4/24/2012

2012.4.24 新着論文紹介 This Week’s New Paper

Oxygen isotope fractionation between calcite and fluid as a function of growth rate and temperature: An in situ study
Gabitov, R., I., E. B. Watson, and A. Sadekov (2012) Chemical Geology 306–307:92-102.
doi: 10.1016/j.chemgeo.2012.02.021. Full Article
SIMSを用いたin situ studyの結果、カルサイトの成長の速さによって酸素同位体比に違いが生じるという証拠を初めて示した。成長が速いときと遅いときとで、一番大きくて、3‰の違いが生じたらしい(同じ15℃で)。

Early–middle Holocene lake-desert evolution in northern Ulan Buh Desert, China
Zhao, H., G. Li, Y. Sheng, M. Jin, and F. Chen (2012) Palaeogeography, Palaeoclimatology, Palaeoecology 331–332:31-38.
doi: 10.1016/j.palaeo.2012.02.027. Full Article
サンゴを用いて古気候復元を行う上で、留意しなければいけない点(CaCO3にもいろんなタイプがあるとか)について言及(いまいち何が新しいのかよく分かりませんでした)

Late Pleistocene history of turbidite sedimentation in a submarine canyon off the northern Great Barrier Reef, Australia
Webster, J., M., R. Beaman, J., Á. Puga-Bernabéu, D. Ludman, W. Renema, R. Wust, A.J., N. George, P.J., P. Reimer, J., G. Jacobsen, E., and P. Moss (2012) Palaeogeography, Palaeoclimatology, Palaeoecology 331–332:75-89.
doi: 10.1016/j.palaeo.2012.02.034. Full Article
Great Barrier Reef沖の海底渓谷の3つの堆積物コアを調べた結果、MISによってタービダイト層に異なる特徴が見られる結果が得られた(特にMIS3)。これは海底渓谷でタービダイト層が形成される過程において、海水準変動によりそのsourceが変化することが原因であると考えられる。

Palaeoprecipitation record using O-isotope studies of the Himalayan Foreland Basin sediments, NW India
Singh, S., B. Parkash, A. K. Awasthi, and T. Singh (2012) Palaeogeography, Palaeoclimatology, Palaeoecology 331–332:39-49.
doi: 10.1016/j.palaeo.2012.02.031. Full Article
インド北西の堆積物中の土壌生成炭酸塩(Pedogenic carbonates)の酸素同位体比を約150個分析した結果、酸素同位体比が約2‰大きく、新生代の気候は平均して約3℃気温が高かった可能性を示した。しかしながら、10Ma、5Ma、1.8Maには急激な酸素同位体比の低下が見られ、これは降水量の増加もしくはモンスーンが強化された可能性を示している(→ヒマラヤ山脈の影響?)。

Amundsen Sea sediment drifts: Archives of modifications in oceanographic and climatic conditions
Uenzelmann-Neben, G., and K. Gohl (2012) Marine Geology 299–302:51-62.
doi: 10.1016/j.margeo.2011.12.007. Full Article
Amundsen Seaの反射法地震探査データから、Eocene/Oligoceneの時にはすでに堆積物が流される現象(sediment drifts)が起こっており、低層流活動の存在が明らかになった。このsediment driftsは氷床の大きな拡大に付随して起こる現象らしい。

Development of an inshore fringing coral reef using textural, compositional and stratigraphic data from Magnetic Island, Great Barrier Reef, Australia
Lewis, S., E., R. Wüst, A.J., J. Webster, M., G. Shields, A., W. Renema, J. Lough, M., and G. Jacobsen (2012) Marine Geology 299–302:18-32.
doi: 10.1016/j.margeo.2012.01.003. Full Article
約10本の堆積物コアを用いて、オーストラリア北西部のNelly Bayでサンゴがどのように進化したのか、その進化過程を復元した。その結果、サンゴの発生は海水準が変動していたEarly Holoceneではなく、6.3ka以前(Mid-Holocene)であることが分かった。

The puzzling presence of calcite in skeletons of modern solitary corals from the Mediterranean Sea
Goffredo, S., E. Caroselli, F. Mezzo, L. Laiolo, P. Vergni, L. Pasquini, O. Levy, F. Zaccanti, A. Tribollet, Z. Dubinsky, and G. Falini (2012) Geochimica et Cosmochimica Acta 85:187-199.
doi: 10.1016/j.gca.2012.02.014. Full Article

The State and Fate of Himalayan Glaciers
Bolch, T., A. Kulkarni, A. Kääb, C. Huggel, F. Paul, J. G. Cogley, H. Frey, J. S. Kargel, K. Fujita, M. Scheel, S. Bajracharya, and M. Stoffel (2012) Science Science 336:310-314.
10.1126/science.1215828. Full Article

9,400 years of cosmic radiation and solar activity from ice cores and tree rings
Steinhilber, F., J. Abreu, A., J. Beer, I. Brunner, M. Christl, H. Fischer, U. Heikkilä, P. Kubik, W., M. Mann, K. McCracken, G., H. Miller, H. Miyahara, H. Oerter, and F. Wilhelms (2012) Proceedings of the National Academy of Sciences Proceedings of the National Academy of Sciences 109:5967-5971.
10.1073/pnas.1118965109. Full Article

Dynamic Causes of the Relation Between Area and Age of the Ocean Floor
Coltice, N., T. Rolf, P. J. Tackley, and S. Labrosse (2012) Science Science 336:335-338.
10.1126/science.1219120. Full Article

Cenozoic tectono-thermal history of the Tordrillo Mountains, Alaska: Paleocene-Eocene ridge subduction, decreasing relief, and late Neogene faulting
Benowitz, J., A., P. Haeussler, J., P. Layer, W., P. O’Sullivan, B., W. Wallace, K., and R. Gillis, J. (2012) Geochem. Geophys. Geosyst. 13:Q04009.
10.1029/2011GC003951. Full Article

Structure of unsteady overflow in the Słupsk Furrow of the Baltic Sea
Zhurbas, V., J. Elken, V. Paka, J. Piechura, G. Väli, I. Chubarenko, N. Golenko, and S. Shchuka (2012) J. Geophys. Res. 117:C04027.
10.1029/2011JC007284. Full Article

Phytoplankton production from melting ponds on Arctic sea ice
Lee, S., H., D. Stockwell, A., H.-M. Joo, Y. B. Son, C.-K. Kang, and T. Whitledge, E. (2012) J. Geophys. Res. 117:C04030.
10.1029/2011JC007717. Full Article

Seasonal dynamics of sea surface salinity off Panama: The far Eastern Pacific Fresh Pool
Alory, G., C. Maes, T. Delcroix, N. Reul, and S. Illig (2012) J. Geophys. Res. 117:C04028.
10.1029/2011JC007802. Full Article

Biogenic sedimentation in the equatorial Pacific: Carbon cycling and paleoproduction, 12–24 Ma
Piela, C., M. Lyle, F. Marcantonio, J. Baldauf, and L. Olivarez, Annette (2012) Paleoceanography 27:PA2204.
10.1029/2011PA002236. Full Article

Can we use ice sheet reconstructions to constrain meltwater for deglacial simulations?
Bethke, I., C. Li, and K. Nisancioglu, H. (2012) Paleoceanography 27:PA2205.
10.1029/2011PA002258. Full Article

Wind-induced reorganization of the Bering shelf circulation
Danielson, S., K. Hedstrom, K. Aagaard, T. Weingartner, and E. Curchitser (2012) Geophys. Res. Lett. 39:L08601.
10.1029/2012GL051231. Full Article

The event-to-event variability of the boreal winter MJO
Bellenger, H., and J. P. Duvel (2012) Geophys. Res. Lett. 39:L08701.
10.1029/2012GL051294. Full Article

Albedo evolution of seasonal Arctic sea ice
Perovich, D., K., and C. Polashenski (2012) Geophys. Res. Lett. 39:L08501.
10.1029/2012GL051432. Full Article

The extra-tropical Northern Hemisphere temperature in the last two millennia: reconstructions of low-frequency variability
Christiansen, B., and F. C. Ljungqvist (2012) Clim. Past CP 8:765-786.
10.5194/cp-8-765-2012. Full Article

A climate model intercomparison for the Antarctic region: present and past
Maris, M. N. A., B. de Boer, and J. Oerlemans (2012) Clim. Past CP 8:803-814.
10.5194/cp-8-803-2012. Full Article

Multi-century tree-ring based reconstruction of the Neuquén River streamflow, northern Patagonia, Argentina
Mundo, I. A., M. H. Masiokas, R. Villalba, M. S. Morales, R. Neukom, C. Le Quesne, R. B. Urrutia, and A. Lara (2012) Clim. Past CP 8:815-829.
10.5194/cp-8-815-2012. Full Article

The extra-tropical NH temperature in the last two millennia: reconstructions of low-frequency variability
Christiansen, B., and F. C. Ljungqvist (2011) Clim. Past Discuss. CPD 7:3991-4035.
10.5194/cpd-7-3991-2011. Full Article