D. A. Spears

4.2k total citations
113 papers, 3.5k citations indexed

About

D. A. Spears is a scholar working on Geochemistry and Petrology, Geophysics and Artificial Intelligence. According to data from OpenAlex, D. A. Spears has authored 113 papers receiving a total of 3.5k indexed citations (citations by other indexed papers that have themselves been cited), including 62 papers in Geochemistry and Petrology, 31 papers in Geophysics and 29 papers in Artificial Intelligence. Recurrent topics in D. A. Spears's work include Coal and Its By-products (50 papers), Geochemistry and Geologic Mapping (29 papers) and Geological and Geochemical Analysis (28 papers). D. A. Spears is often cited by papers focused on Coal and Its By-products (50 papers), Geochemistry and Geologic Mapping (29 papers) and Geological and Geochemical Analysis (28 papers). D. A. Spears collaborates with scholars based in United Kingdom, Spain and Russia. D. A. Spears's co-authors include M. Rosa Martı́nez-Tarazona, C.A. Booth, Yuyan Zheng, R. Kanaris‐Sotiriou, C. D. Curtis, R. K. Taylor, S.I. Arbuzov, Colin R. Ward, Lila W. Gurba and Ian Staton and has published in prestigious journals such as Nature, Environmental Science & Technology and Geochimica et Cosmochimica Acta.

In The Last Decade

D. A. Spears

110 papers receiving 3.3k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
D. A. Spears United Kingdom	35	2.2k	840	712	643	618	113	3.5k
Yuzhuang Sun China	35	2.2k 1.0×	1.1k 1.3×	683 1.0×	497 0.8×	1.2k 1.9×	134	4.1k
J. L. Fernández-Turiel Spain	32	1.7k 0.8×	562 0.7×	645 0.9×	835 1.3×	196 0.3×	172	3.6k
Ian T. Graham Australia	38	3.5k 1.6×	1.3k 1.6×	1.7k 2.4×	467 0.7×	763 1.2×	139	4.9k
David L. Parkhurst United States	16	1.4k 0.6×	592 0.7×	454 0.6×	332 0.5×	714 1.2×	37	5.4k
Fariborz Goodarzi Canada	43	2.5k 1.1×	1.3k 1.5×	466 0.7×	1.1k 1.7×	2.5k 4.1×	207	5.5k
Xibo Wang China	27	3.7k 1.6×	1.6k 1.9×	627 0.9×	714 1.1×	655 1.1×	40	4.0k
Deolinda Flores Portugal	30	1.8k 0.8×	1.1k 1.3×	331 0.5×	433 0.7×	1.6k 2.5×	106	3.7k
Deyi Ren China	34	5.0k 2.2×	2.3k 2.7×	613 0.9×	1.5k 2.3×	937 1.5×	54	5.7k
Cortland F. Eble United States	34	2.4k 1.1×	1.3k 1.6×	595 0.8×	335 0.5×	1.3k 2.2×	144	4.0k

Countries citing papers authored by D. A. Spears

Since Specialization

Citations

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

Fields of papers citing papers by D. A. Spears

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D. A. Spears. 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 D. A. Spears. The network helps show where D. A. Spears may publish in the future.

Co-authorship network of co-authors of D. A. Spears

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Arbuzov, S.I., et al.. (2024). Tungsten (W) geochemistry in north Asian coals (Siberia, Russian far east and Kazakhstan). International Journal of Coal Geology. 295. 104639–104639.

Moore, Brandon C., et al.. (2016). Morphological characteristics regulating phallic glans engorgement in the American alligator. Integrative and Comparative Biology. 56(4). 657–668. 10 indexed citations

Arbuzov, S.I., et al.. (2015). Nature of tonsteins in the Azeisk deposit of the Irkutsk Coal Basin (Siberia, Russia). International Journal of Coal Geology. 153. 99–111. 69 indexed citations

López-Antón, M. Antonia, D. A. Spears, Mercedes Díaz‐Somoano, Luis F. Dı́az, & M. Rosa Martı́nez-Tarazona. (2015). Enrichment of thallium in fly ashes in a Spanish circulating fluidized-bed combustion plant. Fuel. 146. 51–55. 13 indexed citations

López-Antón, M. Antonia, D. A. Spears, Mercedes Díaz‐Somoano, & M. Rosa Martı́nez-Tarazona. (2012). Thallium in coal: Analysis and environmental implications. Fuel. 105. 13–18. 65 indexed citations

Liu, Qinfu, et al.. (2001). MAS NMR study of surface-modified calcined kaolin. Applied Clay Science. 19(1-6). 89–94. 56 indexed citations

Spears, D. A., et al.. (1994). Pyrite in UK coals: its environmental significance. Fuel. 73(7). 1051–1055. 44 indexed citations

Garcı́a, Ana B., et al.. (1993). The removal of trace elements from Spanish high-rank coals by a selective oil agglomeration process. Fuel. 72(5). 711–711. 10 indexed citations

Stamatakis, Michael, R. Kanaris‐Sotiriou, & D. A. Spears. (1991). Authigenic silica polymorphs and the geochemistry of pliocene siliceous swamp sediments of the Aridea volcanic province, Greece.. The Canadian Mineralogist. 29(3). 587–598. 8 indexed citations

10.

Spears, D. A., et al.. (1984). Kaolinite and mixed-layer illite–smectite in Lower Cretaceous bentonites from the Peace River coalfield, British Columbia. Canadian Journal of Earth Sciences. 21(4). 465–476. 14 indexed citations

11.

Spears, D. A.. (1982). The recognition of volcanic clays and the significance of heavy minerals. Clay Minerals. 17(3). 373–375. 4 indexed citations

12.

Spears, D. A. & R. Kanaris‐Sotiriou. (1979). A geochemical and mineralogical investigation of some British and other European tonsteins. Sedimentology. 26(3). 407–425. 103 indexed citations

13.

Spears, D. A.. (1979). Geochemical aspects of the Santonian Chalk of Ramsgate, England, and the origin of the chert and clay minerals. Mineralogical Magazine. 43(325). 159–164. 5 indexed citations

14.

Spears, D. A. & R. Kanaris‐Sotiriou. (1976). Titanium in some Carboniferous sediments from Great Britain. Geochimica et Cosmochimica Acta. 40(3). 345–351. 75 indexed citations

15.

Spears, D. A.. (1976). The fissility of some Carboniferous shales. Sedimentology. 23(5). 721–725. 18 indexed citations

16.

Spears, D. A.. (1975). MINERALOGY AND GEOCHEMISTRY OF SOME QUATERNARY DEPOSITS IN THE VALE OF YORK. Proceedings of the Yorkshire Geological Society. 40(3). 353–372. 3 indexed citations

17.

Spears, D. A. & Malcolm J. Reeves. (1975). The influence of superficial deposits on groundwater quality in the Vale of York. Quarterly Journal of Engineering Geology. 8(4). 255–269. 21 indexed citations

18.

Spears, D. A.. (1974). The RbSr age dating of some Carboniferous shales. Geochimica et Cosmochimica Acta. 38(2). 235–244. 2 indexed citations

19.

Curtis, C. D. & D. A. Spears. (1971). Diagenetic Development of Kaolinite. Clays and Clay Minerals. 19(4). 219–227. 37 indexed citations

20.

Taylor, R. K. & D. A. Spears. (1967). AN UNUSUAL CARBONATE BAND IN THE EAST PENNINE COALFIELD (ENGLAND). Sedimentology. 9(1). 55–73. 7 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.

Explore authors with similar magnitude of impact