Tomoko Ossaka

553 total citations
25 papers, 455 citations indexed

About

Tomoko Ossaka is a scholar working on Geochemistry and Petrology, Inorganic Chemistry and Radiation. According to data from OpenAlex, Tomoko Ossaka has authored 25 papers receiving a total of 455 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Geochemistry and Petrology, 14 papers in Inorganic Chemistry and 8 papers in Radiation. Recurrent topics in Tomoko Ossaka's work include Radioactive element chemistry and processing (14 papers), Geochemistry and Elemental Analysis (11 papers) and Groundwater and Isotope Geochemistry (7 papers). Tomoko Ossaka is often cited by papers focused on Radioactive element chemistry and processing (14 papers), Geochemistry and Elemental Analysis (11 papers) and Groundwater and Isotope Geochemistry (7 papers). Tomoko Ossaka collaborates with scholars based in Japan and Canada. Tomoko Ossaka's co-authors include Takao Oi, Hidetake Kakihana, Masaaki Musashi, Makoto Okamoto, Masao Nomura, Teruko Honda, Tatsuo Nozaki, Jôyo Ossaka, Tsuyoshi Hayashi and Jun‐ichi Hirabayashi and has published in prestigious journals such as Geochimica et Cosmochimica Acta, Chemical Geology and Analytica Chimica Acta.

In The Last Decade

Tomoko Ossaka

25 papers receiving 433 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Tomoko Ossaka Japan 13 292 157 141 69 48 25 455
Masaaki Musashi Japan 12 211 0.7× 90 0.6× 105 0.7× 105 1.5× 14 0.3× 25 426
Robert A. Gulbrandsen United States 10 233 0.8× 101 0.6× 105 0.7× 74 1.1× 80 1.7× 18 512
Valérie Olive United Kingdom 16 121 0.4× 87 0.6× 103 0.7× 67 1.0× 47 1.0× 28 536
Naoki Mita Japan 9 243 0.8× 125 0.8× 164 1.2× 60 0.9× 110 2.3× 17 446
J B Chapman United Kingdom 8 365 1.3× 115 0.7× 261 1.9× 106 1.5× 211 4.4× 17 738
Hyung Seon Shin South Korea 10 221 0.8× 80 0.5× 52 0.4× 89 1.3× 49 1.0× 18 437
Mark J. Rigali United States 10 60 0.2× 275 1.8× 82 0.6× 42 0.6× 54 1.1× 16 478
Shin-ichi Yamasaki Japan 12 123 0.4× 77 0.5× 82 0.6× 66 1.0× 57 1.2× 17 378
Michèle Robert France 6 154 0.5× 33 0.2× 137 1.0× 70 1.0× 84 1.8× 6 426
Jens Stummeyer Germany 14 142 0.5× 34 0.2× 106 0.8× 48 0.7× 55 1.1× 22 421

Countries citing papers authored by Tomoko Ossaka

Since Specialization
Citations

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

Fields of papers citing papers by Tomoko Ossaka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tomoko Ossaka

This figure shows the co-authorship network connecting the top 25 collaborators of Tomoko Ossaka. A scholar is included among the top collaborators of Tomoko Ossaka 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 Tomoko Ossaka. Tomoko Ossaka 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.
Ossaka, Tomoko, et al.. (2001). Experimental studies on the mobility of lanthanides accompanying alteration of andesite by acidic hot spring water. Chemical Geology. 176(1-4). 137–149. 28 indexed citations
2.
Ossaka, Tomoko, et al.. (1995). Contents of Halide Ions of Hot Spring Waters in the Kusatsu-Shirane Volcano Area.. NIPPON KAGAKU KAISHI. 656–659. 2 indexed citations
3.
Oi, Takao, et al.. (1995). Determination of uranium and thorium in solar salts by neutron activation analysis. Journal of Radioanalytical and Nuclear Chemistry. 191(2). 273–278. 3 indexed citations
4.
Oi, Takao, et al.. (1995). Leaching of lanthanoids from andesitic rocks by acidic aqueous solutions.. GEOCHEMICAL JOURNAL. 29(1). 67–84. 11 indexed citations
5.
Ossaka, Tomoko, Kazuyuki Kakegawa, Takao Oi, & Masao Mukaida. (1994). Major element analysis of selected rock and volcanic ash samples in the Unzen area, Japan, by X-ray fluorescence spectroscopy. Journal of Radioanalytical and Nuclear Chemistry. 183(2). 235–244. 8 indexed citations
6.
Ossaka, Tomoko, et al.. (1993). Abundance of the Lanthanoids in Waters and Lacustrine Deposits of Yugama, the Crater Lake to Mt.Kusatsu-Shirane.. NIPPON KAGAKU KAISHI. 543–548. 1 indexed citations
7.
Oi, Takao, et al.. (1993). Lanthanoid abundances of acidic hot spring and crater lake waters in the Kusatsu-shirane volcano region, Japan.. GEOCHEMICAL JOURNAL. 27(1). 19–33. 27 indexed citations
8.
Oi, Takao, et al.. (1991). Boron isotope fractionation accompanying boron mineral formation from aqueous boric acid-sodium hydroxide solutions at 25.DEG.C... GEOCHEMICAL JOURNAL. 25(5). 377–385. 28 indexed citations
9.
Oi, Takao, et al.. (1991). Effects of pre-irradiation treatments in neutron activation analysis of rocks for measurements of their lanthanoid, thorium and uranium contents. Journal of Radioanalytical and Nuclear Chemistry. 150(1). 103–116. 7 indexed citations
10.
Musashi, Masaaki, Takao Oi, Tomoko Ossaka, & Hidetake Kakihana. (1991). Natural Boron Isotope Fractionation between Hot Spring Water and Rock in Direct Contact. Isotopenpraxis Isotopes in Environmental and Health Studies. 27(4). 163–166. 8 indexed citations
11.
Honda, Teruko, et al.. (1991). Determination of Th and U at ppt levels in a neutral hot spring water by neutron activation analysis. Journal of Radioanalytical and Nuclear Chemistry. 153(5). 357–364. 4 indexed citations
12.
Musashi, Masaaki, Takao Oi, Tomoko Ossaka, & Hidetake Kakihana. (1990). Extraction of boron from GSJ rock reference samples and determination of their boron isotopic ratios. Analytica Chimica Acta. 231. 147–150. 16 indexed citations
13.
Oi, Takao, et al.. (1990). Determination of the lanthanoids in a neutral hot spring water by neutron activation analysis. Journal of Radioanalytical and Nuclear Chemistry. 140(2). 365–377. 13 indexed citations
14.
Honda, Teruko, Takao Oi, Tomoko Ossaka, Tatsuo Nozaki, & Hidetake Kakihana. (1989). Determination of rare earth elements in hot spring and crater lake waters by epithermal neutron activation analysis. Journal of Radioanalytical and Nuclear Chemistry. 133(2). 301–315. 22 indexed citations
15.
Honda, Teruko, Takao Oi, Tomoko Ossaka, Tatsuo Nozaki, & Hidetake Kakihana. (1989). Determination of praseodymium, neodymium and erbium in hot spring and crater lake waters by neutron activation analysis incorporating the standard addition technique. Journal of Radioanalytical and Nuclear Chemistry. 134(1). 13–25. 11 indexed citations
16.
Honda, Teruko, Tatsuo Nozaki, Tomoko Ossaka, Takao Oi, & Hidetake Kakihana. (1988). Nondestructive neutron activation analysis of rare earth elements in hot spring water samples in Kusatsu-shirane area, Japan. Journal of Radioanalytical and Nuclear Chemistry. 122(1). 143–151. 10 indexed citations
17.
Musashi, Masaaki, Masao Nomura, Makoto Okamoto, et al.. (1988). Regional variation in the boron isotopic composition of hot spring waters from central Japan.. GEOCHEMICAL JOURNAL. 22(5). 205–214. 41 indexed citations
18.
Kakihana, Hidetake, Tomoko Ossaka, Takao Oi, et al.. (1987). Boron isotopic ratios of some hot spring waters in the Kusatsu-Shirane area, Japan.. GEOCHEMICAL JOURNAL. 21(3). 133–137. 21 indexed citations
19.
Ossaka, Jôyo, et al.. (1980). Variation of chemical compositions in volcanic gases and water at Kusatsu-Shirane Volcano and its activity in 1976. Bulletin of Volcanology. 43(1). 207–216. 33 indexed citations
20.
Ossaka, Tomoko, et al.. (1979). A Study on the Chemical Characteristics of the Volcanic Gases in Kusatsu-Shirane Volcano District. 1(2). 117–134. 1 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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