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Stepwise combustion analyses of distinct nitrogen isotopic compositions on Paleoproterozoic organic matter
nitrogen isotopic composition Paleoproterozoic stepwise combustion method kerogen Gunflint Formati
2017/4/11
Nitrogen isotopic analyses were conducted on two kerogenous samples from the Gunflint Formation (ca. 1.9 Ga)
using the stepwise combustion technique to evaluate a potential analytical problem for the...
Nitrogen and N-isotope variation during low-grade metamorphism of the Taiwan mountain belt
nitrogen isotope devolatilization subduction zone Taiwan
2017/8/9
To investigate factors affecting the evolution of nitrogen system in rocks during progressive metamorphism, unmetamorphosed to greenschist-facies pelitic samples were collected from both pelitic and (...
High sensitivity measurements of nitrogen isotopic ratios in coral skeletons from Palau, western Pacific: Temporal resolution and seasonal variation of nitrogen sources
coral skeleton δ15N value δ18O value δ13C value seasonal variation
2017/8/10
By using a step-wise heating method in conjunction with static vacuum mass spectrometry, we have measured at high temporal resolution (one month) the nitrogen isotopic ratio of a coral skeletal sample...
15 N Isotope Used for Study of Groundwater Nitrogen Pollution in Shijiazhuang City，China
2007/12/12
AbstractShijiazhuang City is the capital of Hebei province，China．Groundwater is the major water supply source for living and industry need of the city．Due to arapid increase of population and developm...
High-resolution profiles and nitrogen isotope tracing reveal a dominant source of nitrous oxide and multiple pathways of nitrogen gas formation in the central Arabian Sea
High-resolution profiles nitrogen isotope tracing reveal dominant source of nitrous oxide multiple pathways nitrogen gas formation in the central Arabian Sea
2014/4/22
The oxygen minimum zone (OMZ) of the Arabian Sea is a significant source of nitrous oxide (N2O), yet the metabolism responsible for N2O production is unclear. High-resolution profiles identified peaks...