Insights into methane dynamics from analysis of authigenic carbonates and chemosynthetic mussels at newly-discovered Atlantic Margin seeps

Prouty, N.G.; Sahy, D.; Ruppel, C.D.; Roark, E.B.; Condon, D.; Brooke, S.; Ross, S.W.; Demopoulos, A.W.J.

doi:10.1016/j.epsl.2016.05.023

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Insights into methane dynamics from analysis of authigenic carbonates and chemosynthetic mussels at newly-discovered Atlantic Margin seeps

2016
By Prouty, N.G. ; Sahy, D. ; Ruppel, C.D. ; ...
Source: Earth and Planetary Science Letters, 449, 332-344

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Earth and Planetary Science Letters
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Prouty, N.G. ; Sahy, D. ; Ruppel, C.D. ; Roark, E.B. ; Condon, D. ; ... More +

Prouty, N.G. ; Sahy, D. ; Ruppel, C.D. ; Roark, E.B. ; Condon, D. ; Brooke, S. ; Ross, S.W. ; Demopoulos, A.W.J. Less -
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The recent discovery of active methane venting along the US northern and mid-Atlantic margin represents a new source of global methane not previously accounted for in carbon budgets from this region. However, uncertainty remains as to the origin and history of methane seepage along this tectonically inactive passive margin. Here we present the first isotopic analyses of authigenic carbonates and methanotrophic deep-sea mussels, Bathymodiolus sp., and the first direct constraints on the timing of past methane emission, based on samples collected at the upper slope Baltimore Canyon (∼385 m water depth) and deepwater Norfolk (∼1600 m) seep fields within the area of newly-discovered venting.
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Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Geophysics Space And Planetary Science
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Earth and Planetary Science Letters, 449, 332-344
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https://doi.org/10.1016/j.epsl.2016.05.023
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0012-821X
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Elsevier BV
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urn:sha256:5e1b38ddaaca57467904e26b6b13f339b2a25136afcd3c4faca76290505cafe9
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Insights into methane dynamics from analysis of authigenic carbonates and chemosynthetic mussels at newly-discovered Atlantic Margin seeps

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