scholarly journals The stable oxygen isotope ratio of resin extractable phosphate derived from fresh cattle faeces

2018 ◽  
Vol 32 (9) ◽  
pp. 703-710 ◽  
Author(s):  
Steven J. Granger ◽  
Yuguo Yang ◽  
Verena Pfahler ◽  
Chris Hodgson ◽  
Andrew C. Smith ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Isotope Ratio ◽  
Oxygen Isotope Ratio ◽  
Stable Oxygen Isotope ◽  
Stable Oxygen ◽  
Cattle Faeces

Rapid Method for the Determination of the Stable Oxygen Isotope Ratio of Water in Alcoholic Beverages

2015 ◽  
Vol 63 (42) ◽  
pp. 9357-9362 ◽  
Author(s):  
Daobing Wang ◽  
Qiding Zhong ◽  
Guohui Li ◽  
Zhanbin Huang
Keyword(s):  
Oxygen Isotope ◽  
Rapid Method ◽  
Isotope Ratio ◽  
Alcoholic Beverages ◽  
Oxygen Isotope Ratio ◽  
Stable Oxygen Isotope ◽  
Stable Oxygen

scholarly journals Surface Mass-Balance Variability Near “Byrd” Station, Antarctica, and its Importance to Ice Core Stratigraphy

1978 ◽  
Vol 20 (83) ◽  
pp. 301-310 ◽  
Author(s):  
I. M. Whillans
Keyword(s):  
Mass Balance ◽  
Oxygen Isotope ◽  
Isotope Ratio ◽  
Snow Accumulation ◽  
Surface Mass Balance ◽  
Oxygen Isotope Ratio ◽  
Surface Microrelief ◽  
Stable Oxygen Isotope ◽  
Surface Mass ◽  
Stable Oxygen

AbstractThe local variability in surface mass balance (net snow accumulation) up-glacier from "Byrd" station, Antarctica, is due to the combined effects of year-to-year "climate" variations and of the surface microrelief clue to snow drifts and sastrugi. These variabilities are consistent with the variability in surface mass balance obtained from core stratigraphy (Gow, 1968), and are used in a discussion of the difficulties encountered with the deep "Byrd" station core in detecting annual layering by the stable oxygen-isotope ratio and the microparticle concentration techniques. The recognition of annual layers by these techniques requires that the snows of certain seasons be present in the measured section, but near "Byrd" station the microrclief is such that summer snow layers are not horizontally continuous and may be absent from a given section. At other sites on ice sheets, where the microrelief is less (less wind activity) or where the surface mass balance is larger, or both, less difficulty is anticipated in using the stable oxygen-isotope ratio and micro-particle-concentration techniques to identify annual layers.

scholarly journals Surface Mass-Balance Variability Near “Byrd” Station, Antarctica, and its Importance to Ice Core Stratigraphy

1978 ◽  
Vol 20 (83) ◽  
pp. 301-310 ◽  
Author(s):  
I. M. Whillans
Keyword(s):  
Mass Balance ◽  
Oxygen Isotope ◽  
Isotope Ratio ◽  
Snow Accumulation ◽  
Surface Mass Balance ◽  
Oxygen Isotope Ratio ◽  
Surface Microrelief ◽  
Stable Oxygen Isotope ◽  
Surface Mass ◽  
Stable Oxygen

AbstractThe local variability in surface mass balance (net snow accumulation) up-glacier from "Byrd" station, Antarctica, is due to the combined effects of year-to-year "climate" variations and of the surface microrelief clue to snow drifts and sastrugi. These variabilities are consistent with the variability in surface mass balance obtained from core stratigraphy (Gow, 1968), and are used in a discussion of the difficulties encountered with the deep "Byrd" station core in detecting annual layering by the stable oxygen-isotope ratio and the microparticle concentration techniques. The recognition of annual layers by these techniques requires that the snows of certain seasons be present in the measured section, but near "Byrd" station the microrclief is such that summer snow layers are not horizontally continuous and may be absent from a given section. At other sites on ice sheets, where the microrelief is less (less wind activity) or where the surface mass balance is larger, or both, less difficulty is anticipated in using the stable oxygen-isotope ratio and micro-particle-concentration techniques to identify annual layers.

scholarly journals Seasonal variations in the stable oxygen isotope ratio of wood cellulose reveal annual rings of trees in a Central Amazon terra firme forest

Oecologia ◽  
2015 ◽  
Vol 180 (3) ◽  
pp. 685-696 ◽  
Author(s):  
Shinta Ohashi ◽  
Flávia M. Durgante ◽  
Akira Kagawa ◽  
Takuya Kajimoto ◽  
Susan E. Trumbore ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Seasonal Variations ◽  
Isotope Ratio ◽  
Annual Rings ◽  
Oxygen Isotope Ratio ◽  
Wood Cellulose ◽  
Terra Firme ◽  
Stable Oxygen Isotope ◽  
Stable Oxygen ◽  
Terra Firme Forest

scholarly journals Temperature versus species-specific influences on the stable oxygen isotope ratio of tree rings

Trees ◽  
2009 ◽  
Vol 23 (4) ◽  
pp. 801-811 ◽  
Author(s):  
Christina E. Reynolds-Henne ◽  
Matthias Saurer ◽  
Rolf T. W. Siegwolf
Keyword(s):  
Oxygen Isotope ◽  
Tree Rings ◽  
Isotope Ratio ◽  
Oxygen Isotope Ratio ◽  
Stable Oxygen Isotope ◽  
Stable Oxygen ◽  
Species Specific

scholarly journals Accumulation-rate variations around Summit, Greenland

1994 ◽  
Vol 40 (134) ◽  
pp. 56-66 ◽  
Author(s):  
John F. Bolzan ◽  
Michael Strobel
Keyword(s):  
Oxygen Isotope ◽  
Isotope Ratio ◽  
Annual Variation ◽  
Accumulation Rate ◽  
Moisture Flux ◽  
Accumulation Rates ◽  
Oxygen Isotope Ratio ◽  
Stable Oxygen ◽  
Gross Β ◽  
Annual Summer

AbstractShallow cores to about 17 m depth were recovered at nine sites distributed on a 150 km × 150 km survey grid centered Summit in central Greenland. Measurements of the stable oxygen-isotope ratio and the gross β activity as a function of depth enable annual summer horizons to be identified and dated. From these data, average accumulation rates were computed with an uncertainty of about 5–8%. The contours of constant accumulation rate in the region suggest a primary moisture flux from the southwest of the grid. Similarly, contours of the average oxygen-isotope ratio are consistent with the progressive isotopic depletion of a precipitating air mass moving from the southwest, and automatic weather-station data indicate that the moisture flux tends to be largest from the southwest quadrant. The annual variation in the total accumulation over the grid shows no persistent trend over the interval 1964–87 common to all cores.

scholarly journals Accumulation-rate variations around Summit, Greenland

1994 ◽  
Vol 40 (134) ◽  
pp. 56-66 ◽  
Author(s):  
John F. Bolzan ◽  
Michael Strobel
Keyword(s):  
Oxygen Isotope ◽  
Isotope Ratio ◽  
Annual Variation ◽  
Accumulation Rate ◽  
Moisture Flux ◽  
Accumulation Rates ◽  
Oxygen Isotope Ratio ◽  
Stable Oxygen ◽  
Gross Β ◽  
Annual Summer

AbstractShallow cores to about 17 m depth were recovered at nine sites distributed on a 150 km × 150 km survey grid centered Summit in central Greenland. Measurements of the stable oxygen-isotope ratio and the gross β activity as a function of depth enable annual summer horizons to be identified and dated. From these data, average accumulation rates were computed with an uncertainty of about 5–8%. The contours of constant accumulation rate in the region suggest a primary moisture flux from the southwest of the grid. Similarly, contours of the average oxygen-isotope ratio are consistent with the progressive isotopic depletion of a precipitating air mass moving from the southwest, and automatic weather-station data indicate that the moisture flux tends to be largest from the southwest quadrant. The annual variation in the total accumulation over the grid shows no persistent trend over the interval 1964–87 common to all cores.

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