修論発表会

修士二年の太田です。

1/28日から30日まで、地球惑星科学専攻の修士論文発表会がありました。
横山先生をはじめ、研究室のメンバーやAORIの皆には多くのサポートをいただき、無事発表を終えることができました。
この場を借りてお礼申し上げます。

来年度からもよろしくお願いいたします。

New Papers (Nature, Science, etc.) 2020/1/27

New Papers (Nature, Science, etc.)  2020/1/27



Nature Communications

1. No detectable Weddell Sea Antarctic Bottom Water export during the Last and Penultimate Glacial Maximum

Huang Huang, Marcus Gutjahr, Anton Eisenhauer & Gerhard Kuhn

Nature Climate Change

2. A coralline alga gains tolerance to ocean acidification over multiple generations of exposure

C. E. Cornwall, S. Comeau, T. M. DeCarlo, E. Larcombe, B. Moore, K. Giltrow, F. Puerzer, Q. D’Alexis & M. T. McCulloch

3. Substantial twentieth-century Arctic warming caused by ozone-depleting substances

L. M. Polvani, M. Previdi, M. R. England, G. Chiodo & K. L. Smith

PNAS

4. Oxidized micrometeorites suggest either high pCO₂ or low pN₂ during the Neoarchean

Rebecca C. Payne, Don Brownlee, and James F. Kasting

New Papers 2020 January 13-19, Elsevier

Chemical Geology

1.     Environmental conditions of deposition of the Lower Cretaceous lacustrine carbonates of the Barra Velha Formation, Santos Basin (Brazil), based on stable carbon and oxygen isotopes: A continental record of pCO2 during the onset of the Oceanic Anoxic Event 1a (OAE 1a) interval?

Raphael Pietzsch, Leonardo R. Tedeschi, Daniel M. Oliveira, Camila Wense Dias dos Anjos, Joselito C. Vazquez, Milene F. Figueiredo

2.     Origins of high δ18O in 3.7–3.6 Ga crust: A zircon and garnet record in Isua clastic metasedimentary rocks

Laure Gauthiez-Putallaz, Allen Nutman, Vickie Bennett, Daniela Rubatto

Paleogeography, Paleoclimatology, Paleoecology

3.     Late Pleistocene and Holocene paleoenvironmental reconstruction of a drowned karst isolation basin (Lošinj Channel, NE Adriatic Sea)

Dea Brunović, Slobodan Miko, Ozren Hasan, George Papatheodorou, Nikolina Ilijanić, Stefano Miserocchi, Annamaria Correggiari, Maria Geraga

4.     Permian–Triassic extinction pattern revealed by foraminifers and geochemical records in the central Persian Gulf, southern Iran

Nooshafarin Haghighat, Hossien Hashemi, Vahid Tavakoli, Galina P. Nestell

5.     Palynology, biostratigraphy, and paleoceanography of the Plio-Pleistocene at Ocean Drilling Program Site 887, Gulf of Alaska

Coralie Zorzi, Jens Matthiessen, Anne de Vernal

Quaternary International

6.     Magnetic, granulometric and geochemical characterizations of loess sections in the eastern Arid Central Asia: Implication for paleoenvironmental interpretations

Guanhua Li, Dunsheng Xia, Hao Lu, Youjun Wang, Jia Jia, Xianbin Liu, Xiaoqiang Yang

Quaternary Science Reviews

7.     Carbon, nitrogen, and oxygen isotopes of ostrich eggshells provide site-scale Pleistocene-Holocene paleoenvironmental records for eastern African archaeological sites

E.M. Niespolo, W.D. Sharp, C.A. Tryon, J.T. Faith, J. Lewis, K. Ranhorn, S. Mambelli, M.J. Miller, T.E. Dawson

8.     Timing and pathways of East Antarctic Ice Sheet retreat

Lindsay O. Prothro, Wojciech Majewski, Yusuke Yokoyama, Lauren M. Simkins, John B. Anderson, Masako Yamane, Yosuke Miyairi, Naohiko Ohkouchi

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New papers 2019/12/1130-2020/1/05 (Elsevier)

Chemical Geology

1.     Sources and radiocarbon ages of organic carbon in different grain size fractions of Yellow River-transported particles and coastal sediments

Tiantian Ge, Yuejun Xue, Xueyan Jiang, Li Zou, Xuchen Wang

Quaternary International

2.     Mineralogy of the core YRD-1101 of the Yellow River Delta: implications for sediment origin and environmental evolution during the last ∼1.9Myr

Jian Liu, Junqiang Zhang, Xiaodong Miao, Shujian Xu, Hongxia Wang

3.   The response of a dune succession from Lençóis Maranhenses, NE Brazil, to climate changes between MIS 3 & 2

André Zular, André O. Sawakuchi, Hong Wang, Carlos C.F. Guedes, Gelvam A. Hartmann, Plínio F. Jaqueto, Cristiano M. Chiessi, Francisco W. Cruz, Paulo C.F. Giannini, Vinícius K. Daros, Daniel Atencio, Ricardo I.F. Trindade

4.     Environmental changes on the west coast of the Gulf of Thailand during the 8.2 ka event 

Akkaneewut Chabangborn, Paramita Punwong, Karn Phountong, Worakamon Nudnara, Noppadon Yoojam, Assuma Sainakum, Krit Won-In, Penjai Sompongchaiyakul

Palaeogeography, Palaeoclimatology, Palaeoecology

5.   Paleoproduction and environmental change at Mono Lake (eastern Sierra Nevada) during the Pleistocene-Holocene transition

Bailee N. Hodelka, Michael M. McGlue, Susan Zimmerman, Guleed Ali, Irene Tunno

6.     Sedimentary charcoal proxy records of fire in Alaskan tundra ecosystems

Haidee R. Cadd, Jonathan Tyler, John Tibby, Jeff Baldock, Bruce Hawke, Cameron Barr, Melanie J. Leng

7.    The potential for rapid determination of charcoal from wetland sediments using infrared spectroscopy

Dongxue Han, Chuanyu Gao, Zicheng Yu, Xiaofei Yu, Yunhui Li, Jinxin Cong, Guoping Wang

Global and Planetary Change

8.   Millennial-scale vegetation history of the north-eastern Russian Arctic during the mid-Pliocene inferred from the Lake El'gygytgyn pollen record

Andrei A. Andreev, Pavel E. Tarasov, Volker Wennrich, Martin Melles

Geochimica et Cosmochimica Acta, Marine Geology,Quaternary Geochronology,Earth and Planetary Science Letters,Quaternary Science Reviewsno relevant

New Papers (Nature, Science, etc.) 2020/1/7

New Papers (Nature, Science, etc.)  2020/1/7



Geology

1. Dramatic weakening of the East Asian summer monsoon in northern China during the transition from the Medieval Warm Period to the Little Ice Age

Jianghu Lan ; Hai Xu ; Yunchao Lang ; Keke Yu ; Peng Zhou ; Shugang Kang ; Kangen Zhou ; Xulong Wang ; Tianli Wang ; Peng Cheng ; Dongna Yan ; Shiyong Yu ; Ping Che ; Yuanda Ye ; Liangcheng Tan

2. Magnetite magnetofossils record biogeochemical remanent magnetization in hydrogenetic ferromanganese crusts

Wei Yuan ; Huaiyang Zhou ; Zhenyu Yang ; James R. Hein ; Qunhui Yang

3. Late Paleogene emergence of a North American loess plateau

Fan M, Feng R, Geissman JW

Nature Communications

4. African cratonic lithosphere carved by mantle plumes

Nicolas Luca Celli, Sergei Lebedev, Andrew J. Schaeffer & Carmen Gaina

5. Climate change now detectable from any single day of weather at global scale

Sebastian Sippel, Nicolai Meinshausen, Erich M. Fischer, Enikő Székely & Reto Knutti

PNAS

6. Disappearance of the last tropical glaciers in the Western Pacific Warm Pool (Papua, Indonesia) appears imminent

Donaldi S. Permana, Lonnie G. Thompson, Ellen Mosley-Thompson, Mary E. Davis, Ping-Nan Lin, Julien P. Nicolas, John F. Bolzan, Broxton W. Bird, Vladimir N. Mikhalenko, Paolo Gabrielli, Victor Zagorodnov, Keith R. Mountain, Ulrich Schotterer, Wido Hanggoro, Muhammad N. Habibie, Yohanes Kaize, Dodo Gunawan, Gesang Setyadi,   Raden D. Susanto, Alfonso Fernández, and Bryan G. Mark

AGU 100 !!

AGU was established in 1919. There have been successes and failures, controversies and consensus, but as we look back over 100 years of accomplishments, one thing is certain: The Earth and space sciences will only increase in importance over the next 100 years (from AGU website).

I am very greatful for this opportunity to join AGU held from the 11^th to the 15^th of December in San Francisco. It was absolutely inspiring, encouraging and assuring for my research and career choice.

“I absolutely know, I absolutely know my journey to medicine, space exploration, engineering, 100 year starship started when I was a little girl in the south side of Chicago”. This is the beginning part of Dr. Mae Jaemison’s presidential lecture on the 1^st day of AGU. When I saw her biography and story at the science museum in Kansas, the information on the wall spoke so powerful that I kept standing in front of her biography. Words cannot describe how much I was thrilled to listen to her lecture.

Being in research is an attempt to face the uncertain to produce something certain. Also it is continuous and resilient efforts to identify and quantify how things work in nature. Dealing with uncertainty could be extremely challenging and draining at times, but if we are certain when and why we started our journey to earth and space science like Dr. Jaemison, I think we are always on the right track . Have a fruitful 2020 :)

Dr. Yokoyama

Naoto

Tomo

Fun night with Naoto, Yusuke, Dr. Webster (Univ. of Sydney),  Dr. Oda (AIST), Dr. McLean (University of Kansas), Dr. Nishida (JSPS),  Donovin , Tomo and  Dr. Sinclair (Victoria University of Wellington)