Terrestrial microbialites provide constraints on the mesoproterozoic atmosphere

Autor: Michael T. Hren, Nathan D. Sheldon

Publikováno v: The Depositional Record, Vol 6, Iss 1, Pp 4-20 (2020)

Abstract Palaeoclimate data indicate that Earth surface temperatures have remained largely temperate for the past 3.5 Byr despite significantly lower solar luminosity over this time relative to the present day. There is evidence for episodic early an

Externí odkaz: https://doaj.org/article/332db7d41a254f5e88b93f9168cfe00e

Altered Mantle Fabric Beneath the Mid‐Continent Rift

Autor: A. W. Frederiksen, P. Pokar, E. Barrow, J. Revenaugh, S. van derLee

Publikováno v: Geochemistry, Geophysics, Geosystems, Vol 22, Iss 9, Pp n/a-n/a (2021)

Abstract We present new, densely sampled shear‐wave splitting results from southern Minnesota and adjacent areas of neighboring states, sampling the southwestern limit of the Archean Superior Province and straddling the Proterozoic Mid‐Continent

Externí odkaz: https://doaj.org/article/3595dd6b320c400e97a233155651ff62

Constraining the isotopic endmembers contributing to 1.1 Ga Keweenawan large igneous province magmatism

Autor: Tyrone O. Rooney, Jasper G. Konter, Valerie A. Finlayson, Andrew LaVigne, Eric L. Brown, Carol A. Stein, Seth Stein, Robert Moucha

Publikováno v: Rooney, T O, Konter, J G, Finlayson, V A, LaVigne, A, Brown, E L, Stein, C A, Stein, S & Moucha, R 2022, ' Constraining the isotopic endmembers contributing to 1.1 Ga Keweenawan large igneous province magmatism ', Contributions to Mineralogy and Petrology, vol. 177, no. 4, 49 . https://doi.org/10.1007/s00410-022-01907-8

Continental flood basalt lavas often contain deeply-sourced, thermo-chemically anomalous material that can provide a potential probe of inaccessible reservoirs. However, continental flood basalts interact with geochemically diverse domains within the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dddb23d861e1f13ae25cfd55fa7500f6
https://pure.au.dk/portal/da/publications/constraining-the-isotopic-endmembers-contributing-to-11ga-keweenawan-large-igneous-province-magmatism(7a369f12-461d-43e8-af2b-1f74a836f9a3).html

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