Results 81 to 90 of about 7,634 (210)

DNA, spectroscopic and geochemical analyses of bone fragments and associated speleothems in Postojna cave, Slovenia

open access: yesActa Carsologica, 2020
a loose/broken stalagmite containing small fragments of cemented bones were collected from the Postojna Cave to investigate whether deoxyribonucleic acid (DNA) can be determined.
Matej Lipar   +6 more
doaj   +1 more source

Tropical cyclone genesis across palaeoclimates [PDF]

open access: yes, 2015
Abstract. Tropical cyclone genesis is investigated for the Pliocene, Last Glacial Maximum (LGM) and the mid-Holocene through analysis of five climate models. The genesis potential index is used to estimate this from large scale atmospheric properties. The mid-Pliocene and LGM characterise periods where carbon dioxide levels were higher and lower than ...
J. H. Koh, C. M. Brierley
openaire   +2 more sources

Reconstruction of the Pleistocene Paleoclimate From Deep Groundwater in Southern Germany From Noble Gas Temperatures Linked With Organic Radiocarbon Dating

open access: yesWater Resources Research
This study presents a 25 ka reconstruction of the Pleistocene paleoclimate in the South German Molasse Basin. Deep groundwater was sampled at 19 wells in the Upper Jurassic aquifer (UJA).
Theis Winter   +2 more
doaj   +1 more source

Fitting the last Pleistocene δ18O and CO2 time series with simple box models

open access: yesScientia Marina, 2012
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
doaj   +1 more source

Low-resolution Australasian palaeoclimate records of the last 2000 years

open access: yes, 2017
. Non-annually resolved palaeoclimate records in the Australasian region were compiled to facilitate investigations of decadal to centennial climate variability over the past 2000 years. A total of 675 lake and wetland, geomorphic, marine, and speleothem
Bronwyn C. Dixon   +5 more
semanticscholar   +1 more source

Reconstructing geographical boundary conditions for palaeoclimate modelling during the Cenozoic

open access: yes, 2016
. Studies on the palaeoclimate and palaeoceanography using numerical model simulations may be considerably dependent on the implemented geographical reconstruction. Because building the palaeogeographic datasets for these models is often a time-consuming
M. Baatsen   +6 more
semanticscholar   +1 more source

Orta Anadolu’daki Kılçak formasyonunun (Erken Miyosen) palinolojisi: Paleoiklimsel ve paleo-ortamsal çıkarımlar

open access: yesBulletin of the Mineral Research and Exploration, 2018
Paleovejetasyonun yeniden kurulması amacıyla, erken Miyosen yaşlı Kılçak formasyonu (Orta Anadolu, Türkiye) çökellerinin palinolojik incelemesi gerçekleştirilmiştir.
Nurdan YAVUZ, Şükrü Sinan DEMİRER
doaj   +1 more source

Identification of the Changbaishan ‘Millennium’ (B-Tm) eruption deposit in the Lake Suigetsu (SG06) sedimentary archive, Japan: Synchronisation of hemispheric-wide palaeoclimate archives

open access: yes, 2016
The B-Tm tephra, dispersed during the highly explosive Changbaishan ‘Millennium’ eruption (ca. 940–950 CE) and a key marker layer within the Greenland ice cores, has now been identified in the Lake Suigetsu (SG06) sedimentary sequence, central Japan. The
D. McLean   +5 more
semanticscholar   +1 more source

The stable isotope setting of Australopithecus sediba at Malapa, South Africa

open access: yesSouth African Journal of Science, 2016
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
doaj   +1 more source

What have we learnt from palaeoclimate simulations?

open access: yes, 2016
There has been a gradual evolution in the way that palaeoclimate modelling and palaeoenvironmental data are used together to understand how the Earth System works, from an initial and largely descriptive phase through explicit hypothesis testing to ...
S. Harrison   +2 more
semanticscholar   +1 more source

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