 The development of alder-containing birch forests in the region may have been favoured by the ash fall from the eruption, which would have killed more susceptible conifers.Ice cores taken in the Siberian Altai demonstrate increased sulfate concentrations at the time, possibly stemming from large sulfate release by the eruptions of Lvinaya Past and contemporaneous large scale activity at Caldera Fisher in Alaska and Pinatubo in the Philippines.Lvinaya Past has erupted tholeiitic magmas with a low potassium content.