Northern Highlands. Quarterly Journal of the Geological Society. 113(1-4). 57–92. 43 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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