Coral skeletal records reveal the impact of short-term climatic cycles on the transition from Neanderthals to Homo Sapiens
| Project/Area Number |
15H03742
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Stratigraphy/Paleontology
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
山崎 敦子 北海道大学, 理学研究院, 特任助教 (40723820)
佐々木 圭一 金沢学院大学, 基礎教育機構, 准教授 (50340021)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2016: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2015: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
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| Keywords | 古環境 / OIS3 / 化石サンゴ記録 / 人類変革期 |
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| Outline of Final Research Achievements |
We analyzed trace elements and oxygen isotopes in fossil corals (Plesiastrea versipora and Porites sp.) from the time interval during MIS3 in Kikai Island. We found clear cyclic changes in interannual to decadal scales. Within the 22-year temperature records in Porites corals 55,000 years ago, the range of seasonal temperature variation dropped by half for 4 years. The cold (warm) water in summer (winter) could mainly reflect air temperature because we could not find same variation in oxygen isotopes of Tridacna shells. This drastic changes in air temperature could impact on the human life styles such as their food and habitability environment.
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Report
(4 results)
Research Products
(77 results)
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[Journal Article] Past summer upwelling events in the Gulf of Oman derived from a coral geochemical record2017
Author(s)
Watanabe, T.K., Watanabe, T., Yamazaki, A., Pfeiffer, M., Garbe-Schonberg, D., Claereboudt, M. R.
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Journal Title
Scientific Reports
Volume: 7
Issue: 1
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Sea surface temperature variations during the Holocene reconstructed from corals (Kikai Island, Japan)2017
Author(s)
Kajita, T., Yamazaki, A., Watanabe, T.K., Wu, C.C., Shen, C.C., Watanabe, T.
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Journal Title
Geochemical Journal
Volume: 印刷中
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Temporal and vertical distributions of anthropogenic236U in the Japan Sea using a coral core and seawater samples2016
Author(s)
Sakaguchi,A., Nomura,T.,Steier,P., Gloser,R., Sasaki,K., Watanabe,T., Nakakuki,T., Takahashi,Y., Yamano,H.
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Journal Title
Journal of Geophysical Research: Oceans
Volume: 121
Issue: 1
Pages: 4-13
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Response of Acropora digitifera to ocean acidification: constraints from δ11B, Sr, Mg and Ba compositions of aragonitic skeletons cultured under variable seawater pH2015
Author(s)
Tanaka, K., Holcomb, M., Takahashi, A., Kurihara, H., Asami, R., Shinjo, R., Sowa, K., Rankenburg, K., Watanabe, T., McCulloch, M.
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Journal Title
Coral Reef
Volume: 34
Issue: 4
Pages: 1139-1149
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] High-resolution climate reconstruction using coral skeletons from GreenIsland in Taiwan -Sea surface temperature calibaration-2017
Author(s)
Ikeda, M., Watanabe, T., Omori, K., Watanabe, T. K., Yamazaki, A., HougWei, C., Shen, C.-C.
Organizer
KIKAI international symposium for coral reef sciences 2017
Related Report
Int'l Joint Research
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[Presentation] Change in nitrogen fixation derived from Caribbean coral skeletons2017
Author(s)
Yamazaki, A., Hetzinger, S., J. von Reumont, Manfrino, C., Tsunogai, U., Watanabe, T.
Organizer
GeoBremen 2017
Related Report
Int'l Joint Research
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[Presentation] Earthquake and tsunami archives in coral growth parameters and geochemical records2017
Author(s)
Ito, S., Yamazaki, A., Yano, M., Watanabe, T. K, Putra, T. E., Nishimura, Y., Watanabe, T.
Organizer
GeoBremen 2017
Related Report
Int'l Joint Research
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[Presentation] 喜界島サンゴが解き明かす気候変動2016
Author(s)
Kajita, T., Yamazaki, A., Watanabe, T.K., Wu, C.C., Shen, C.C., Watanabe, T.
Organizer
喜界島サンゴ礁化学シンポジウム2016
Place of Presentation
喜界町役場コミュニティーホール（鹿児島県喜界町）
Year and Date
2016-08-05
Related Report
Int'l Joint Research
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[Presentation] サンゴ礁ってなに？2016
Author(s)
山崎 敦子
Organizer
子ども博物学士講座
Place of Presentation
龍郷町役場（鹿児島県龍郷町）
Year and Date
2016-05-28
Related Report
Invited
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[Presentation] 喜界島のサンゴが語る地球環境変動2015
Author(s)
渡邊 剛、本郷 宙軌、山崎 敦子
Organizer
第一回 サンゴ礁科学セミナー
Place of Presentation
喜界町役場コミュニティーホール（鹿児島県喜界島）
Year and Date
2015-12-19
Related Report
Invited
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[Presentation] Environmental changes and coral growth histories during last 100 years recorded in mid-latitude massive Porites corals2015
Author(s)
Tsuyoshi Watanabe, Atsuko Yamazaki, Takashi Kawamura, Jumpei Isasa, Kanae Kamimura, Kazuto Ohmori, Tsuzumi Miyaji, hoko Sekiya, Kohki Sowa, Takashi Nakamura, Saori Ito, Rie Nakaya, Hiroto Kajita,Fumihito Iwase, Keiichi Nomura, Kaoru Sugihara, Osamu Abe, Tatsuhiko Sakamoto, Masafumi Murayama, Hiroya Yamano
Organizer
喜界島国際サンゴ礁科学シンポジウム
Place of Presentation
喜界町中央公民館（鹿児島県喜界島）
Year and Date
2015-08-23
Related Report
Int'l Joint Research
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