Published May 9, 2023
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Chemical composition of DCH-67.55 cryptotephra glass shards from Lake Chala
Authors/Creators
- 1. Utrecht University
- 2. Ghent University
- 3. University of Cambridge
- 4. University of Haifa
- 5. Max Planck Institute for Chemistry
- 6. University of Nairobi
- 7. Utrecht University, Royal NIOZ
Description
Mean composition data based on n single DeepCHALLA cryptotephra glass shard analyses of major and minor element oxides (by WDS-EPMA, n=32) and trace elements (by LA-ICP-MS, n=19). Also shown are compositions of secondary glass standards measured during the same instrumental runs, and their correspondence with approximate expected values for in-house Lipari glass and with GeoRem-preferred (pref. val.) or true values for MPI-DING glass secondary standards (Marshall et al., 2009; Scot and Skilling, 1999).
Notes
Supplementary Table 1 for 'Reversed Holocene temperature-moisture relationship in the Horn of Africa, by Baxter et al., 2023. Nature.
Files
Supplementary Table 1.pdf
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Additional details
References
- Marshall, A.S. et al. Fractionation of peralkaline silicic magmas: The greater Olkaria volcanic complex, Kenya Rift Valley. J. Petrol. 50, 323–359 (2009).
- Scott, S.C., Skilling, I.P. The role of tephrachronology in recognizing synchronous calderaforming events at the Quaternary volcanoes Longonot and Suswa, south Kenya Rift. Geol. Soc. London, Spec. Publ. 161, 47–67 (1999).