Výsledky vyhledávání - "Claire E. Bucholz"

Akademický článek

Constraints on Early Paleozoic Deep‐Ocean Oxygen Concentrations From the Iron Geochemistry of the Bay of Islands Ophiolite

Autor: Daniel A. Stolper, Xiaofei Pu, Max K. Lloyd, Nikolas I. Christensen, Claire E. Bucholz, Rebecca A. Lange

Publikováno v: Geochemistry, Geophysics, Geosystems, Vol 23, Iss 7, Pp n/a-n/a (2022)

Abstract The deep ocean is generally considered to have changed from anoxic in the Precambrian to oxygenated by the Late Paleozoic (∼420–400 Ma) due to changes in atmospheric oxygen concentrations. When the transition occurred, that is, in the Ea

Externí odkaz: https://doaj.org/article/37136e5dffb34f0b93dab858031ea804

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Coupling sulfur and oxygen isotope ratios in sediment melts across the Archean-Proterozoic transition

Autor: Janne Liebmann, Christopher Spencer, Christopher L. Kirkland, Laure Martin, Leonid Shumlyanskyy, Xiaoping Xia, Claire E. Bucholz, Nami Kitchen

Publikováno v: Geochimica et Cosmochimica Acta. 307:242-257

The Archean-Proterozoic transition marks a time of fundamental geologic, biologic, and atmospheric changes to the Earth system, including oxygenation of the atmosphere (termed the Great Oxygenation Event; GOE), and the emergence of continents above s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a96647b8be6f799a5dc654767aa8c2c
https://doi.org/10.1016/j.gca.2021.05.045

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Evidence for polybaric fractional crystallization in a continental arc: Hidden Lakes mafic complex, Sierra Nevada batholith, California

Autor: Claire E. Bucholz, Madeline J. Lewis, Oliver Jagoutz

Publikováno v: Springer Berlin Heidelberg

Although the voluminous granitoids that constitute the upper crust of the Sierra Nevada batholith (California) have been investigated in detail, comparatively few studies focus on the origin of mafic bodies at similar crustal levels. Here, we present

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44837c6321a7a5ab6e28d403897c258c
https://doi.org/10.1007/s00410-021-01844-y

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Emergence of continents above sea‐level influences sediment melt composition

Autor: Laure Martin, M. Santosh, Noreen J. Evans, Xiao-Fang He, Janne Liebmann, Christopher L. Kirkland, Xiaoping P. Xia, Christopher Spencer, Claire E. Bucholz

The Archean‐Proterozoic transition heralded a number of fundamental changes on Earth, including the oxygenation of the atmosphere, a marked emergence of continents above sea‐level, and an increase in δ¹⁸O of felsic magmas. The potential drive

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14626eaa6d7cd153b8c1301caf206ddc
https://resolver.caltech.edu/CaltechAUTHORS:20210503-125957872

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Sulfur isotope behavior during metamorphism and anatexis of Archean sedimentary rocks: A case study from the Ghost Lake batholith, Ontario, Canada

Autor: Shuhei Ono, Joseph A. Biasi, P. Beaudry, Claire E. Bucholz

Recycling of surface-derived sulfur into the deep earth can impart distinct sulfur isotope signatures to magmas. The details of sulfur transfer from sedimentary rocks to magmas (and ultimately igneous rocks) through metamorphism and devolatilization

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bba73742c488a9a59a2ed4f08e0ad62
https://resolver.caltech.edu/CaltechAUTHORS:20200817-094633188

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