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