12/31/2014

2014/ 12/ 30 New papers (AGU, EGU, GSA)


Geochemistry, Geophysics, Geosystems
1. The Iceland Basin excursion: Age, duration, and excursion field geometry
  J. E. T. Channell

  DOI: 10.1002/2014GC005564

Global biogeochemical cycles
2. Net ecosystem production and organic carbon balance of U.S. east coast estuaries: A synthesis approach
Maria Herrmann, Raymond G. Najjar, W. Michael Kemp, Richard B. Alexander,
Elizabeth W. Boyer, Wei-Jun Cai, Peter C. Griffith, Kevin D. Kroeger,
S. Leigh McCallister, Richard A. Smith
DOI: 10.1002/2013GB004736
Keywords:
Coastal carbon cycle; Estuarine net ecosystem production; Estuarine net community production; Estuarine metabolism; Total organic carbon; Coastal carbon synthesis

Jouranl of geophysical research: Oceans
QinYan Liu, Dongxiao Wang, Xin Wang, Yeqiang Shu, Qiang Xie, Ju Chen
DOI: 10.1002/2014JC010429
KEY POINTS:
Basin mode in EP El Nino, while semibasin mode in CP El Niño
The SST oscillation periods are different in these two types of El Niño

Philip L. Woodworth, Miguel Á. Morales Maqueda, Vassil M. Roussenov, Richard G. Williams, Chris W. Hughes
DOI: 10.1002/2014JC010520
KEY POINTS:
MSL variability along the N American coast is highly coherent
This MSL variability is forced to a great extent by the wind
The MOC plays only a small part in this variability

Nikolay V. Koldunov, Nuno Serra, Armin Köhl, Detlef Stammer, Olivier Henry, Anny Cazenave, Pierre Prandi, Per Knudsen, Ole Baltazar Andersen, Yongqi Gao, et al
DOI: 10.1002/2014JC010170
KEY POINTS:
Model simulations are compared with sea level observations in the Arctic Ocean
The main patterns of SSH variability in the Arctic Ocean are assessed

Vinu K. Valsala, Mathew Koll Roxy, Karumuri Ashok, Raghu Murtugudde
DOI: 10.1002/2014JC010212
KEY POINTS:
Introduced a new EOF method on timetime domain of anomalies
Identified spatiotemporal locking of eqPac CO2 and pCO2
A multidecadal variability in eqPac pCO2 and CO2 fluxes

Climate of the past
7. Millennial meridional dynamics of the Indo-Pacific Warm Pool during the last termination
L. Lo, C.-C. Shen, K.-Y. Wei, G. S. Burr, H.-S. Mii, M.-T. Chen, S.-Y. Lee, and M.-C. Tsai
Clim. Past, 10, 2253-2261, 2014
www.clim-past.net/10/2253/2014/
doi:10.5194/cp-10-2253-2014

GRL
特になし
GSA
Paleoceanography
なし




12/23/2014

New Papers (2014/12/15-2013/12/21)

ELSEVIER
Chemical Geology
1. The source of Mesozoic granitoids in South China: Integrated geochemical constraints from the Taoshan batholith in the Nanling Range
Zi-Fu Zhao , Peng Gao , Yong-Fei Zheng
doi:10.1016/j.chemgeo.2014.11.028
Granitoid; Geochemistry; Source nature; Melting temperature; Restite melting

Earth and Planetary Science Letters
2. Reduced ventilation and enhanced magnitude of the deep Pacific carbon pool during the last glacial period
L. Skinner , I.N. McCave , L. Carter , S. Fallon , A.E. Scrivner , F. Primeau
radiocarbon; ocean ventilation; carbon cycling; palaeoceanography

3. Contribution of seasonal sub-Antarctic surface water variability to millennial-scale changes in atmospheric COover the last deglaciation and Marine Isotope Stage 3
Julia Gottschalk , Luke C. Skinner , Claire Waelbroeck
South Atlantic; planktonic foraminifera; stable oxygen and carbon isotopes; atmospheric CO2; last glacial period

4. Rock-magnetic proxies of wind intensity and dust since 51,200 cal BP from lacustrine sediments of Laguna Potrok Aike, southeastern Patagonia
Agathe Lisé-Pronovost , Guillaume St-Onge , Claudia Gogorza , Torsten Haberzettl , Guillaume Jouve , Pierre Francus , Christian Ohlendorf , Catalina Gebhardt , Bernd Zolitschka
rock magnetism; wind intensity; dust; lake sediment; PASADO; Southern Hemisphere westerly winds

Geochimica et Cosmochimica Acta
5. The geochemical fingerprint of microbial long-distance electron transport in the seafloor
Filip J.R. Meysman , Nils Risgaard-Petersen , Sairah Y. Malkin , Lars Peter Nielsen
Electrogenic sulfur oxidation; Marine sediments; long-distance electrontransport; Redox cycling; Cable bacteria

6. Behavior of Lithium isotopes in the Changjiang River system: Sources effects and response to weathering and erosion
Qi-Lian Wang , Benjamin Chetelat , Zhi-Qi Zhao , Hu Ding , Si-Liang Li , Bao-Li Wang , Jun Li , Xiao-Long Liu
Lithium isotopes; ChangjiangRiver; Weathering regimes; Sedimentary recycling

7. The chemical conditions of the late Archean Hamersley basin inferred from whole rock and pyrite geochemistry with Δ33S and δ34S isotope analyses
Daniel D. Gregory , Ross R. Large , Jacqueline A. Halpin , Jeffery A. Steadman , Arthur H. Hickman , Trevor R. Ireland , Peter Holden

Global and Planetary Change
8. The lost Adventure Archipelago (Sicilian Channel, Mediterranean Sea): Morpho-bathymetry and Late Quaternary palaeogeographic evolution
Dario Civile , Emanuele Lodolo , Massimo Zecchin , Zvi Ben-Avraham , Luca Baradello , Daniela Accettella , Andrea Cova , Mauro Caffau

Palaeogeography, Palaeoclimatology, Palaeoecology
9. Reconstructing climate change and ombrotrophic bog development during the last 4000 years in northern Poland using biotic proxies, stable isotopes and trait-based approach
Multi-proxy; High-resolution; Peatland; Trait-based paleoecology

10. Long- and short-term hydroclimatic variabilities in the Aptian Tethys: Clues from the orbital chronostratigraphy of evaporite-rich beds in the Apennine carbonate platform (Mt. Faito, southern Italy)
R. Graziano , A. Raspini
Aptian; Apennine carbonate platform; Evaporites; Astrochronology; Paleoclimatology; Platform to basin correlation

11. Seasonality variations in the Central Mediterranean during climate change events in the Late Holocene
Seasonality; Late Holocene; Central Mediterranean; Foraminiferal test chemistry

12. Local overprints on the global carbonate δ13C signal in Devonian–Carboniferous boundary successions of South China
Wenkun Qie , Jiangsi Liu , Jitao Chen , Xiangdong Wang , Horng-sheng Mii , Xionghua Zhang , Xing Huang , Le Yao , Thomas J. Algeo , Genming Luo
Carbon isotope; Carbon cycle; Hangenberg Event; Mass extinction; Eustasy

Quaternary Geochronology
13. Modelling dose rate to single grains of quartz in well-sorted sand samples: the dispersion arising from the presence of potassium feldspars and implications for single grain OSL dating
Guillaume Guérin , Mayank Jain , Kristina Thomsen , Andrew Murray , Norbert Mercier
Single grain OSL; dose rate distributions; age models; overdispersion; Geant4 simulations

14. OSL dating of fine and coarse quartz from a Palaeolithic sequence on the Bistrița Valley (Northeastern Romania)
O. Trandafir , A. Timar-Gabor , C. Schmidt , D. Veres , M. Anghelinu , U. Hambach , S. Simon
OSL dating; Radiocarbon dating; Quartz grain size; Romania

Quaternary Research
15. Directly dated MIS 3 lake-level record from Lake Manix, Mojave Desert, California, USA
Marith C. Reheis , David M. Miller , John P. McGeehin , Joanna R. Redwine , Charles G. Oviatt , Jordon Bright
Paleoclimate; Pluvial lake; Mojave Desert; Dansgaard–Oeschger cycles; Heinrich events

Quaternary Science Reviews
16. A Younger Dryas plateau icefield in the Monadhliath, Scotland, and implications for regional palaeoclimate
Clare M. Boston , Sven Lukas , Simon J. Carr
Plateau icefield; Younger Dryas; Scotland; Glacier reconstruction; Palaeoclimate

17. Climatic and morphological controls on diachronous postglacial lake and river valley evolution in the area of Last Glaciation, northern Poland
M. Błaszkiewicz , J.A. Piotrowski , A. Brauer , P. Gierszewski , J. Kordowski , M. Kramkowski , P. Lamparski , S. Lorenz , A.M. Noryśkiewicz , F. Ott , M. Słowiński , S. Tyszkowski
Fluvial processes; Lacustrine processes; River valley evolution; Lateglacial; Holocene

18. Spatial and temporal variations in meteoric 10Be inventories and long-term deposition rates, Colorado Front Range
William Ouimet , David Dethier , Paul Bierman , Cianna Wyshnytzky , Neil Shea , Dylan H. Rood
Meteoric 10Be; Cosmogenic isotopes; Fallout radionuclides; Geochronology; Geomorphology; Colorado Front Range

19. Deglacial weakening of the oceanic soft tissue pump: global constraints from sedimentary nitrogen isotopes and oxygenation proxies
Eric D. Galbraith , Samuel L. Jaccard
Carbon dioxide; Ice ages; Biological pump; Marine sediments; Dissolved oxygen; Nitrogen isotopes;Ocean circulation; Iron fertilization

20. Time-transgressive environmental shifts across Northern Europe at the onset of the Younger Dryas
Francesco Muschitiello , Barbara Wohlfarth
Northern Europe; Younger Dryas; Radiocarbon; Bayesian age-depth models

21. Landscape chronology and glacial history in Thule, northwest Greenland
Lee B. Corbett , Paul R. Bierman , G. Everett Lasher , Dylan H. Rood
Beryllium-10; Holocene; Cosmogenic nuclides; Deglaciation; Subglacial erosion

Quaternary International
22. Further investigations on ‘non-fading’ in K-Feldspar
M. Jain , J.P. Buylaert , K.J. Thomsen , A.S. Murray
Infra-red stimulated luminescence (IRSL); Time resolved IRSL (TR-IRSL); Pulsed IRSL; Post IR – IRSL;Retrospective dosimetry; Anomalous fading

23. Spatial variability of Late Pleistocene–Early Holocene soil formation and its relation to early human paleoecology in Northwest Mexico
Tamara Cruz-y-Cruz , Guadalupe Sánchez , Sergey Sedov , Alejando Terrazas-Mata , Elizabeth Solleiro-Rebolledo , Rosa Elena Tovar-Liceaga , John Carpenter
Sonora; Late Pleistocene; Red paleosols; Soil variability; Paleoenvironment; Early settlement

24. A late Quaternary record of vegetation and climate change from Hazards Lagoon, eastern Tasmania
Lydia Mackenzie , Patrick Moss
Last Glacial Maximum; Holocene; Pollen; Vegetation; Tasmania

25. A 225-year long drought reconstruction for east Xinjiang based on Siberia larch (Larix sibirica) tree-ring widths: Reveals the recent dry trend of the eastern end of Tien Shan
Feng Chen , Yu-jiang Yuan , Shu-long Yu , Tong-wen Zhang , Hua-ming Shang , Rui-bo Zhang , Li Qin , Zi-ang Fan
Larix sibirica; Tree rings; Standardised precipitation-evapotranspiration index (SPEI); East Xinjiang

26. Otoliths as a proxy for seasonality: The case of Micropogonias furnieri from the northern coast of San Matías Gulf, Río Negro, Patagonia, Argentina
Federico L. Scartascini , Margarita Sáez , Alejandra V. Volpedo
Otoliths; Seasonality; San Matías Gulf; Argentina

Marine Geology
Non-updated

12/22/2014

茨城県自然博物館に行ってきました

皆様

坂下です。

2014年12月20日土曜日に
茨城県自然博物館の企画展のオープンセレモニーに参加してきました。

横山研からの参加者は沢田さん一家、関さんと坂下の5人です。


今回の企画展のタイトルは
「マンモスが渡った橋 氷河期の動物大移動」です!!

この企画展におきまして
横山研からは気候変動ブースに必要なサンプルをいくつかお貸ししました。

企画展は来年2015年6月7日日曜日まで公開です。

以下写真になります。

くす玉割り

最初はマンモスがお出迎え

ほとんどが横山研提供のブース
木の年輪、鍾乳石、有孔虫、迷子石、サンゴなどが展示されています

他にもたくさんの展示がありますので興味をお持ちになった方はぜひ!!

12/16/2014

New Papers (Nature, Science, etc...) 2014/12/08~2014/12/14

Nature
1. Isotopic constraints on marine and terrestrial N2O emissions during the last deglaciation
Adrian Schilt, Edward J. Brook, Thomas K. Bauska, Daniel Baggenstos, Hubertus Fischer, Fortunat Joos, Vasilii V. Petrenko, Hinrich Schaefer, Jochen Schmitt, Jeffrey P. Severinghaus, Renato Spahni       & Thomas F. Stocker
AffiliationsContributionsCorresponding author
Nature 516, 234–237 (11 December 2014) doi:10.1038/nature13971

Science
2. Scratching the surface of martian habitability
Pamela G. Conrad
Science 12 December 2014: Vol. 346 no. 6215 pp. 1288-1289
DOI: 10.1126/science.1259943

PNAS
3. Impact of Antarctic mixed-phase clouds on climate
R. Paul Lawson and Andrew Gettelman
doi: 10.1073/pnas.1418197111

4. Fire responses to postglacial climate change and human impact in northern Patagonia (41–43°S)
Virginia Iglesias and Cathy Whitlock
doi: 10.1073/pnas.1410443111

5. Direct measurements of methane emissions from abandoned oil and gas wells in Pennsylvania
Mary Kang, Cynthia M. Kanno, Matthew C. Reid, Xin Zhang, Denise L. Mauzerall, Michael A. Celia, Yuheng Chen, and Tullis C. Onstott
doi: 10.1073/pnas.1408315111

Nature Communications
6. Early warning signals of Atlantic Meridional Overturning Circulation collapse in a fully coupled climate model
Chris A. Boulton,  Lesley C. Allison  & Timothy M. Lenton
AffiliationsContributionsCorresponding author
Nature Communications 5, Article number: 5752 doi:10.1038/ncomms6752

7. Geochemistry of silicate-rich rocks can curtail spreading of carbon dioxide in subsurface aquifers
S. S. S. Cardoso & J. T. H. Andres
AffiliationsContributionsCorresponding author
Nature Communications 5, Article number: 5743 doi:10.1038/ncomms6743

Nature Geoscience
8. Deep water cycle: Mantle hydration
Masayuki Nishi
Nature Geoscience (2014) doi:10.1038/ngeo2326

9. Net regional methane sink in High Arctic soils of northeast Greenland
Christian Juncher Jørgensen, Katrine Maria Lund Johansen, Andreas Westergaard-Nielsen & Bo Elberling
Nature Geoscience (2014) doi:10.1038/ngeo2305

10. Sand dune patterns on Titan controlled by long-term climate cycles
Ryan C. Ewing, Alex G. Hayes & Antoine Lucas
Nature Geoscience (2014) doi:10.1038/ngeo2323

Nature Climate Change
11. Dramatically increasing chance of extremely hot summers since the 2003 European heatwave
Nikolaos Christidis, Gareth S. Jones & Peter A. Stott
Nature Climate Change (2014) doi:10.1038/nclimate2468

Scientific Reports
12. How Unique was Hurricane Sandy? Sedimentary Reconstructions of Extreme Flooding from New York Harbor
Christine M. Brandon, Jonathan D. Woodruff, Jeffrey P. Donnelly & Richard M. Sullivan
Scientific Reports 4, Article number: 7366 doi:10.1038/srep07366

13. Intensified Diapycnal Mixing in the Midlatitude Western Boundary Currents
Zhao Jing & Lixin Wu
Scientific Reports 4, Article number: 7412 doi:10.1038/srep07412

Geology

None