Relationship between evolution-extinction-recovery and redox-climate changes

• Project/Area Number: 25247084
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Stratigraphy/Paleontology
• Research Institution: Tohoku University
• Principal Investigator: Kaiho Kunio 東北大学, 理学(系)研究科(研究院), 教授 (00143082)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥45,760,000 (Direct Cost: ¥35,200,000、Indirect Cost: ¥10,560,000); Fiscal Year 2015: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2014: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000); Fiscal Year 2013: ¥34,710,000 (Direct Cost: ¥26,700,000、Indirect Cost: ¥8,010,000)
• Keywords: 大量絶滅 / 大進化 / 酸素 / すす / バイオマーカー / 古気候 / 大気海洋 / エアロゾル / 土壌流出 / 気候変動 / 進化 / 絶滅 / 気候 / 古生態

Outline of Final Research Achievements

Organic molecules derived from the earliest life have been detected from the oldest shallow-sea sedimentary rocks from Labrador, Canada, the age of which is >3.95 Ga. Local oxic conditions at 2.7 Ga, and subsequently global oxidation at 2.6-2.2 Ga. Oceanic redox changes played a crucial role in driving the evolution and extinction of early animals during 635-520 Ma. The low oxygen surface water accompanied by the shortage of bioessential elements and massive soil, mud, and nutrient intrusion in the oceans contributed to the main extinction at the end of the Permian. At the Cretaceous/Paleogne boundary, the stratospheric aerosol caused sufficiently colder climates at the mid-high latitudes and draught at low latitudes on land and surface water cooling with limited cessation of photosynthesis in oceans for several years, which caused the mass extinction.

Research Products

• [Int'l Joint Research] 中国地質大学（武漢）(中国)
• [Int'l Joint Research] プレトリア大学(南アフリカ)
• [Int'l Joint Research] ニューサウスウエールズ大学(オーストラリア)
• [Int'l Joint Research] ベルギー王立自然史博物館(ベルギー)
• [Journal Article] Secular changes in environmental stresses and eukaryotes during the early Triassic to the early middle Triassic (2016)
  • Author(s): Saito, R., Kaiho, K., Oba, M., Tong, J., Chen, Z. Q., Takahashi, S., Chen, J., Tian, L., & Biswas, R. K
  • Journal Title: Palaeogeography, Palaeoclimatology, Palaeoecology Volume: 451 Pages: 35-45
  • DOI: 10.1016/j.palaeo.2016.03.006
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Predominance of archaea-derived hydrocarbons in an Early Triassic microbialite (2015)
  • Author(s): Saito, R., Kaiho, K., Oba, M., Fujibayashi, M., Tong, J., & Tian, L
  • Journal Title: Organic Geochemistry Volume: 85 Pages: 66-75
  • DOI: 10.1016/j.orggeochem.2015.05.004
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Redox conditions in the end-Early Triassic Panthalassa. (2015)
  • Author(s): Takahashi, S., Yamasaki, S. I., Ogawa, K., Kaiho, K. & Tsuchiya, N
  • Journal Title: Palaeogeography, Palaeoclimatology, Palaeoecology Volume: 432 Pages: 15-28
  • DOI: 10.1016/j.palaeo.2015.04.018
  • Peer Reviewed / Open Access
• [Journal Article] Complete biotic and sedimentary records of the Permian-Triassic transition from Meishan section, South China: Ecologically assessing mass extinction and its aftermath. (2015)
  • Author(s): Chen, Z.Q., Yang, H., Luo, M., Benton, M.J., Kaiho, K., et al.
  • Journal Title: Earth-Science Reviews Volume: 149 Pages: 63-103
  • DOI: 10.1016/j.earscirev.2014.10.005
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Reply to the comment on Kaiho et al., "A forest fire and soil erosion event during the Late Devonian mass extinction" [Palaeogeogr. Palaeoclimatol. Palaeoecol. 392 (2013): 272-280] (2015)
  • Author(s): Kaiho, K.
  • Journal Title: Palaeogeography, Palaeoclimatology, Palaeoecology Volume: 417 Pages: 573-575
  • DOI: 10.1016/j.palaeo.2014.10.016
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Bioessential element-depleted ocean following the euxinic maximum of the end-Permian mass extinction (2014)
  • Author(s): Satoshi Takahashi, Shin-ichi Yamasaki, Yasumasa Ogawa, Kazuhiko Kimura, Kunio Kaiho, Takeyoshi Yoshida, Noriyoshi Tsuchiya
  • Journal Title: Earth and Planetary Science Letters Volume: 393 Pages: 94-104
  • DOI: 10.1016/j.epsl.2014.02.041
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A probable shark dorsal fin spine fragment from the Early Triassic of the Arrow Rocks sequence, Whangaroa, northern New Zealand (2014)
  • Author(s): Grant-Mackie J., Yamakita S., Matsumoto T., Hori R.S., Takemura A., Aita Y., Takahashi S., Campbell H.J.
  • Journal Title: New Zealand Journal of Geology and Geophysics Volume: 57 Pages: 295-299
  • DOI: 10.1016/j.palaeo.2014.02.033
  • Peer Reviewed
• [Journal Article] Extreme euxinia just prior to the Middle Triassic biotic recovery from the latest Permian mass extinction (2014)
  • Author(s): Saito, R., Oba, M., Kaiho, K., Schaeffer, P., Adam, P., Takahashi, S., Watanabe Nara, F., Chen, Z.Q., Tong, J., Tsuchiya, N.
  • Journal Title: Organic Geochemistry Volume: 73 Pages: 113-122
  • DOI: 10.1016/j.orggeochem.2014.05.007
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A spike of woody plant biomarkers in the deep-sea iridium layer at the Cretaceous/Paleogene boundary (2014)
  • Author(s): Mizukami, T., Kaiho, K., Oba, M.
  • Journal Title: Palaeogeography Palaeoclimatology Palaeoecology Volume: 412 Pages: 241-248
  • DOI: 10.1016/j.palaeo.2014.07.041
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Devonian-Carboniferous transition containing a Hangenberg Black Shale equivalent in the Pho Han Formation on Cat Ba Island, northeastern Vietnam (2014)
  • Author(s): Komatsu, T., Kato,S., Hirata, K., Takashima, R., Ogata, Y., Oba, M., Naruse, H., Ta, O. H., Nguyen, P. D., Dang, H. T., Doan, T. N., Nguyen, H. H., Sakata, S., Kaiho, K., Koenigshof, P.
  • Journal Title: Palaeogeography, Palaeoclimatology, Palaeoecology Volume: in press Pages: 30-43
  • DOI: 10.1016/j.palaeo.2014.03.021
  • Peer Reviewed
• [Journal Article] A forest fire and soil erosion event during the Late Devonian mass exti nction, 392, 272-280. (2013)
  • Author(s): Kunio Kaiho, Susumu Yatsua, Masahiro Oba, Paul Gorjan, Jean-Georges Casier. Masayuki Ikeda
  • Journal Title: Palaeogeography, Palaeoclimatology, Palaeoecology Volume: 392 Pages: 272-280
  • DOI: 10.1016/j.palaeo.2013.09.008
  • Peer Reviewed
• [Journal Article] Cretaceous Oceanic Anoxic Event 2 in the Arobes section, northern Spain: nannofossil fluctuations and isotope events. (2013)
  • Author(s): Melinte-Dobrinescu, M.C., Bernardez, E., Kaiho, K., Lamolda, M.A.
  • Journal Title: Geological Society, London, Special Publications Volume: 382 Issue: 1 Pages: 63-84
  • DOI: 10.1144/sp382.7
  • Peer Reviewed
• [Journal Article] Microbially induced sedimentary structures from the MesoproterozoicHuangqikou Formation, Helan Mountain region, northern China. (2013)
  • Author(s): Lan, Z-W., Chen, Z-Q., Lia, X-H., Kaiho., K.
  • Journal Title: Precambrian Research Volume: 233 Pages: 73-92
  • DOI: 10.1016/j.precamres.2013.04.006
  • Peer Reviewed
• [Journal Article] Impacts of a massive release of methane and hydrogen sulfide on oxygen and ozone during the late Permian mass extinction. (2013)
  • Author(s): Kaiho, K., Koga, S.
  • Journal Title: Glob. Planet. Change Volume: 107 Pages: 91-101
  • DOI: 10.1016/j.gloplacha.2013.04.004
  • Peer Reviewed
• [Journal Article] Repeated anoxia-extinction episodes progressing from slope to shelf during the latest Cenomanian. (2013)
  • Author(s): Kaiho, K., Katabuchi, M., Oba, M., Lamolda, M.
  • Journal Title: Gondwana Res. Volume: 25 Issue: 4 Pages: 1357-1368
  • DOI: 10.1016/j.gr.2012.12.008
  • Peer Reviewed
• [Journal Article] Sulphur isotope profiles in the pelagic Panthalassic deep sea during the Permian-Triassic transition (2013)
  • Author(s): Takahashi, S., Kaiho, K., Hori, R. S., Gorjan, P., Watanabe, T., Yamakita, S., Aita, Y., Takemura, A., Spörli, K.B., Kakegawa, T., and Oba, M
  • Journal Title: Global and Planetary Change Volume: 105 Pages: 68-78
  • DOI: 10.1016/j.gloplacha.2012.12.006
  • Peer Reviewed
• [Journal Article] A terrestrial vegetation turnover in the middle of the Early Triassic. (2013)
  • Author(s): Saito, R., Kaiho, K., Oba, M., Takahashi, S., Chen, Z-Q., Tong, J.
  • Journal Title: Glob. Planet. Change Volume: 105 Pages: 152-159
  • DOI: 10.1016/j.gloplacha.2012.07.008
  • Peer Reviewed
• [Presentation] Deep-sea Circulation Turnover Recognized in the Transition Period from the Warm Period to the Cool Period in the Cretaceous (2016)
  • Author(s): SHUSUKE OKAWARA, KUNIO KAIHO, MINORU IKEHARA
  • Organizer: Goldschmidt
  • Place of Presentation: Yokohama
  • Year and Date: 2016-06-27
  • Int'l Joint Research
• [Presentation] 35-34億年前と27-22億年前の地球表層の酸素増加 (2016)
  • Author(s): 海保邦夫・片山悠貴・川瀬智大・Wladyslaw Altermann・ Martin Van Kranendonk・小宮剛・齊藤諒介
  • Organizer: 日本地球惑星科学連合2016年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-25
• [Presentation] Oxygen and bioessential element-depleted surface waters with massive soil intrusion in the end-Permian mass extinction (2016)
  • Author(s): 海保邦夫・齊藤諒介・伊藤幸佑・宮地崇至・Li Tian・佐野弘好・Zhiqiang Shi・高橋聡・Jinnan Tong・Lei Liang・大庭雅寛・Fumiko W. Narae, Noriyoshi Tsuchiyae, Zhong-Qiang Chen
  • Organizer: 日本地球惑星科学連合2016年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-25
• [Presentation] グローバルすすエアロゾルによる低緯度干ばつと寒冷化が起こした白亜紀―古第三紀境界大量絶滅 (2016)
  • Author(s): 海保邦夫・大島長・足立恭将・足立光司・水上拓也・藤林 恵・齊藤諒介
  • Organizer: 日本地球惑星科学連合2016年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-25
• [Presentation] Big Bang of life: unique composition of organic molecules at >3.95 Ga (2016)
  • Author(s): Kunio Kaiho, Ryosuke Saito, Tsuyoshi Komiya, Wladyslaw Altermann, Martin Van Kranendonk
  • Organizer: 日本地球惑星科学連合2016年度連合大会 (国際セッション）
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-24
  • Int'l Joint Research
• [Presentation] Deep-sea Circulation Turnover Recognized in the Transition Period from the Warm Period to the Cool Period in the Cretaceous (2016)
  • Author(s): SHUSUKE OKAWARA, KUNIO KAIHO, MINORU IKEHARA
  • Organizer: 日本地球惑星科学連合2016年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2016-05-24
• [Presentation] Organic geochemical characterization of the Lower-Middle Triassic sedimentary rocks from south China (2015)
  • Author(s): Ryosuke Saito, Kunio Kaiho, Masahiro Oba, Satoshi Takahashi, Zhong-Qiang Chen, Li Tian, Jing Chen, Jinnan Tong
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco (USA)
  • Year and Date: 2015-12-14
  • Int'l Joint Research
• [Presentation] 初期地球の有機分子・地球表層酸化・動物初期進化時の酸素環境・最大の大量絶滅とその後の酸素環境・恐竜の絶滅プロセスにおける新知見 (2015)
  • Author(s): 海保邦夫，小宮剛，片山悠貴，川瀬智大，Wladyslaw Altermann，Martin Van Kranendonk，静谷あてな，山田憲司，菊池みのり，千馬直登，大庭雅寛，齊藤諒介，伊藤幸佑，宮地崇至，佐野弘好，Jinnan Tong, Zhong-Qiang Chen, Li Tian, Zhiqiang Shi, 高橋聡, 山北聡, 大島長, 足立恭将, 足立光司, 水上拓也, 藤林恵
  • Organizer: 地球環境史学会
  • Place of Presentation: 東京大学本郷キャンパス
  • Year and Date: 2015-11-22
• [Presentation] BIOTIC AND OCEAN-REDOX CHANGES DURING THE EARLY-MIDDLE TRIASSIC (2015)
  • Author(s): SAITO, Ryosuke, KAIHO, Kunio, OBA, Masahiro, TAKAHASHI, Satoshi, CHEN, Zhong Qiang, TIAN, Li, CHEN, Jing and TONG, Jinnan
  • Organizer: GSA Annual Meeting
  • Place of Presentation: Baltimore (USA)
  • Year and Date: 2015-11-04
  • Int'l Joint Research
• [Presentation] 生物の大進化・大絶滅と海洋酸素の関係 (2015)
  • Author(s): 海保邦夫・静谷あてな・山田憲司・大庭雅寛・ 菊池みのり・陳中強・童金南・小宮剛・千馬直登・ 高橋聡・伊藤幸佑・宮地崇・齊藤諒介・佐野弘好
  • Organizer: 日本古生物学会
  • Place of Presentation: 筑波、産業総合研究所
  • Year and Date: 2015-06-27
• [Presentation] 成層圏グローバル燃焼煙雲が恐竜の絶滅を起こした (2015)
  • Author(s): 海保邦夫・大島長・足立恭将・足立光司・ 水上拓也・藤林 恵・齊藤亮介
  • Organizer: 日本古生物学会
  • Place of Presentation: 筑波、産業総合研究所
  • Year and Date: 2015-06-27
• [Presentation] 後期白亜紀の深海底生有孔虫の炭素酸素同位体比変動から見た海洋循環と水温変動 (2015)
  • Author(s): 大河原秀祐 ; 海保邦夫 ; 池原 実
  • Organizer: 日本地球惑星科学連合2015年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2015-05-28
• [Presentation] 全球凍結後に初期動物の多様化と同時に起きた３回の海洋酸化事件 (2015)
  • Author(s): Kunio Kaiho, Atena Shizuya, Kenji Yamada, Masahiro Oba, Minori Kikuchi, Zhong-Qiang Chen, Jinnan Tong, Tsuyoshi Komiya, Naoto Senba, Li Tian, Paul Gorjan, Satoshi Takahashi
  • Organizer: 日本地球惑星科学連合2015年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2015-05-24
• [Presentation] ペルム紀末大量絶滅時の表層水還元化と大量土壌流入 (2015)
  • Author(s): Kunio Kaiho, Kosuke Ito, Ryosuke Saito, Takashi Miyaji, Masahiro Oba, Satoshi Takahashi
  • Organizer: 日本地球惑星科学連合2015年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2015-05-24
• [Presentation] GSSP セクションに記録された後期デボン紀大量絶滅時の土壌浸食事件 Soil erosion event during the Late Devonian mass extinction recorded at the GSSP section (2015)
  • Author(s): 三浦 真実; 海保 邦夫; カジエ ジャンジョルジュ
  • Organizer: 日本地球惑星科学連合2015年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2015-05-24
• [Presentation] 白亜紀―古第三紀境界における衝突燃焼煙雲の有機地球化学的証拠: 恐竜絶滅の原因か？ (2015)
  • Author(s): 海保邦夫 水上拓也 藤林 恵 齊藤亮介
  • Organizer: 日本地球惑星科学連合2015年度連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2015-05-24
• [Presentation] 地球生命環境史重大事変に関する5つの新知見 (2015)
  • Author(s): 海保邦夫*・静谷あてな・齊藤 諒介・大庭雅寛・水上拓也・山田憲司・菊池みのり・宮地崇至・Raman Biswas・千馬直登・伊藤幸佑・片山悠貴・川瀬智大・藤林恵・奈良郁子・土屋範芳・小宮剛・高橋聡・Jinnan Tong・Zhong-Qiang Chen・Li Tian・Zhiqiang Shi・Paul Gorjan・Wladyslaw Altermann
  • Organizer: 古海洋・古気候に関するシンポジウム
  • Place of Presentation: 東京大学大気海洋研究所
  • Year and Date: 2015-01-06
• [Presentation] ベトナム東部におけるデボン紀―石炭紀境界近傍の海洋環境変動：土壌流入と海洋還元 (2015)
  • Author(s): 小形優加里*・海保邦夫・大庭雅寛・高嶋礼詩・小松俊文・平田健人・奈良郁子・土屋範芳
  • Organizer: 古海洋・古気候に関するシンポジウム
  • Place of Presentation: 東京大学大気海洋研究所
  • Year and Date: 2015-01-06
• [Presentation] Abrupt surface-water reducing during the end-Permian mass extinction and combustion of oil by the end-Cretaceous asteroid impact (2014)
  • Author(s): Kunio Kaiho*, Takashi Miyaji, Kosuke Ito, Takuya Mizukami, Ryosuke Saito, Masahiro Oba, Li Tian, Jinnan Tong, Zhiqiang Shi
  • Organizer: GSA annual meeting
  • Place of Presentation: Vancouver (USA)
  • Year and Date: 2014-10-20
  • Int'l Joint Research
• [Presentation] Oceanic oxidation mechanisms spanning the snowball earth and early animal diversification (2014)
  • Author(s): Kaiho, Kunio*; Shizuya, Atena; Yamada, Kenji; Oba, Masahiro; Kikuchi, Minori; Senba, Naoto; Chen, Zhong Qiang; Tong, Jinnan
  • Organizer: GSA annual meeting
  • Place of Presentation: Vancouver (USA)
  • Year and Date: 2014-10-19
  • Int'l Joint Research
• [Presentation] ペルム紀末大量絶滅後の海洋中必須元素の減少 (2014)
  • Author(s): 高橋聡*・山崎慎一・小川泰正・木村和彦・海保邦夫・土屋範芳
  • Organizer: 日本地質学会第121年学術大会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2014-09-14
• [Presentation] Bioessential element-depleted ocean following the euxinic maximum of the end-Permian mass extinction (2014)
  • Author(s): Satoshi Takahashi*, Shin-ichi Yamasaki, Yasumasa Ogawa, Kazuhiko Kimura, Kunio Kaiho, Takeyoshi Yoshida, Noriyoshi Tsuchiya
  • Organizer: Asia Oceania Geosciences Society 11th Annual Meeting
  • Place of Presentation: Sapporo
  • Year and Date: 2014-07-30
  • Int'l Joint Research / Invited
• [Presentation] Increasingly strengthened euxina with cyanobacterial dominance and instant emergence of archaeal microbialite in the Early Triassic (2014)
  • Author(s): Ryosuke Saito*, Kunio Kaiho, Masahiro Oba, Jinnan Tong, Zhong-Qiang Chen, Satoshi Takahashi, Jing Chen
  • Organizer: Asia Oceania Geosciences Society 11th Annual Meeting
  • Place of Presentation: Sapporo
  • Year and Date: 2014-07-30
  • Int'l Joint Research
• [Presentation] A global ocean oxidation event immediately after the Early Triassic thermal maximum (2014)
  • Author(s): Kunio Kaiho*, Satoshi Takahashi, Paul Gorjan, Zhong-Qiang Chen, Jinnan Tong
  • Organizer: Asia Oceania Geosciences Society 11th Annual Meeting
  • Place of Presentation: Sapporo
  • Year and Date: 2014-07-30
  • Int'l Joint Research
• [Presentation] Paleoenvironmental changes during the Neoproterozoic-Cambrian, Permian-Triassic, and Cretaceous-Paleogene transitions, evidenced by biomarkers (2014)
  • Author(s): Kunio KAIHO*, Masahiro OBA, Atena SHIZUYA, Kenji YAMADA, Minori KIKUCHI, Naoto SENBA, Takashi MIYAJI, Yuqing LIU, Ryosuke SAITO, Kosuke ITO, Takuya MIZUKAMI
  • Organizer: Asia Oceania Geosciences Society 11th Annual Meeting
  • Place of Presentation: Sapporo
  • Year and Date: 2014-07-30
  • Int'l Joint Research
• [Presentation] Marine biomass changes after the Neoproterozoic Marinoan Glaciation (2014)
  • Author(s): Atena SHIZUYA*, Kunio KAIHO, Zhong-Qiang CHEN, Paul GORJAN, Masahiro OBA, Satoshi TAKAHASHI
  • Organizer: Asia Oceania Geosciences Society 11th Annual Meeting
  • Place of Presentation: Sapporo
  • Year and Date: 2014-07-28
  • Int'l Joint Research
• [Presentation] オーストラリアにおける新原生代マリノアン氷期後の海洋生物バイオマス変動 (2014)
  • Author(s): 静谷あてな*・海保邦夫・チェンツォンチャン・ゴージャンポール・大庭雅寛・高橋聡
  • Organizer: 日本地球惑星科学連合2014年度連合大会
  • Place of Presentation: 横浜
  • Year and Date: 2014-04-28
• [Presentation] 全球凍結と初期動物多様化時における海洋酸化メカニズム (2014)
  • Author(s): 海保邦夫*・静谷あてな・大庭雅寛・山田憲司・菊池みのり・千馬直登・チェンツォンチャン・トンジンナン・高橋聡・ティアンリー・小宮剛
  • Organizer: 日本地球惑星科学連合2014年度連合大会
  • Place of Presentation: 横浜
  • Year and Date: 2014-04-28
• [Presentation] 前期三畳紀極端温暖化直後の全球的海洋酸化イベント (2014)
  • Author(s): 海保邦夫*・高橋聡・大庭雅寛・ゴージャンポール 他
  • Organizer: 日本地球惑星科学連合2014年度連合大会
  • Place of Presentation: 横浜
  • Year and Date: 2014-04-28
• [Presentation] 前期三畳紀におけるシアノバクテリアの繁栄 (2014)
  • Author(s): 齊藤 諒介*・海保邦夫・大庭雅寛 他
  • Organizer: 日本地球惑星科学連合2014年度連合大会
  • Place of Presentation: 横浜
  • Year and Date: 2014-04-28
• [Presentation] ペルム紀末大量絶滅後の海水モリブデン濃度の減少 (2014)
  • Author(s): 高橋聡*・山崎慎一・小川泰正・木村和彦・海保邦夫・土屋範芳
  • Organizer: 日本地球惑星科学連合2014年度連合大会
  • Place of Presentation: 横浜
  • Year and Date: 2014-04-28
• [Presentation] Paleoenvironmental changes during the Neoproterozoic-Cambrian, Permian-Triassic, and Cretaceous-Paleogene transitions, evidenced by biomarkers (2014)
  • Author(s): Kunio Kaiho*, Masahiro Oba, Atena Shizuya, Kenji Yamada, Minori Kikuchi, Naoto Senba, Takashi Miyaji, Yuqing Liu, Ryosuke Saito, Kosuke Ito, Takuya Mizukami
  • Organizer: AOGS
  • Place of Presentation: 札幌
• [Presentation] Increasingly strengthened euxina with cyanobacterial dominance and instant emergence of archaeal microbialite in the Early Triassic (2014)
  • Author(s): Ryosuke Saito*, Kunio Kaiho, Masahiro Oba, Jinnan Tong, Zhong-Qiang Chen, Satoshi Takahashi, Jing Chen
  • Organizer: AOGS
  • Place of Presentation: 札幌
• [Presentation] A global ocean oxidation event immediately after the Early Triassic thermal maximum (2014)
  • Author(s): Kunio Kaiho*, Satoshi Takahashi, Paul Gorjan, Zhong-Qiang Chen, Jinnan Tong
  • Organizer: AOGS
  • Place of Presentation: 札幌
• [Presentation] Marine biosphere in Australia after the Neoproterozoic Marinoan Glaciation evidenced by sedimentary organic molecules (2014)
  • Author(s): Atena Shizuya*, Kunio Kaiho, Zhong-Qiang Chen, Paul Gorjan, Masahiro, Oba, Satoshi Takahashi
  • Organizer: AOGS
  • Place of Presentation: 札幌
• [Presentation] 全球凍結と初期動物多様化時における海洋酸化メカニズム
  • Author(s): 海保邦夫*; 静谷あてな; 大庭雅寛; 山田憲司; 菊池みのり; 千馬直登; チェンツォンチャン; トンジンナ ン; 高橋聡; ティアンリー; 小宮剛
  • Organizer: 地球惑星連合大会
  • Place of Presentation: 横浜
• [Presentation] 前期三畳紀極端温暖化直後の全球的海洋酸化イベント
  • Author(s): 海保邦夫*; 高橋聡; ゴージャンポール; チェンツォンチャン; トンジンナン
  • Organizer: 地球惑星連合大会
  • Place of Presentation: 横浜
• [Presentation] オーストラリアにおける新原生代マリノアン氷期後の海洋生物バイオマス変動
  • Author(s): 静谷あてな*; 海保邦夫; チェンツォンチャン; ゴージャンポール
  • Organizer: 地球惑星連合大会
  • Place of Presentation: 横浜
• [Presentation] 前期三畳紀におけるシアノバクテリアの繁栄
  • Author(s): 齊藤諒介*, 海保邦夫, 大庭雅寛, 童金南, 陳中強, 高橋聡, 陳晶
  • Organizer: 地球惑星連合大会
  • Place of Presentation: 横浜
• [Presentation] 新原生代―カンブリア紀大進化時とペルム紀末大量絶滅後の海洋酸素環境 変動
  • Author(s): 海保邦夫*・大庭雅寛・静谷あてな・山田憲司・千馬 直登・菊池みのり・（東 北大学）、高橋聡（東京大学）、ポールゴージャン（ワシントン大）、トンジ ンナン・チェンツォンチャン（中国地質大）
  • Organizer: 2 0 1 3 年度古海洋・古気候に関するシンポジウム
  • Place of Presentation: 東京大学柏キャンパス
• [Presentation] ペルム紀最後期－三畳紀最初期の海洋酸化還元環境：中国の辺中路と上寺 と日本の菟原
  • Author(s): 宮地崇至*・海保邦夫・大庭雅寛・斉藤諒介（東北大学・院・理）、Shi Zhiqiang （成都理工大学）・土屋範芳(東北大学)、奈良郁子(東北大学)
  • Organizer: 2 0 1 3 年度古海洋・古気候に関するシンポジウム
  • Place of Presentation: 東京大学柏キャンパス
• [Presentation] Change from algal sea to cyanobacterial sea at the end of the Permian and reverse change at the end of the Early Triassic
  • Author(s): Ryosuke Saito*, Kunio Kaiho, Masahiro Oba, Jinnan Tong, Zhong-Qiang Chen, Jing Chen, Satoshi Takahashi, Li Tian
  • Organizer: GSA
  • Place of Presentation: デンバー、アメリカ合衆国
• [Presentation] ペルム紀末大量絶滅後の海水モリブデン濃度の減少
  • Author(s): 高橋聡; 山崎慎一；小川泰正；海保邦夫ほか
  • Organizer: 地球惑星連合大会
  • Place of Presentation: 横浜