Ice-core sulfate and glass shards, 1458 to 1459
Vostok firn core shards are bimodal: dacitic (Kuwae-like) and rhyolitic (unknown high-latitude southern source). Coarse particles arrive before fine ones, consistent with a near source followed by a distant one.
How it connects
This clue from nature supports this hunch
The second 1458 volcano matches no known eruption: a continental-crust rhyolite, far south, never studied
This clue from nature is a clue for
1458 eruption pair
This clue from nature we read it in
Cole-Dai et al. 2013, Two likely stratospheric volcanic eruptions in the 1450s, JGR Atmospheres
This clue from nature we read it in
2025, Origin of the 1458/59 CE volcanic eruption revealed through glass shards in the Vostok firn core, Communications Earth and Environment