scholarly journals Conbined noble gas and stable isotope constraints on nitrogen gas sources within sedimentary basins. Final report for period 15 March 1996 - 14 March 1999 extended to 14 March 2000

2001 ◽  
Author(s):  
C.J. Ballentine ◽  
Alexander N. Halliday ◽  
B. Sherwood Lollar
Keyword(s):  
Stable Isotope ◽  
Noble Gas ◽  
Sedimentary Basins ◽  
Final Report ◽  
Nitrogen Gas

scholarly journals Stable isotope, noble gas, and forward modelling insights into the fate of volatiles subducted along the Hikurangi Margin, New Zealand

2021 ◽  
Author(s):  
Gabe Epstein ◽  
Bruce Christenson ◽  
Gray E. Bebout ◽  
Hirochika Sumino ◽  
Ikuko Wada ◽  
...  
Keyword(s):  
New Zealand ◽  
Stable Isotope ◽  
Noble Gas ◽  
Forward Modelling

scholarly journals Earth’s Dynamic Past Revealed by Detrital Thermochronometry

Elements ◽  
2020 ◽  
Vol 16 (5) ◽  
pp. 311-317 ◽  
Author(s):  
Daniel F. Stockli ◽  
Yani M. R. Najman
Keyword(s):  
Landscape Evolution ◽  
Noble Gas ◽  
Sedimentary Basins ◽  
Sediment Source ◽  
Transfer Rates ◽  
Sedimentary Provenance ◽  
Lag Times ◽  
Unique Ability ◽  
Source And Sink

A dvances in detrital noble gas thermochronometry by 40Ar/39Ar and (U–Th)/He dating are improving the resolution of sedimentary provenance reconstructions and are providing new insights into the evolution of Earth’s surface. Detrital thermochronometry has the ability to quantify tectonic unroofing or erosion, temporal and dynamic connections between sediment source and sink, sediment lag-times and transfer rates, the timing of deposition, and postdepositional burial heating. Hence, this technique has the unique ability to use the detrital record in sedimentary basins to reconstruct Earth’s dynamic long-term landscape evolution and how basins are coupled to their hinterlands.

Atmosphere-derived noble gas evidence for the preservation of ancient waters in sedimentary basins

Geology ◽  
1997 ◽  
Vol 25 (2) ◽  
pp. 111 ◽  
Author(s):  
Daniele L. Pinti ◽  
Bernard Marty ◽  
John N. Andrews
Keyword(s):  
Noble Gas ◽  
Sedimentary Basins

Noble gas and stable isotope geochemistry of thermal fluids from Deception Island, Antarctica

2009 ◽  
Vol 21 (3) ◽  
pp. 255-267 ◽  
Author(s):  
Minoru Kusakabe ◽  
Keisuke Nagao ◽  
Takeshi Ohba ◽  
Jung Hun Seo ◽  
Sung-Hyun Park ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Hydrothermal System ◽  
Hot Spring ◽  
Isotope Geochemistry ◽  
Noble Gas ◽  
Deception Island ◽  
Rock Interaction ◽  
Thermal Fluids ◽  
Back Arc ◽  
Fumarolic Gas

AbstractNew stable isotope and noble gas data obtained from fumarolic and bubbling gases and hot spring waters sampled from Deception Island, Antarctica, were analysed to constrain the geochemical features of the island's active hydrothermal system and magmatism in the Bransfield back-arc basin. The 3He/4He ratios of the gases (< 9.8 × 10-6), which are slightly lower than typical MORB values, suggest that the Deception Island magma was generated in the mantle wedge of a MORB-type source but the signature was influenced by the addition of radiogenic 4He derived from subducted components in the former Phoenix Plate. The N2/He ratios of fumarolic gas are higher than those of typical mantle-derived gases suggesting that N2 was added during decomposition of sediments in the subducting slab. The δ13C values of -5 to -6‰ for CO2 also indicate degassing from a MORB-type mantle source. The H2/Ar- and SiO2 geothermometers indicate that the temperatures in the hydrothermal system below Deception Island range from ~150°C to ~300°C. The δD and δ18O values measured from fumarolic gas and hot spring waters do not indicate any contribution of magmatic water to the samples. The major ionic components and δD-δ18O-δ34S values indicate that hot spring waters are a mixture of local meteoric water and seawater. Mn and SiO2 in spring waters were enriched relative to seawater reflecting water-rock interaction at depth.

Groundwater sources in the Island of Maui, Hawaii — A combined noble gas, stable isotope, and tritium approach

2020 ◽  
Vol 117 ◽  
pp. 104587
Author(s):  
Yi Niu ◽  
M. Clara Castro ◽  
Chris M. Hall ◽  
Christopher J. Poulsen ◽  
Kyger C. Lohmann ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Noble Gas

scholarly journals NOBLE GAS CONFINEMENT STUDY. VOLUME II. CRYOGENIC POROUS MEDIA BED. FINAL REPORT, FY-1970.

1971 ◽  
Author(s):  
J. E. Mecca ◽  
J. D. Ludwick ◽  
E. L. Etheridge
Keyword(s):  
Porous Media ◽  
Noble Gas ◽  
Final Report

Upcoming food matrix stable isotope reference materials from the USGS: honeys, vegetable oils, flours, and collagens

2020 ◽  
Author(s):  
Nives Ogrinc ◽  
Arndt Schimmelmann ◽  
Haiping Qi ◽  
Federica Camin ◽  
Luana Bontempo ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Vegetable Oils ◽  
Reference Materials ◽  
Noble Gas ◽  
Stable Isotope Ratio ◽  
Organic Liquids ◽  
Multiple Point ◽  
Food Matrix ◽  
Consensus Values ◽  
Analytical Approaches

&lt;p&gt;An international project developed, quality-tested, and measured isotope&amp;#8722;delta values of 10 new food matrix reference materials (RMs) for hydrogen, carbon, nitrogen, oxygen, and sulfur stable isotope-ratio measurements to support food authenticity testing and food provenance verification. These new RMs will enable users to normalize measurements of samples to isotope&amp;#8722;delta scales. The RMs span a range of &amp;#948;&lt;sup&gt;2&lt;/sup&gt;H&lt;sub&gt;VSMOW&lt;/sub&gt; values from &amp;#8722;207.4 to &amp;#8722;43.3 mUr or &amp;#8240;, for &amp;#948;&lt;sup&gt;13&lt;/sup&gt;C&lt;sub&gt;VPDB&lt;/sub&gt; from &amp;#8722;30.60 to &amp;#8722;13.72 mUr, for &amp;#948;&lt;sup&gt;15&lt;/sup&gt;N&lt;sub&gt;air&lt;/sub&gt; from +1.78 to +14.96 mUr, for &amp;#948;&lt;sup&gt;18&lt;/sup&gt;O&lt;sub&gt;VSMOW&lt;/sub&gt; from +18.20 to +26.33 mUr, and for &amp;#948;&lt;sup&gt;34&lt;/sup&gt;S&lt;sub&gt;VCDT&lt;/sub&gt; from &amp;#8722;20.25 to +17.49 mUr. The RMs include (i) a pair of honeys from Canada and tropical Vietnam, (ii) flours from C3 (rice) and C4 (millet) plants, (iii) four vegetable oils from C3 (olive, peanut) and C4 (corn) plants, and (iv) collagen powders from marine fish and terrestrial mammal origins. After thorough homogenization of the bulk materials, multiple aliquots were sealed in glass under vacuum or noble gas to exclude oxygen and to potentially extend the shelf life to decades when stored at &amp;#8211;18 &amp;#176;C in the dark. A total of six laboratories from five countries used various analytical approaches and instrumentation for two- or multiple-point isotopic normalization against international RMs. The use of reference waters and organic liquids in silver tubes allowed direct normalization of &amp;#948;&lt;sup&gt;2&lt;/sup&gt;H values of organic materials against isotopic reference waters following the principle of identical treatment, minimizing interference from atmospheric moisture. An errors-in-variables regression model that included the uncertainty associated with the measured and assigned values of the RMs was applied centrally to normalize results and obtain consensus values and measurement uncertainties reported here for new RMs USGS82 to USGS91. Because of exchangeable hydrogen and H&lt;sub&gt;2&lt;/sub&gt;O in some RMs (especially in honeys, collagens, and flours), sample loading in contact with laboratory air and different types of pre-treatment can result in significant bulk &amp;#948;&lt;sup&gt;2&lt;/sup&gt;H variance. Utilization of these new RMs should foster mutual compatibility of &amp;#948;&lt;sup&gt;2&lt;/sup&gt;H values if harmonized technical/analytical approaches are followed and documented in data reports.&lt;/p&gt;

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