Concepedia

Isao Motoyama

IM

23

Publications

1K

Citations

19

H-Index

1991

Active since

Affiliations

University of Tsukuba(Current)

Hokkaido University

Geological Survey of Japan

Yamagata University

Japan Agency for Marine-Earth Science and Technology

Isao Motoyama is an author at University of Tsukuba specializing in engineering, earth science, and marine geology.

Top concepts

EngineeringEarth ScienceMarine GeologyOceanographyGeologyGeographyPaleoecologyGeochronologySocial SciencesTectonics

Publications per year

1991–2017

23

Publications

23

Abrupt ventilation changes in the Japan Sea over the last 30 ky: evidence from deep-dwelling radiolarians

Takuya Itaki, Ken Ikehara, Isao Motoyama et al. · Palaeogeography Palaeoclimatology Palaeoecology · 2004 · 127 citations

Marine Geology, Engineering, Abrupt Ventilation Changes +6

Orbital- and millennial-scale changes of radiolarian assemblages during the last 220 kyrs in the Japan Sea

Takuya Itaki, Nozomi Komatsu, Isao Motoyama · Palaeogeography Palaeoclimatology Palaeoecology · 2007 · 77 citations

Marine Geology, Engineering, Paleoceanography +6

Middle Miocene to Pleistocene radiolarian biostratigraphy in the Northwest Pacific Ocean, ODP Leg 186

Shin‐ichi Kamikuri, Hiroshi Nishi, Isao Motoyama et al. · Island Arc · 2004 · 76 citations

Northwest Pacific Ocean, Engineering, Paleoceanography +17

Effects of late Neogene climatic cooling on North Pacific radiolarian assemblages and oceanographic conditions

Shin‐ichi Kamikuri, Hiroshi Nishi, Isao Motoyama · Palaeogeography Palaeoclimatology Palaeoecology · 2007 · 73 citations

Climatology, Marine Geology, Engineering +10

Late Neogene Radiolarian Biostratigraphy in the Subarctic Northwest Pacific

Isao Motoyama · Micropaleontology · 1996 · 71 citations

Radiolarian Zonation, Paleoenvironmental Reconstruction, Marine Geology +13

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