Major and selected trace elements for ancient glacial diamictites

Gaschnig, Richard M
Rudnick, Roberta; ORCID: 0000-0003-1559-7463; SCOPUS: 7003986769
McDonough, Bill
Kaufman, Alan
Hu, Zhaochu; ORCID: 0000-0001-8415-7811; SCOPUS: 56645272900
Gao, Shan; SCOPUS: 55722766000
These data are whole-rock major and trace element measurements for ancient glacial diamictites from the Paleozoic, Neoproterozoic, Paleoproterozoic, and Mesoarchean. They show systematic changes in transition metals that can be attributable to two affects: 1) gradual evolution of the average composition of the upper continental crust towards a more evolved composition; and 2) loss of redox sensitive elements from the continental crust and transfer to the oceans due to increasing levels of oxidative weathering as atmospheric oxygen levels rose.
How to cite this dataset:
Gaschnig, R. M., Rudnick, R., McDonough, B., Kaufman, A., Hu, Z., Gao, S., 2015. Major and selected trace elements for ancient glacial diamictites, Version 1.0. Interdisciplinary Earth Data Alliance (IEDA). Accessed 2024-04-25.
DOI Creation Date:
Gaschnig, Rudnick, McDonough, Kaufman, Hu, and Gao, (2014) "Onset of oxidative weathering of continents recorded in the geochemistry of ancient glacial diamictites." Earth and Planetary Science Letters, 408: 87-99.
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC-BY-NC-SA-3.0]
Funding source(s):
National Science Foundation: 1321954
Coverage Scope: Global
User Contributed Keyword(s):
continental crust, oxidative weathering, redox
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