Michael D. Lewan

9.5k total citations · 3 hit papers
112 papers, 7.6k citations indexed

About

Michael D. Lewan is a scholar working on Mechanics of Materials, Analytical Chemistry and Global and Planetary Change. According to data from OpenAlex, Michael D. Lewan has authored 112 papers receiving a total of 7.6k indexed citations (citations by other indexed papers that have themselves been cited), including 103 papers in Mechanics of Materials, 45 papers in Analytical Chemistry and 33 papers in Global and Planetary Change. Recurrent topics in Michael D. Lewan's work include Hydrocarbon exploration and reservoir analysis (103 papers), Petroleum Processing and Analysis (45 papers) and Atmospheric and Environmental Gas Dynamics (33 papers). Michael D. Lewan is often cited by papers focused on Hydrocarbon exploration and reservoir analysis (103 papers), Petroleum Processing and Analysis (45 papers) and Atmospheric and Environmental Gas Dynamics (33 papers). Michael D. Lewan collaborates with scholars based in United States, Netherlands and France. Michael D. Lewan's co-authors include J. Barry Maynard, Maciej J. Kotarba, Arndt Schimmelmann, Robert P. Wintsch, Tim E. Ruble, Jaap S. Sinninghe Damsté, John C. Winters, John H. McDonald, Martin P. Koopmans and J.W. de Leeuw and has published in prestigious journals such as Nature, Science and Geochimica et Cosmochimica Acta.

In The Last Decade

Michael D. Lewan

107 papers receiving 7.1k 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.

Experiments on the role of water in petroleum formation

1997 567 citations Michael D. Lewan Geochimica et Cosmochimica Acta profile →
Factors controlling the proportionality of vanadium to nickel in crude oils

1984 423 citations Michael D. Lewan Geochimica et Cosmochimica Acta profile →
Factors controlling enrichment of vanadium and nickel in the bitumen of organic sedimentary rocks

1982 407 citations Michael D. Lewan et al. Geochimica et Cosmochimica Acta profile →

Peers

Countries citing papers authored by Michael D. Lewan

Since Specialization

Citations

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

Fields of papers citing papers by Michael D. Lewan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Michael D. Lewan

This figure shows the co-authorship network connecting the top 25 collaborators of Michael D. Lewan. A scholar is included among the top collaborators of Michael D. Lewan 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 Michael D. Lewan. Michael D. Lewan 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

#	Work	Indexed citations
1	Thermal stability of freshwater fern Azolla biomarkers as assessed by hydrous pyrolysis 2025 ·Organic Geochemistry ·Klaas G.J. Nierop, (unknown), (unknown), Michael D. Lewan, Eveline N. Speelman, J.W. de Leeuw, Gert‐Jan Reichart	0
2	Comment: Suppression of vitrinite reflectance by bitumen generated from liptinite during hydrous pyrolysis of artificial source rock by Peters et al. (2018) 2023 ·Organic Geochemistry ·Michael D. Lewan	1
3	Comment on Ideas and perspectives: is shale gas a major driver of recent increase in global atmospheric methane? by Robert W. Howarth (2019) 2020 ·Michael D. Lewan	2
4	Input-form data for the U.S. Geological Survey assessment of the Mississippian Barnett Shale of the Bend Arch-Fort Worth Basin Province, 2015 2016 ·Antarctica A Keystone in a Changing World ·Kristen R. Marra, Ronald R. Charpentier, Christopher J. Schenk, Michael D. Lewan, Heidi M. Leathers-Miller, Timothy R. Klett, Stephanie B. Gaswirth, Phuong A. Le, Tracey J. Mercier, Janet K. Pitman, Marilyn E. Tennyson	1
5	Assessment of undiscovered shale gas and shale oil resources in the Mississippian Barnett Shale, Bend Arch–Fort Worth Basin Province, North-Central Texas 2015 ·Fact sheet ·Kristen R. Marra, Ronald R. Charpentier, Christopher J. Schenk, Michael D. Lewan, Heidi M. Leathers-Miller, Timothy R. Klett, Stephanie B. Gaswirth, Phuong A. Le, Tracey J. Mercier, Janet K. Pitman, Marilyn E. Tennyson	5
6	Source rock potential of lignite and interbedded coaly shale of the Ogwashi–Asaba Formation, Anambra basin as determined by sequential hydrous pyrolysis 2015 ·International Journal of Coal Geology ·Samuel O. Akande, Michael D. Lewan, Sven Egenhoff, Olabisi A. Adekeye, Olusola J. Ojo, (unknown)	25
7	Generation of unusual branched long chain alkanes from hydrous pyrolysis of anammox bacterial biomass 2014 ·Organic Geochemistry ·Darci Rush, Andrea Jaeschke, Jan A. J. Geenevasen, Erik Tegelaar, J. Pureveen, Michael D. Lewan, Stefan Schouten, Jaap S. Sinninghe Damsté	9
8	Asphaltene content and composition as a measure of Deepwater Horizon oil spill losses within the first 80days 2014 ·Organic Geochemistry ·Michael D. Lewan, Augusta Warden, Robert F. Dias, (unknown), (unknown), Paul G. Lillis, Raymond F. Kokaly, Todd M. Hoefen, Gregg A. Swayze, Christopher T. Mills, Steve H. Harris, G. S. Plumlee	33
9	Assessment of undiscovered oil and gas resources in conventional and continuous petroleum systems in the Upper Cretaceous Eagle Ford Group, U.S. Gulf Coast region, 2011 2012 ·Fact sheet ·Russell F. Dubiel, Janet K. Pitman, Ofori N. Pearson, (unknown), (unknown), Michael D. Lewan, (unknown), (unknown), Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Richard M. Pollastro, Christopher J. Schenk	8
10	Assessment of undiscovered oil and gas resources of Libya and Tunisia, 2010 2011 ·Fact sheet ·Katherine J. Whidden, Michael D. Lewan, Christopher J. Schenk, (unknown), Troy A. Cook, Timothy R. Klett, Janet K. Pitman	3
11	Estimation of hydrous-pyrolysis kinetic parameters for oil generation from Baltic Cambrian and Tremadocian source rocks with Type-II kerogen 2010 ·Geological Quarterly ·Dariusz Więcław, Maciej J. Kotarba, Michael D. Lewan	10
12	Source of heavy oils and tars in the Athabasca Oil Sands based on geochemistry and 4-D basin modeling 2008 ·Geochimica et Cosmochimica Acta Supplement ·Michael D. Lewan, (unknown), Laura N.R. Roberts, Mitchell E. Henry	1
13	Evaluating transition-metal catalysis in gas generation from the Permian Kupferschiefer by hydrous pyrolysis 2008 ·Geochimica et Cosmochimica Acta ·Michael D. Lewan, Maciej J. Kotarba, Dariusz Więcław, Adam Piestrzyński	60
14	Timing of Oil and Gas Generation of Petroleum Systems in the Southwestern Wyoming Province 2004 ·The Mountain Geologist ·Laura N.R. Roberts, Michael D. Lewan, Thomas M. Finn	21
15	The New Albany Shale petroleum system, Illinois basin - Data and map image archive from the material-balance assessment 2003 ·Antarctica A Keystone in a Changing World ·Debra K. Higley, Mitchell E. Henry, Michael D. Lewan, Janet K. Pitman	2
16	Generation and migration of petroleum in Iraq: a 21/2D and 3D modeling study of Jurassic source rocks : compiled PowerPoint Slides 2003 ·Antarctica A Keystone in a Changing World ·Janet K. Pitman, Douglas W. Steinshouer, Michael D. Lewan	4
17	Deep Natural Gas Resources 2003 ·Natural Resources Research ·T.S. Dyman, (unknown), V.A. Kuuskraa, Michael D. Lewan, T. Cook	15
18	Preliminary data and age-correlation for extra rock samples (KG-25 to KG-47) in the Cooperative Monterey Organic Geochemistry Study, Santa Maria and Santa Barbara-Ventura basins, California 1993 ·Antarctica A Keystone in a Changing World ·Caroline M. Isaacs, (unknown), John A. Barron, David Bukry, Michael D. Lewan	1
19	[3]6 Primary Oil Migration and Expulsion as Determined by Hydrous Pyrolysis 1991 ·Michael D. Lewan	11
20	Evaluation of petroleum generation by hydrous phrolysis experimentation 1985 ·Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences ·Michael D. Lewan	337

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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