R
Ryoshi Ishiwatari
Researcher at Tokyo Metropolitan University
Publications - 147
Citations - 6419
Ryoshi Ishiwatari is an academic researcher from Tokyo Metropolitan University. The author has contributed to research in topics: Organic matter & Kerogen. The author has an hindex of 40, co-authored 147 publications receiving 6115 citations.
Papers
More filters
Journal ArticleDOI
Lacustrine organic geochemistry—an overview of indicators of organic matter sources and diagenesis in lake sediments
TL;DR: The factors affecting the amounts and types of organic matter in lacustrine sediments are summarized in a review, and synthesis, of published studies as discussed by the authors, and the interplay of the factors influencing the organic matter content of lake sediments is illustrated by overviews of sedimentary records of four lake systems--Lake Biwa (Japan), Lake Greifen (Switzerland), Lake Washington (Pacific Northwest), and the Great Lakes (American Midwest).
Journal ArticleDOI
J. Anal. Appl. Pyrolysis
Book ChapterDOI
Organic Matter Accumulation Records in Lake Sediments
TL;DR: The organic-matter content of lake sediments provides information that is important to studies of lacustrine paleoenvironments, the history of climate change, and the effects of humans on local and regional ecosystems as mentioned in this paper.
Journal ArticleDOI
Linear alkylbenzenes in urban riverine environments in Tokyo: distribution, source, and behavior
TL;DR: The distribution of linear alkylbenzenes (LABs) in river sediments, suspended river particles, domestic wastes, and waste effluents around the Tokyo city area was investigated in this paper.
Journal ArticleDOI
Latest Paleocene benthic foraminiferal extinction and environmental changes at Tawanui, New Zealand
Kunio Kaiho,Tetsuya Arinobu,Ryoshi Ishiwatari,Hugh E. G. Morgans,Hisatake Okada,Nobuyori Takeda,Kazue Tazaki,Gouping Zhou,Yoshimichi Kajiwara,Ryo Matsumoto,Akio Hirai,Nobuaki Niitsuma,Hideki Wada +12 more
TL;DR: A major extinction of intermediate-water benthic foraminiferal species coincided with a major decrease in terrestrial organic matter (n-C29 alkane) and whole rock sulfide in a continuous siltstone sequence in the Tawanui Section (46°S paleolatitude) along the Akitio River, southeastern North Island, New Zealand, in the middle part of the uppermost Paleocene nannofossil zone (CP8) as discussed by the authors.