Spectral induced polarization signatures of abiotic FeS precipitation

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In recent years, geophysical methods have been shown to be sensitive to microbial induced mineralization processes. The spectral induced polarization (SIP) method appears to be very promising for monitoring mineralization and microbial processes. With this work, we study the links of mineralization and SIP signals, in the absence of microbial activity. We recorded the SIP response during abiotic FeS precipitation. We show that the SIP signals are diagnostic of FeS mineralization and can be differentiated from SIP signals from bio-mineralization processes. More specifically the imaginary conductivity shows almost linear dependence on the amount of FeS precipitating out of solution, above ... continued below

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Ntarlagiannis, D.; Doherty, R. & Williams, K. H. January 15, 2010.

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In recent years, geophysical methods have been shown to be sensitive to microbial induced mineralization processes. The spectral induced polarization (SIP) method appears to be very promising for monitoring mineralization and microbial processes. With this work, we study the links of mineralization and SIP signals, in the absence of microbial activity. We recorded the SIP response during abiotic FeS precipitation. We show that the SIP signals are diagnostic of FeS mineralization and can be differentiated from SIP signals from bio-mineralization processes. More specifically the imaginary conductivity shows almost linear dependence on the amount of FeS precipitating out of solution, above the threshold value 0.006 gr under our experimental conditions. This research has direct implications for the use of the SIP method as a monitoring, and decision making, tool for sustainable remediation of metals in contaminated soils and groundwater.

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  • Journal Name: Geophysics; Related Information: Journal Publication Date: 2010

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  • Report No.: LBNL-3130E
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.1190/1.3467759 | External Link
  • Office of Scientific & Technical Information Report Number: 982919
  • Archival Resource Key: ark:/67531/metadc1012851

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Office of Scientific & Technical Information Technical Reports

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  • January 15, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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  • Oct. 18, 2017, 10:12 a.m.

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Ntarlagiannis, D.; Doherty, R. & Williams, K. H. Spectral induced polarization signatures of abiotic FeS precipitation, article, January 15, 2010; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc1012851/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.