Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Minoru Ikehara"'
Autor:
Shoko Sakata, Mayuri Inoue, Yasuaki Tanaka, Takashi Nakamura, Kazuhiko Sakai, Minoru Ikehara, Atsushi Suzuki
Publikováno v:
Frontiers in Marine Science, Vol 11 (2024)
Although biogenic carbonates, such as foraminifera and coccolithophorids, are valuable tools for reconstructing past environments, scleractinian corals also offer environmental data from tropical to subtropical regions with a higher time resolution.
Externí odkaz:
https://doaj.org/article/119e215ab8ba478182a8d826e794bfb8
Autor:
Mutsumi Iizuka, Osamu Seki, David J. Wilson, Yusuke Suganuma, Keiji Horikawa, Tina van de Flierdt, Minoru Ikehara, Takuya Itaki, Tomohisa Irino, Masanobu Yamamoto, Motohiro Hirabayashi, Hiroyuki Matsuzaki, Saiko Sugisaki
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-10 (2023)
Abstract The Last Interglacial (LIG: 130,000–115,000 years ago) was a period of warmer global mean temperatures and higher and more variable sea levels than the Holocene (11,700–0 years ago). Therefore, a better understanding of Antarctic ice-she
Externí odkaz:
https://doaj.org/article/b648fa9dec074ea7b3f62d4bf0631844
Autor:
Yuying Zhang, Limin Hu, Yonghua Wu, Zhi Dong, Zhengquan Yao, Xun Gong, Yanguang Liu, Minoru Ikehara, Xuefa Shi
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
The carbon cycle on the Earth’s surface is linked to long-term variations in atmospheric CO2 as well as carbon sequestration in various pools. The burial of particulate organic carbon (OC) in marine sediments is also highly sensitive to the global
Externí odkaz:
https://doaj.org/article/8a430fea16e545ae98d78247ad7b62af
Autor:
Yuki Morono, Motoo Ito, Tatsuhiko Hoshino, Takeshi Terada, Tomoyuki Hori, Minoru Ikehara, Steven D’Hondt, Fumio Inagaki
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
The discovery of aerobic microbial communities in nutrient-poor sediments below the seafloor begs the question of the mechanisms for their persistence. Here the authors investigate subseafloor sediment in the South Pacific Gyre abyssal plain, showing
Externí odkaz:
https://doaj.org/article/60168f65ac9e4caf9cbce09bff711b44
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
Oxygen isotopic compositions (δ18O) of benthic foraminifer tests are widely used for reconstructing paleoceanographic changes, such as global ice volumes during glacial–interglacial cycles. Although deep-sea benthic foraminifers have been well cha
Externí odkaz:
https://doaj.org/article/1bd30a17fb8b45e495656ae80bf304ed
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
Abstract The mechanisms driving the variations in the centennial-scale East Asian summer monsoon (EASM) remain unclear. Here, we use the δ18O records from adult ostracode shells to reconstruct the EASM variations over the last 3 kyrs in southwestern
Externí odkaz:
https://doaj.org/article/7127210a16b440098a30efac14b1d153
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
Abstract Denitrification in the Arabian Sea is closely related to the monsoon-induced upwelling and subsequent phytoplankton production in the surface water. The δ15N values of bulk sediments collected at Site U1456 of the International Ocean Discov
Externí odkaz:
https://doaj.org/article/60a41988bd524c92a8e32a3a2d047054
Autor:
Tomoyuki Hori, Motoo Ito, Steven D'Hondt, Fumio Inagaki, Yuki Morono, Tatsuhiko Hoshino, Takeshi Terada, Minoru Ikehara
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Nature Communications
Nature Communications
Sparse microbial populations persist from seafloor to basement in the slowly accumulating oxic sediment of the oligotrophic South Pacific Gyre (SPG). The physiological status of these communities, including their substrate metabolism, is previously u
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
Scientific Reports
Scientific Reports
The mechanisms driving the variations in the centennial-scale East Asian summer monsoon (EASM) remain unclear. Here, we use the δ18O records from adult ostracode shells to reconstruct the EASM variations over the last 3 kyrs in southwestern Japan. A
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
Scientific Reports
Scientific Reports
Denitrification in the Arabian Sea is closely related to the monsoon-induced upwelling and subsequent phytoplankton production in the surface water. The δ15N values of bulk sediments collected at Site U1456 of the International Ocean Discovery Progr