新着論文紹介 (AGU etc) 20120619

☆AGU★ (11-17 June 2012)

○G3

特になし

○GRL

Stable isotopes in global precipitation: A unified interpretation based on atmospheric moisture residence time

Aggarwal, P. K., O. A. Alduchov, K. O. Froehlich, L. J. Araguas-Araguas, N. C. Sturchio, and N. Kurita

降水のd18Oを理解するための新しい枠組みについて。従来のRayleigh蒸散を利用した方法（amount effect）ではなく、大気中の水蒸気の滞留時間を用いている。

Delayed deglaciation or extreme Arctic conditions 21-16 cal. kyr at southeastern Laurentide Ice Sheet margin?

Peteet, D. M., M. Beh, C. Orr, D. Kurdyla, J. Nichols, and T. Guilderson

ローレンタイド氷床の南東部の後退のタイミングについて。数多くの湖や沼から得られた堆積物中の化石の14Cから年代を決定したところ、後退は16ka頃から始まっており、従来の28-21kaに比べてはるかに‘若い’年代が得られた。

Biomass burning as a potential source for atmospheric ice nuclei: Western wildfires and prescribed burns

Prenni, A. J., P. J. DeMott, A. P. Sullivan, R. C. Sullivan, S. M. Kreidenweis, and D. C. Rogers

アメリカ西部の大気観測から、燃焼由来のススの冷たい雲（氷）の凝結核としての能力について議論。森林火災由来のススは氷の凝結核として大きな役割を負っていると考えられる。

○JGR-Oceans

Mapping phytoplankton iron utilization: Insights into Southern Ocean supply mechanisms

Boyd, P. W., K. R. Arrigo, R. Strzepek, and G. L. van Dijken

リモートセンシングで南大洋の鉄利用効率を定量化。パタゴニア砂漠起源の塵が多く供給される海域ほど利用効率は高く、逆に懸濁粒子が多い海域で低かった。また従来考えられていたほど南大洋の鉄利用効率は高くない可能性がある。

Statistical evidence for the natural variation of the central Pacific El Niño

Kim, J.-S., K.-Y. Kim, and S.-W. Yeh

近年太平洋のエルニーニョは中部の方が東部よりも「頻繁に」「強く」起きているらしい。２つのモードが関与しており、1990年以降の２つのモードの位相の一致がこの現象を説明できるかもしれない。モデルシミュレーションでも再現できたが、これが自然変動なのか人為起源の気候変動かは判別困難であった。

○Paleoceanography

Modeling evidences for global warming, Arctic seawater freshening, and sluggish oceanic circulation during the Early Toarcian anoxic event

Dera, G., and Y. Donnadieu

☆EGU★

○Climate of the Past

The Aptian evaporites of the South Atlantic: a climatic paradox?

A.-C. Chaboureau, Y. Donnadieu, P. Sepulchre, C. Robin, F. Guillocheau, and S. Rohais

○Biogeosciences

特になし

☆GSA★

○GSA Bulletin

今回は発行なし

新着論文 (Nature, Science, etc...)

新着論文紹介　120612

Natute Volume 486 Number 7401 pp5-152

[Editorial]

1.     Back to Earth

doi:10.1038/486005a

→今月リオデジャネイロで開かれる地球サミットに関する内容．

[Research Highlights]

2.     Greenland glacier map

doi:10.1038/486009c

→ice flow in Greenland for the International Polar Year 2008–2009のレビュー．

[News in Focus]

3.     President prunes forest reforms

Jeff Tollefson

→ブラジルのアマゾンの環境に関して．

[Features]

4.     Rio report card

Jeff Tollefson & Natasha Gilbert

doi:10.1038/486020a

[News & Reviews]

5.     A dash of deep nebula on the rocks

Chris J. Ballentine

doi:10.1038/486040a

→Early differentiation and volatile accretion recorded in deep-mantle neon and xenonのレビュー．

[Letters]

6.     Ultraviolet-radiation-induced methane emissions from meteorites and the Martian atmosphere

Frank Keppler, Ivan Vigano, Andy McLeod, Ulrich Ott, Marion Früchtl & Thomas Röckmann

doi:10.1038/nature11203

→火星大気中のメタンの生成起源についての論文．隕石中の有機物が紫外線照射を受けることでメタンが生成される．これによって火星大気のメタン混合比が説明できる．

7.     Late Miocene decoupling of oceanic warmth and atmospheric carbon dioxide forcing

Jonathan P. LaRiviere, A. Christina Ravelo, Allison Crimmins, Petra S. Dekens, Heather L. Ford,Mitch Lyle & Michael W. Wara

doi:10.1038/nature11200

→海洋の温暖化は二酸化炭素濃度が低かった約12～5 Myr前の期間を通して続いていたことが分かった．また、西太平洋赤道域から得られた新しい安定同位体の測定結果から、約13 Myr前以降に太平洋赤道域における水温躍層が長期的に浅くなっていたことが分かった．

8.     Early differentiation and volatile accretion recorded in deep-mantle neon and xenon

Sujoy Mukhopadhyay

doi:10.1038/nature11141

→アイスランドの岩から得られた希ガス同位体分析の結果から、上部マントルはこれまで、また現在でも、より深部のマントル供給源から気体を供給されたことがないことがわかった．

Science VOL 336, ISSUE 6086, PAGES 1197-1352

[News & Analysis]

9.     Oil Spill Researchers Lose Fight to Protect Documents

Eli Kintisch

DOI: 10.1126/science.336.6086.1219

[Letters]

10.   Climate's Role in Polar Bear Past

Kurt E. Galbreath, Joseph A. Cook, and Eric P. HobergDOI:10.1126/science.336.6086.1230-a

11.   Water Cycle Varies over Land and Sea

Michael L. Roderick, Fubao Sun, and Graham D. Farquhar

[Perspectives]

12.   Dancing to the Tune of the Glacial Cycles

Naoyuki Kurita

DOI: 10.1126/science.1223527

[Reports]

13.   Interglacial Hydroclimate in the Tropical West Pacific Through the Late Pleistocene

A. N. Meckler, M. O. Clarkson, K. M. Cobb, H. Sodemann, and J. F. Adkins

DOI:10.1126/science.1218340

→石筍を使って熱帯域の西大洋の更新生の環境を復元．4つの間氷期ではほぼ同じ降水量だが、二酸化炭素濃度・高緯度の気温は異なっていた．一方、氷期では熱帯域の西大洋の乾燥化と北の高緯度の寒冷化が同期していた．

Proceedings of the National Academy of Sciences June 5, 2012 u vol. 109 u no. 23

14.   Sulfur isotope variability of oceanic DMSP generation and its contributions to marine biogenic sulfur emissions

Harry Oduro, Kathryn L. Van Alstyne, and James Farquhar

doi:10.1073/pnas.1117691109

Nature Geoscience

Geology

今週は新着なし

新着論文紹介 This Week’s New Papers (2012/6/12) Elsevier

☆Chemical Geology☆

Volumes 314–317, Pages 1-112 (7 July 2012)

1.    Mg/Ca and Sr/Ca of ostracod valves from living species of Lake Geneva

Laurent Decrouy, Torsten Walter Vennemann, Daniel Ariztegui

Chemical Geology, Volumes 314–317, 7 July 2012, Pages 45–56

→スイスのGeneva湖で、現世のostracod（貝形虫）15種の殻のMg/Ca、Sr/Caを、水温や湖化学組成（酸素・炭素同位体、微量元素）と比較。種によってMgやSrの取り込まれ方は異なる。Geneva湖では古水温計としては使えなさそう。

☆Earth and Planetary Science Letters☆

Volumes 331–332, Pages 1-370 (15 May 2012)

2.    Quantifying Holocene lithospheric subsidence rates underneath the Mississippi Delta

Shi-Yong Yu, Torbjörn E. Törnqvist, Ping Hu

Earth and Planetary Science Letters, Volumes 331–332, 15 May 2012, Pages 21–30

→ミシシッピデルタの完新世の相対的海水準変動を推定するため、地盤沈降速度をデルタの塩性湿地堆積物の14C年代測定から推定。

3.    Mid- to late Holocene changes in tropical Atlantic temperature seasonality and interannual to multidecadal variability documented in southern Caribbean corals

Cyril Giry, Thomas Felis, Martin Kölling, Denis Scholz, Wei Wei, Gerrit Lohmann, Sander Scheffers

Earth and Planetary Science Letters, Volumes 331–332, 15 May 2012, Pages 187–200

→カリブ海南部の化石サンゴ（Diploria strigosa）年輪のSr/Ca比から、6.2kaの熱帯大西洋の水温を復元。季節性が大きかったらしく、気候モデルとも整合的？

4.    East African mid-Holocene wet–dry transition recorded in palaeo-shorelines of Lake Turkana, northern Kenya Rift

Yannick Garcin, Daniel Melnick, Manfred R. Strecker, Daniel Olago, Jean-Jacques Tiercelin

Earth and Planetary Science Letters, Volumes 331–332, 15 May 2012, Pages 322–334

→ケニアのTurkana湖の完新世の水位変動を復元して、水循環変動を議論。中期完新世に干ばつが発生して、当時の人類にも影響した？

5.    Steady rifting in northern Kenya inferred from deformed Holocene lake shorelines of the Suguta and Turkana basins

Daniel Melnick, Yannick Garcin, Javier Quinteros, Manfred R. Strecker, Daniel Olago, Jean-Jacques Tiercelin

Earth and Planetary Science Letters, Volumes 331–332, 15 May 2012, Pages 335–346

→上記の研究とセットで、完新世のアフリカ東部のテクトニクス（リフトの拡大速度）を議論。

6.    The Southwest Pacific during the Pliocene: A reply to Dickens and Backman, 2011

Cyrus Karas, Dirk Nürnberg, Ralf Tiedemann

Earth and Planetary Science Letters, Volumes 331–332, 15 May 2012, Pages 360–363

7.    A comment on "Pliocene climate change of the Southwest Pacific and the impact of ocean gateways" by C. Karas, D. Nürnberg, R. Tiedemann, D. Garbe Schönberg, EPSL 301, 117–124 (2011)

Gerald R. Dickens, Jan Backman

Earth and Planetary Science Letters, Volumes 331–332, 15 May 2012, Pages 364–365

→Plioceneの南西太平洋の水温復元（Karas et al. 2011, EPSL）へのコメント＆リプライ。

Volumes 333–334, Pages 1-332 (1 June 2012)

8.    Rapid directional changes associated with a 6.5 kyr-long Blake geomagnetic excursion at the Blake–Bahama Outer Ridge

Mark Bourne, Conall Mac Niocaill, Alex L. Thomas, Mads Faurschou Knudsen, Gideon M. Henderson

Earth and Planetary Science Letters, Volumes 333–334, 1 June 2012, Pages 21–34

→ODP Site 1062 (Blake–Bahama Outer Ridge) の堆積物コアの古地磁気測定で、Blakeエクスカーション研究。129-122kaらしい。

9.    Positive correlation between Li and Mg isotope ratios in the river waters of the Mackenzie Basin challenges the interpretation of apparent isotopic fractionation during weathering

Edward T. Tipper, Damien Calmels, Jérôme Gaillardet, Pascale Louvat, Françoise Capmas, Benoït Dubacq

Earth and Planetary Science Letters, Volumes 333–334, 1 June 2012, Pages 35–45

→カナダのMackenzie Basinの河川のMgとLiの同位体組成と風化の関係を議論。

10.  10Be-derived Himalayan denudation rates and sediment budgets in the Ganga basin

Maarten Lupker, Pierre-Henri Blard, Jérôme Lavé, Christian France-Lanord, Laetitia Leanni, Nicolas Puchol, Julien Charreau, Didier Bourlès

Earth and Planetary Science Letters, Volumes 333–334, 1 June 2012, Pages 146–156

→Ganga basinの河川堆積物石英のin-situ 10Beから、ヒマラヤの侵食速度を推定。0.5-2.4mm/yr。

11.  Uranium-236 as a new oceanic tracer: A first depth profile in the Japan Sea and comparison with caesium-137

Aya Sakaguchi, Akinobu Kadokura, Peter Steier, Yoshio Takahashi, Kiyoshi Shizuma, Masaharu Hoshi, Tomoeki Nakakuki, Masayoshi Yamamoto

Earth and Planetary Science Letters, Volumes 333–334, 1 June 2012, Pages 165–170

→236U（人為起源放射性核種でAMSで測定する）と137Csの日本海での深度プロファイル。海水と一緒に保存的に分布しているらしいので、海洋循環のトレーサーに使える？

12.  Timing and origin of recent regional ice-mass loss in Greenland

Ingo Sasgen, Michiel van den Broeke, Jonathan L. Bamber, Eric Rignot, Louise Sandberg Sørensen, Bert Wouters, Zdeněk Martinec, Isabella Velicogna, Sebastian B. Simonsen

Earth and Planetary Science Letters, Volumes 333–334, 1 June 2012, Pages 293–303

→GRACE, RCM/InSAR, ICESatで、2002-2010年のグリーンランドの氷床のマスバランス推定。

13.  Magnesium isotope fractionation during precipitation of inorganic calcite under laboratory conditions

Weiqiang Li, Suvankar Chakraborty, Brian L. Beard, Christopher S. Romanek, Clark M. Johnson

Earth and Planetary Science Letters, Volumes 333–334, 1 June 2012, Pages 304–316

→無機Calcite沈殿実験におけるMg同位体分別。温度との関係式を出している。

14.  Boundary scavenging at the East Atlantic margin does not negate use of 231Pa/230Th to trace Atlantic overturning

Jörg Lippold, Stefan Mulitza, Gesine Mollenhauer, Stefan Weyer, David Heslop, Marcus Christl

Earth and Planetary Science Letters, Volumes 333–334, 1 June 2012, Pages 317–331

→ナミビアとセネガルの海洋堆積物35kyrの231Pa/230Thを測定し、AMOCの指標としての有用性を検討。粒子フラックスはあまり効かないので、高生産性海域でも問題なく使えそうらしい。

☆Marine Geology☆

Volumes 311–314, Pages 1-70 (15 May 2012)

15.  Glacimarine sedimentary processes and depositional environments in an embayment fed by West Greenland ice streams

K.A. Hogan, J.A. Dowdeswell, C. Ó Cofaigh

Marine Geology, Volumes 311–314, 15 May 2012, Pages 1–16

→西グリーンランドDisko湾の堆積物の音波構造探査。LGMからの氷床の動きと堆積フラックスを推定。

16.  Late Pleistocene to Holocene tephrostratigraphic record from the Northern Ionian Sea

B. Caron, G. Siani, R. Sulpizio, G. Zanchetta, M. Paterne, R. Santacroce, E. Tema, E. Zanella

Marine Geology, Volumes 311–314, 15 May 2012, Pages 41–51

→地中海のイオニア海北部の海洋堆積物の過去20kyrのテフラ記録。

17.  U/Pb dating of a terminal Pliocene coral from the Indonesian Seaway

Mark C. Quigley, Brendan Duffy, Jon Woodhead, John Hellstrom, Louise Moody, Travis Horton, Jhony Soares, Lamberto Fernandes

Marine Geology, Volumes 311–314, 15 May 2012, Pages 57–62

→Plioceneの化石サンゴのU-Pb年代を初めて測定したらしい。2.66±0.14Maで、他の手法（87Sr/86Sr、生層序）とも整合的。ティモール海。14CやU/Thが使えない年代にも適用可能？

☆Quaternary Science Reviews☆

Volume 44, Pages 1-240 (21 June 2012)

Special Issue “Quaternary Glaciation History of Northern Europe”

Edited by Christopher Lüthgens, Jonathan Lee, Margot Böse and James Rose

→第四紀のヨーロッパ北部の氷床についての特集号で、15本の論文が掲載。以下にいくつか抜粋。

18.  Quaternary glaciations of northern Europe

Margot Böse, Christopher Lüthgens, Jonathan R. Lee, James Rose

Quaternary Science Reviews, Volume 44, 21 June 2012, Pages 1–25

19.  Ice-flow pattern and extent of the last Scandinavian Ice Sheet southeast of the Baltic Sea

Volli Kalm

Quaternary Science Reviews, Volume 44, 21 June 2012, Pages 51–59

20.  Late Quaternary ice sheet extents in northeastern Germany inferred from surface exposure dating

V. Rinterknecht, R. Braucher, M. Böse, D. Bourlès, J.-L. Mercier

Quaternary Science Reviews, Volume 44, 21 June 2012, Pages 89–95

Volume 45, Pages 1-134 (29 June 2012)

21.  Speleothem isotopic evidence of winter rainfall variability in northeast Turkey between 77 and 6 ka

P.J. Rowe, J.E. Mason, J.E. Andrews, A.D. Marca, L. Thomas, P. van Calsteren, C.N. Jex, H.B. Vonhof, S. Al-Omari

Quaternary Science Reviews, Volume 45, 29 June 2012, Pages 60–72

→トルコ北東部の鍾乳石の77-6kaの酸素・炭素同位体組成。長期的には歳差サイクルに駆動され、千年スケール変動はGreenland氷床コアや中国鍾乳石の記録と似ている？　アジアモンスーンとの相関？

22.  ITCZ and ENSO-like pacing of Nile delta hydro-geomorphology during the Holocene

Nick Marriner, Clément Flaux, David Kaniewski, Christophe Morhange, Guillaume Leduc, Vincent Moron, Zhongyuan Chen, Françoise Gasse, Jean-Yves Empereur, Jean-Daniel Stanley

Quaternary Science Reviews, Volume 45, 29 June 2012, Pages 73–84

23.  Testing the robustness of a precipitation proxy-based North Atlantic Oscillation reconstruction

Flavio Lehner, Christoph C. Raible, Thomas F. Stocker

Quaternary Science Reviews, Volume 45, 29 June 2012, Pages 85–94

24.  Discussion of “Deglacial paleoclimate in the southwestern United States: an abrupt 18.6 cold event and evidence for a North Atlantic forcing of Termination I” by M.S. Lachniet, Y. Asmerom and V. Polyak

Isaac J. Winograd

Quaternary Science Reviews, Volume 45, 29 June 2012, Pages 126–128

25.  Response to the correspondence article by Dr. Winograd

Matthew S. Lachniet, Yemane Asmerom, Victor Polyak

Quaternary Science Reviews, Volume 45, 29 June 2012, Pages 129–133

☆Quaternary International☆

☆Geochimica et Cosmochimica Acta☆

☆Quaternary Research☆

☆Palaeogeography, Palaeoclimatology, Palaeoecology☆

☆Quaternary Geochronology☆

☆Global and Planetary Change☆

今回は新号なし

新着論文紹介 ELSEVIER

皆様、D1の坂下です。
先週マシンタイムでランチミーティングに参加できませんでしたので
ご確認ください。

☆Palaeogeography, Palaeoclimatology, Palaeoecology☆

Vol.s 335-336, Pages 1-94, 2012

南極特集

A refined calcareous nannofossil biostratigraphy for the middle Eocene–early Oligocene Southern Ocean ODP sites

D. Persico, C. Fioroni, G. Villa

Antarctic topography at the Eocene–Oligocene boundary

Douglas S. Wilson, Stewart S.R. Jamieson, Peter J. Barrett, German Leitchenkov, Karsten Gohl, Robert D. Larter

Basement control on past ice sheet dynamics in the Amundsen Sea Embayment, West Antarctica

Karsten Gohl

The overdeepening hypothesis: How erosional modification of the marine-scape during the early Pliocene altered glacial dynamics on the Antarctic Peninsula's Pacific margin

Philip J. Bart, Masao Iwai

Early stall of West Antarctic Ice Sheet advance on the eastern Ross Sea middle shelf followed by retreat at 27,500 ¹⁴C yr BP

Philip J. Bart, Amy N. Cone

Do blue-ice moraines in the Heritage Range show the West Antarctic ice sheet survived the last interglacial?

Christopher J. Fogwill, Andrew S. Hein, Michael J. Bentley, David E. Sugden

Antarctic circumpolar current's role in the Antarctic ice system: An overview

Douglas G. Martinson

The Eocene–Oligocene transition: Changes in sea level, temperature or both?

Alexander J.P. Houben, Caroline A. van Mourik, Alessandro Montanari, Rodolfo Coccioni, Henk Brinkhuis

Cyclochronology of the Eocene–Oligocene transition from the Cape Roberts Project-3 core, Victoria Land basin, Antarctica

Simone Galeotti, Luca Lanci, Fabio Florindo, Tim R. Naish, Leonardo Sagnotti, Sonia Sandroni, Franco M. Talarico

☆Quaternary Internatinal☆

Vol. 264, Pages 1-134, 2012

気候変動と人類の特集

<例>

The consequences of Middle Paleolithic diets on pregnant Neanderthal women

Bryan Hockett

☆Geochimica et Cosmochimica Acta☆

Vol. 88, Pages 1-282, 2012

Diagenetic barium cycling in Black Sea sediments – A case study for anoxic marine environments

Susann Henkel, José M. Mogollón, Kerstin Nöthen, Christine Franke, Kara Bogus, Eric Robin, André Bahr, Martin Blumenberg, Thomas Pape, Richard Seifert, Christian März, Gert J. de Lange, Sabine Kasten

The influence of high hydrostatic pressure on bacterial dissimilatory iron reduction

Aude Picard, Denis Testemale, Jean-Louis Hazemann, Isabelle Daniel

Influence of eolian deposition and rainfall amounts on the U-isotopic composition of soil water and soil minerals

Jessica L. Oster, Daniel E. Ibarra, Caroline R. Harris, Katharine Maher

Rate constants and mechanisms for the crystallization of Al nano-goethite under environmentally relevant conditions

Ekaterina Bazilevskaya, Douglas D. Archibald, Carmen Enid Martínez

Modeling radium distribution in coastal aquifers during sea level changes: The Dead Sea case

Yael Kiro, Yoseph Yechieli, Clifford I. Voss, Abraham Starinsky, Yishai Weinstein

☆Global and Planetary Change☆

Vol.s 90-91, Pages 1-158, 2012

特になし

☆Palaeogeography, Palaeoclimatology, Palaeoecology☆

Vol.s 339-341, Pages 1-132, 2012

Palaeoclimate dynamics in continental Southeast Asia over the last ~ 30,000 Cal yrs BP

Charlotte G. Cook, Richard T. Jones

Origin of deep water in the Japan Sea over the last 145 kyr

K. Minoura, K. Akaki, N. Nemoto, S. Tsukawaki, T. Nakamura

Changes in upwelling mechanisms drove the evolution of marine organisms

Itsuki Suto, Keita Kawamura, Shinta Hagimoto, Akihito Teraishi, Yuichiro Tanaka

Influence of the opening of the Drake Passage on the Cenozoic Antarctic Ice Sheet: A modeling approach

Luisa Cristini, Klaus Grosfeld, Martin Butzin, Gerrit Lohmann

Mid-Ludfordian coeval carbon isotope, natural gamma ray and magnetic susceptibility excursions in the Mielnik IG-1 borehole (Eastern Poland)—Dustiness as a possible link between global climate and the Silurian carbon isotope record

Wojciech Kozłowski, Katarzyna Sobień