Fig. 2 in Volgian and Santonian-Campanian radiolarian events of the Russian Arctic and Pacific Rim

Fig. 2. Correlation of Upper Jurassic and Cretaceous sequences from the Barents−Pechora region of the Arctic to Sakhalin in the far east of the Pacific Margin. Localities: 1, Mezen Basin, Pesha section. 2, southeastern Barents−Pechora Basin: 2, Narjan−Mar, borehole 5; 2A, Kolguev, borehole 140. 3, Volga−Pre−Ural Basin: 3, Shilovka section; 3A, Gorodicshe section, Uljanovsk region. 4, Northern and western Siberian basins: 4, Polar Ural, borehole 22; 4A, Upper Salym, borehole 17. 5, western Kamchatka and Chukotka: 5, Palana section; 5A, Omgon; 5B, Semiglawaya Mountains. 6, Sakhalin. Abbreviations for Jurassic: k, Callovian; km, Kimmeridgian; ox, Oxfordian; tt, Tithonian; v, Volgian regional stage. Abbreviations for Cretaceous: al, Albian; ap, Aptian; br, Barremian; bs, Berriasian; cn, Coniacian; cp, Campanian stage; h, Hauterivian; st, Santonian; t, Turonian; v, Valanginian.