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Article
Open AccessIntegrating the controlled evaporation mixer with cavity ring-down spectroscopy for enhanced water vapor isotope calibration
Accurate measurement of water vapor isotopes (δ18O and δ2H) is fundamental for advancing our understanding of the hydrological cycle and improving hydrological model accuracy. This study introduces an innovative ...
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Article
An optimal strategy for determining triple oxygen isotope ratios in natural water using a commercial cavity ring-down spectrometer
Triple oxygen isotope ratios have been increasingly acknowledged as useful hydrological tracers but measuring both 17O/16O and 18O/16O ratios with meaningful precision has been challenging due to the much lower n...
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Article
Glaciers as microbial habitats: current knowledge and implication
Glaciers, formed from the gradual accumulation of snow, can be continuous records representing past environments and recognized as a time capsule of our planetary evolution. Due to extremely harsh conditions, ...
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Article
Open AccessHigh-resolution isotopic evidence for a potential Saharan provenance of Greenland glacial dust
Dust concentrations in Greenland ice show pronounced glacial/interglacial variations with almost two orders of magnitude increase during the Last Glacial Maximum. Greenland glacial dust was previously sourced ...
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Article
Evidence of air-snow mercury exchange recorded in the snowpack at Dome Fuji, Antarctica
Measuring the mercury content in shallow Antarctic snow pits is useful for understanding the mercury dynamics of the Antarctic Plateau and the global mercury cycle and for interpreting ice core data. We determ...
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Article
Atmospheric pollution indicated by trace elements in snow from the northern slope of Cho Oyu range, Himalayas
Samples collected from a 0.87 m snow pit at a high altitude site in the Cho Oyu range, Himalayas were measured for V, Cr, Mn, Co, Ni, Cu, Zn, As, Rb, Sr, Cd, Sn, Sb, Ba, Tl, Pb, Bi, Th, and U using inductively...
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Article
Hydrothermal alteration and isotopic variations of igneous rocks in Barton Peninsula, King George Island, Antarctica
O, H, S and Sr isotopes were investigated to characterize the nature of hydrothermal fluids and alteration processes in volcanic and intrusive rocks in Barton Peninsula, King George Island. The oxygen and hydr...
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Article
Climate-related variations in crustal trace elements in Dome C (East Antarctica) ice during the past 672 kyr
Cr, Fe, Rb, Ba and U were determined by inductively coupled plasma sector field mass spectrometry (ICP-SFMS) in various sections of the 3,270 m deep ice core recently drilled at Dome C on the high East Antarct...
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Article
Glacier extent and volume change (1966∼2000) on the Su-lo Mountain in northeastern Tibetan Plateau, China
The topographic maps of 1:50, 000 scales, aerial photographs taken in 1966, one Landsat image taken in 1999, and SRTM data from 2000 were used to quantify the losses in area and volume of the glaciers on the S...
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Article
Origin of E-MORB in a fossil spreading center: the Antarctic-Phoenix Ridge, Drake Passage, Antarctica
The fossilized Antarctic-Phoenix Ridge (APR) with three segments (P1, P2, and P3), Drake Passage, is distant from the known hotspots, and consists of older N-MORB formed prior to the extinction of spreading an...
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Article
Geochemistry of volcanic rocks in Barton and Weaver peninsulas, King George Island, Antarctica: Implications for arc maturity and correlation with fossilized volcanic centers
We investigated geochemical characteristics of the Paleocene-Eocene volcanic rocks in Barton and Weaver peninsulas, King George Island, Antarctica. Volcanic rocks are predominantly tholeiitic, and show geochem...