Sign In / Sign Out
- ASU Home
- My ASU
- Colleges and Schools
- Map and Locations
B.Sc. Geological Sciences, Arizona State University (2016)
My research focuses on Earths oxygenation history: how and when free oxygen first became available and how its availability has evolved through time. To investigate this I am involved in the development and application of iron (Fe), molybdenum (Mo), thallium (Tl), and uranium (U) isotopes in ancient marine sedimentary rocks as proxies for oxygen perturbation.
Blusztajn, J., Nielsen, S.G., Marshall, H., Shu, Y., Ostrander, C.M., Hanyu, T. (2018) Thallium isotope systematics in volcanic rocks from St. Helena – Constraints on the origin of the HIMU reservoir. Chemical Geology 476, 292-301.
Ostrander C.M., Owens, J.D., Nielsen, S.G. (2017) Constraining the rate of oceanic deoxygenation leading up to a Cretaceous Oceanic Anoxic Event (OAE-2: ~94Ma). Science Advances 3, e1701020.
Owens, J.D., Nielsen, S.G., Horner, T.J., Ostrander, C.M., Peterson, L. (2017) Thallium-isotopic compositions of euxinic sediments as a proxy for global manganese-oxide burial. Geochimica et Cosmochimica Acta 213, 291-307.