572 results on '"isotope ratio"'
Search Results
2. Determining the extent of oxidation of sulfur dioxide in power plant plumes from isotopic ratio measurements. [Sampling of plumes using single-engine aircraft]
3. Fecal /sup 13/C analysis for the detection and quantitation of intestinal malabsorption
4. Oxygen isotopic composition of fissure-grown quartz, adularia, and calcite from broadlands geothermal field, New Zealand, with an appendix on quartz--K-feldspar--calcite--muscovite oxygen isotope geothermometers
5. La-Ba dating of bastnaesite
6. Comparison of procedures for reducing cross-contamination during steam distillations in nitrogen-15 tracer research
7. Caminite: a new magnesium-hydroxide-sulfate-hydrate mineral found in a submarine hydrothermal deposit, East Pacific Rise, 21/sup 0/N
8. Ion and sulfate-isotope ratios in arid soils subject to wind erosion in the southwestern USA
9. Study on effect of multiple recycling of plutonium on problem pertaining to radiation protection in a mixed oxide fuel fabrication plant (synthesis report)
10. Resonance ionization mass spectrometry for materials analysis and characterization
11. Energetics of silicate melts from thermal diffusion studies
12. Rangeland -- Plant responses to elevated CO sub 2
13. Isotope tracer studies of diffusion in silicates and of geological transport processes using actinide elements
14. Hydrogeochemical studies of the Rustler Formation and related rocks in the Waste Isolation Pilot Plant Area, Southeastern New Mexico
15. Composition of phytoplankton communities and their contribution to secondary productivity in Carolina Bays on the Savannah River Plant
16. RESOLVING THE CO SNOW LINE IN THE DISK AROUND HD 163296
17. First observation of {alpha} decay of {sup 190}Pt to the first excited level (E{sub exc}=137.2 keV) of {sup 186}Os
18. COORDINATED ANALYSES OF PRESOLAR GRAINS IN THE ALLAN HILLS 77307 AND QUEEN ELIZABETH RANGE 99177 METEORITES
19. AUTOMATED NanoSIMS MEASUREMENTS OF SPINEL STARDUST FROM THE MURRAY METEORITE
20. ON THE NEED FOR DEEP-MIXING IN ASYMPTOTIC GIANT BRANCH STARS OF LOW MASS
21. AN INVESTIGATION INTO THE ORIGIN OF Fe-RICH PRESOLAR SILICATES IN ACFER 094
22. OXYGEN ISOTOPIC COMPOSITIONS OF SOLAR CORUNDUM GRAINS
23. Infrared absorption of GeNNO isolated in solid Ar
24. Measurement of the /sup 129/I//sup 131/I ratio in Chernobyl fallout
25. Carbon dioxide effects research and assessment program. Proceedings of the International Meeting on Stable Isotopes in Tree-Ring Research, New Paltz, New York, May 22-25, 1979
26. Lead isotopes as indicators of environmental contamination from the uranium mining and milling industry in the Grants Mineral Belt, New Mexico
27. Determination of B and Li in nuclear materials by secondary-ion mass spectrometry
28. Carbon dioxide effects research and assessment program: flux of organic carbon by rivers to the oceans. [Lead abstract]
29. Determination of plutonium isotopic composition by gamma-ray spectroscopy
30. Geochemistry of Delaware Basin groundwaters
31. Stable isotope ratio measurements in atmospheric sulfate studies
32. Physical and chemical characteristics of Mt. St. Helens airborne debris
33. Characterization of consistent NDA (nondestructive assay) standards
34. Pu-content verification by calorimetry
35. Geochemical evidence of natural recharge in Larderello and Castelnuovo areas
36. Problems of trace element ratios and geothermometry in a gravel geothermal-aquifer system
37. Dynamics of a geothermal field traced by noble gases: Cerro Prieto, Mexico
38. Geochemistry of geopressured geothermal waters from the Texas Gulf Coast
39. Calibration and testing or models of the global carbon cycle
40. Ground-water flow and recharge in the Mahomet Bedrock Valley Aquifer, east-central Illinois: A conceptual model based on hydrochemistry
41. Radium isotope geochemistry of thermal waters, Yellowstone National Park, Wyoming, USA
42. Geochemistry of Precambrian carbonates: IV. Early Paleoproterozoic (2. 25 + 0. 25 Ga) seawater
43. Laser analysis of the {sup 13}C/{sup 12}C isotope ratio in CO{sub 2} in exhaled air
44. Laser microprobe analyses of noble gas isotopes and halogens in fluid inclusions: Analyses of microstandards and synthetic inclusions in quartz
45. Paleoclimatology
46. Carbon isotope techniques
47. Magmatic zonation of the Kurile Island Arc
48. Water/rock interaction efficiency and seawater dolomitization in the Eocene Avon Park Formation, Floridan Aquifer
49. Stable oxyten and carbon isotope study of recent sediments and cements, Lee Stocking island, Bahamas: Organic vs. inorganic precipitation
50. Fine-scale structure of the seawater strontium isotope curve at the Cretaceous/Tertiary boundary
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