Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Kunio Kai"'
Autor:
Kunio Kaiho
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract This study investigates the mechanisms underlying the varied climate changes witnessed during mass extinctions in the Phanerozoic Eon. Climate shifts during mass extinctions have manifested as either predominant global cooling or predominant
Externí odkaz:
https://doaj.org/article/38861df1bde94eab82f4a7e914170ea8
Autor:
Ryosuke Saito, Lars Wörmer, Heidi Taubner, Kunio Kaiho, Satoshi Takahashi, Li Tian, Masayuki Ikeda, Roger E. Summons, Kai-Uwe Hinrichs
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract The exact drivers for the end-Permian mass extinction (EPME) remain controversial. Here we focus on a ~10,000 yr record from the marine type section at Meishan, China, preceding and covering the onset of the EPME. Analyses of polyaromatic hy
Externí odkaz:
https://doaj.org/article/38fbabf478c04b5f99e0d77a8dbf9c5e
Autor:
Kunio Kaiho
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-8 (2022)
Abstract There have been five major mass extinctions and some minor mass extinctions of animals since early animal diversification 540–520 Myr ago. It is said that a sixth mass extinction is already underway. However, the future extinction magnitud
Externí odkaz:
https://doaj.org/article/36f77aae48b541d7a1de08aac985f647
Autor:
Kunio Kaiho
Publikováno v:
Heliyon, Vol 9, Iss 4, Pp e15221- (2023)
An environmental–animal crisis is currently ongoing and is becoming increasingly severe due to human activity. However, the magnitude, timing, and processes related to this crisis are unclear. This paper clarifies the likely magnitude and timing of
Externí odkaz:
https://doaj.org/article/71325d12ba3547c38884c3797e9773ca
Publikováno v:
Geothermics. 29:279-311
The Fushime geothermal field is located in a depression close to the coast line. The system is characterized by very high reservoir temperature (>350°C), and a high salinity production fluid. Geological analysis shows that the main reservoir in this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb71fea094b5a1cbfd6dbc1d27ecc90e
https://doi.org/10.1016/s0375-6505(99)00063-2
https://doi.org/10.1016/s0375-6505(99)00063-2
Publikováno v:
GEOCHEMICAL JOURNAL. 25:315-333
The chemical and physical features of the deeper part of the Fushime geothermal system (about 1000–2000 m depth), where temperatures exceed 300°C, have been revealed in the course of its exploration. The fluids discharged from wells are saline, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aeb0e8831d7c77837ab1dd55e7138c01
https://doi.org/10.2343/geochemj.25.315
https://doi.org/10.2343/geochemj.25.315
Autor:
Kunio Kai
Publikováno v:
GEOCHEMICAL JOURNAL. 15:63-68
Rb-Sr ages of biotite from the southern flank of Mt. Everest, eastern Nepal, range from 14.1 to 1.3m.y., the youngest biotite coexists with muscovite of 7.3m.y. These different ages for different samples reflect the difference in cooling history rela
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e59ba987ac0ed2c3a914c1f12d83c8bd
https://doi.org/10.2343/geochemj.15.63
https://doi.org/10.2343/geochemj.15.63
Autor:
Kunio Kai, Ichikazu Hayase
Publikováno v:
Journal of the Mass Spectrometry Society of Japan. 24:181-188
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc72a37d75d7c2dfab093ead84922f64
https://doi.org/10.5702/massspec1953.24.181
https://doi.org/10.5702/massspec1953.24.181
Autor:
Kunio Kaiho, Ryosuke Saito, Kosuke Ito, Takashi Miyaji, Raman Biswas, Li Tian, Hiroyoshi Sano, Zhiqiang Shi, Satoshi Takahashi, Jinnan Tong, Lei Liang, Masahiro Oba, Fumiko W. Nara, Noriyoshi Tsuchiya, Zhong-Qiang Chen
Publikováno v:
Heliyon, Vol 2, Iss 8 (2016)
The largest mass extinction of biota in the Earth’s history occurred during the Permian–Triassic transition and included two extinctions, one each at the latest Permian (first phase) and earliest Triassic (second phase). High seawater temperature
Externí odkaz:
https://doaj.org/article/14e6e1a230524d7fbe627a9d3a14455f