Ash layer characteristics and major element oxide content of glasses from ODP Sites 162-982 and 162-985@en

The Cenozoic volcanic activity on Iceland has been recorded in North Atlantic sediments drilled during several Ocean Drilling Program (ODP)/Deep Sea Drilling Project legs (Legs 104, 151, 152, 162, and 163). Leg 162 (North Atlantic-Arctic Gateways II) recovered ash layers at Sites 982, 985, and 907 (Jansen, Raymo, Blum, et al., 1996, doi:10.2973/odp.proc.ir.162.1996). The revisited Site 907 was first drilled during Leg 151, and the ash from this site has been described in detail by Lacasse et al. (1996, doi:10.2973/odp.proc.sr.151.122.1996) and Werner et al. (1996, doi:10.2973/odp.proc.sr.151.123.1996). Site 982 is located within the Hatton-Rockall Basin on the Rockall Plateau, which is situated west of the British Isles. Site 985 is located northeast of Iceland at the foot of the eastern slope of the Iceland Plateau, adjacent to the Norwegian Basin. Here we report chemical analyses of Neogene tephra layers from Holes 982A, 983B, 982C, 985A, and 985B. […]冰岛的新生代火山活动已被多项大洋钻探计划（Ocean Drilling Program, ODP）/深海钻探计划（Deep Sea Drilling Project）航次（第104、151、152、162及163航次）钻取的北大西洋沉积物所记录。第162航次（北大西洋-北极门户II）在982、985和907站位采获了火山灰层（Jansen、Raymo、Blum等，1996，doi:10.2973/odp.proc.ir.162.1996）。复钻的907站位最初于第151航次中完成钻探，该站位的火山灰已由Lacasse等（1996，doi:10.2973/odp.proc.sr.151.122.1996）及Werner等（1996，doi:10.2973/odp.proc.sr.151.123.1996）详细记述。982站位位于不列颠群岛以西的罗卡尔海台之上的哈顿-罗卡尔盆地内。985站位地处冰岛东北部，位于冰岛东坡山麓，毗邻挪威海盆。本文报道了982A、983B、982C、985A及985B钻孔中新近纪火山碎屑层的化学分析结果。[…]