2013/12/10 New Papers (Elsevier)
♣Chemical Geology♣
1. The Great Oxidation
and a Siderian snowball Earth: MIF-S based correlation of Paleoproterozoic
glacial epochs
Paul F. Hoffman
Volume 362, 20 December 2013, Pages 143–156
•A new correlation
scheme for early Paleoproterozoic glaciations is proposed.
•The second of
three glacial epochs is framed by the disappearance of MIF (Δ33S).
•The same
glaciation was arguably a snowball Earth.
•The new scheme
simplifies early Paleoproterozoic Earth history.
•It reconciles
apparent asynchrony between MIF disappearance in North America and South
Africa.
2. Evolution of the atmosphere and ocean through time
Andrey Bekker , James Kasting, Ariel Anbar
3. Radiocarbon
signatures and size–age–composition relationships of major organic
matter pools within a unique California upwelling system
B.D. Walker, T.P.
Guilderson, K.M. Okimura, M.B. Peacock, M.D. McCarthy
Δ14Cをトレーサーにして、Coastal upwelling zoneのPOM,DOM (particulate and
dissolved organic matter)の炭素循環内への影響を見積ろうとした論文。３つの同位体(δ13C, δ15N, Δ14C)の混合モデルを使用して、POM中のnewly-produced OMと“pre-aged”OMの割合を評価した。最終的に、OMのサイズ、CN比と湧昇プロセス中のΔ14Cの定量的な関係を観測した。
♣Global and Planetary Change♣
4. Introduction to 'Magnetic iron minerals in sediments and their
relation to geologic processes, climate, and the geomagnetic field'
Ramon Egli, Fabio
Florindo, Andrew P. Roberts
5. Are there
interactive effects of physiological and radiative forcing produced by
increased CO2 concentration on changes of land hydrological cycle?
Jing Peng, Li Dan, Wenjie Dong
In Press, Accepted Manuscript
•Three coupled
climate–carbon cycle models were used to estimate whether changes in land
hydrological cycle responded to interactive effects of CO2-physiological
forcing and CO2-radiative forcing.
•No signs could be
indicated that interactive effects of CO2 physiological and radiative forcing
on precipitation, evapotranspiration and runoff.
•Attribution of the
CO2-physiological forcing to changes in stomatal conductance versus changes in
vegetation structure is an issue to discuss, and among the three models, no
agreement appeared.
Interactive effect; CO2-physiological forcing; CO2-radiative forcing;
Precipitation; Transpiration; Runoff; CMIP5
6. Recent climate changes over the Tibetan Plateau and their impacts on
energy and water cycle: A review
Kun Yang, Hui Wu, Jun Qin, Changgui Lin, Wenjun Tang, Yingying Chen
In Press, Accepted Manuscript
Warming; Wind stilling; Solar dimming; Thermal forcing; Water cycle;
Bowen ratio
♣Quaternary
Geochronology♣
7. The potential of cryptotephra and OSL dating for
refining the chronology of open-air archaeological windblown sand sites: a case
study from Mirkowice 33, northwest Poland
Rupert A. Housley, Alison MacLeod, Simon J. Armitage,
Jacek Kabaciński, Clive S. Gamble
In Press, Accepted Manuscript
•Discovery of an identifiable non-visible cryptotephra in
windblown sand
•Late Palaeolithic (Hamburgian) lithics artefacts present
•Tephra geochemistry is compatible with Askja volcanic
centre
•Single grain OSL dating of sand indicates age of 2.3 ±
0.1 ka BP
•Suggests tephra is from ‘Glen Garry’ eruption (2.21-1.96
ka BP)
Aeolian sand; Late Palaeolithic; Hamburgian;
Tephrostratigraphy; Askja eruptions; Optically Stimulated Luminescence
8. Quaternary Geochronology Special Issue: Advances in 40Ar/39Ar
Dating of Quaternary Events and Processes
Brad S. Singer
In Press, Accepted Manuscript
Biśnik Caveの熊の歯のエナメル質のd13Cとd18Oを測定、歯のセメント質の季節周期の検討に応用した。d13Cとd18Oに相関はない。セメント質の分析は、全ての種の熊が死ぬ季節は冬であることを明らかにし、研究された熊は全て冬眠中に死んでいたことが分かった。
9. Paleoecology of
bears from MIS 8–MIS 3 deposits of Biśnik Cave based on stable isotopes (δ13C,
δ18O) and dental cementum analyses
Maciej T. Krajcarz , Magdalena Krajcarz, Adrian Marciszak
In Press, Corrected Proof
10. Changes in extreme
wet events in Southwestern China in 1960–2011
Liguo Cao, Shaoming Pan, Qiang Wang, Yun Wang, Wei Xu
In Press, Corrected Proof
南西中国の108の気候データと1960年−2011年のwet eventの空間・時間分布に基づいて、夏と冬のモンスーン期間が分析された。1960年代、７０年代、８０年代、2000年代にextreme wet eventの頻度が減少する傾向があるのに対し、1990年代は平均よりも著しく増加する。extreme wet event を経験した地域数の増加は高緯度域に分布する。2002年の abrupt changeは夏モンスーン、1998年のabrupt changeは冬モンスーンの間におきた。extreme wet eventの周期は、26年と１２年である。
♣Quaternary
Science Reviews♣
11. The deglaciation history of the Simplon
region (southern Swiss Alps) constrained by 10Be exposure dating of ice-molded
bedrock surfaces
Armin Dielforder, Ralf Hetzel
Volume 84, 15 January
2014, Pages 26–38
•We
constrain the deglaciation of the Simplon Pass region with 10Be dating of
bedrock.
•The
pass became ice-free at 14.1 ± 0.4 ka during the Bølling–Allerød interstadial.
•The
earlier decay of high Alpine transection glaciers occurred 18–17 ka ago.
10Be exposure dating; Deglaciation; Paleoclimate;
Swiss Alps; Alpine Lateglacial; Last Glacial Maximum
12. Event layers in the Japanese Lake
Suigetsu ‘SG06’ sediment core: description, interpretation and climatic
implications
Gordon Schlolaut, Achim Brauer, Michael H. Marshall,
Takeshi Nakagawa, Richard A. Staff, Christopher Bronk Ramsey, Henry F. Lamb,
Charlotte L. Bryant, Rudolf Naumann, Peter Dulski, Fiona Brockd, Yusuke
Yokoyama, g, Ryuji Tada, Tsuyoshi Haraguchi, Suigetsu 2006 project members 1
Volume 83, 1 January 2014, Pages 157–170
•First
long-term (0–40 ka BP),
quantitative flood chronology from Japan.
•Detailed
description of event types in Lake Suigetsu.
•2
event layer types described here for the first time for the Suigetsu sediment.
•Climatic
interpretation suggests stronger typhoon influence on Japan during the LGM.
水月湖の洪水レイヤーに関する研究。25ka付近の氷期にflood layerの頻度は最も高いが、この次期は、日本は寒く乾燥した時期だった。Heinrich Event 1やthe Late Glacial stadialといった他の寒い時期は、flood layerの頻度は低かった。特に氷期の時期について、モンスーンフロントや融氷よりも、台風の発生や台風の軌跡がflood layerの頻度を最もコントロールしていたと考えられる。しかし、flood layerの頻度は気候変動だけではなく、例えば地震による風化率の変化にも影響される。
Floods; Earthquakes; Microfacies; Microscopy; μXRF;
East Asia; Lacustrine; Typhoons; LGM
♣Palaeogeography, Palaeoclimatology,
Palaeoecology♣
♣Earth and Planetary Science Letters♣
♣Quaternary research♣
特になし
