Justin I. Simon

4.0k total citations
74 papers, 1.9k citations indexed

About

Justin I. Simon is a scholar working on Astronomy and Astrophysics, Geophysics and Ecology. According to data from OpenAlex, Justin I. Simon has authored 74 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 52 papers in Astronomy and Astrophysics, 23 papers in Geophysics and 19 papers in Ecology. Recurrent topics in Justin I. Simon's work include Astro and Planetary Science (49 papers), Planetary Science and Exploration (32 papers) and Geological and Geochemical Analysis (19 papers). Justin I. Simon is often cited by papers focused on Astro and Planetary Science (49 papers), Planetary Science and Exploration (32 papers) and Geological and Geochemical Analysis (19 papers). Justin I. Simon collaborates with scholars based in United States, United Kingdom and Japan. Justin I. Simon's co-authors include Donald J. DePaolo, Edward Young, M. R. Reid, Paul R. Renne, Roland Mundil, Tomohiro Usui, J. H. Jones, C. M. O'd. Alexander, Jianhua Wang and Frédéric Moynier and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Nature Communications.

In The Last Decade

Justin I. Simon

68 papers receiving 1.9k citations

Peers

Justin I. Simon
Beda A. Hofmann Switzerland
H. Nekvasil United States
C. Göpel France
M. Touboul United States
R. D. Ash United States
M. Yu. Zolotov United States
J. Zipfel Germany
A. H. Peslier United States
Beda A. Hofmann Switzerland
Justin I. Simon
Citations per year, relative to Justin I. Simon Justin I. Simon (= 1×) peers Beda A. Hofmann

Countries citing papers authored by Justin I. Simon

Since Specialization
Citations

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

Fields of papers citing papers by Justin I. Simon

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Justin I. Simon. 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 Justin I. Simon. The network helps show where Justin I. Simon may publish in the future.

Co-authorship network of co-authors of Justin I. Simon

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

All Works

20 of 20 papers shown
1.
Simon, Justin I., et al.. (2026). Constraints on the impactor flux to the Earth–Moon system from oxygen isotopes of the lunar regolith. Proceedings of the National Academy of Sciences. 123(4). e2531796123–e2531796123.
2.
Mishra, R. K., K. K. Marhas, Justin I. Simon, Yves Marrocchi, & Johan Villeneuve. (2025). Petrography and isotopic studies of refractory inclusions and Al‐rich chondrules in Semarkona, ALHA81251 , and Chainpur unequilibrated ordinary chondrites. Meteoritics and Planetary Science. 60(12). 2784–2810. 1 indexed citations
3.
Shollenberger, Quinn R., Jan Render, Josh Wimpenny, et al.. (2025). Elemental and isotopic signatures of Asteroid Ryugu support three early Solar System reservoirs. Earth and Planetary Science Letters. 664. 119443–119443.
4.
Tice, Michael M., J. A. Hurowitz, K. L. Siebach, et al.. (2024). Regional Paleoenvironments Recorded in Sedimentary Rocks of the Western Fan-Delta, Jezero Crater, Mars. SPIRE - Sciences Po Institutional REpository. 1 indexed citations
5.
Simon, Justin I., J. N. Cuzzi, Kaitlyn A. McCain, et al.. (2018). Particle size distributions in chondritic meteorites: Evidence for pre-planetesimal histories. Earth and Planetary Science Letters. 494. 69–82. 32 indexed citations
6.
Kohl, I. E., et al.. (2017). Ti Isotopes: Echoes of Grain-Scale Heterogenaity in the Protoplanetary Disk. Lunar and Planetary Science Conference. 3032. 2 indexed citations
7.
Simon, Justin I., et al.. (2017). Low to Extremely Low Water Abundances Measured in Nominally Anhydrous Minerals in Mafic to Granitic Apollo Rock Clasts. Lunar and Planetary Science Conference. 1248. 1 indexed citations
8.
Simon, Justin I., et al.. (2016). Calcium and Titanium Isotope Fractionation in CAIS: Tracers of Condensation and Inheritance in the Early Solar Protoplanetary Disk. Lunar and Planetary Science Conference. 1397. 2 indexed citations
9.
Ross, D. K., Justin I. Simon, S. B. Simon, & L. Grossman. (2015). Two Generations of Sodic Metasomatism in an Allende Type B CAI. NASA STI Repository (National Aeronautics and Space Administration). 2552. 1 indexed citations
10.
Matzel, J., Bo Holm Jacobsen, & Justin I. Simon. (2015). Aluminum-Magnesium Chronology of the Rim of a Murchison Type A CAI. LPICo. 78(1856). 5372. 1 indexed citations
11.
Usui, Tomohiro, Justin I. Simon, J. H. Jones, et al.. (2015). Hydrogen Isotopes Record the History of the Martian Hydrosphere and Atmosphere. Lunar and Planetary Science Conference. 1593. 1 indexed citations
12.
Matzel, J., Justin I. Simon, I. D. Hutcheon, et al.. (2013). Oxygen Isotope Measurements of a Rare Murchison Type A CAI and its Rim. NASA STI Repository (National Aeronautics and Space Administration). 2632. 8 indexed citations
13.
Srinivasan, Poorna, Justin I. Simon, & Jeffrey N. Cuzzi. (2013). Refractory Inclusion Size Distribution and Fabric Measured in a Large Slab of the Allende CV3 Chondrite. NASA STI Repository (National Aeronautics and Space Administration). 2580.
14.
Ross, D. K., Justin I. Simon, S. B. Simon, & L. Grossman. (2012). Ca-Fe and Alkali-Halide Alteration of an Allende Type B CAI: Aqueous Alteration in Nebular or Asteroidal Settings. 2466. 1 indexed citations
15.
Simon, Justin I., J. Matzel, S. B. Simon, et al.. (2012). Coordinated Oxygen Isotopic and Petrologic Studies of CAIS Record Varying Composition of Protosolar. 1340. 3 indexed citations
16.
Morgan, Leah E., Nicholas S. Lloyd, R. M. Ellam, & Justin I. Simon. (2012). Potassium Stable Isotopic Compositions Measured by High-Resolution MC-ICP-MS. 2012. 4 indexed citations
17.
Simon, Justin I., et al.. (2010). A RECORD OF SOLAR SYSTEM SCALE VARIATION IN OXYGEN ISOTOPES AT THE MICROSCALE: COSMOCHEMICAL ORIGINS OF CAIS AND THEIR WARK-LOVERING RIMS.. LPI. 1540. 2 indexed citations
18.
Matzel, J., H. A. Ishii, D. J. Joswiak, et al.. (2009). Mg Isotope Measurements of a Stardust CAI: No Evidence of 26Al. Meteoritics and Planetary Science Supplement. 72. 5373. 1 indexed citations
19.
Simon, Justin I. & Donald J. DePaolo. (2007). Calcium Isotope Heterogeneity Among Planetary Objects. AGUFM. 2007. 1 indexed citations
20.
Simon, Justin I. & Edward Young. (2007). Evaporation and Mg Isotope Fractionation: Model Constraints for CAIs. Lunar and Planetary Science Conference. 2424. 2 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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