Koichiro Fujinaga

2.7k citations

53 papers · 2.0k indexed · 1 hit paper · h-index 23

Co-authors: Yasuhiro Kato Kentaro Nakamura Kazutaka Yasukawa Junichiro Ohta Yutaro Takaya Hikaru Iwamori Katsuhiko Suzuki Tatsuo Nozaki
Topics: Geochemistry and Elemental Analysis (44 papers)Geological and Geochemical Analysis (28 papers)Geology and Paleoclimatology Research (16 papers)
Cited by: Geochemistry and Petrology Paleontology Geophysics
Journals: Geochimica et Cosmochimica Acta Scientific Reports Nature Geoscience
Partner nations: Japan United States Egypt

In The Last Decade

Koichiro Fujinaga

50 papers receiving 1.9k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Deep-sea mud in the Pacific Ocean as a potential resource for rare-earth elements

2011 454 citations Yasuhiro Kato, Koichiro Fujinaga et al. profile →

Peers

Countries citing papers authored by Koichiro Fujinaga

Since Specialization

Citations

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

Fields of papers citing papers by Koichiro Fujinaga

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koichiro Fujinaga

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Numerical Simulation on Hybrid Lifting Operation of Polymetallic Nodules and Rare-Earth Elements-Rich Mud by Air-Lift Pump in Deep Sea around Minamitorishima Island 2025 ·Journal of Marine Science and Engineering ·Yoshiyuki Shimizu,(unknown),Koichiro Fujinaga,Kentaro Nakamura,Yasuhiro Kato	0
2	Origin of ferromanganese deposits in the Jurassic to Cretaceous accretionary complex: Implications for the deep-sea environment around ocean anoxic events 2025 ·Ore Geology Reviews ·(unknown),Koichiro Fujinaga,Naoto Hirano,Yasuhiro Kato	0
3	Origin of Neoproterozoic anorthosites in the Wadi El Dib ultramafic-mafic layered intrusions, Egypt 2025 ·Precambrian Research ·Hassan Eliwa,(unknown),(unknown),Yuanming Pan,(unknown),(unknown),(unknown),Mamoru Murata,Arild Andresen,David Chew,(unknown),Mona M. Fawzy,Yasuhiro Kato,Koichiro Fujinaga,(unknown),Ryuichi Shinjo	1
4	High‐Dimensional Chemostratigraphy of Pelagic Clay in the Western North Pacific Ocean Revealed via an Unsupervised Clustering Approach 2023 ·Paleoceanography and Paleoclimatology ·Kazutaka Yasukawa,Erika Tanaka,Takashi Miyazaki,Bogdan Stefanov Vaglarov,Qing Chang,Kentaro Nakamura,Junichiro Ohta,Koichiro Fujinaga,(unknown),Yasuhiro Kato	4
5	Geochemical insights into secular changes in the depositional environment of ferromanganese nodules in the western North Pacific 2023 ·Deep Sea Research Part I Oceanographic Research Papers ·Kentaro Nakamura,(unknown),(unknown),Shiki Machida,Kazutaka Yasukawa,Koichiro Fujinaga,Tatsuo Nozaki,Yasuhiro Kato	0
6	Secular Variations in Provenance of Sedimentary Components in the Western North Pacific Ocean Constrained by Sr Isotopic Features of Deep‐Sea Sediments 2022 ·Geochemistry Geophysics Geosystems ·Erika Tanaka,Kazutaka Yasukawa,Kentaro Nakamura,Junichiro Ohta,Takashi Miyazaki,Bogdan Stefanov Vaglarov,Shiki Machida,Koichiro Fujinaga,Hikaru Iwamori,Yasuhiro Kato	11
7	Field, textural, geochemical, and isotopic constraints on the origin and evolution of the magmatic microgranular enclaves from the Gharib Granitoid Complex, North Eastern Desert, Egypt 2021 ·Precambrian Research ·Hassan Eliwa,(unknown),(unknown),Santosh Kumar,(unknown),Tehseen Zafar,(unknown),Mamoru Murata,Hiroaki Ozawa,Arild Andresen,David Chew,Mona M. Fawzy,(unknown),Yasuhiro Kato,Koichiro Fujinaga	3
8	Rapid coupling between solid earth and ice volume during the Quaternary 2021 ·Scientific Reports ·(unknown),Kazutaka Yasukawa,Koichiro Fujinaga,Tatsuo Nozaki,Junichiro Ohta,Honami Sato,Jun‐Ichi Kimura,Kentaro Nakamura,Yūsuke Yokoyama,Yasuhiro Kato	11
9	Chemostratigraphic Correlations of Deep-Sea Sediments in the Western North Pacific Ocean: A New Constraint on the Distribution of Mud Highly Enriched in Rare-Earth Elements 2020 ·Minerals ·Erika Tanaka,Kentaro Nakamura,Kazutaka Yasukawa,Kazuhide Mimura,Koichiro Fujinaga,Junichiro Ohta,Koichi Iijima,Tatsuo Nozaki,Shiki Machida,Yasuhiro Kato	28
10	Fish proliferation and rare-earth deposition by topographically induced upwelling at the late Eocene cooling event 2020 ·Scientific Reports ·Junichiro Ohta,Kazutaka Yasukawa,Tatsuo Nozaki,Yutaro Takaya,Kazuhide Mimura,Koichiro Fujinaga,Kentaro Nakamura,Yoichi Usui,Jun‐Ichi Kimura,Qing Chang,Yasuhiro Kato	38
11	Statistic and Isotopic Characterization of Deep‐Sea Sediments in the Western North Pacific Ocean: Implications for Genesis of the Sediment Extremely Enriched in Rare Earth Elements 2019 ·Geochemistry Geophysics Geosystems ·Kazutaka Yasukawa,Junichiro Ohta,Takashi Miyazaki,Bogdan Stefanov Vaglarov,Qing Chang,Kenta Ueki,Chiaki Toyama,Jun‐Ichi Kimura,Erika Tanaka,Kentaro Nakamura,Koichiro Fujinaga,Koichi Iijima,Hikaru Iwamori,Yasuhiro Kato	62
12	The tremendous potential of deep-sea mud as a source of rare-earth elements 2018 ·Scientific Reports ·Yutaro Takaya,Kazutaka Yasukawa,(unknown),Koichiro Fujinaga,Junichiro Ohta,Yoichi Usui,Kentaro Nakamura,Jun‐Ichi Kimura,Qing Chang,Morihisa Hamada,Gjergj Dodbiba,Tatsuo Nozaki,Koichi Iijima,(unknown),(unknown),(unknown),Takao Ichimura,Masaki Kitazume,Toyohisa Fujita,Yasuhiro Kato	172
13	Earth system feedback statistically extracted from the Indian Ocean deep-sea sediments recording Eocene hyperthermals 2017 ·Scientific Reports ·Kazutaka Yasukawa,Kentaro Nakamura,Koichiro Fujinaga,Minoru Ikehara,Yasuhiro Kato	12
14	Tracking the spatiotemporal variations of statistically independent components involving enrichment of rare-earth elements in deep-sea sediments 2016 ·Scientific Reports ·Kazutaka Yasukawa,Kentaro Nakamura,Koichiro Fujinaga,Hikaru Iwamori,Yasuhiro Kato	73
15	Bolide impact triggered the Late Triassic extinction event in equatorial Panthalassa 2016 ·Scientific Reports ·Tetsuji Onoue,Honami Sato,Daisuke Yamashita,Minoru Ikehara,Kazutaka Yasukawa,Koichiro Fujinaga,Yasuhiro Kato,Atsushi Matsuoka	44
16	Evaluation of mineral resource potential of rare-earth elements and yttrium-rich mud off the southeastern coast of Hawaiian Islands 2012 ·Kōzan chishitsu ·Junichiro Ohta,Koichiro Fujinaga,Yutaro Takaya,Yasuhiro Kato	3
17	Rare Earth, Major and Trace Elements in the Kunimiyama Ferromanganese Deposit in the Northern Chichibu Belt, Central Shikoku, Japan 2005 ·Resource Geology ·Yasuhiro Kato,Koichiro Fujinaga,Tatsuo Nozaki,Kentaro Nakamura,(unknown),(unknown)	35
18	Geochemistry of oceanic crust remnant and associated stratified ferromanganese deposit from the Hayachine Belt, northeast Japan 2004 ·Tatsuo Nozaki,Kentaro Nakamura,Koichiro Fujinaga,(unknown),Yasuhiro Kato	10
19	Geochemistry of ferromanganese sediment formed by a ridge collision in the late Cretaceous southwestern Japan: Geochemical analogy to a modern hydrothermal sediment at a mid-ocean ridge 2001 ·Resource Geology ·Koichiro Fujinaga,Yasuhiro Kato	2
20	Rare earth element geochemistry of in-situ basalts from the Upper Cretaceous Shimanto Belt and its implication for their origin. 2000 ·Japanese Magazine of Mineralogical and Petrological Sciences ·Kentaro Nakamura,Koichiro Fujinaga,Yasuhiro Kato	8

About Koichiro Fujinaga

Koichiro Fujinaga is a scholar working on Geochemistry and Petrology, Geophysics and Paleontology, having authored 53 papers that have together received 2.0k indexed citations. Recurring topics across this work include Geochemistry and Elemental Analysis (44 papers), Geological and Geochemical Analysis (28 papers) and Geology and Paleoclimatology Research (16 papers). The work is most often cited by research in Geochemistry and Petrology (1.4k citations), Paleontology (600 citations) and Geophysics (953 citations). Koichiro Fujinaga has collaborated with scholars based in Japan, United States and Egypt. Frequent co-authors include Yasuhiro Kato, Kentaro Nakamura, Kazutaka Yasukawa, Junichiro Ohta, Yutaro Takaya, Hikaru Iwamori, Katsuhiko Suzuki, Tatsuo Nozaki, Shiki Machida and Takuya Nakashima. Their work appears in journals such as Geochimica et Cosmochimica Acta, Scientific Reports and Nature Geoscience.

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