Shiki Machida

63 papers and 1.5k indexed citations
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About

Shiki Machida is a scholar working on Geophysics, Geochemistry and Petrology and Atmospheric Science. According to data from OpenAlex, Shiki Machida has authored 63 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Geophysics, 25 papers in Geochemistry and Petrology and 18 papers in Atmospheric Science. Recurrent topics in Shiki Machida’s work include Geological and Geochemical Analysis (44 papers), earthquake and tectonic studies (35 papers) and Geochemistry and Elemental Analysis (25 papers). Shiki Machida is often cited by papers focused on Geological and Geochemical Analysis (44 papers), earthquake and tectonic studies (35 papers) and Geochemistry and Elemental Analysis (25 papers). Shiki Machida collaborates with scholars based in Japan, United States and Italy. Shiki Machida's co-authors include Naoto Hirano, Yasuhiro Kato, Teruaki Ishii, Kentaro Nakamura, Jun‐Ichi Kimura, Kazutaka Yasukawa, Koichiro Fujinaga, Natsue Abe, Takafumi Hirata and Junichiro Ohta and has published in prestigious journals such as Science, Nature Communications and Geochimica et Cosmochimica Acta.

In The Last Decade

Co-authorship network of co-authors of Shiki Machida

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

Fields of papers citing papers by Shiki Machida

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Shiki Machida. 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 Shiki Machida. The network helps show where Shiki Machida may publish in the future.

Countries citing papers authored by Shiki Machida

Since Specialization
Citations

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

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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2026