New Papers 2019 December 16-22 (AGU, EGU, GSA)

Geochemistry, Geophysics, Geosystems

1.     Intensified ocean deoxygenation during the end Devonian mass extinction

Jiangsi Liu, Genming Luo, Zunli Lu, Wanyi Lu, Wenkun Qie, Feifei Zhang, Xiangdong Wang, Shucheng Xie

Geophysical Research Letters

2.     Assessing the Contributions of Comet Impact and Volcanism Towards the Climate Perturbations of the Paleocene–Eocene Thermal Maximum

Zeyang Liu, Daniel E. Horton, Clay Tabor, Bradley B. Sageman, Lawrence M.E. Percival, Benjamin C. Gill, David Selby

3.     Paleogene marine and terrestrial development of the West Antarctic Rift System

J.J. Coenen, R. Scherer, P. Baudoin, S. Warny, I.S. Castañeda, R. Askin

4.     The northwestern Greenland Ice Sheet during the Early Pleistocene was similar to today

Andrew J. Christ, Paul R. Bierman, Paul C. Knutz, Lee B. Corbett, Julie C. Fosdick, Elizabeth K. Thomas, Owen C. Cowling, Alan J. Hidy, Marc W. Caffee

5.     Dynamics of Deep Ocean Eastern Boundary Currents

Xiaoting Yang, Eli Tziperman, Kevin Speer

JGR Oceans

6.     The spatial and temporal variability of Mn speciation in the coastal Northwest Atlantic Ocean

V.E. Oldham, C.H. Lamborg, C.M. Hansel 

Climate of the Past

7.     A 120 000-year record of sea ice in the North Atlantic?
Niccolò Maffezzoli, Paul Vallelonga, Ross Edwards, Alfonso Saiz-Lopez, Clara Turetta, Helle Astrid Kjær, Carlo Barbante, Bo Vinther, and Andrea Spolaor

8.     Holocene atmospheric iodine evolution over the North Atlantic
Juan Pablo Corella, Niccolo Maffezzoli, Carlos Alberto Cuevas, Paul Vallelonga, Andrea Spolaor, Giulio Cozzi, Juliane Müller, Bo Vinther, Carlo Barbante, Helle Astrid Kjær, Ross Edwards, and Alfonso Saiz-Lopez

9.     Spiky fluctuations and scaling in high-resolution EPICA ice core dust fluxes
Shaun Lovejoy and Fabrice Lambert

Zouさん・Zeyuさん送別会

こんにちは、M1の清水です。

先日横山研に研究生として留学されていたZouさんとZeyuさんの送別会が行われました。

Zouさんは去年の12月から、Zeyuさんは今年の8月からそれぞれ滞在されていました。

今回の送別会は流山にある中華料理屋さんで開かれ、中国の皆さんも絶賛の本場の美味しい中国料理を楽しみました。僕の個人的な中華料理の好物は酢豚ですが、今回出てきた料理の中では特にエビマヨが絶品でした。

また中国から一時帰国中の佐藤さんも駆けつけてくださり、近況報告や思い出話などで盛り上がりました。

会の最後には横山研究室からZouさんとZeyuさんにメンバーからのメッセージが書かれた色紙とプレゼントが送られました。その後ZouさんとZeyuさんがそれぞれスピーチをしてくださり、お二人とも充実した留学となったことが伺えました。

Zouさん、Zeyuさんこれまでありがとうございました！

またお二人にお会いできるのを楽しみにしています。

Zouさん

Zeyuさん

New Papers (Nature, Science, etc.) 12/17/2019

New Papers (Nature, Science, etc.)  12/17/2019



Nature Climate Change

1. Event attribution and partisanship shape local discussion of climate change after extreme weather

Hilary Boudet, Leanne Giordono, Chad Zanocco, Hannah Satein & Hannah Whitley

Nature Communications

2. Increases in temperature do not translate to increased flooding

Conrad Wasko, Ashish Sharma & Dennis P. Lettenmaier

PNAS

3. Resolving seasonal rainfall changes in the Middle East during the last interglacial period

Ian J. Orland, Feng He, Miryam Bar-Matthews, Guangshan Chen, Avner Ayalon, and John E. Kutzbach

Geology

4. Sea level, carbonate mineralogy, and early diagenesis controlled δ¹³C records in Upper Ordovician carbonates

David S. Jones ; R. William Brothers ; Anne-Sofie Crüger Ahm ; Nicholas Slater ; John A. Higgins ; David A. Fike

Elsevier 17/12/2019

Earth and Planetary Science Letters

1. Two billion years of mantle evolution in sync with global tectonic cyclesJamie A. Cutts, Matthijs A. Smit, Dirk Spengler, Ellen Kooijman, Herman L.M. van Roermund
   
2. Evaluating the planktic foraminiferal B/Ca proxy for application to deep time paleoceanographyLaura L. Haynes, Bärbel Hönisch, Kate Holland, Yair Rosenthal, Stephen M. Eggins
    
3. Consequences of glacial cycles for magmatism and carbon transport at mid-ocean ridgesNestor G. Cerpa, David W. Rees Jones, Richard F. Katz
    
4. Where does subduction initiate and cease? A global scale perspectiveMartina M. Ulvrova, Nicolas Coltice, Simon Williams, Paul J. Tackley
    
5. Astronomically forced climate evolution in a saline lake record of the middle Eocene to Oligocene, Jianghan Basin, ChinaChunju Huang, Linda Hinnov
   
6. Water controls the seasonal rhythm of rock glacier flow
   A. Cicoira, J. Beutel, J. Faillettaz, A. Vieli
   
   Geochimica et Cosmochimica Acta
   
7. The geologic history of Vesta inferred from combined 207Pb/206Pb and 40Ar/39Ar chronology of basaltic eucritesTsuyoshi Iizuka, Fred Jourdan, Akira Yamaguchi, Piers Koefoed, ... Yuri Amelin
8. Calculating 14C mean residence times of inorganic carbon derived from oxidation of organic carbon in groundwater using the principles of 87Sr/86Sr and cation ratio mixing
   Palaeogeography, Palaeoclimatology, Palaeoecology
9. Glacier extent and climate in the Maritime Alps during the Younger DryasMatteo Spagnolo, Adriano Ribolini
   
   Quaternary Science Reviews
   
10. The North American hydrologic cycle through the last deglaciationJuan M. Lora, Daniel E. Ibarra
    
11. The micromorphology of glaciolacustrine varve sediments and their use for reconstructing palaeoglaciological and palaeoenvironmental changeA.P. Palmer, J.M. Bendle, A. MacLeod, J. Rose, V.R. Thorndycraft
    
12. Downscaling Last Glacial Maximum climate over southern AfricaFrancois A. Engelbrecht, Curtis W. Marean, Richard M. Cowling, Christien J. Engelbrecht, ... Mark Difford
    
13. Central Mediterranean explosive volcanism and tephrochronology during the last 630 ka based on the sediment record from Lake Ohrid
    Niklas Leicher, Biagio Giaccio, Giovanni Zanchetta, Bernd Wagner, ... Emma L. Tomlinson
    
14. Ocean-atmosphere interconnections from the last interglacial to the early glacial: An integration of marine and cave records in the Iberian regionJudit Torner, Isabel Cacho, Ana Moreno, Francisco J. Sierro, ... Heather Stoll
    
15. A Mediterranean perspective on 10Be, sedimentation and climate around the Matuyama/Brunhes boundary: les liaisons dangereuses?Luca Capraro, Fabio Tateo, Patrizia Ferretti, Eliana Fornaciari, ... Xingjun Xie

New papers 2019/12/2-8 (Nature, Science, erc...)

Nature Communications

1.   Large Igneous Province thermogenic greenhouse gas flux could have initiated Paleocene-Eocene Thermal Maximum climate change

Stephen M. Jones, Murray Hoggett, Sarah E. Greene & Tom Dunkley Jones 

2.   Seawater softening of suture zones inhibits fracture propagation in Antarctic ice shelves

Bernd Kulessa, Adam D. Booth, Martin O’Leary, Daniel McGrath, Edward C. King, Adrian J. Luckman, Paul R. Holland, Daniela Jansen, Suzanne L. Bevan, Sarah S. Thompson

Nature Geoscience

3.   Great Oxidation and Lomagundi events linked by deep cycling and enhanced degassing of carbon

James Eguchi, Johnny Seales and Rajdeep Dasgupta

PNAS

4.   A diurnal carbon engine explains 13C-enriched carbonates without increasing the global production of oxygen

Emily C. Geymana, and Adam C. Maloofa

New Papers 2019/12/2 -12/8 (AGU, EGU, GSA)

Journal of Geophysical Research

1.         Water mass characteristics of the Antarctic margins and the production and seasonality of Dense Shelf Water

Aditya Narayanan Sarah T. Gille Matthew Mazloff K. Murali

Biogeosciences

2.    Effects of leaf length and development stage on the triple oxygen isotope signature of grass leaf water and phytoliths: insights for a proxy of continental atmospheric humidityAnne Alexandre, Elizabeth Webb, Amaelle Landais, Clément Piel, Sébastien Devidal, Corinne Sonzogni, Martine Couapel, Jean-Charles Mazur, Monique Pierre, Frédéric Prié, Christine Vallet-Coulomb, Clément Outrequin, and Jacques Roy

Geophysical Research Letters

3.        Early Holocene temperature oscillations exceed amplitude of observed and projected warming in Svalbard lakes

Willem G.M. van der Bilt William J. D`Andrea Johannes P. Werner Jostein Bakke

4.       How far north did the African Monsoon fringe expand during the African Humid Period? – Insights from Southwest Moroccan speleothems

Lijuan Sha Yassine Ait Brahim Jasper A. Wassenburg Jianjun Yin Matthew Peros Francisco W. Cruz Yanjun Cai Hanying Li Wenjing Du Haiwei Zhang R. Lawrence Edwards Hai Cheng

5.         Northern tropical Atlantic warming in El Niño decaying spring: Impacts of El Niño amplitude

Renguang Wu Zhuoqi He

6.    Antarctic Sea Ice Expansion, Driven by Internal Variability, in the Presence of Increasing Atmospheric CO2H.A. Singh L.M. Polvani P.J. Rasch

7.        Subtropical Pacific Ocean temperature fluctuations in the Common Era: Multidecadal variability and its relationship with Southwestern North American megadroughts
Nicholas A. O'Mara Anson H. Cheung Christopher S. Kelly Samantha Sandwick Timothy D. Herbert James M. Russell Jose Abella‐Gutiérrez Sylvia G. Dee Peter W. Swarzenski Juan Carlos Herguera

    

8.        Impact of iceberg calving on the retreat of Thwaites Glacier, West Antarctica over the next century with different calving laws and ocean thermal forcing

Hongju Yu, Eric Rignot, Helene Seroussi, Mathieu Morlighem, Youngmin Choi

Climate of the Past

9.         Extratropical cyclones over the North Atlantic and Western Europe during the Last Glacial Maximum and implications for proxy interpretation

Joaquim G. Pinto and Patrick Ludwig

10.    Rare Earth Elements in oyster shells: provenance discrimination and potential vital effects
Vincent Mouchi, Camille Godbillot, Vianney Forest, Alexey Ulianov, Franck Lartaud, Marc de Rafélis, Laurent Emmanuel, and Eric P. Verrecchia

11.    Assimilating monthly precipitation data in a paleoclimate data assimilation framework

Veronika Valler, Yuri Brugnara, Jörg Franke, and Stefan Brönnimann

12.   A first chronology for the East GReenland Ice–core Project (EGRIP) over the Holocene and last glacial termination

Seyedhamidreza Mojtabavi, Frank Wilhelms, Eliza Cook, Siwan Davies, Giulia Sinnl, Mathias Skov Jensen, Dorthe Dahl-Jensen, Anders Svensson, Bo Vinther, Sepp Kipfstuhl, Gwydion Jones, Nanna B. Karlsson, Sergio Henrique Faria, Vasileios Gkinis, Helle Kjær, Tobias Erhardt, Sarah M. P. Berben, Kerim H. Nisancioglu, Iben Koldtoft, and Sune Olander Rasmussen

Geophysical Research: Oceansno relevant 

Message from Benjamin

We received a message from Benjamin, the internship student from Universiti Teknologi PETRONAS, Malaysia.

My internship at the ACES started in July 2019 and ended in December 2019 and focused on the Paleo-environmental Reconstruction of the Malay Peninsula using Marine Sediments for the last 50,000 years. This project helped me to gain a deep understanding of radiocarbon dating using Accelerator Mass Spectrometry of several shell and coral samples brought from the East Coast of Malaysia. Through this project, I was able to grasp the many workings and fundamentals that surround Accelerator Mass Spectrometry and the practical and theoretical knowledge needed to utilize it to its fullest extent in radiocarbon dating. 

This internship has been one of the best periods of my life, especially the day-to-day research that was carried out in deepening my knowledge in the field of radiocarbon dating as well as the multitude of experiences that I have never been exposed to. One of the many highlights was the two-week excursion to the Tohoku and Mount-Fuji regions that not expanded my knowledge on the diversity of geology in Japan, but also helped me establish life-long connections with individuals from Japan, Australia and more. I hope that I may be able to one day continue my studies at the ACES or the University of Tokyo and explore more of what Japan has to offer. I would like to sincerely thank Yokoyama-sensei for giving me the opportunity to carry out my internship here and to everyone who has not only made this internship possible, but also a joy to carry out and hope to see everyone again in the near future! Thank You!! 

New Papers 2019 November 25 – December 01 (Elsevier)

Paleogeography, Paleoclimatology, Paleoecology

1.     Multi-proxy speleothem record of climate instability during the early last interglacial in southern Turkey

P.J. Rowe, L.B. Wickens, D. Sahy, A.D. Marca, E. Peckover, S. Noble, M. Özkul, M.O. Baykara, I.L. Millar, J.E. Andrews

2.     Environmental changes in the East Equatorial Pacific during the Mid Pleistocene Transition and implications for the Last Global Extinction of benthic foraminifera

Paula Diz, Irene Peñalver-Clavel, Iván Hernández-Almeida, Stefano M. Bernasconi

Global and Planetary Change

3.     Chronostratigraphic framework of the East China Sea since MIS 6 from geomagnetic paleointensity and environmental magnetic records

Zhaoxia Jiang, Chunsheng Jin, Zhongbo Wang, Qingsong Liu, Sanzhong Li, Zhengquan Yao

4.     Did North Atlantic cooling and freshening from 3.65–3.5 Ma preconditioned Northern Hemisphere ice sheet growth?

Cyrus Karas, Nabil Khélifi, André Bahr, B.D.A. Naafs, Dirk Nürnberg, Jens O. Herrle

Quaternary International

5.     New perspectives on movement of humans, animals, and materials in the South Central Andes from the Early Peopling to the Inca Empire (11,000 BC- AD 1540): A multidisciplinary approach

Francisca Santana-Sagredo, Mauricio Uribe

6.     ESR and U-Th dating results for Last Interglacial coral reef terraces at the northern coast of Cuba

Patrick Schielein, Christoph Burow, Jesus Pajon, Reinaldo Rojas Consuegra, Jian-xin Zhao, Gerhard Schellmann

Quaternary Science Reviews

7.     A review of evidence of glacially-induced faulting and seismic shaking in eastern Canada

Gregory R. Brooks, John Adams

8.     Southern Ocean link between changes in atmospheric CO2 levels and northern-hemisphere climate anomalies during the last two glacial periods

Julia Gottschalk, Luke C. Skinner, Samuel L. Jaccard, Laurie Menviel, Christoph Nehrbass-Ahles, Claire Waelbroeck

9.     Southern Ocean temperature records and ice-sheet models demonstrate rapid Antarctic ice sheet retreat under low atmospheric CO2 during Marine Isotope Stage 31

Beltran Catherine, Nicholas R. Golledge, Ohneiser Christian, Douglas E. Kowalewski, Sicre Marie-Alexandrine, Kimberly J. Hageman, Smith Robert, Gary S. Wilson, Mainié François