Masaaki Ohara

430 total citations
20 papers, 366 citations indexed

About

Masaaki Ohara is a scholar working on Oceanography, Atmospheric Science and Paleontology. According to data from OpenAlex, Masaaki Ohara has authored 20 papers receiving a total of 366 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Oceanography, 6 papers in Atmospheric Science and 5 papers in Paleontology. Recurrent topics in Masaaki Ohara's work include Geological and Geochemical Analysis (5 papers), Geology and Paleoclimatology Research (5 papers) and Marine Biology and Ecology Research (5 papers). Masaaki Ohara is often cited by papers focused on Geological and Geochemical Analysis (5 papers), Geology and Paleoclimatology Research (5 papers) and Marine Biology and Ecology Research (5 papers). Masaaki Ohara collaborates with scholars based in Japan, United Kingdom and United States. Masaaki Ohara's co-authors include R. Grant Cawthorn, Claude Herzberg, Hiroaki Karasawa, Hisayoshi Kato, Robert G. Jenkins, Steffen Kiel, Kazutaka Amano, G. M. Biggar, Yasunari Shigeta and Takuya Konishi and has published in prestigious journals such as Geochimica et Cosmochimica Acta, Journal of Petrology and Palaeogeography Palaeoclimatology Palaeoecology.

In The Last Decade

Masaaki Ohara

18 papers receiving 332 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Masaaki Ohara Japan 7 293 98 40 40 37 20 366
François Guillot France 11 213 0.7× 92 0.9× 75 1.9× 64 1.6× 34 0.9× 25 312
Florent Hodel France 11 283 1.0× 80 0.8× 53 1.3× 56 1.4× 14 0.4× 15 358
A. Chabukiani Georgia 5 298 1.0× 72 0.7× 54 1.4× 46 1.1× 39 1.1× 5 393
Tamar Chkhotua Russia 4 352 1.2× 126 1.3× 45 1.1× 41 1.0× 35 0.9× 4 428
D. N. B. Skinner New Zealand 10 271 0.9× 89 0.9× 141 3.5× 63 1.6× 18 0.5× 20 379
Gerald T. Cebula United States 6 249 0.8× 74 0.8× 79 2.0× 44 1.1× 11 0.3× 8 350
K. K. Simons United States 5 345 1.2× 58 0.6× 46 1.1× 18 0.5× 7 0.2× 10 387
Shannon J. Haynes United States 9 170 0.6× 80 0.8× 134 3.4× 166 4.2× 44 1.2× 20 346
Lothar Viereck Germany 12 251 0.9× 63 0.6× 91 2.3× 64 1.6× 8 0.2× 17 333
Lydia DiCaprio Australia 8 354 1.2× 41 0.4× 104 2.6× 38 0.9× 8 0.2× 8 454

Countries citing papers authored by Masaaki Ohara

Since Specialization
Citations

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

Fields of papers citing papers by Masaaki Ohara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masaaki Ohara

This figure shows the co-authorship network connecting the top 25 collaborators of Masaaki Ohara. A scholar is included among the top collaborators of Masaaki Ohara 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 Masaaki Ohara. Masaaki Ohara 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.
Tanaka, Yoshihiro, Masaaki Ohara, & Toshiyuki Kimura. (2023). A New Specimen of cf. Isanacetus laticephalus (Baleen Whale) from the Oi Formation, Ichishi Group (Late Early Miocene) in Japan. Paleontological Research. 28(1). 1 indexed citations
2.
Konishi, Takuya, et al.. (2023). A new derived mosasaurine (Squamata: Mosasaurinae) from south-western Japan reveals unexpected postcranial diversity among hydropedal mosasaurs. Journal of Systematic Palaeontology. 21(1). 3 indexed citations
3.
Tanaka, Yoshihiro, Masaaki Ohara, & Toshiyuki Kimura. (2020). A Fossil Dolphin from the Oi Formation, Ichishi Group (Late Early Miocene) in Japan. Paleontological Research. 25(1). 2 indexed citations
4.
5.
Tanaka, Yoshihiro, Masaaki Ohara, & Toshiyuki Kimura. (2019). A Large Fossil Baleen Whale from the Shikiya Formation (Early Middle Miocene) of Wakayama, Japan. Paleontological Research. 23(3). 199–199.
6.
7.
Amano, Kazutaka, Robert G. Jenkins, Masaaki Ohara, & Steffen Kiel. (2014). Miocene vesicomyid species (Bivalvia) from Wakayama in southern Honshu, Japan. Biodiversity Heritage Library (Smithsonian Institution). 11 indexed citations
8.
Amano, Kazutaka, et al.. (2013). A Paleogene deep-sea methane-seep community from Honshu, Japan. Palaeogeography Palaeoclimatology Palaeoecology. 387. 126–133. 17 indexed citations
9.
Shigeta, Yasunari, et al.. (2012). Gaudryceras tombetsenseMatsumoto, a Maastrichtian Ammonoid from the Aridagawa Area, Wakayama, Southwestern Japan. Paleontological Research. 16(3). 244–251. 5 indexed citations
10.
Ohara, Masaaki, et al.. (2011). Discovery ofAinoceras(Ammonoidea) from the Upper Cretaceous Futakawa Formation in the Aridagawa Area, Wakayama, Southwestern Japan. Paleontological Research. 15(4). 240–246. 3 indexed citations
11.
Karasawa, Hiroaki & Masaaki Ohara. (2009). Ponotus shirahamensis, a new genus and species of raninid crab (Decapoda, Brachyura) from the Miocene Tanabe Group of Japan. Boletín de la Sociedad Geológica Mexicana. 61(2). 199–202. 3 indexed citations
12.
Karasawa, Hiroaki, Masaaki Ohara, & Hisayoshi Kato. (2008). New records for Crustacea from the Arida Formation (Lower Cretaceous, Barremian) of Japan. Boletín de la Sociedad Geológica Mexicana. 60(1). 101–110. 24 indexed citations
13.
14.
Ohara, Masaaki. (1995). Trace Element Geochemical Effects of Integrated Melt Extraction and ‘Shaped’ Melting Regimes. Journal of Petrology. 36(4). 1111–1132. 29 indexed citations
15.
Ohara, Masaaki. (1994). Integrated Melts from Melting Regimes of Different Shapes. Mineralogical Magazine. 58A(2). 665–666. 1 indexed citations
16.
Ohara, Masaaki. (1993). Trace element geochemical effects of imperfect crystal-liquid separation. Geological Society London Special Publications. 76(1). 39–59. 23 indexed citations
17.
Cawthorn, R. Grant & Masaaki Ohara. (1976). Amphibole fractionation in calc-alkaline magma genesis. American Journal of Science. 276(3). 309–329. 177 indexed citations
18.
Ohara, Masaaki, G. M. Biggar, D.J. Humphries, & Pranab Saha. (1974). Experimental Petrology of High Titanium Basalt. Lunar and Planetary Science Conference. 5. 571. 3 indexed citations
19.
Biggar, G. M. & Masaaki Ohara. (1972). Melilite crystallization in the system CaO-MgO-Al2O3-SiO2. Mineralogical Magazine. 38(300). 918–925. 2 indexed citations
20.

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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