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Global Climate and Sea Level:Enduring Variability and Rapid Fluctuations Over the Past 150,000 Years
Global Climate Sea Level Enduring Variability Rapid Fluctuations Past 150,000 Years
2015/7/9
Although climate variations and sea level changes are often discussed interchangeably, climate change need not always result in sea level change. Perturbations in Earth's orbit cause major climate cha...
Exploring Isotopic Signatures of Lake El'gygytgyn Sediments for Evidence of Anoxia and Methane Cycling over the Past 50,000 Years
Exploring Isotopic Signatures Lake El'gygytgyn Sediments Evidence of Anoxia and Methane Cycling over the Past 50,000 Years
2014/10/21
Compound specific isotope analysis of lake sediments is a powerful tool in deciphering evidence of changing climatic and paleoenvironmental conditions through time. Isotopic analysis of Lake El’gygytg...
Th-normalized fluxes of biogenic components from the central and southernmost Chilean margin over the past 22,000 years
biological pump paleoproductivity thorium 230 (230Th) southern westerlies Chile
2017/4/11
We report on 230Th-normalized fluxes of biogenic components—total organic carbon (TOC), total nitrogen (TN),
calcium carbonate (CaCO3), and biogenic opal (SiOPAL)—from two sediment cores collected at...
Haplogroup R1a, Its Subclades and Branches in Europe During the Last 9,000 Years
Y Chromosome Mutations Haplotypes Haplogroups TMRCA STR SNP R1a1
2013/1/31
This study identifies and describes 38 branches of the haplogroup R1a STR haplotypes which currently exist in Europe or which migrated from Europe to areas in the east, south, and southeast between 60...
Time-variability in the Interstellar Boundary Conditions of the Heliosphere over the past 60,000 years: Impact of the Solar Journey on the Galactic Cosmic Ray Flux at Earth
Time-variability the Interstellar Boundary Conditions
2011/1/10
During the solar journey through galactic space, variations in the physical properties of the surrounding interstellar material (ISM) modify the heliosphere and modulate the flux of galactic cosmic ra...
Stable isotope records for the last 10 000 years from Okshola cave (Fauske, northern Norway) and regional comparisons
Stable isotope last 10 000 years Okshola cave
2009/12/3
The sensitivity of terrestrial environments to past changes in heat transport is expected to be manifested in Holocene climate proxy records on millennial to seasonal timescales. Stalagmite formation...
Rapid climatic variability in the west Mediterranean during the last 25 000 years from high resolution pollen data
climatic variability High-temporal resolution pollen west Mediterranean
2009/12/3
High-temporal resolution pollen record from the Alboran Sea ODP Site 976, pollen-based quantitative climate reconstruction and biomisation show that changes of Mediterranean vegetation have been clear...
Millennial-scale climatic variability between 340 000 and 270 000 years ago in SW Europe：evidence from a NW Iberian margin pollen sequence
climatic variability Marine Isotope Stage SW Europe
2009/12/3
We present a new high-resolution marine pollen record from NW Iberian margin sediments (core MD03-2697) covering the interval between 340 000 and 270 000 years ago, a time period centred on Marine I...
A comparative cephalometric investigation of the Greek craniofacial pattern through 4,000 years
Craniofacial morphology Cephalometric analysis Greek Racial characteristics Genetic affinity
2009/1/23
A comparative cephalometric investigation was conducted between modem and ancient Greeks to determine craniofacial characteristics and to examine the significance of ethnic heritage. The modem sampl...
Comparing transient, accelerated, and equilibrium simulations of the last 30 000 years with the GENIE-1 model
GENIE-1 model
2008/11/11
We examine several aspects of the ocean-atmosphere system over the last 30 000 years, by carrying out simulations with prescribed ice sheets, atmospheric CO2 concentration, and orbital parameters.
Simulating low frequency changes in atmospheric CO2 during the last 740 000 years
low frequency changes atmospheric CO2
2008/11/11
Atmospheric CO2 measured in Antarctic ice cores shows a natural variability of 80 to 100 ppmv during the last four glacial cycles and variations of approximately 60 ppmv in the two cycles between 410 ...
Comparing transient, accelerated, and equilibrium simulations of the last 30 000 years with the GENIE-1 model
Atlantic Meridional Overturning Circulation GENIE-1 model equilibrium simulations
2008/11/11
We examine several aspects of the ocean-atmosphere system over the last 30 000 years, by carrying out simulations with prescribed ice sheets, atmospheric CO2 concentration, and orbital parameters. We ...
Simulating low frequency changes in atmospheric CO2 during the last 740 000 years
low frequency frequency changes atmospheric CO2
2008/11/10
Atmospheric CO2 measured in Antarctic ice cores shows a natural variability of 80 to 100 ppmv during the last four glacial cycles and variations of approximately 60 ppmv in the two cycles between 410 ...
“EDML1”：a chronology for the EPICA deep ice core from Dronning Maud Land, Antarctica, over the last 150 000 years
EPICA Dronning Maud Land Antarctica
2008/11/5
A chronology called EDML1 has been developed for the EPICA ice core from Dronning Maud Land (EDML). EDML1 is closely interlinked with EDC3, the new chronology for the EPICA ice core from Dome-C (EDC) ...
Modeling variations of marine reservoir ages during the last 45 000 years
marine reservoir ages modeling variations
2008/10/30
When dating marine samples with 14C, the reservoir-age effect is usually assumed to be constant, although atmospheric 14C production rate and ocean circulation changes cause temporal and spatial rese...