Holocene eruptive history of Shiveluch Volcano, Kamchatka Peninsula, Russia

Early Holocene M~6 explosive eruption from Plosky volcanic massif (Kamchatka) and its tephra as a link between terrestrial and marine paleoenvironmental records

“…Therefore, the date of 8,610 ± 60 14 C years is not valid for (below) PL2. The dates of 8,620 ± 100 years in site 58 (Braitseva et al 1995) and 8,670 ± 80 14 C years from a proximal section at Shiveluch slope (Ponomareva et al 2007b) were obtained above PL2 tephra and do not contradict the newly obtained date.…”

“…2) (Melekestsev 2005), but few data supporting these suggestions have been published. Two early Holocene tephras were attributed to Plosky and used as local markers by Ponomareva et al (2007b), but no detailed data reported. The magnitude of Plosky explosive eruptions has not been previously estimated, and thus the volcano has not been listed as a source volcano for large Holocene eruptions (Braitseva et al 1997b;Ponomareva et al 2007a;Siebert and Simkin 2002).…”

“…Analyzed samples' IDs are provided right to each column (black font for bulk tephra, blue for glass analyses), and full sample ID is given except for K7-T1 where "K7-T1" is the official prefix for each of these samples. Radiocarbon dates (left side of column) are from Goebel et al (2003), Braitseva et al (1988Braitseva et al ( , 1995, Ponomareva et al (2007b), Pevzner et al (2012), and this study. Regional marker tephra layers: KHG (Khangar volcano, ~7,800 cal BP, Bazanova and Pevzner 2001) and KZ (Kizimen volcano, ~8,250 cal BP, Braitseva et al 1997b).…”

Distal tephrochronology in volcanic regions: Challenges and insights from Kamchatkan lake sediments

“…A 56 detailed tephrostratigraphical framework for Kamchatka has previously been established on the 57 basis of extensive visible tephra layers, all of which derive from Kamchatkan volcanic systems (e.g. 58 Braitseva et al, 1992;1997;Ponomareva et al, 2007). Visible Kamchatkan tephra beds have aided 59 the dating of palaeoenvironmental change on the Peninsula (e.g.…”

A nexus of plate interaction: Vertical deformation of Holocene wave-built terraces on the Kamchatsky Peninsula (Kamchatka, Russia)

“…Marker tephras are chosen for having distinctive combinations of properties, from fi eld characteristics such as color, grain size, thickness, and presence of pumice, to laboratory analyses of mineralogy and geochemistry. In this study, we used in particular the following marker tephras, which have been mapped in the study area and were distinctive in the fi eld (Table 1; Pevzner et al, 1997;Bourgeois et al, 2006;Ponomareva et al, 2007;Pinegina et al, 2012) C dating of organic layers that underlie and overlie the tephra in key reference sections (e.g., Pevzner et al, 1997;Bourgeois et al, 2006). Since tephra layers have been dated using 14 C, the ages have 14 C-dating errors.…”