This map shows the geographic impact of M.-S. Ma'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 M.-S. Ma with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites M.-S. Ma more than expected).
This network shows the impact of papers produced by M.-S. Ma. 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 M.-S. Ma. The network helps show where M.-S. Ma may publish in the future.
Co-authorship network of co-authors of M.-S. Ma
This figure shows the co-authorship network connecting the top 25 collaborators of M.-S. Ma.
A scholar is included among the top collaborators of M.-S. Ma 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 M.-S. Ma. M.-S. Ma is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Ma, M.-S., et al.. (1982). A chemical study of individual green glasses and brown glasses from 15426 - Implications for their petrogenesis. Lunar and Planetary Science Conference. 12. 915–933.28 indexed citations
6.
Ma, M.-S., R. A. Schmitt, & J. C. Laul. (1982). Complementary rare earth element patterns in unique achondrites, such as ALHA 77005 and shergottites, and in the earth. Lunar and Planetary Science Conference. 12. 1349–1358.37 indexed citations
Ma, M.-S., R. A. Schmitt, D. W. Beaty, & A. L. Albee. (1980). The petrology and chemistry of basaltic fragments from the Apollo 11 soil - Drive tubes 10004 and 10005. Lunar and Planetary Science Conference. 1. 37–47.11 indexed citations
9.
Warner, R. D., G. J. Taylor, K. Keil, M.-S. Ma, & R. A. Schmitt. (1980). Aluminous mare basalts - New data from Apollo 14 coarse fines. Lunar and Planetary Science Conference Proceedings. 1. 87–104.16 indexed citations
10.
Beaty, D. W., S. M. Hill, A. L. Albee, M.-S. Ma, & R. A. Schmitt. (1979). The petrology and chemistry of basaltic fragments from the Apollo 11 soil - I. Lunar and Planetary Science Conference. 1. 41–75.29 indexed citations
11.
Wentworth, S. J., G. J. Taylor, R. D. Warner, et al.. (1979). The Unique Nature of Apollo 17 VLT Mare Basalts. Lunar and Planetary Science Conference Proceedings. 1. 1332–1334.29 indexed citations
12.
Warner, R. D., et al.. (1979). Apollo 17 high-Ti mare basalts - New bulk compositional data, magma types, and petrogenesis. Lunar and Planetary Science Conference Proceedings. 1. 225–247.27 indexed citations
13.
Warner, R. D., et al.. (1978). Green glass vitrophyre 78526 - An impact of very low-Ti mare basalt composition. Lunar and Planetary Science Conference. 1. 547–563.8 indexed citations
14.
Ma, M.-S., R. A. Schmitt, R. D. Warner, G. J. Taylor, & K. Keil. (1978). Genesis of Apollo 15 olivine normative mare basalts - Trace element correlations. Lunar and Planetary Science Conference. 1. 523–533.13 indexed citations
15.
Quick, James E., A. L. Albee, M.-S. Ma, A. V. Murali, & R. A. Schmitt. (1977). Chemical compositions and possible immiscibility of two silicate melts in 12013. Lunar and Planetary Science Conference Proceedings. 2. 2153–2189.32 indexed citations
16.
Fukuoka, T., W. V. Boynton, M.-S. Ma, & R. A. Schmitt. (1977). Genesis of howardites, diogenites, and eucrites. [in meteorites. NASA Technical Reports Server (NASA).3 indexed citations
17.
Ma, M.-S., A. V. Murali, & R. A. Schmitt. (1976). Chemical constraints for mare basalt genesis.. Lunar and Planetary Science Conference Proceedings. 2. 1673–1695.15 indexed citations
18.
Warner, R. D., K. Keil, A. V. Murali, et al.. (1976). Consortium investigation of breccia 67435.. Lunar and Planetary Science Conference Proceedings. 2. 2379–2402.12 indexed citations
19.
Ehmann, W. D., L. L. Chyi, A. N. Garg, et al.. (1975). Chemical studies of the lunar regolith with emphasis on zirconium and hafnium. Lunar Science Conference. 2. 1351–1361.11 indexed citations
20.
Ma, M.-S., et al.. (1974). Compositional studies of the lunar regolith at the Apollo 17 site. Lunar and Planetary Science Conference Proceedings. 2. 1079–1086.12 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.