Results 71 to 80 of about 2,119 (182)
Fitting the last Pleistocene δ18O and CO2 time series with simple box models
Based on the model of Paillard and Parrenin (2004), several box models that incorporate simple parameterizations of the oceanic CO2 pump were developed.
Antonio García-Olivares, Carmen Herrero
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Paleovejetasyonun yeniden kurulması amacıyla, erken Miyosen yaşlı Kılçak formasyonu (Orta Anadolu, Türkiye) çökellerinin palinolojik incelemesi gerçekleştirilmiştir.
Nurdan YAVUZ, Şükrü Sinan DEMİRER
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The stable isotope setting of Australopithecus sediba at Malapa, South Africa
We report δ13C and δ18O results from carbonate-cemented cave sediments at Malapa in South Africa. The sediments were deposited during a short-period magnetic reversal at 1.977±0.003 Ma, immediately preceding deposition of Facies D sediments that contain ...
Emily Holt +3 more
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The Aral Sea: a palaeoclimate archive
La Mer intracontinentale endoréique de l'Aral, éloignée de toute influence océanique, constitue en Asie Centrale une excellente archive sédimentaire pour des études paléoclimatiques à haute résolution. Nous avons effectué une analyse palynologique, sédimentologique et géochimique sur des carottages sédimentaires effectués dans la Baie de Chernyshov ...
openaire +3 more sources
Based on the comprehensive analysis of data from petrology and mineralogy, well logging, seismic surveys, paleontology, and geochemistry, a detailed research was conducted on paleoenvironmental and paleoclimatic conditions, and modeling of the source ...
Jianxiang PEI +3 more
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Evaporite karst in Italy: a review
Although outcropping rarely in Italy, evaporite (gypsum and anhydrite) karst has been described in detail since the early 20th century. Gypsum caves are now known from almost all Italian regions, but are mainly localised along the northern border of the ...
Jo De Waele +15 more
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Low-altitude palaeoglaciation in Atlantic mountain regions provides important insights into past climatic conditions and moisture dynamics during the Last Glacial Cycle. This study presents the first quantitative reconstruction of palaeoglaciers in Serra
Edgar Figueira +2 more
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The archaeology of glaciers and ice patches has developed as a distinct new field in response to climate change and the melting of mountain ice. Thousands of artefacts and biological materials, dating back up to 10 000 years are being released from ...
Lars Holger Pilø
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Methods for determining peat humification and for quantifying peat bulk density, organic matter and carbon content for palaeostudies of climate and peatland carbon dynamics [PDF]
Quantitative palaeostudies of climate change and carbon dynamics are reliant on precise and accurate laboratory measurements. Here we present laboratory protocols for the colorimetric determination of peat humification and for bulk density and organic ...
F.M. Chambers, D.W. Beilman, Z. Yu
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Procedures for extraction and purification of leaf wax biomarkers from peats [PDF]
Palaeoecological and palaeoclimate reconstruction, using leaf wax biomarkers, is a relatively new sub-discipline of peatland science. The ability to process large numbers of samples rapidly for biomarkers makes this type of analysis particularly ...
J.E. Nichols
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