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Ping Zhang, Haisheng Liu, Shengli Hou, Nanping Wang and Nianqiao Fang
Natural thermoluminescence (TL) from the core of MD81349 marine calcareous biological ooze samples in the Ninetyeast Ridge of the equatorial northeast Indian Ocean and from the core of IODP306-U1312B in the high latitudes of the North Atlantic Ocean was ...
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Anthony R. Fiorillo, Paul J. McCarthy, Yoshitsugu Kobayashi and Marina B. Suarez
The partially correlative Alaskan dinosaur-bearing Prince Creek Formation (PCF), North Slope, lower Cantwell Formation (LCF), Denali National Park, and Chignik Formation (CF), Aniakchak National Monument, form an N?S transect that, together, provides an ...
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Zeynab Foroozan, Jussi Grießinger, Kambiz Pourtahmasi and Achim Bräuning
To develop multi-century stable isotope chronologies from tree rings, pooling techniques are applied to reduce laboratory costs and time. However, pooling of wood samples from different trees may have adverse effects on the signal amplitude in the final ...
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Teresa E. Jordan,Christian Herrera L.,Linda V. Godfrey,Stephen J. Colucci,Carolina Gamboa P.,Javier Urrutia M.,Gabriel González L.,Jacob F. Paul
Pág. 1 - 31
Prior to the 24-26 March 2015 extreme precipitation event that impacted northern Chile, the scenarios for Pleistocene and Holocene wetter paleoclimate intervals in the hyperarid core of the Atacama Desert had been attributed to eastern or southwestern mo...
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W. Jackson Davis, Peter J. Taylor and W. Barton Davis
We report a previously-unexplored natural temperature cycle recorded in ice cores from Antarctica?the Antarctic Centennial Oscillation (ACO)?that has oscillated for at least the last 226 millennia. Here we document the properties of the ACO and provide a...
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W. Jackson Davis, Peter J. Taylor and W. Barton Davis
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He Zhao and Wei Zhang
There are few studies on the climate and glacial scale in the mountains east of the Qinghai?Tibet Plateau. So, we used glacial features to determine the range of the area?s paleoglaciers and the equilibrium line altitude (ELA) of theGlA modern and paleog...
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Brandon Keough and Kenneth Ridgway
The Cantwell Formation of the central Alaska Range provides a robust archive of high-latitude, Late Cretaceous depositional systems and paleo-floral/faunal assemblages. Our stratigraphic analysis defines two mappable members. The lower member (1500?2000 ...
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Jiao Guo, Jiansheng Shi, Hongyun Chen, Chao Song, Qiuyao Dong and Wei Wang
Paleoclimate studies of loess in China have focused mostly on the time series of a single borehole or profile. However, research on loess strata and regional paleoenvironmental patterns could facilitate a deeper understanding of loess as a paleoenvironme...
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Dionysios Stamatis, Alexandros Emmanouilidis, Alessia Masi, Adam Izdebski and Pavlos Avramidis
This research presents the paleoenvironmental evolution of a drained lake at the Lousoi plateau (northern Peloponnese), for the last 10,000 years, through the study of a 7 m depth core. Analyses conducted on the core include grain size, TOC, TN, pH, EC, ...
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Atef M. Kasem, Mahmoud Faris, Luigi Jovane, Taysir Abdelhamid Ads, Fabrizio Frontalini and Amr S. Zaky
The variations in assemblages of calcareous nannofossils are tracked in the Dakhla and Tarawan Formations exposed at Gebel Nezzazat (central Sinai, Egypt). Five calcareous nannofossil biozones, namely NP2/3, NP4, NP5, NP6, and NP7/8 are identified. A dis...
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Nagham Omar, Tom McCann, Ali I. Al-Juboury, Maria A. Ustinova and Arkan O. Sharezwri
Early Jurassic- to Early Cretaceous-age calcareous nannofossils from the Sarki, Sehkanyian, Sargelu, Naokelekan, Barsarin and Chia Gara formations are investigated for the first time from the Warte area, northeastern Iraqi Kurdistan. A range of isotopic ...
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Stella Eyrikh, Gennady Boeskorov, Tatyana Serykh, Marina Shchelchkova and Tatyana Papina
The paper presents the first results of Hg determination in the hair of prehistorical animals (woolly mammoth, steppe bison, and woolly rhino). Hair of prehistorical mammals can be used as an archive that preserves changes of environmental pollution at t...
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Juan M. Robledo,Maricel Y. Horn,Claudia I. Galli,Luisa M. Anzótegui
Pág. 418 - 429
The continental sedimentary rocks that constitute the Palo Pintado Formation of the late Miocene from Salta province, presents a great paleoclimatic interest due to the environmental conditions prevailing during this geochronologic interval. The geologic...
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M. Jimena Andreazzini,Susana B. Degiovanni,Aldo R. Prieto,Alfonsina Tripaldi,M. Elisa Luque
Pág. 77 - 109
Wet-meadows are wetlands of high environmental value and common in the Patagonia, Cordillera de los Andes and Pampean Ranges of Argentina. Particularly, the studies about the functioning and dynamics of wet-meadows are still insufficient and partials in ...
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Elissavet Dotsika and Georgios Diamantopoulos
In this paper, we study d15N enrichment as an indicator not only of marine protein diet, but also of climate change. The slope of the variation of d15N with precipitation was calculated equal to 0.38/100 mm of precipitation for Greek plants, 0.38/100 mm ...
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Liudmila L. Demina, Ekaterina A. Novichkova, Alexander P. Lisitzin and Nina V. Kozina
A multiproxy study of the sediment cores taken from the Snorri Drift, formed under the influence of the Iceland?Scotland bottom contour current, and from the Gloria Drift, located southward Greenland at the boundary of Irminger and Labrador Seas, was per...
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Jonathan M. Stelling and Zicheng Yu
The Antarctic Peninsula (AP) climate is characterized by a high degree of variability, which poses a problem when attempting to put modern change in the context of natural variation. Therefore, novel methods are required to disentangle sometimes conflict...
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Thomas J. Bracegirdle, Florence Colleoni, Nerilie J. Abram, Nancy A. N. Bertler, Daniel A. Dixon, Mark England, Vincent Favier, Chris J. Fogwill, John C. Fyfe, Ian Goodwin, Hugues Goosse, Will Hobbs, Julie M. Jones, Elizabeth D. Keller, Alia L. Khan, Steven J. Phipps, Marilyn N. Raphael, Joellen Russell, Louise Sime, Elizabeth R. Thomas, Michiel R. van den Broeke and Ilana WaineraddShow full author listremoveHide full author list
Quantitative estimates of future Antarctic climate change are derived from numerical global climate models. Evaluation of the reliability of climate model projections involves many lines of evidence on past performance combined with knowledge of the proc...
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Arghya Goswami, Linda Hinnov, Anand Gnanadesikan and Taylor Young
At present, global paleoclimate simulations are prepared with bathtub-like, flat, featureless and steep walled ocean bathymetry, which is neither realistic nor suitable. In this article, we present the first enhanced version of a reconstructed paleobathy...
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