Microbial Isotopic Fractionation of Perchlorate Chlorine

ABSTRACT Perchlorate contamination can be microbially respired to innocuous chloride and thus can be treated effectively. However, monitoring a bioremediative strategy is often difficult due to the complexities of environmental samples. Here we demonstrate that microbial respiration of perchlorate results in a significant fractionation (∼−15‰) of the chlorine stable isotope composition of perchlorate. This can be used to quantify the extent of biotic degradation and to separate biotic from abiotic attenuation of this contaminant.

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Chlorine stable isotope composition of granulites from Lofoten, Norway: Implications for the Cl isotopic composition and for the source of Cl enrichment in the lower crust

Earth and Planetary Science Letters ◽

10.1016/s0012-821x(97)00084-8 ◽

1997 ◽

Vol 150 (1-2) ◽

pp. 95-102 ◽

Cited By ~ 20

Author(s):

Gregor Markl ◽

Masaaki Musashi ◽

Kurt Bucher

Keyword(s):

Stable Isotope ◽

Isotopic Composition ◽

Lower Crust ◽

Isotope Composition ◽

Stable Isotope Composition ◽

Chlorine Stable Isotope

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Chlorine stable isotope composition of the oceanic crust: Implications for Earth's distribution of chlorine

Earth and Planetary Science Letters ◽

10.1016/0012-821x(95)00017-7 ◽

1995 ◽

Vol 131 (3-4) ◽

pp. 427-432 ◽

Cited By ~ 97

Author(s):

Andrew J. Magenheim ◽

Arthur J. Spivack ◽

Peter J. Michael ◽

Joris M. Gieskes

Keyword(s):

Stable Isotope ◽

Oceanic Crust ◽

Isotope Composition ◽

Stable Isotope Composition ◽

Chlorine Stable Isotope

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Isotopic fractionation of zirconium during magmatic differentiation and the stable isotope composition of the silicate Earth

Geochimica et Cosmochimica Acta ◽

10.1016/j.gca.2019.02.010 ◽

2019 ◽

Vol 250 ◽

pp. 311-323 ◽

Cited By ~ 12

Author(s):

Edward C. Inglis ◽

Frédéric Moynier ◽

John Creech ◽

Zhengbin Deng ◽

James M.D. Day ◽

...

Keyword(s):

Stable Isotope ◽

Isotope Composition ◽

Isotopic Fractionation ◽

Stable Isotope Composition ◽

Magmatic Differentiation

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An online method to determine chlorine stable isotope composition by continuous flow isotope ratio mass spectrometry (CF-IRMS) coupled with a Gasbench II

Journal of Central South University ◽

10.1007/s11771-013-1476-0 ◽

2013 ◽

Vol 20 (1) ◽

pp. 193-198 ◽

Cited By ~ 14

Author(s):

Yun-de Liu ◽

Ai-guo Zhou ◽

Yi-qun Gan ◽

Cun-fu Liu ◽

Ting-ting Yu ◽

...

Keyword(s):

Mass Spectrometry ◽

Stable Isotope ◽

Continuous Flow ◽

Isotope Ratio ◽

Isotope Composition ◽

Isotope Ratio Mass Spectrometry ◽

Stable Isotope Composition ◽

Chlorine Stable Isotope

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BASIN TCP STABLE ISOTOPE COMPOSITION OF CO2 IN TERRESTRIAL ECOSYSTEMS

ORNL Distributed Active Archive Center Datasets ◽

10.3334/ornldaac/963 ◽

2010 ◽

Author(s):

C.T. LAI, ◽

J.R. EHLERINGER,

Keyword(s):

Stable Isotope ◽

Isotope Composition ◽

Terrestrial Ecosystems ◽

Stable Isotope Composition

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Ontogenetic trends in resource partitioning and trophic geography of sympatric skates (Rajidae) inferred from stable isotope composition across eye lenses

Marine Ecology Progress Series ◽

10.3354/meps13030 ◽

2019 ◽

Vol 624 ◽

pp. 103-116 ◽

Cited By ~ 5

Author(s):

SJ Simpson ◽

DW Sims ◽

CN Trueman

Keyword(s):

Stable Isotope ◽

Resource Partitioning ◽

Isotope Composition ◽

Stable Isotope Composition

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Determining the stable isotope composition of porewater using low temperature multi-step extraction for low water content soils

Journal of Hydrology ◽

10.1016/j.jhydrol.2021.126079 ◽

2021 ◽

Vol 596 ◽

pp. 126079

Author(s):

Sanyuan Jiang ◽

Wenbo Rao ◽

Liangfeng Han

Keyword(s):

Stable Isotope ◽

Low Temperature ◽

Water Content ◽

Isotope Composition ◽

Stable Isotope Composition

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Multi-regression analysis between stable isotope composition and hydrochemical parameters in karst springs to provide insights into groundwater origin and subsurface processes: regional application to Lebanon

Environmental Earth Sciences ◽

10.1007/s12665-021-09519-4 ◽

2021 ◽

Vol 80 (6) ◽

Author(s):

Reda ElGhawi ◽

Karlo Pekhazis ◽

Joanna Doummar

Keyword(s):

Regression Analysis ◽

Stable Isotope ◽

Isotope Composition ◽

Stable Isotope Composition ◽

Hydrochemical Parameters ◽

Karst Springs ◽

Groundwater Origin

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Chemical and stable isotope composition of surface and groundwater in the surroundings of the Los Humeros Caldera, Puebla, Mexico

E3S Web of Conferences ◽

10.1051/e3sconf/20199807013 ◽

2019 ◽

Vol 98 ◽

pp. 07013

Author(s):

Thomas Kretzschmar ◽

Matteo Lelli ◽

Ruth Alfaro ◽

Juan Ignacio Sanchez ◽

Yann Rene Ramos

Keyword(s):

Stable Isotope ◽

Isotope Composition ◽

Regression Line ◽

Sustainable Use ◽

Geothermal Reservoir ◽

Maximum Temperature ◽

Stable Isotope Composition ◽

Local Fracture ◽

Hydrogeological Model ◽

Fracture Systems

It is important to develop a regional hydrogeological model to identify possible recharge and discharge areas for a sustainable use of a geothermal reservoir. The Los Humeros geothermal area is situated within five surficial watersheds and coveres an area of more than 15.000 km2. A total of 208 well and spring samples were collected between June 2017 and November 2018. The stable isotope data for this region define a regression line of δDH2O = 8.032·δ18O + 12 and indicate that groundwater is recharged by regional precipitation. At least 39 groundwater wells, with a maximum temperature of 35 °C, show temperatures above the reported mean average surface temperature of 15 °C. Characteristic elements for geothermal reservoir fluids (B, Li, As) are also present in these groundwaters, indicating a possible connection between the reservoir fluid and the local groundwater through local fracture systems. Concentration of B in these hot wells is between 150 and 35000 ppb.

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