Excess methane in Greenland ice cores associated with high dust concentrations
Sign Up to like & getrecommendations! Published in 2020 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2019.11.020
Abstract: Abstract Ice core records of atmospheric methane ( CH 4 ) and its isotopic composition provide important information about biogeochemical cycles in the past. Interpreting these data requires that they faithfully record the composition of… read more here.
Keywords: dust concentrations; ice cores; methane; ice core ... See more keywords
Detection of the sul2-strA-strB gene cluster in an ice core from Dome Fuji Station, East Antarctica.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of global antimicrobial resistance"
DOI: 10.1016/j.jgar.2018.11.005
Abstract: OBJECTIVES Bacteria harbouring antimicrobial resistance genes (ARGs) have been isolated from various locations, including ancient microbiomes, indicating that these genes pre-date the discovery of antibiotics. To gain further information regarding ARGs in the pre-antibiotic era,… read more here.
Keywords: ice core; gene; stra strb; gene cluster ... See more keywords
Algal biomarkers as a proxy for pCO2: Constraints from late quaternary sapropels in the eastern Mediterranean
Sign Up to like & getrecommendations! Published in 2020 at "Organic Geochemistry"
DOI: 10.1016/j.orggeochem.2020.104123
Abstract: Abstract Records of carbon dioxide concentrations (partial pressure expressed as pCO2) over Earth’s history provide trends that are critical to understand our changing world. To better constrain pCO2 estimations, here we test organic pCO2 proxies… read more here.
Keywords: core values; ice core; carbon; eastern mediterranean ... See more keywords
An extension of the TALDICE ice core age scale reaching back to MIS 10.1
Sign Up to like & getrecommendations! Published in 2021 at "Quaternary Science Reviews"
DOI: 10.1016/j.quascirev.2021.107078
Abstract: Abstract TALDICE (TALos Dome Ice CorE) is a 1620 m deep ice core drilled at Talos Dome, an ice dome located at the edge of the East Antarctic Plateau in the Ross Sea Sector. The Antarctic… read more here.
Keywords: ice core; age scale; ice;
Instruments and methods: a case study of ice core bubbles as strain indicators
Sign Up to like & getrecommendations! Published in 2018 at "Annals of Glaciology"
DOI: 10.1017/aog.2018.23
Abstract: Abstract Measurements of a sample from ~580 m depth in the WAIS Divide (WDC06A) ice core reveal that bubbles are preferentially elongated in the basal plane of their parent grain, as expected if bubble shape… read more here.
Keywords: instruments methods; bubbles strain; deformation; ice core ... See more keywords
A stratigraphy-based method for reconstructing ice core orientation
Sign Up to like & getrecommendations! Published in 2020 at "Annals of Glaciology"
DOI: 10.1017/aog.2020.76
Abstract: Ever since the first deep ice cores were drilled, it has been a challenge to determine their original, in-situ orientation. In general, the orientation of an ice core is lost as the drill is free… read more here.
Keywords: orientation; method; stratigraphy; ice core ... See more keywords
Core handling, transportation and processing for the South Pole ice core (SPICEcore) project
Sign Up to like & getrecommendations! Published in 2020 at "Annals of Glaciology"
DOI: 10.1017/aog.2020.80
Abstract: Abstract An intermediate-depth (1751 m) ice core was drilled at the South Pole between 2014 and 2016 using the newly designed US Intermediate Depth Drill. The South Pole ice core is the highest-resolution interior East… read more here.
Keywords: pole ice; core handling; ice core; south pole ... See more keywords
Mapping the suitability for ice-core drilling of glaciers in the European Alps and the Asian High Mountains
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Glaciology"
DOI: 10.1017/jog.2017.75
Abstract: ABSTRACT Ice cores from mid-latitude mountain glaciers provide detailed information on past climate conditions and regional environmental changes, which is essential for placing current climate change into a longer term perspective. In this context, it… read more here.
Keywords: asian high; drilling; high mountains; ice core ... See more keywords
Air reverse circulation at the hole bottom in ice-core drilling
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Glaciology"
DOI: 10.1017/jog.2018.95
Abstract: Ice-core drilling to depths of 200–300 m is an important part of research studies concerned with paleoclimate reconstruction and anthropogenic climate change. However, conventional drilling methods face difficulties due to firn permeability. We have developed… read more here.
Keywords: ice core; core drilling; drilling; air reverse ... See more keywords
Reassessment of the Upper Fremont Glacier Ice-Core Chronologies by Synchronizing of Ice-Core-Water Isotopes to a Nearby Tree-Ring Chronology.
Sign Up to like & getrecommendations! Published in 2017 at "Environmental science & technology"
DOI: 10.1021/acs.est.6b06574
Abstract: The Upper Fremont Glacier (UFG), Wyoming, is one of the few continental glaciers in the contiguous United States known to preserve environmental and climate records spanning recent centuries. A pair of ice cores taken from… read more here.
Keywords: upper fremont; fremont glacier; chronology; ice core ... See more keywords
High-Precision Measurement of N2O Concentration in Ice Cores.
Sign Up to like & getrecommendations! Published in 2018 at "Environmental science & technology"
DOI: 10.1021/acs.est.7b05250
Abstract: Atmospheric nitrous oxide (N2O) is a greenhouse gas and ozone-depleting substance whose emissions are substantially perturbed by current human activities. Although air trapped in polar ice cores can provide direct information about N2O evolution, analytical… read more here.
Keywords: ice; high precision; ice cores; ice core ... See more keywords