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Filtering by: Creator Riedel, M. Resource Type Article

Using the ⁸⁷Sr/⁸⁶Sr of modern and paleoseep carbonates from northern Cascadia to link modern fluid flow to the past

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Joseph, C., Torres, M. E., Martin, R. A., Haley, B. A., Pohlman, J. W., Riedel, M., and Rose, K.

Abstract:

Most authigenic carbonates previously recovered from the Cascadia slope have Sr-⁸⁷/Sr-⁸⁶ signatures that reflect shallow precipitation in equilibrium with coeval seawater. There is also evidence for carbonate formation supported by fluids that have been modified by reactions with the incoming Juan de Fuca plate (Sr-⁸⁷/⁸⁶(Sr) = 0.7071; Teichert et al.,...

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Article

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, M. Riedel d, K. Rose e a Oregon State University, College of Earth, Ocean, and Atmospheric Sciences
A New Method for Analyzing ¹⁴C of Methane in Ancient Air Extracted from Glacial Ice

Creator:

Petrenko, Vasilii V., Smith, Andrew M., Brailsford, Gordon, Riedel, Katja, Hua, Quan, Lowe, Dave, Severinghaus, Jeffrey P., Levchenko, Vladimir, Bromley, Tony, Moss, Rowena, Muhle, Jens, and Brook, Edward J.

Abstract:

We present a new method developed for measuring radiocarbon of methane (¹⁴CH₄) in ancient air samples extracted from glacial ice and dating 11,000–15,000 calendar years before present. The small size (~20 μg CH₄ carbon), low CH₄ concentrations ([CH₄], 400–800 parts per billion [ppb]), high carbon monoxide concentrations ([CO]), and low...

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Article

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ANALYZING 14C OF METHANE IN ANCIENT AIR EXTRACTED FROM GLACIAL ICE Vasilii V Petrenko1,2 • Andrew M Smith3

ScholarsArchive@OSU

Using the ⁸⁷Sr/⁸⁶Sr of modern and paleoseep carbonates from northern Cascadia to link modern fluid flow to the past

A New Method for Analyzing ¹⁴C of Methane in Ancient Air Extracted from Glacial Ice

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