ST
Member Since 2003
Sasha v. Turchyn
University Reader, University of Cambridge
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Mineralogical Transitions during Early Diagenesis in Incubation Experiments – A Perspective from Iron Speciation and Iron and Sulfur Isotope Ratios
AGU 2024
biogeosciences | 13 december 2024
Bizhou Zhu, Alexandra V. Turchyn, Yijun Xiong, Jul...
Iron speciation in sedimentary rocks is one of the most widely used tools to determine oxic, anoxic ferruginous (Fe2+-containing), or euxinic (HS--con...
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Competition for Substrate and Anaerobic Methane Oxidation Helps Explain Variability in Fenland Methane Emissions
AGU 2024
biogeosciences | 12 december 2024
Thomas Idris Marquand, Katy Faulkner, Bizhou Zhu, ...
The East Anglian Fens host some of the UKs richest agricultural peatlands. Since drainage of the land for agriculture began in the 17th century, most ...
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A multi-year comparative study of cave system Ca isotope ratios with rainfall, δ13C, and trace element data: Implications for quantitative reconstructions of paleorainfall from speleothems
AN ALL-INCLUSIVE SPELEOTHEM SCIENCE: TOWARD A BETTER PALEOCLIMATE AND PALEOENVIRONMENTAL RECONSTRUCTION I ORAL
paleoceanography and paleoclimatology | 11 december 2023
Cameron B. de Wet, Elizabeth M. Griffith, Andrea M...
The development of quantitative records of past rainfall is an outstanding goal in the field of speleothem paleoclimatology and represents an essentia...
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Trace Element Geochemistry in North Pacific Red Clay Sediment Porewaters and Implications for Water‐Column Studies
GLOBAL BIOGEOCHEMICAL CYCLES
14 november 2023
Zvi Steiner, Gilad Antler, William Berelson, Peter...

Geochemical analyses of trace elements in the ocean water column have suggested that pelagic clay‐rich sediments are a major source of variou...

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Constraining the calcium isotopic composition of the subducted carbonate mineral sink
CHAPMAN CONFERENCE ON HYDROTHERMAL CIRCULATION AND SEAWATER CHEMISTRY
general program | 17 may 2023
Alexandra V. Turchyn, Florence Chen, Harold J. Bra...
The d44Ca of 47 calcium carbonate veins in oceanic crust of modern to Cretaceous age ranges from -0.01‰ to +1.05‰ (versus Bulk Silicate Earth—BSE), be...
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Evolving ocean chemistry influences mineral formation in the oceanic crust during on-axis hydrothermal circulation
CHAPMAN CONFERENCE ON HYDROTHERMAL CIRCULATION AND SEAWATER CHEMISTRY
general program | 15 may 2023
Angus Fotherby, Harold J. Bradbury, Eoin Walsh, Al...
We present a reactive transport model of on-axis hydrothermal circulation describing how changes in temperature, major seawater ion concentration, and...
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Authigenic Formation of Clay Minerals in the Abyssal North Pacific
GLOBAL BIOGEOCHEMICAL CYCLES
10 november 2022
Zvi Steiner, James W. Rae, William Berelson, Jess ...

Present estimates of the biogeochemical cycles of calcium, strontium, and potassium in the ocean reveal large imbalances between known input and ou...

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Isotopic Constraints on Earth System Processes
AGU BOOK SERIES
15 april 2022
Danny Anderson, Jaime Barnes, Anirban Basu, Ethan ...
"Using isotopes as a tool for understanding Earth processes...
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