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    • Article
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    Detecting and explaining why aquifers occasionally become degraded near hydraulically fractured shale gas wells

    Woda, Josh, Wen, Tao, Oakley, David, Yoxtheimer, David, Engelder, Terry, Castro, M Clara, Brantley, Susan L
    Proceedings of the National Academy of Sciences of the United States of America, 04 December 2018, Vol.115(49), pp.12349-12358 [Revue évaluée par les pairs]
    MEDLINE/PubMed (U.S. National Library of Medicine)
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    Titre: Detecting and explaining why aquifers occasionally become degraded near hydraulically fractured shale gas wells
    Auteur: Woda, Josh; Wen, Tao; Oakley, David; Yoxtheimer, David; Engelder, Terry; Castro, M Clara; Brantley, Susan L
    Sujet: Hydraulic Fracturing ; Methane ; Noble Gases ; Shale Gas ; Water Quality
    Description: Extensive development of shale gas has generated some concerns about environmental impacts such as the migration of natural gas into water resources. We studied high gas concentrations in waters at a site near Marcellus Shale gas wells to determine the geological explanations and geochemical implications. The local geology may explain why methane has discharged for 7 years into groundwater, a stream, and the atmosphere. Gas may migrate easily near the gas wells in this location where the Marcellus Shale dips significantly, is shallow (∼1 km), and is more fractured. Methane and ethane concentrations in local water wells increased after gas development compared with predrilling concentrations reported in the region. Noble gas and isotopic evidence are consistent with the upward migration of gas from the Marcellus Formation in a free-gas phase. This upflow results in microbially mediated oxidation near the surface. Iron concentrations also increased following the increase of natural gas concentrations...
    Fait partie de: Proceedings of the National Academy of Sciences of the United States of America, 04 December 2018, Vol.115(49), pp.12349-12358
    Identifiant: 1091-6490 (E-ISSN); 30455298 Version (PMID); 10.1073/pnas.1809013115 (DOI)

    • Livre
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    The initiation, propagation, and arrest of joints and other fractures

    Cosgrove, John W, Engelder, Terry
    London : The Geological Society
    2004
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    Titre: The initiation, propagation, and arrest of joints and other fractures / ed. by J.W. Cosgrove and T. Engelder
    Auteur: Cosgrove, John W; Engelder, Terry
    Editeur: London : The Geological Society
    Date: 2004
    Collation: 330 p. : ill. ; 26 cm
    Collection: Geological Society special publication ; no 231
    Documents dans cette collection: Geological Society special publication
    Sujet RERO: faille - croissance - Géologie
    Note: Includes bibliographical references
    Classification: LC QE1
    Identifiant: 1862391653 (ISBN)
    No RERO: R003778072
    Permalien:
    http://data.rero.ch/01-R003778072/html?view=FR_V1

    • Article
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    Should fracking stop?

    Howarth, Robert W., Ingraffea, Anthony, Engelder, Terry
    Nature, 9/2011, Vol.477(7364), pp.271-275 [Revue évaluée par les pairs]
    Nature Publishing Group (via CrossRef)
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    Titre: Should fracking stop?
    Auteur: Howarth, Robert W.; Ingraffea, Anthony; Engelder, Terry
    Sujet: Environmental Protection ; Hydraulic Fracturing ; Natural Gas ; Pipelines ; Outdoor Air Quality ; Water Quality ; Groundwater ; Drinking Water ; Drilling;
    Description: Shale rock formations can contain vast amounts of natural gas (which is mostly methane). [...] quite recently, most of this gas was not economically obtainable, because shale is far less permeable than the rock formations exploited for conventional gas. According to a recent New York Times analysis, these elements can be above the US Environmental Protection Agency's sanctioned background concentrations in some flowback tanks.
    Fait partie de: Nature, 9/2011, Vol.477(7364), pp.271-275
    Identifiant: 0028-0836 (ISSN); 1476-4687 (E-ISSN); http (DOI)

    • Article
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    Capillary tension and imbibition sequester frack fluid in Marcellus gas shale

    Engelder, Terry
    Proceedings of the National Academy of Sciences of the United States of America, 26 December 2012, Vol.109(52), pp.E3625; author reply E3626 [Revue évaluée par les pairs]
    MEDLINE/PubMed (U.S. National Library of Medicine)
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    Titre: Capillary tension and imbibition sequester frack fluid in Marcellus gas shale
    Auteur: Engelder, Terry
    Sujet: Geological Phenomena ; Water Movements ; Groundwater -- Chemistry ; Salts -- Chemistry ; Water Pollutants, Chemical -- Analysis ; Water Supply -- Analysis
    Description: Author contributions: T.E. wrote the paper.
    Fait partie de: Proceedings of the National Academy of Sciences of the United States of America, 26 December 2012, Vol.109(52), pp.E3625; author reply E3626
    Identifiant: 1091-6490 (E-ISSN); 23236187 Version (PMID); 10.1073/pnas.1216133110 (DOI)

    • Article
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    Comment on "Predictors of Indoor Radon Concentrations in Pennsylvania, 1989-2013"

    Engelder, Terry
    Environmental health perspectives, November 2015, Vol.123(11), pp.A273 [Revue évaluée par les pairs]
    MEDLINE/PubMed (U.S. National Library of Medicine)
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    Titre: Comment on "Predictors of Indoor Radon Concentrations in Pennsylvania, 1989-2013"
    Auteur: Engelder, Terry
    Sujet: Air Pollutants, Radioactive ; Radon
    Description: When dividing Pennsylvania counties into five groups, Casey et al. reported an upward trend in radon concentration between 2004 and 2012 in all groups. NBC News subsequently warned, “Rising levels of toxic gas found in homes near fracking sites” (NBC News 2015). This headline is misleading.
    Fait partie de: Environmental health perspectives, November 2015, Vol.123(11), pp.A273
    Identifiant: 1552-9924 (E-ISSN); 26523446 Version (PMID); 10.1289/ehp.1510250 (DOI)

    • Plusieurs versions

    The fracking debate in Europe : an assessment of the history behind the European bans on hydraulic fracturing

    Engelder, Terry
    Swiss bulletin für angewandte Geologie = Swiss bulletin pour la géologie appliquée = Swiss bulletin per la geologia applicata = Swiss bulletin for applied geology, 2014, Vol.19(2), p.65

    • Plusieurs versions

    Pancake joints in Utica gas shale: Mechanisms for lifting overburden during exhumation

    Engelder, Terry, Gross, Michael
    Journal of Structural Geology, December 2018, Vol.117, pp.241-250 [Revue évaluée par les pairs]

    • Plusieurs versions

    Revisiting the Hubbert–Rubey pore pressure model for overthrust faulting: Inferences from bedding-parallel detachment surfaces within Middle Devonian gas shale, the Appalachian Basin, USA

    Aydin, Murat G, Engelder, Terry
    Journal of Structural Geology, December 2014, Vol.69, pp.519-537 [Revue évaluée par les pairs]

    • Plusieurs versions

    Analysis of a gas explosion in Dimock PA (USA) during fracking operations in the Marcellus gas shale

    Engelder, Terry, Zevenbergen, John F
    Process Safety and Environmental Protection, July 2018, Vol.117, pp.61-66 [Revue évaluée par les pairs]

    • Plusieurs versions

    Natural gas: Should fracking stop?

    Howarth, Robert W, Ingraffea, Anthony, Engelder, Terry
    Nature, 14 September 2011, Vol.477(7364), pp.271-5 [Revue évaluée par les pairs]