ラベル Nakamura の投稿を表示しています。 すべての投稿を表示
ラベル Nakamura の投稿を表示しています。 すべての投稿を表示

6/19/2015

富士五湖の掘削に向けて

皆様

中村です。
報告が少し遅くなりましたが、71日から産総研特別研究員として、産業技術総合研究所に赴任することになりました。
所属は、活断層・火山研究部門 海溝型地震履歴研究グループです。


612日に山梨県富士山科学研究所で行なわれた打ち合わせに参加してきました。



まずは音波探査のデータをもとに、今年度の富士五湖の掘削地点の詳細を検討しました。



午後は昨年度に採取されたコアの半割です。
堆積物を用いた研究がいよいよ始まります。

その後は、富士五湖の一つ、西湖に行きました。湖周辺の地形を把握し、掘削地点について議論しました。



ちょうど西湖に到着したタイミングで晴れ間が!
ガスから覗く富士山が神秘的でした。

5/19/2015

Allan教授のセミナーその2

2回目のセミナーは"Application of clumped isotopes to paleoenvironments"
というタイトルで、clumped isotopeの原理と古環境復元への利用について講義していただきました。

特にclumped isotopeを低温熱年代の解析に応用できるのではないかという最新の研究紹介に興味を持ちました。
clumped isotopeは海水の同位体組成の影響を受けない絶対温度計として着目されています。このような利用方法に加えて、フィッショントラック年代や(U-Th)/He年代のように、岩体の侵食履歴の復元にも利用できる可能性があるとのこと。

セミナー後は、はまにてお別れ会を行ないました。


10/01/2014

新着論文紹介(2014/9/30) AGU, EGU


Climate of the Past
1. Millennial minimum temperature variations in the Qilian Mountains, China: evidence from tree rings
Y. Zhang, X. M. Shao, Z.-Y. Yin, and Y. Wang

Global Biogeochemical Cycles
2. Late summer net community production in the central Arctic Ocean using multiple approaches
Nicolas Cassar, Meri Korhonen, Steven Heuven, Mario Hoppema, Gerhard Kattner, Leif G. Anderson
DOI: 10.1002/2014GB004833

Paleoceanography
3. Probabilistic Sequence Alignment of Stratigraphic Records
Luan Lin, Deborah Khider, Lorraine E. Lisiecki, Charles E. Lawrence
DOI: 10.1002/2014PA002713

JGR-Oceans
4. An integrated database of ocean temperature and salinity observations
Christopher P. Atkinson, Nick A. Rayner, John J. Kennedy, Simon A. Good
DOI: 10.1002/2014JC010053

GRL
5. Failure of CMIP5 Climate Models in Simulating Post-1950 Decreasing Trend of Indian Monsoon
Anamitra Saha, Subimal Ghosh, A S Sahana, E P Rao
DOI: 10.1002/2014GL061573

G-cubed, GSA Bulletin
なし

8/26/2014

新着論文紹介 ELSEVIER 2014/8/26


♪EPSL♪
1. Migration of a coarse fluvial sediment pulse detected by hysteresis in bedload generated seismic waves
D.L. Roth , N.J. Finnegan , E.E. Brodsky , K.L. Cook , C.P. Stark , H.W. Wang
DOI: 10.1016/j.epsl.2014.07.019

2. Present-day geodynamics of the northern North American Cordillera
Emily S. Finzel , Lucy M. Flesch , Kenneth D. Ridgway
DOI: 10.1016/j.epsl.2014.07.024

♪GPC♪
3. Glacier volume and area change by 2050 in high mountain Asia
Liyun Zhao , Ran Ding , John C. Moore
DOI: 10.1016/j.gloplacha.2014.08.006

4. Spatial variations of sea level along the coast of Thailand: impacts of extreme land subsidence, earthquakes and the seasonal monsoon
Suriyan Saramul , Tal Ezer
DOI: 10.1016/j.gloplacha.2014.08.012

5. Time-scale and astronomical forcing of serbian loess-palaeosol sequences
Biljana Basarin , Bjoern Buggle , Ulrich Hambach , Slobodan B. Marković , Ken O’Hara Dhand , Andjelka Kovačević , Thomas Stevens , Zhengtang Guo , Tin Lukić
DOI: 10.1016/j.gloplacha.2014.08.007

♪Paleo3♪
6. Ostracod evidence for the Acheulian environment of the ancient Hula Lake (Levant) during the early-mid Pleistocene transition
Steffen Mischke , Shoshana Ashkenazi , Ahuva Almogi-Labin , Naama Goren-Inbar
DOI: 10.1016/j.palaeo.2014.07.036

♪QG♪
7. Combined uranium series and 10Be cosmogenic exposure dating of surface abandonment: A case study from the Ölgiy strike-slip fault in western Mongolia
L.C. Gregory , A.L. Thomas , R.T. Walker , R. Garland , C. Mac Niocaill , C.R. Fenton , A. Bayasgalan , T. Amgaa , B. Gantulga , S. Xu , C. Schnabel , A. Joshua West
DOI: 10.1016/j.quageo.2014.07.005

♪QI♪
8. The last glacial maximum and late glacial environmental and climate dynamics in the Baikal region inferred from an oxygen isotope record of lacustrine diatom silica
Svetlana S. Kostrova , Hanno Meyer , Bernhard Chapligin , Pavel E. Tarasov , Elena V. Bezrukova
DOI: 10.1016/j.quaint.2014.07.034

9. Vegetation and climate change during mid and late Holocene in northern Chhattisgarh (central India) inferred from pollen records
M.F. Quamar , S.K. Bera
DOI: 10.1016/j.quaint.2014.07.039

♪QR♪
10. Holocene sea-surface temperature variability in the Chilean fjord region
Magaly Caniupán , Frank Lamy , Carina B. Lange , Jérôme Kaiser , Rolf Kilian , Helge W. Arz , Tania León , Gesine Mollenhauer , Susana Sandoval , Ricardo De Pol-Holz , Silvio Pantoja , Julia Wellner , Ralf Tiedemann
DOI: 10.1016/j.yqres.2014.07.009

♪QSR♪
11. Sea surface temperatures in Disko Bay during the Little Ice Age – caution needs to be exercised before assigning Thalassiosira kushirensis resting spore as a warm-water indicator in palaeoceanographic studies
Kaarina Weckström , Arto Miettinen , Beth Caissie , Christof Pearce , Marianne Ellegaard , Diana Krawczyk , Andrzej Witkowski
DOI: 10.1016/j.quascirev.2014.07.015

12. LGM hosing approach to Heinrich Event 1: results and perspectives from data–model integration using water isotopes
Didier M. Roche , Didier Paillard , Thibaut Caley , Claire Waelbroeck
DOI: 10.1016/j.quascirev.2014.07.020

Chemical geology, GCA
特になし

6/25/2014

新着論文紹介 ELSEVIER 2014/6/24


EPSL
1. Changing amounts and sources of moisture in the U.S. southwest since the Last Glacial Maximum in response to global climate change
Weimin Feng , Benjamin F. Hardt , Jay L. Banner , Kevin J. Meyer , Eric W. James , MaryLynn Musgrove , R. Lawrence Edwards , Hai Cheng , Angela Min
DOI: 10.1016/j.epsl.2014.05.046

2. The effects of weathering on the strength and chemistry of Columbia River Basalts and their implications for Mars Exploration Rover Rock Abrasion Tool (RAT) results
B.J. Thomson , J.A. Hurowitz , L.L. Baker , N.T. Bridges , A.M. Lennon , G. Paulsen , K. Zacny
DOI: 10.1016/j.epsl.2014.05.012

3. Cosmogenic noble gas paleothermometry
Marissa M. Tremblay , David L. Shuster , Greg Balco
DOI: 10.1016/j.epsl.2014.05.040

4. Beryllium isotopes as tracers of Lake Lisan (last Glacial Dead Sea) hydrology and the Laschamp geomagnetic excursion
Reuven Belmaker , Mordechai Stein , Jürg Beer , Marcus Christl , David Fink , Boaz Lazar
DOI: 10.1016/j.epsl.2014.05.049

5. Devils Hole paleotemperatures and implications for oxygen isotope equilibrium fractionation
Tobias Kluge , Hagit P. Affek , Yuri Dublyansky , Christoph Spötl
DOI: 10.1016/j.epsl.2014.05.047

Global and Planetary Change
6. Palaeolimnological evidence for an east–west climate see-saw in the Mediterranean since AD 900
Neil Roberts , Ana Moreno , Blas L. Valero-Garcés , Juan Pablo Corella , Matthew Jones , Samantha Allcock , Jessie Woodbridge , Mario Morellón , Juerg Luterbacher , Elena Xoplaki , Murat Türkeş
DOI: 10.1016/j.gloplacha.2011.11.002

Paleo3
7. Extraordinary hydro-climatic events during 1800–1600yr BP in the Jin–Shaan Gorges along the middle Yellow River, China
Tao Liu , Chun Chang Huang , Jiangli Pang , Yali Zhou , Yuzhu Zhang , Lin Ji , Ruiqing Shang
DOI: 10.1016/j.palaeo.2014.05.039

QI
8. Rare earth element composition of paleo-maar sediments (latest Pleistocene–Early Holocene), Jeju Island, Korea: Implications for Asian dust record and monsoon climate
Min Kyung Lee , Seung Hyoun Lee , Yong Il Lee , Ho Il Yoon , Kyu Cheol Yoo
DOI: 10.1016/j.quaint.2014.05.036

QSR
9. Slow retreat of a land based sector of the West Greenland Ice Sheet during the Holocene Thermal Maximum: evidence from threshold lakes at Paakitsoq
Lena Håkansson , Jason P. Briner , Camilla S. Andresen , Elizabeth K. Thomas , Ole Bennike
DOI: 10.1016/j.quascirev.2014.05.016

10. A post-glacial sea level hinge on the central Pacific coast of Canada
Duncan McLaren , Daryl Fedje , Murray B. Hay , Quentin Mackie , Ian J. Walker , Dan H. Shugar , Jordan B.R. Eamer , Olav B. Lian , Christina Neudorf
DOI: 10.1016/j.quascirev.2014.05.023

11. Inferring local to regional changes in forest composition from Holocene macrofossils and pollen of a small lake in central Upper Michigan
Stephen T. Jackson , Robert K. Booth , Kelly Reeves , Jennifer Jewell Andersen , Thomas A. Minckley , Rachel A. Jones
DOI: 10.1016/j.quascirev.2014.05.030

12. Controls on Sr/Ca in benthic foraminifera and implications for seawater Sr/Ca during the late Pleistocene
Jimin Yu , Henry Elderfield , Zhangdong Jin , Paul Tomascak , Eelco J. Rohling
DOI: 10.1016/j.quascirev.2014.05.018

13. Timing and extent of Quaternary glaciations in the Tianger Range, eastern Tian Shan, China, investigated using 10Be surface exposure dating
Yingkui Li , Gengnian Liu , Yixin Chen , Yanan Li , Jon Harbor , Arjen P. Stroeven , Marc Caffee , Mei Zhang , Chuanchuan Li , Zhijiu Cui
DOI: 10.1016/j.quascirev.2014.05.009

Chemical Geology, GCA, QG, QR なし