Supporting Information for Potassium Isotope Evidence for the Origin of Paleoarchean TTGs from Hydrothermally Altered Oceanic Crust
Description
This dataset contains detailed sample information, 5 figures and 6 tables as the supporting information for the paper entitled "Potassium Isotope Evidence for the Origin of Paleoarchean TTGs from Hydrothermally Altered Oceanic Crust". Text S1. Detailed Sample Information. Figure S1. Thin section photos of the Paleoarchean TTG samples in cross polarized light. Figure S2. Chondrite normalized (Mcdonough & Sun, 1995) rare earth element patterns of the Paleoarchean TTG samples. Figure S3. Thin section photos of the Paleoarchean mafic rock samples in cross polarized light. Figure S4. Diagrams of δ41K vs. ratios of K, Li, Cs and Rb to both Sm and Al of our mafic rock samples. Figure S5. Diagrams of δ41K and LOI, CIA, Ce/Pb and Rb/Sr of Paleoarchean TTGs and mafic rocks. Table S1. K isotope data for solutions of standard as well as purified geological reference materials and samples. Table S2. Data summary: Ages, major elements contents, and K and O isotopic compositions of the ca. 3.51-3.42 Ga BGGT TTGs and Paleoarchean mafic rocks from the eastern Kaapvaal Craton. Table S3. Major elements contents and mineral assemblages of TTG samples. Table S4. Trace elements concentrations of TTG samples. Table S5. Major elements contents of the mafic rock samples. Table S6. Trace elements concentrations of the mafic rock samples.
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Steps to reproduce
XRF, ICP-MS, MC-ICP-MS, SIMS
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Funding
National Natural Science Foundation of China
42025202
Fundamental Research Funds for the Central Universities
0206-14380166