Rachel Y. Sheppard

421 total citations
23 papers, 246 citations indexed

About

Rachel Y. Sheppard is a scholar working on Astronomy and Astrophysics, Paleontology and Geochemistry and Petrology. According to data from OpenAlex, Rachel Y. Sheppard has authored 23 papers receiving a total of 246 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Astronomy and Astrophysics, 4 papers in Paleontology and 4 papers in Geochemistry and Petrology. Recurrent topics in Rachel Y. Sheppard's work include Planetary Science and Exploration (15 papers), Astro and Planetary Science (12 papers) and Paleontology and Stratigraphy of Fossils (4 papers). Rachel Y. Sheppard is often cited by papers focused on Planetary Science and Exploration (15 papers), Astro and Planetary Science (12 papers) and Paleontology and Stratigraphy of Fossils (4 papers). Rachel Y. Sheppard collaborates with scholars based in United States, France and Switzerland. Rachel Y. Sheppard's co-authors include R. E. Milliken, Frank P. Deane, Joseph Ciarrochi, A. C. Pascuzzo, Brandon Johnson, Elizabeth A. Fisher, M. Parente, Yuki Itoh, A. A. Fraeman and M. T. Thorpe and has published in prestigious journals such as Chemical Geology, Geological Society of America Bulletin and Palaeogeography Palaeoclimatology Palaeoecology.

In The Last Decade

Rachel Y. Sheppard

20 papers receiving 245 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Rachel Y. Sheppard United States 9 121 56 35 29 25 23 246
Jianxun Shen China 12 106 0.9× 35 0.6× 27 0.8× 9 0.3× 77 3.1× 34 276
Thomas Cornet France 14 311 2.6× 172 3.1× 22 0.6× 18 0.6× 19 0.8× 40 434
F. Lefèvre France 5 26 0.2× 66 1.2× 26 0.7× 9 0.3× 17 0.7× 7 275
C. D. Ball United States 10 25 0.2× 36 0.6× 6 0.2× 14 0.5× 11 0.4× 20 349
D. M. Hurwitz United States 13 587 4.9× 247 4.4× 9 0.3× 9 0.3× 33 1.3× 30 701
C. L. Smith Canada 12 353 2.9× 88 1.6× 27 0.8× 42 1.4× 56 2.2× 44 556
J. Wesley Robbins United States 9 43 0.4× 389 6.9× 55 1.6× 11 0.4× 14 0.6× 31 663
Mohammed Halawani Saudi Arabia 13 30 0.2× 76 1.4× 101 2.9× 5 0.2× 12 0.5× 19 524
Gary D. Rosenberg United States 8 53 0.4× 86 1.5× 13 0.4× 4 0.1× 137 5.5× 24 454
John B. Reid United States 13 136 1.1× 117 2.1× 102 2.9× 5 0.2× 36 1.4× 26 760

Countries citing papers authored by Rachel Y. Sheppard

Since Specialization
Citations

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

Fields of papers citing papers by Rachel Y. Sheppard

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Rachel Y. Sheppard. 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 Rachel Y. Sheppard. The network helps show where Rachel Y. Sheppard may publish in the future.

Co-authorship network of co-authors of Rachel Y. Sheppard

This figure shows the co-authorship network connecting the top 25 collaborators of Rachel Y. Sheppard. A scholar is included among the top collaborators of Rachel Y. Sheppard 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 Rachel Y. Sheppard. Rachel Y. Sheppard 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.
Sheppard, Rachel Y., et al.. (2025). The effect of clay minerals on Li in martian groundwater simulant. Icarus. 443. 116769–116769.
2.
Sheppard, Rachel Y., A. B. Bryk, V. Z. Sun, et al.. (2025). Diagenetic Features Reveal the Influence of the Greenheugh Pediment on the Alteration History of Gale Crater, Mars. Journal of Geophysical Research Planets. 130(4). 1 indexed citations
3.
Sheppard, Rachel Y., D. Loizeau, A. A. Fraeman, et al.. (2025). Mg-sulfate can spectrally obscure siderite: implications for martian surface carbonates. Frontiers in Astronomy and Space Sciences. 12.
4.
Rice, M. S., W. H. Farrand, J. R. Johnson, et al.. (2024). A Mastcam Multispectral Investigation of Rock Variability in Gale Crater, Mars: Implications for Alteration in the Clay‐Sulfate Transition of Mount Sharp. Journal of Geophysical Research Planets. 129(2). 2 indexed citations
5.
Hausrath, Elisabeth M., Aaron J. Celestian, Douglas E. LaRowe, et al.. (2024). Fe/Mg-Silicate Chemical Gardens as Analogs to Silicate-Rich Hydrothermal Chimneys on Early Earth and Mars. ACS Earth and Space Chemistry. 8(10). 1982–1996. 2 indexed citations
6.
Horgan, B., K. A. Bennett, C. M. Weitz, et al.. (2024). An Orbital Comparison of a Late Mantling Unit on Aeolis Mons With Other Erosion‐Resistant Strata Explored by MSL in Gale Crater, Mars. Journal of Geophysical Research Planets. 129(8). 2 indexed citations
7.
Weber, Jessica M., et al.. (2024). Chemical gardens as analogs for prebiotic chemistry on ocean worlds. Chem. 11(1). 102289–102289. 3 indexed citations
8.
Milliken, R. E., K. M. Stack, L. A. Edgar, et al.. (2024). Geological context and significance of the clay-sulfate transition region in Mount Sharp, Gale crater, Mars: An integrated assessment based on orbiter and rover data. Geological Society of America Bulletin. 137(1-2). 82–115. 4 indexed citations
9.
Sheppard, Rachel Y., et al.. (2023). Nitrate Reactivity in Iron (Oxy)hydroxide Systems: Effect of pH, Iron Redox State, and Phosphate. ACS Earth and Space Chemistry. 7(11). 2287–2297.
10.
Sheppard, Rachel Y., A. A. Fraeman, R. C. Wiens, et al.. (2023). Compositional Variations in Sedimentary Deposits in Gale Crater as Observed by ChemCam Passive and Active Spectra. Journal of Geophysical Research Planets. 128(3). 1 indexed citations
11.
Lee, Carina, Jessica M. Weber, Rachel Y. Sheppard, et al.. (2022). Chirality in Organic and Mineral Systems: A Review of Reactivity and Alteration Processes Relevant to Prebiotic Chemistry and Life Detection Missions. Symmetry. 14(3). 460–460. 21 indexed citations
12.
Weber, Jessica M., et al.. (2022). Database on mineral mediated carbon reduction: implications for future research. International Journal of Astrobiology. 21(6). 423–440. 1 indexed citations
13.
Vachula, Richard S., et al.. (2022). Preservation biases are pervasive in Holocene paleofire records. Palaeogeography Palaeoclimatology Palaeoecology. 602. 111165–111165. 8 indexed citations
14.
Sheppard, Rachel Y., R. E. Milliken, James M. Russell, et al.. (2021). Iron Mineralogy and Sediment Color in a 100 m Drill Core From Lake Towuti, Indonesia Reflect Catchment and Diagenetic Conditions. Geochemistry Geophysics Geosystems. 22(8). 7 indexed citations
15.
Sheppard, Rachel Y., M. T. Thorpe, A. A. Fraeman, V. K. Fox, & R. E. Milliken. (2021). Merging Perspectives on Secondary Minerals on Mars: A Review of Ancient Water-Rock Interactions in Gale Crater Inferred from Orbital and In-Situ Observations. Minerals. 11(9). 986–986. 25 indexed citations
16.
Sheppard, Rachel Y., R. E. Milliken, M. Parente, & Yuki Itoh. (2020). Updated Perspectives and Hypotheses on the Mineralogy of Lower Mt. Sharp, Mars, as Seen From Orbit. Journal of Geophysical Research Planets. 126(2). 27 indexed citations
17.
Sheppard, Rachel Y., R. E. Milliken, J. M. Russell, et al.. (2020). Mineral and Chemical Changes in a 100 m Long Sediment Core from Lake Towuti, Indonesia and Implications for Mafic Lacustrine Sediments in Gale Crater, Mars. Lunar and Planetary Science Conference. 2347. 1 indexed citations
18.
Milliken, R. E., J. P. Grotzinger, R. C. Wiens, et al.. (2019). The Chemistry and Mineralogy of an Ancient Lacustrine Sequence on Mars: Lessons Learned from Integrating Rover and Orbiter Datasets. 2089. 6191. 1 indexed citations
19.
Sheppard, Rachel Y., R. E. Milliken, James M. Russell, et al.. (2019). Characterization of Iron in Lake Towuti sediment. Chemical Geology. 512. 11–30. 13 indexed citations
20.
Johnson, Brandon, et al.. (2017). Porosity and Salt Content Determine if Subduction Can Occur in Europa's Ice Shell. Journal of Geophysical Research Planets. 122(12). 2765–2778. 44 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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