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    Rights statement: This is the peer reviewed version of the following article: Zwahlen, C., Hollis, C., Lawson, M., Becker, S. P., Boyce, A., Zhou, Z., & Holland, G. (2019). Constraining the fluid history of a CO2‐H2S reservoir: Insights from stable isotopes, REE, and fluid inclusion microthermometry. Geochemistry, Geophysics, Geosystems, 20, 359–382. https://doi.org/10.1029/2018GC007900 which has been published in final form at https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018GC007900 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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Constraining the fluid history of a CO2-H2S reservoir: Insights from stable isotopes, REE and fluid inclusion microthermometry

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Constraining the fluid history of a CO2-H2S reservoir: Insights from stable isotopes, REE and fluid inclusion microthermometry. / Zwahlen, Carmen; Hollis, Cathy; Lawson, Michael; Becker, Stephen P.; Boyce, Adrian; Zhou, Zheng; Holland, Greg.

In: Geochemistry, Geophysics, Geosystems, Vol. 20, No. 1, 01.2019, p. 359-382.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Zwahlen, C, Hollis, C, Lawson, M, Becker, SP, Boyce, A, Zhou, Z & Holland, G 2019, 'Constraining the fluid history of a CO2-H2S reservoir: Insights from stable isotopes, REE and fluid inclusion microthermometry', Geochemistry, Geophysics, Geosystems, vol. 20, no. 1, pp. 359-382. https://doi.org/10.1029/2018GC007900

APA

Zwahlen, C., Hollis, C., Lawson, M., Becker, S. P., Boyce, A., Zhou, Z., & Holland, G. (2019). Constraining the fluid history of a CO2-H2S reservoir: Insights from stable isotopes, REE and fluid inclusion microthermometry. Geochemistry, Geophysics, Geosystems, 20(1), 359-382. https://doi.org/10.1029/2018GC007900

Vancouver

Zwahlen C, Hollis C, Lawson M, Becker SP, Boyce A, Zhou Z et al. Constraining the fluid history of a CO2-H2S reservoir: Insights from stable isotopes, REE and fluid inclusion microthermometry. Geochemistry, Geophysics, Geosystems. 2019 Jan;20(1):359-382. https://doi.org/10.1029/2018GC007900

Author

Zwahlen, Carmen ; Hollis, Cathy ; Lawson, Michael ; Becker, Stephen P. ; Boyce, Adrian ; Zhou, Zheng ; Holland, Greg. / Constraining the fluid history of a CO2-H2S reservoir: Insights from stable isotopes, REE and fluid inclusion microthermometry. In: Geochemistry, Geophysics, Geosystems. 2019 ; Vol. 20, No. 1. pp. 359-382.

Bibtex

@article{97b17b11dc9f4554b1f7cfc0f8785cbe,
title = "Constraining the fluid history of a CO2-H2S reservoir: Insights from stable isotopes, REE and fluid inclusion microthermometry",
abstract = "Reservoirs that host CO2-H2S bearing gases provide a key insight into crustal redox reactions such as thermochemical sulphate reduction (TSR). Despite this, there remains a poor understanding of the extent, duration and the factors limiting this process on a reservoir scale. Here we show how a combination of petrography, fluid inclusion, rare earth element (REE) and carbon (δ13C), oxygen (δ18O) and sulphur (δ34S) stable isotope data can disentangle the fluid history of the world's largest CO2 accumulation, the LaBarge Field in Wyoming, USA. The carbonate hosted LaBarge Field was charged with oil around 80 Ma ago, which together with nodular anhydrite, represent the reactants for TSR. The nodules exhibit two distinct trends of evolution in δ13C with both δ34S and δ18O that may be coupled to two different processes. The first trend, was interpreted to reflect the coupled dissolution of anhydrite and reduction to elemental sulphur and the oxidation of organic compounds and associated precipitation of calcite during TSR. In contrast, the second trend was interpreted to be the result of the hydrothermal CO2 influx after the cessation of TSR. In addition, mass balance calculations were performed to estimate an approximate TSR reaction duration of 80 ka and to identify the availability of organic compounds as the limiting factor of the TSR process. Such an approach provides a tool for the prediction of TSR occurrence elsewhere and advancing our understanding of crustal fluid interactions.",
keywords = "CO2 reservoir, stable isotopes, carbon sequestration, carbonate associated sulphate, calcite nodules",
author = "Carmen Zwahlen and Cathy Hollis and Michael Lawson and Becker, {Stephen P.} and Adrian Boyce and Zheng Zhou and Greg Holland",
note = "This is the peer reviewed version of the following article: Zwahlen, C., Hollis, C., Lawson, M., Becker, S. P., Boyce, A., Zhou, Z., & Holland, G. (2019). Constraining the fluid history of a CO2‐H2S reservoir: Insights from stable isotopes, REE, and fluid inclusion microthermometry. Geochemistry, Geophysics, Geosystems, 20, 359–382. https://doi.org/10.1029/2018GC007900 which has been published in final form at https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018GC007900 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.",
year = "2019",
month = jan,
doi = "10.1029/2018GC007900",
language = "English",
volume = "20",
pages = "359--382",
journal = "Geochemistry, Geophysics, Geosystems",
issn = "1525-2027",
publisher = "John Wiley & Sons, Ltd",
number = "1",

}

RIS

TY - JOUR

T1 - Constraining the fluid history of a CO2-H2S reservoir: Insights from stable isotopes, REE and fluid inclusion microthermometry

AU - Zwahlen, Carmen

AU - Hollis, Cathy

AU - Lawson, Michael

AU - Becker, Stephen P.

AU - Boyce, Adrian

AU - Zhou, Zheng

AU - Holland, Greg

N1 - This is the peer reviewed version of the following article: Zwahlen, C., Hollis, C., Lawson, M., Becker, S. P., Boyce, A., Zhou, Z., & Holland, G. (2019). Constraining the fluid history of a CO2‐H2S reservoir: Insights from stable isotopes, REE, and fluid inclusion microthermometry. Geochemistry, Geophysics, Geosystems, 20, 359–382. https://doi.org/10.1029/2018GC007900 which has been published in final form at https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018GC007900 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

PY - 2019/1

Y1 - 2019/1

N2 - Reservoirs that host CO2-H2S bearing gases provide a key insight into crustal redox reactions such as thermochemical sulphate reduction (TSR). Despite this, there remains a poor understanding of the extent, duration and the factors limiting this process on a reservoir scale. Here we show how a combination of petrography, fluid inclusion, rare earth element (REE) and carbon (δ13C), oxygen (δ18O) and sulphur (δ34S) stable isotope data can disentangle the fluid history of the world's largest CO2 accumulation, the LaBarge Field in Wyoming, USA. The carbonate hosted LaBarge Field was charged with oil around 80 Ma ago, which together with nodular anhydrite, represent the reactants for TSR. The nodules exhibit two distinct trends of evolution in δ13C with both δ34S and δ18O that may be coupled to two different processes. The first trend, was interpreted to reflect the coupled dissolution of anhydrite and reduction to elemental sulphur and the oxidation of organic compounds and associated precipitation of calcite during TSR. In contrast, the second trend was interpreted to be the result of the hydrothermal CO2 influx after the cessation of TSR. In addition, mass balance calculations were performed to estimate an approximate TSR reaction duration of 80 ka and to identify the availability of organic compounds as the limiting factor of the TSR process. Such an approach provides a tool for the prediction of TSR occurrence elsewhere and advancing our understanding of crustal fluid interactions.

AB - Reservoirs that host CO2-H2S bearing gases provide a key insight into crustal redox reactions such as thermochemical sulphate reduction (TSR). Despite this, there remains a poor understanding of the extent, duration and the factors limiting this process on a reservoir scale. Here we show how a combination of petrography, fluid inclusion, rare earth element (REE) and carbon (δ13C), oxygen (δ18O) and sulphur (δ34S) stable isotope data can disentangle the fluid history of the world's largest CO2 accumulation, the LaBarge Field in Wyoming, USA. The carbonate hosted LaBarge Field was charged with oil around 80 Ma ago, which together with nodular anhydrite, represent the reactants for TSR. The nodules exhibit two distinct trends of evolution in δ13C with both δ34S and δ18O that may be coupled to two different processes. The first trend, was interpreted to reflect the coupled dissolution of anhydrite and reduction to elemental sulphur and the oxidation of organic compounds and associated precipitation of calcite during TSR. In contrast, the second trend was interpreted to be the result of the hydrothermal CO2 influx after the cessation of TSR. In addition, mass balance calculations were performed to estimate an approximate TSR reaction duration of 80 ka and to identify the availability of organic compounds as the limiting factor of the TSR process. Such an approach provides a tool for the prediction of TSR occurrence elsewhere and advancing our understanding of crustal fluid interactions.

KW - CO2 reservoir

KW - stable isotopes

KW - carbon sequestration

KW - carbonate associated sulphate

KW - calcite nodules

U2 - 10.1029/2018GC007900

DO - 10.1029/2018GC007900

M3 - Journal article

VL - 20

SP - 359

EP - 382

JO - Geochemistry, Geophysics, Geosystems

JF - Geochemistry, Geophysics, Geosystems

SN - 1525-2027

IS - 1

ER -