S. A. de Waal

1.0k total citations
32 papers, 864 citations indexed

About

S. A. de Waal is a scholar working on Geophysics, Artificial Intelligence and Geochemistry and Petrology. According to data from OpenAlex, S. A. de Waal has authored 32 papers receiving a total of 864 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Geophysics, 19 papers in Artificial Intelligence and 6 papers in Geochemistry and Petrology. Recurrent topics in S. A. de Waal's work include Geological and Geochemical Analysis (25 papers), Geochemistry and Geologic Mapping (19 papers) and earthquake and tectonic studies (9 papers). S. A. de Waal is often cited by papers focused on Geological and Geochemical Analysis (25 papers), Geochemistry and Geologic Mapping (19 papers) and earthquake and tectonic studies (9 papers). S. A. de Waal collaborates with scholars based in South Africa, United States and Australia. S. A. de Waal's co-authors include Chusi Li, Wolfgang D. Maier, Christoph Gauert, C. J. Hatton, J. K. Schweitzer, Pavel Pitra, T. Wallmach, Wolfgang Maier, Edward M. Ripley and Hassina Mouri and has published in prestigious journals such as Journal of Petrology, American Mineralogist and Economic Geology.

In The Last Decade

S. A. de Waal

32 papers receiving 814 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
S. A. de Waal South Africa	18	772	518	117	48	36	32	864
J. Rose-Hansen Denmark	16	826 1.1×	558 1.1×	162 1.4×	111 2.3×	21 0.6×	37	967
M. Ohnenstetter France	17	883 1.1×	356 0.7×	129 1.1×	31 0.6×	16 0.4×	32	961
T C Birkett Canada	14	855 1.1×	467 0.9×	124 1.1×	57 1.2×	29 0.8×	21	936
JH Robinson United Kingdom	9	1.1k 1.4×	329 0.6×	90 0.8×	30 0.6×	19 0.5×	14	1.2k
A. V. Girnis Russia	21	1.4k 1.8×	362 0.7×	102 0.9×	47 1.0×	53 1.5×	59	1.4k
Kamal Lochan Pruseth India	17	881 1.1×	468 0.9×	168 1.4×	23 0.5×	25 0.7×	46	984
Timothy J. B. Holland United Kingdom	8	1.2k 1.6×	446 0.9×	76 0.6×	41 0.9×	105 2.9×	9	1.3k
Alan R. Woolley United Kingdom	14	709 0.9×	319 0.6×	147 1.3×	20 0.4×	49 1.4×	18	789
R. K. W. Merkle South Africa	14	528 0.7×	383 0.7×	172 1.5×	24 0.5×	19 0.5×	50	713
Zhu Jinchu China	24	1.5k 1.9×	735 1.4×	264 2.3×	62 1.3×	35 1.0×	46	1.5k

Countries citing papers authored by S. A. de Waal

Since Specialization

Citations

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

Fields of papers citing papers by S. A. de Waal

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by S. A. de Waal. 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 S. A. de Waal. The network helps show where S. A. de Waal may publish in the future.

Co-authorship network of co-authors of S. A. de Waal

This figure shows the co-authorship network connecting the top 25 collaborators of S. A. de Waal. A scholar is included among the top collaborators of S. A. de Waal 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 S. A. de Waal. S. A. de Waal 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

Maier, Wolfgang D., Chusi Li, & S. A. de Waal. (2001). WHY ARE THERE NO MAJOR Ni Cu SULFIDE DEPOSITS IN LARGE LAYERED MAFIC-ULTRAMAFIC INTRUSIONS?. The Canadian Mineralogist. 39(2). 547–556. 48 indexed citations

Li, Chusi, Wolfgang Maier, & S. A. de Waal. (2001). Magmatic Ni-Cu versus PGE deposits: Contrasting genetic controls and exploration implications. South African Journal of Geology. 104(4). 309–318. 62 indexed citations

Waal, S. A. de. (2000). The age of the Marble Hall diorite, its relationship to the Uitkomst Complex, and evidence for a new magma type associated with the Bushveld igneous event. South African Journal of Geology. 103(2). 128–140. 27 indexed citations

Maier, Wolfgang D., Sarah‐Jane Barnes, & S. A. de Waal. (1998). Exploration for magmatic Ni-Cu-PGE sulphide deposits; a review of recent advances in the use of geochemical tools, and their application to some South African ores. South African Journal of Geology. 101(3). 237–253. 45 indexed citations

Waal, S. A. de, et al.. (1998). Albitite from the West Driefontein Mine, South Africa. South African Journal of Geology. 101(1). 39–51. 1 indexed citations

Waal, S. A. de & Christoph Gauert. (1997). The Basal Gabbro Unit and the identity of the parental magma of the Uitkomst Complex, Badplaas, South Africa. South African Journal of Geology. 100(4). 349–361. 14 indexed citations

Schweitzer, J. K., C. J. Hatton, & S. A. de Waal. (1997). Link between the granitic and volcanic rocks of the Bushveld Complex, South Africa. Journal of African Earth Sciences. 24(1-2). 95–104. 34 indexed citations

Schweitzer, J. K., C. J. Hatton, & S. A. de Waal. (1995). Regional lithochemical stratigraphy of the Rooiberg Group, upper Transvaal Supergroup; a proposed new subdivision. South African Journal of Geology. 98(3). 245–255. 42 indexed citations

Schweitzer, J. K., C. J. Hatton, & S. A. de Waal. (1995). Economic potential of the Rooiberg Group: volcanic rocks in the floor and roof of the Bushveld Complex. Mineralium Deposita. 30(2). 168–177. 13 indexed citations

10.

Gauert, Christoph, S. A. de Waal, & T. Wallmach. (1995). Geology of the ultrabasic to basic Uitkomst complex, eastern Transvaal, South Africa: an overview. Journal of African Earth Sciences. 21(4). 553–570. 53 indexed citations

11.

Wallmach, T., C. J. Hatton, S. A. de Waal, & Roger L. Gibson. (1995). Retrogressive hydration of calc-silicate xenoliths in the eastern Bushveld complex: evidence for late magmatic fluid movement. Journal of African Earth Sciences. 21(4). 633–646. 16 indexed citations

12.

Waal, S. A. de. (1981). Neoformed supergene sphalerite and possible precipitation control by gahnite. Bulletin de Minéralogie. 104(6). 732–736. 3 indexed citations

13.

Waal, S. A. de & Lewis C. Calk. (1973). Nickel minerals from Barberton, South Africa: VI. Liebenbergite, a nickel olivine. American Mineralogist. 58. 733–735. 17 indexed citations

14.

Waal, S. A. de. (1972). Nickel Minerals from Barberton, South Africa: V. Trevorite, Redescribed. American Mineralogist. 57. 1524–1527. 7 indexed citations

15.

Waal, S. A. de. (1972). The Bushveld granites in the Zaaiplaats area. South African Journal of Geology. 75(2). 135–147. 8 indexed citations

16.

Waal, S. A. de. (1972). INTERRELATION OF THE CHEMICAL, PHYSICAL, AND CERTAIN METALLURGICAL PROPERTIES OF CHROME SPINELS FROM THE BUSHVELD IGNEOUS COMPLEX.. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 2 indexed citations

17.

Waal, S. A. de, et al.. (1971). Nickel Minerals from Barberton, South Africa: Iv. Reevesite, A Member of the Hydrotalcite Group. American Mineralogist. 56. 1077–1081. 23 indexed citations

18.

Waal, S. A. de. (1970). Nickel minerals from Barberton, South Africa: II. Nimite, A nickel-rich chlorite. American Mineralogist. 55. 18–30. 10 indexed citations

19.

Waal, S. A. de. (1970). Nickel minerals from Barberton, South Africa: III. Willemseite, A nickel-rich talc. American Mineralogist. 55. 31–42. 15 indexed citations

20.

Waal, S. A. de. (1969). Nickel minerals from Barberton, South Africa: I. Ferroan Trevorite. American Mineralogist. 54. 1204–1208. 6 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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