Vanadium Isotopes
A Proxy for Ocean Oxygen Variations
Seiten
2021
Cambridge University Press (Verlag)
978-1-108-79794-8 (ISBN)
Cambridge University Press (Verlag)
978-1-108-79794-8 (ISBN)
Vanadium isotope ratios (51V/50V) have potential to provide information about changes in past ocean oxygen contents. The oxygen abundance sensitivity range of V isotopes suggests that this paleoproxy could be particularly useful in tracing marine oxygenation changes throughout the Phanerozoic and potentially beyond.
Vanadium isotope ratios (51V/50V) have potential to provide information about changes in past ocean oxygen contents. In particular, V isotopes may find utility in tracing variations at non-zero oxygen concentrations because the redox couple that controls V elemental and isotopic abundances in seawater (vanadate-vanadyl) appears to operate around 10M O2. This characteristic sets V isotopes apart from many other metal isotope redox proxies that require more reducing conditions to register significant changes in their isotope budgets. The oxygen abundance sensitivity range of V isotopes suggests that this paleoproxy could be particularly useful in tracing marine oxygenation changes throughout the Phanerozoic and potentially beyond.
Vanadium isotope ratios (51V/50V) have potential to provide information about changes in past ocean oxygen contents. In particular, V isotopes may find utility in tracing variations at non-zero oxygen concentrations because the redox couple that controls V elemental and isotopic abundances in seawater (vanadate-vanadyl) appears to operate around 10M O2. This characteristic sets V isotopes apart from many other metal isotope redox proxies that require more reducing conditions to register significant changes in their isotope budgets. The oxygen abundance sensitivity range of V isotopes suggests that this paleoproxy could be particularly useful in tracing marine oxygenation changes throughout the Phanerozoic and potentially beyond.
1. Introduction; 2. Marine elemental and isotopic cycle of vanadium; 3. Analytical methodologies; 4. Potential for applications of V isotopes to reconstruct past ocean redox.
| Erscheinungsdatum | 15.01.2021 |
|---|---|
| Reihe/Serie | Elements in Geochemical Tracers in Earth System Science |
| Zusatzinfo | Worked examples or Exercises |
| Verlagsort | Cambridge |
| Sprache | englisch |
| Maße | 230 x 150 mm |
| Gewicht | 670 g |
| Themenwelt | Naturwissenschaften ► Biologie ► Biochemie |
| Naturwissenschaften ► Geowissenschaften ► Geologie | |
| Technik ► Umwelttechnik / Biotechnologie | |
| ISBN-10 | 1-108-79794-6 / 1108797946 |
| ISBN-13 | 978-1-108-79794-8 / 9781108797948 |
| Zustand | Neuware |
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