Yamagiwa Kaishi

写真a

Researcher Number(JSPS Kakenhi)

80781202

Homepage URL

https://riis.skr.u-ryukyu.ac.jp/

University 【 display / non-display

  • 2012.04
    -
    2016.03

    University of the Ryukyus   Graduate School of Humanity and Social Science   Division of Comparative Regional Culture   Graduated

  • 2015.04
    -
    2016.03

    National Museum of Ethnology     Graduated

External Career 【 display / non-display

  • 2016.04
    -
    2020.03

    University of the Ryukyus  

  • 2020.04
    -
    2020.11

    Japan Society for the Promotion of Science  

  • 2020.12
     
     

    University of the Ryukyus  

Affiliated academic organizations 【 display / non-display

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    The Society for the Study of Material Culture 

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    OKINAWA ARCHAEOLOGICAL SOCIETY 

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    JAPAN SOCIETY FOR SOUTHEAST ASIAN ARCHAEOLOGY 

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    JAPANESE SOCIETY FOR OCEANIC STUDIES 

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    Society for American Archaeology 

Research Interests 【 display / non-display

  • Ceramic Analysis

  • Archaeology

  • Adaptation

  • Okinawa

  • Southeast Asia

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Research Areas 【 display / non-display

  • Archaeology

  • Miyako-Yaeyama islands

  • Humanities & Social Sciences / Area studies

Published Papers 【 display / non-display

  • Early Human Cultural and Communal Diversity in the Ryukyu Islands

    Kaishi Yamagiwa

    Okinawan Journal of Island Studies   3 ( 2 ) 3 - 15   2022.03 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Early Human Migration and Shell Use in Eastern Micronesia: Based on the Results of Recent Excavations on Pohnpei Island, Federated States of Micronesia

    Rintaro Ono, Kenyojiro Yamano, Osamu Kataoka, Jason Barnabas, Takuya Nagaoka, Chiaki Katagiri, Kaishi Yamagiwa

    Journal of Southeast Asian Archaeology   ( 41 ) 57 - 72   2022.02 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Non-destructive elemental analysis of prehistoric potsherds in the southern Ryukyu Islands, Japan: Consideration of the pottery surface processing technique in the boundary region between the Japanese Jōmon and Neolithic Taiwan

    Hiroaki Aoyama, Kaishi Yamagiwa, Shingo Fujimoto, Jin Izumi, Senri Ganeko, Shingo Kameshima

    Journal of Archaeological Science: Reports ( Elsevier BV )  33   102512 - 102512   2020.10 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • A possible new oldest pottery group in the Southern Ryukyu Islands, Japan: Comparative analysis of elemental components of potsherds from the Shiraho-Saonetabaru Cave Site

    Kaishi Yamagiwa, Shingo Fujimoto, Hiroaki Aoyama, Jin Izumi, Shingo Kameshima

    Journal of Archaeological Science: Reports ( Journal of Archaeological Science: Reports )  Volume 26   101879 - 101879   2019.08 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • A new nondestructive approach to chemical analysis of potsherds using an X‐ray fluorescence microscope: Case study about the past pottery manufacture in the Yaeyama Islands

    Hiroaki Aoyama, Kaishi Yamagiwa, Shingo Fujimoto, Jin Izumi, Ryosuke Ishikawa, Shingo Kameshima, Tsutomu Arakaki

    X-Ray Spectrometry ( X-Ray Spectrometry )  47 ( 4 ) 265 - 272   2018.07 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

     View Summary

    In archeology, pottery represents an important class of artifacts giving information on the past human activity, the ecology, and ancient cultural groups. Some chemical analytic methods, including X-ray fluorescent analysis, were adopted for the archeological study of pottery. However, these techniques also involve problems, including the destructive analysis of materials, and cannot analyze the original clay condition of pottery. To address this, we carried out nondestructive chemical analysis of 13 potsherds excavated from the Yaeyama Islands in the southern Japan archipelagos using X-ray fluorescence microscopy. Two analytic methods were used, elemental mapping and multipoint spectral measurement, making it possible to obtain a visualized elemental distribution on potsherd surface and a detailed multipoint elemental composition of the same sample for the multivariate statistical analysis. In this study, the visualized images suggested that calcium particles were mixed to temper the materials, and their size and quantity differed between potsherds, whereas the uniformity of clay substrate, including the quantities of iron and silicon on multipoint measurement, was a characteristic of each potsherd. Therefore, principal component analysis and nonmetric multidimensional scaling analysis of the potsherds suggest that the differences between the Yaeyama Islands in terms of pottery manufacturing technology are due to chronological factors in this case. Our method represents an effective new approach to the pottery study for technological change.

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Presentations 【 display / non-display

  • Large-Scale Tsunami Events Records of Deposits and Stalagmites in Caves of Ishigaki Island, Okinawa Prefecture, Japan

    JpGU Meeting 2022  2022.05  -  2022.06 

  • ecent Archaeological Research of Ancient Human Evidence in the Southern Ryukyu Islands, Southwestern Part of Japan Archipelago

    Kaishi Yamagiwa

    Research Seminar No.217 of Research center for the Pacific Islands, Kagoshima University  2022.03  -  2022.03 

  • When Did Early Migrants reach Pohnpei? Human Migration, Interisland Networks, and Resource Use in Eastern Micronesia

    Rintaro Ono, Jason Barnabas, Osamu Kataoka, Kaishi Yamagiwa, Takuya Nagaoka, Scott M. Fitzpatrick

    SAA 86th Annual Meeting (Online - 2021)  2021.04  -  2021.04 

  • Human Adaptation and Natural Resource Usage in Prehistoric Islands

    Kaishi Yamagiwa

    The 82nd Annual Meeting of SAA  1900.01  -  1900.01 

  • 琉球列島宮古・八重山諸島における近年の考古学的な枠組みと方向性について

    山極 海嗣

    宮古・八重山諸島考古学ワークショップ 日  1900.01  -  1900.01 

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Grant-in-Aid for Scientific Research 【 display / non-display

  • Archaeological Study of Holocene Human Dispersal to Micronesia: Especially focus on Shell Artifacts.

    Grant-in-Aid for Scientific Research(C)

    Project Year: 2022.04  -  2025.03 

    Direct: 2,900,000 (YEN)  Overheads: 3,770,000 (YEN)  Total: 870,000 (YEN)

  • Austronesian migration into Southeast Asia: interdisciplinary study of their pottery and burial tradition

    Challenging research (development)

    Project Year: 2020.07  -  2023.03 

    Direct: 19,500,000 (YEN)  Overheads: 25,350,000 (YEN)  Total: 5,850,000 (YEN)

  • Austronesian migration into Southeast Asia: interdisciplinary study of their pottery and burial tradition

    Challenging research (development)

    Project Year: 2020.07  -  2023.03 

    Direct: 19,500,000 (YEN)  Overheads: 25,350,000 (YEN)  Total: 5,850,000 (YEN)