新着論文紹介（2009/11/04）

☆Geophysical Research Letters☆

Extratropical forcing of Sahel aridity during Heinrich stadials
Niedermeyer, E. M., M. Prange, S. Mulitza, G. Mollenhauer, E. Schefuß, and M. Schulz (2009), Geophys. Res. Lett., 36, L20707, doi:10.1029/2009GL039687.
→セネガル沖堆積物のアルケノン古水温計・有孔虫d13Cから、過去44kyrの海洋環境・サヘル干ばつを復元。サヘルの干ばつのトリガーは、熱帯大西洋ではなく、中高緯度の大西洋らしい。

Global surface cooling: The atmospheric fast feedback response to a collapse of the thermohaline circulation
Laurian, A., S. S. Drijfhout, W. Hazeleger, and R. van Dorland (2009), Geophys. Res. Lett., 36, L20708, doi:10.1029/2009GL040938.
→熱塩循環の停止が気候に与える影響を、一次元放射対流モデルで計算。水蒸気量が減るのが、寒冷化の主要なフィードバックらしい。

Anthropogenic forcing dominates sea level rise since 1850
Jevrejeva, S., A. Grinsted, and J. C. Moore (2009), Geophys. Res. Lett., 36, L20706, doi:10.1029/2009GL040216.
→遅延応答統計モデルを用いて、過去1000年間の海水準変動の原因を推定。AD1800までは、自然の強制力（火山＋太陽活動）が主な原因だが、過去200年間は人為起源の強制力が主。

A new perspective on warming of the global oceans
Palmer, M. D., S. A. Good, K. Haines, N. A. Rayner, and P. A. Stott (2009), Geophys. Res. Lett., 36, L20709, doi:10.1029/2009GL039491.
→気候の内部変動は、海洋表層水温に大きく影響を与えるため、海洋温暖化の原因として自然起源と人為起源を分けるのに問題があったが、内部変動起源の海洋温暖化を除く手法を開発。

A continuous high-resolution dust record for the reconstruction of wind systems in central Europe (Eifel, Western Germany) over the past 133 ka
Seelos, K., F. Sirocko, and S. Dietrich (2009), Geophys. Res. Lett., 36, L20712, doi:10.1029/2009GL039716.


☆JGR-Atmosphere☆

Improving ice core interpretation using in situ and reanalysis data
Thomas, E. R., and T. J. Bracegirdle (2009), J. Geophys. Res., 114, D20116, doi:10.1029/2009JD012263.
→南西南極半島で採取された氷床コアのデータ解釈のため、氷床コアプロキシと観測気象データ・再解析気象データとを比較。

Atmospheric soluble dust records from a Tibetan ice core: Possible climate proxies and teleconnection with the Pacific Decadal Oscillation
Grigholm, B., P. A. Mayewski, S. Kang, Y. Zhang, S. Kaspari, S. B. Sneed, and Q. Zhang (2009), J. Geophys. Res., 114, D20118, doi:10.1029/2008JD011242.
→チベット高原のアイスコアを新しく採取し、酸素同位体、主要イオン、放射性核種を、AD1935-2005の70年間分分析。ダスト量が、PDOと関係？


☆JGR-Solid Earth☆

Localization of Quaternary slip rates in an active rift in 105 years: An example from central Greece constrained by 234U-230Th coral dates from uplifted paleoshorelines
Roberts, G. P., S. L. Houghton, C. Underwood, I. Papanikolaou, P. A. Cowie, P. van Calsteren, T. Wigley, F. J. Cooper, and J. M. McArthur (2009), J. Geophys. Res., 114, B10406, doi:10.1029/2008JB005818.


☆Paleoceanography☆

Middle-late Pleistocene deep water circulation in the southwest subtropical Pacific
Russon, T., M. Elliot, C. Kissel, G. Cabioch, P. De Deckker, and T. Corrège (2009), Paleoceanography, 24, PA4205, doi:10.1029/2009PA001755.
→ニューカレドニアトラフの堆積物コアの底生有孔虫d13Cから、中期－後期Pleistoceneにおける南西亜熱帯太平洋の水塊混合レジームを復元。氷期の南大洋の炭素吸収量を減らしていた？

Environmental versus biomineralization controls on the intratest variation in the trace element composition of the planktonic foraminifera G. inflata and G. scitula
Hathorne, E. C., R. H. James, and R. S. Lampitt (2009), Paleoceanography, 24, PA4204, doi:10.1029/2009PA001742.
→北大西洋の深海3000mで堆積物トラップで浮遊性有孔虫を採取し、Mg/Ca, Li/Ca, B/Ca, Mn/Ca, Ba/Caなど微量元素組成の殻内分布をLA-ICP/MSなどで調べた。


☆Earth and Planetary Science Letters☆ 287(3-4) 15 October

Cosmogenic 26Al in the atmosphere and the prospect of a 26Al/10Be chronometer to date old ice
Matthias Auer, Dietmar Wagenbach, Eva Maria Wild, Anton Wallner, Alfred Priller, Heinrich Miller, Clemens Schlosser, Walter Kutschera
Earth and Planetary Science Letters, Volume 287, Issues 3-4, Pages 453-462

Initial effects of oceanic warming on a coupled ocean–ice shelf–ice stream system
Ryan T. Walker, Todd K. Dupont, David M. Holland, Byron R. Parizek, Richard B. Alley
Earth and Planetary Science Letters, Volume 287, Issues 3-4, Pages 483-487

Geomagnetic intensity spike recorded in high resolution slag deposit in Southern Jordan
Erez Ben-Yosef, Lisa Tauxe, Thomas E. Levy, Ron Shaar, Hagai Ron, Mohammad Najjar
Earth and Planetary Science Letters, Volume 287, Issues 3-4, Pages 529-539


☆Geochimica et Cosmochimica Acta☆ 73(21) 15th Nov, 1st Dec 2009

Fractionation of oxygen and hydrogen isotopes in evaporating water
Boaz Luz, Eugeni Barkan, Ruth Yam, Aldo Shemesh
Geochimica et Cosmochimica Acta, Volume 73, Issue 22, Pages 6697-6703

Millennial/centennial-scale thermocline ventilation changes in the Indian Ocean as reflected by aragonite preservation and geochemical variations in Arabian Sea sediments
Philipp Böning, Edouard Bard
Geochimica et Cosmochimica Acta, Volume 73, Issue 22, Pages 6771-6788

Controls on the isotopic composition of surface water and precipitation in the Northern Andes, Colombian Eastern Cordillera
Joel E. Saylor, Andrés Mora, Brian K. Horton, Junsheng Nie
Geochimica et Cosmochimica Acta, Volume 73, Issue 23, Pages 6999-7018

Equilibrium 2H/1H fractionations in organic molecules: I. Experimental calibration of ab initio calculations
Ying Wang, Alex L. Sessions, Robert J. Nielsen, William A. Goddard III
Geochimica et Cosmochimica Acta, Volume 73, Issue 23, Pages 7060-7075

Equilibrium 2H/1H fractionations in organic molecules. II: Linear alkanes, alkenes, ketones, carboxylic acids, esters, alcohols and ethers
Ying Wang, Alex L. Sessions, Robert J. Nielsen, William A. Goddard III
Geochimica et Cosmochimica Acta, Volume 73, Issue 23, Pages 7076-7086


☆Chemical Geology☆ 268(3-4) 30 Nov 2009

Environmental analysis of paleoceanographic systems based on molybdenum–uranium covariation
T.J. Algeo, N. Tribovillard
Chemical Geology, Volume 268, Issues 3-4, Pages 211-225

Deglacial variations of Sr and 87Sr/86Sr ratio recorded by a stalagmite from Central China and their association with past climate and environment
Houyun Zhou, Yue-xing Feng, Jian-xin Zhao, Chuan-Chou Shen, Chen-Feng You, Yin Lin
Chemical Geology, Volume 268, Issues 3-4, Pages 233-247


☆Organic Geochemistry☆ 40(12) Dec 2009

Effects of long term oxic degradation on the , TEX86 and BIT organic proxies
Carme Huguet, Jung-Hyun Kim, Gert J. de Lange, Jaap S. Sinninghe Damsté, Stefan Schouten
Organic Geochemistry, Volume 40, Issue 12, Pages 1188-1194

担当：山口保彦（M2）