P.J. Grantham

1.3k total citations · 1 hit paper
8 papers, 1.0k citations indexed

About

P.J. Grantham is a scholar working on Mechanics of Materials, Analytical Chemistry and Geology. According to data from OpenAlex, P.J. Grantham has authored 8 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Mechanics of Materials, 7 papers in Analytical Chemistry and 4 papers in Geology. Recurrent topics in P.J. Grantham's work include Hydrocarbon exploration and reservoir analysis (8 papers), Petroleum Processing and Analysis (7 papers) and Geological Studies and Exploration (4 papers). P.J. Grantham is often cited by papers focused on Hydrocarbon exploration and reservoir analysis (8 papers), Petroleum Processing and Analysis (7 papers) and Geological Studies and Exploration (4 papers). P.J. Grantham collaborates with scholars based in Netherlands and United Kingdom. P.J. Grantham's co-authors include Laurie L. Wakefield, A.G. Douglas, K. de Groot, M. W. Hughes Clarke, R. J. Willink and A.G. Douglas and has published in prestigious journals such as Geochimica et Cosmochimica Acta, Chemical Geology and Organic Geochemistry.

In The Last Decade

P.J. Grantham

8 papers receiving 931 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Variations in the sterane carbon number distributions of marine source rock derived crude oils through geological time

1988 443 citations P.J. Grantham, Laurie L. Wakefield Organic Geochemistry profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
P.J. Grantham Netherlands	8	909	364	328	219	197	8	1.0k
Wallace G. Dow United States	9	911 1.0×	353 1.0×	211 0.6×	93 0.4×	224 1.1×	19	1.1k
R.P. Philp China	5	603 0.7×	129 0.4×	254 0.8×	57 0.3×	109 0.6×	10	726
R. J. Hwang United States	15	629 0.7×	118 0.3×	294 0.9×	53 0.2×	98 0.5×	23	766
Khaled R. Arouri Australia	14	545 0.6×	138 0.4×	151 0.5×	284 1.3×	123 0.6×	32	792
Thamer K. Al-Ameri Iraq	16	553 0.6×	263 0.7×	110 0.3×	206 0.9×	236 1.2×	43	799
Stephen R. Jacobson United States	13	388 0.4×	219 0.6×	103 0.3×	609 2.8×	71 0.4×	26	1.0k
Salah Y. El Beialy Egypt	18	515 0.6×	179 0.5×	93 0.3×	384 1.8×	182 0.9×	45	811
A.M.K. Wardroper United Kingdom	9	464 0.5×	100 0.3×	184 0.6×	76 0.3×	58 0.3×	9	622
Paweł Kosakowski Poland	17	748 0.8×	181 0.5×	111 0.3×	142 0.6×	143 0.7×	70	900
Jim Allan Netherlands	5	391 0.4×	86 0.2×	132 0.4×	116 0.5×	73 0.4×	6	474

Countries citing papers authored by P.J. Grantham

Since Specialization

Citations

This map shows the geographic impact of P.J. Grantham'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. Grantham 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. Grantham more than expected).

Fields of papers citing papers by P.J. Grantham

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

This figure shows the co-authorship network connecting the top 25 collaborators of P.J. Grantham. A scholar is included among the top collaborators of P.J. Grantham 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. Grantham. P.J. Grantham 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

1.

Grantham, P.J., et al.. (1990). Geochemistry of crude oils in Oman. Geological Society London Special Publications. 50(1). 317–328. 16 indexed citations

2.

Grantham, P.J. & Laurie L. Wakefield. (1988). Variations in the sterane carbon number distributions of marine source rock derived crude oils through geological time. Organic Geochemistry. 12(1). 61–73. 443 indexed citations breakdown →

3.

Grantham, P.J., et al.. (1988). ORIGIN OF CRUDE OILS IN OMAN. Journal of Petroleum Geology. 11(1). 61–80. 115 indexed citations

4.

Grantham, P.J.. (1986). Sterane isomerisation and moretane/hopane ratios in crude oils derived from Tertiary source rocks. Organic Geochemistry. 9(6). 293–304. 122 indexed citations

5.

Grantham, P.J.. (1986). The occurence of unusual C27 and C29 sterane predominances in two types of Oman crude oil. Organic Geochemistry. 9(1). 1–10. 138 indexed citations

6.

Grantham, P.J. & A.G. Douglas. (1980). The nature and origin of sesquiterpenoids in some tertiary fossil resins. Geochimica et Cosmochimica Acta. 44(11). 1801–1810. 109 indexed citations

7.

Grantham, P.J., et al.. (1980). Variation and significance of the C27 and C28 triterpane content of a North Sea core and various North Sea crude oils. Physics and Chemistry of the Earth. 12. 29–38. 81 indexed citations

8.

Douglas, A.G. & P.J. Grantham. (1973). Docosane in rock extracts: A possible contaminative source. Chemical Geology. 12(4). 249–255. 11 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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