12/26/2010

新着論文紹介(2010/12/21)

☆Proceedings of the National Academy of Sciences☆ 2010/12/21

Synchronous environmental and cultural change in the prehistory of the northeastern United States
Samuel E. Munoz, Konrad Gajewski, and Matthew C. Peros
PNAS 2010 107 (51) 22008-22013; published ahead of print December 6, 2010, doi:10.1073/pnas.1005764107
→北東アメリカでの考古14C年代データベースと古生態・古気候復元から、文化の興隆が気候変動と同調していたことを示した(11.6, 8.2, 5.4, and 3.0 kyr BP)。


☆Geochemistry, Geophysics, Geosystems☆ 2010/12/14-12/20

Major changes in glacial and Holocene terrestrial temperatures and sources of organic carbon recorded in the Amazon fan by tetraether lipids,
Bendle, J. A., J. W. H. Weijers, M. A. Maslin, J. S. Sinninghe Damsté, S. Schouten, E. C. Hopmans, C. S. Boot, and R. D. Pancost (2010)
Geochem. Geophys. Geosyst., 11, Q12007, doi:10.1029/2010GC003308
→アマゾン盆地における過去37kyrの気温を、ODP942のコアのbranched GDGTs(土壌バクテリアのバイオマーカー)から復元。LGMでは現在よりも5℃寒かったらしい。


☆JGR-Oceans☆ 2010/12/14-12/20

Mg/Ca ratios in coralline algae record northwest Atlantic temperature variations and North Atlantic Oscillation relationships
Gamboa, G., J. Halfar, S. Hetzinger, W. Adey, T. Zack, B. Kunz, and D. E. Jacob (2010)
J. Geophys. Res., 115, C12044, doi:10.1029/2010JC006262.
→過去116年間のNAOを復元するため、北大西洋ニューファンドランドのClathromorphum compactumのMg/Ca比を測定。この藻類は、サンゴのように1年ごとの縞を100年以上形成する。Mg/Caは水温と正相関。

Response of Norwegian Sea temperature to solar forcing since 1000 A.D.
Sejrup, H. P., S. J. Lehman, H. Haflidason, D. Noone, R. Muscheler, I. M. Berstad, and J. T. Andrews (2010)
J. Geophys. Res., 115, C12034, doi:10.1029/2010JC006264.
→過去1000年のノルウェーの水温を酸素同位体組成から復元すると、太陽活動と相関していたらしい。


☆Paleoceanography☆ 2010/12/14-12/20

Contrasting multiproxy reconstructions of surface ocean hydrography in the Agulhas Corridor and implications for the Agulhas Leakage during the last 345,000 years
Martínez-Méndez, G., R. Zahn, I. R. Hall, F. J. C. Peeters, L. D. Pena, I. Cacho, and C. Negre (2010)
Paleoceanography, 25, PA4227, doi:10.1029/2009PA001879.


☆Reviews of Geophysics☆

SOLAR INFLUENCES ON CLIMATE
Gray, L. J., J. Beer, M. Geller, J. D. Haigh, M. Lockwood, K. Matthes, U. Cubasch, D. Fleitmann, G. Harrison, L. Hood, J. Luterbacher, G. A. Meehl, D. Shindell, B. van Geel, and W. White (2010)
Rev. Geophys., 48, RG4001, doi:10.1029/2009RG000282
→太陽と気候の関係のレビュー。わりと紫外線寄りの論調。


☆Earth and Planetary Science Letters☆ 3 January 2011

Pliocene climate change of the Southwest Pacific and the impact of ocean gateways
Cyrus Karas, Dirk Nürnberg, Ralf Tiedemann, Dieter Garbe-Schönberg
Earth and Planetary Science Letters, Volume 301, Issues 1-2, 3 January 2011, Pages 117-124
→DSDP Site590B(オーストラリアの東沖)の浮遊性有孔虫の酸素同位体組成、Mg/Ca比から、Plioceneの海水温と塩分を復元。中央アメリカなどの地峡形成による海流変化と絡めて議論。

Transport and exchange of U-series nuclides between suspended material, dissolved load and colloids in rivers draining basaltic terrains
Philip A.E. Pogge von Strandmann, Kevin W. Burton, Don Porcelli, Rachael H. James, Peter van Calsteren, Sigurður R. Gislason
Earth and Planetary Science Letters, Volume 301, Issues 1-2, 3 January 2011, Pages 125-136
→玄武岩を流れる川の中の様々な成分中のウラン系列核種。化学風化が大きく影響しているらしい。

Decoupled warming and monsoon precipitation in East Asia over the last deglaciation
Francien Peterse, Maarten A. Prins, Christiaan J. Beets, Simon R. Troelstra, Hongbo Zheng, Zhaoyan Gu, Stefan Schouten, Jaap S. Sinninghe Damsté
Earth and Planetary Science Letters, Volume 301, Issues 1-2, 3 January 2011, Pages 256-264
→最終退氷期の東アジアの気温を、中国レスのbranched GDGTs(土壌バクテリアのバイオマーカー)から復元。東アジア夏季モンスーンの強化よりも、気温の上昇が3千年ほど早く、変動のタイミングは一致していない。

Empirical relationship between leaf wax n-alkane δD and altitude in the Wuyi, Shennongjia and Tianshan Mountains, China: Implications for paleoaltimetry
Pan Luo, Ping'an Peng, Gerd Gleixner, Zhuo Zheng, Zhonghe Pang, Zhongli Ding
Earth and Planetary Science Letters, Volume 301, Issues 1-2, 3 January 2011, Pages 285-296
→中国の山で、葉ワックスのn-アルカンの水素同位体組成と高度の関係を調べて、古高度推定に使えるかどうか議論。

Geomagnetic field intensity: How high can it get? How fast can it change? Constraints from Iron Age copper slag
Ron Shaar, Erez Ben-Yosef, Hagai Ron, Lisa Tauxe, Amotz Agnon, Ronit Kessel
Earth and Planetary Science Letters, Volume 301, Issues 1-2, 3 January 2011, Pages 297-306
→紀元前11-9世紀における地磁気強度変動を、考古試料から復元。地磁気強度が強まるスパイクの振幅と時間スケールに制限。

Sampling strategy and climatic implications of tree-ring stable isotopes on the southeast Tibetan Plateau
Chunming Shi, Valérie Masson-Delmotte, Camille Risi, Thomas Eglin, Michel Stievenard, Monique Pierre, Xiaochun Wang, Jing Gao, François-Marie Bréon, Qi-Bin Zhang, Valérie Daux
Earth and Planetary Science Letters, Volume 301, Issues 1-2, 3 January 2011, Pages 307-316
→チベット高原で、20世紀後半の樹木年輪酸素同位体組成、炭素同位体組成を分析。炭素は気候との相関はイマイチだけど、酸素は良さそう。

Radiocarbon and 230Th data reveal rapid redistribution and temporal changes in sediment focussing at a North Atlantic drift
Gesine Mollenhauer, Jerry F. McManus, Thomas Wagner, I. Nick McCave, Timothy I. Eglinton
Earth and Planetary Science Letters, Volume 301, Issues 1-2, 3 January 2011, Pages 373-381
→大西洋堆積物の14C年代(浮遊性有孔虫、アルケノン、TOC)と230Thから、堆積物の側方移動がプロキシに与える影響を議論。

Stability of massive ground ice bodies in University Valley, McMurdo Dry Valleys of Antarctica: Using stable O–H isotope as tracers of sublimation in hyper-arid regions
Denis Lacelle, Alfonso F. Davila, Wayne H. Pollard, Dale Andersen, Jennifer Heldmann, Margarita Marinova, Christopher P. McKay
Earth and Planetary Science Letters, Volume 301, Issues 1-2, 3 January 2011, Pages 403-411
→南極のMcMurdo Dry Valleysで、酸素・水素同位体組成から氷の安定性を調べた。


☆Geochimica et Cosmochimica Acta☆ 15 January 2011

Carbon mass-balance modelling and carbon isotope exchange processes in dynamic caves
Silvia Frisia, Ian J. Fairchild, Jens Fohlmeister, Renza Miorandi, Christoph Spötl, Andrea Borsato
Geochimica et Cosmochimica Acta, Volume 75, Issue 2, 15 January 2011, Pages 380-400
→鍾乳石の炭素同位体組成の規定要因を探るため、イタリアでの5年間の観測とマスバランスモデル。水理学や土壌プロセスから単純に解釈することはできなさそうらしい。

Controls on calcium isotope fractionation in cultured planktic foraminifera, Globigerinoides ruber and Globigerinella siphonifera
B. Kısakürek, A. Eisenhauer, F. Böhm, E.C. Hathorne, J. Erez
Geochimica et Cosmochimica Acta, Volume 75, Issue 2, 15 January 2011, Pages 427-443
→2種の浮遊性有孔虫(Globigerinoides ruberと Globigerinella siphonifera)を、水温・塩分・pHを制御して飼育し、Ca同位体とSr/Ca比を測定。どちらも殻形成速度が主に効いているらしい。

Interindividual variability and ontogenetic effects on Mg and Sr incorporation in the planktonic foraminifer Globigerinoides sacculifer
Adriana Dueñas-Bohórquez, Régine Elisabeth da Rocha, Azumi Kuroyanagi, Lennart J. de Nooijer, Jelle Bijma, Gert-Jan Reichart
Geochimica et Cosmochimica Acta, Volume 75, Issue 2, 15 January 2011, Pages 520-532
→浮遊性有孔虫(Globigerinoides sacculifer)の飼育実験で、Mg/Ca比とSr/Ca比に与える影響を調べた。個体発生のステージがMg/Caに影響するらしい。


☆Quaternary Science Reviews☆ December 2010

Deep ice cores: the need for going back in time
Jean Jouzel, Valérie Masson-Delmotte
Quaternary Science Reviews, Volume 29, Issues 27-28, December 2010, Pages 3683-3689
→1.5Maに達する古い深いアイスコアを採取して、Mid-Pleistocene transition (MPT) の理解を進めようという話。

Relative sea-level change in and around the Younger Dryas inferred from late Quaternary incised-valley fills along the Japan Sea
Susumu Tanabe, Toshimichi Nakanishi, Satoshi Yasui
Quaternary Science Reviews, Volume 29, Issues 27-28, December 2010, Pages 3956-3971

☆Quaternary International☆ 1 January 2011

特集:Holocene Lake Records: Patterns, Impacts, Causes And Societal Response - Selected Papers from the 3rd LIMPACS Conference, Chandigarh, India
→完新世の湖堆積物による古気候復元。


☆Quaternary Geochronology☆ February 2011

A new approach to reconstructing sea levels in Antarctica using optically stimulated luminescence of cobble surfaces
Alexander R. Simms, Regina DeWitt, Peter Kouremenos, Ann Marie Drewry
Quaternary Geochronology, Volume 6, Issue 1, February 2011, Pages 50-60


☆Palaeogeography, Palaeoclimatology, Palaeoecology☆ 15 December 2010

Mid-Holocene regional reorganization of climate variability: Analyses of proxy data in the frequency domain
K.W. Wirtz, G. Lohmann, K. Bernhardt, C. Lemmen
Palaeogeography, Palaeoclimatology, Palaeoecology, Volume 298, Issues 3-4, 15 December 2010, Pages 189-200


担当: 山口保彦(D1)