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40Ar/39Ar eruption ages of Turkana Basin tuffs: millennial scale resolution constrains paleoclimate proxy tuning models and hominin fossil ages

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posted on 2023-04-17, 14:02 authored by David Phillips, Erin Matchan, Andy Gleadow, Frank Brown, Ian McDougall, Thure Cerling, Meave Leakey, Janet Hergt, Louise Leakey
Fig. S3 BaO and CaO line-scan profiles across Chari 81-219 and Tuff L-P1 feldspar grains identified as having high core/rim ratios from initial two-spot analyses, plus random grains with minimal core/rim zonation for comparison. Uncertainties are 1σ (detection limits). Source data are listed in Table S4.

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