Amundsen Basin

Amundsen basin. The nansen basin also central basin formerly fram basin is an abyssal plain with water depths of around 3 km in the arctic ocean and together with the deeper amundsen basin part of the eurasian basin it is named after fridtjof nansen the nansen basin is bounded by the gakkel ridge on the one side and by the barents sea continental shelf on the other. Bulletin of the american meteorological society. 90 n in the amundsen basin of the arctic ocean air 3 8 degc 25 degf water 1 4 degc 29 degf wind 16 knots from n not certain what the n on the meteorological display means considering our location on station 34 at the north pole. The shaler supergroup and back barrier lagoon environments.

The 55 day cruise began in early august from kirkenes norway bound for the nansen and amundsen basins where warmer atlantic water enters the much colder arctic ocean. A new stratigraphic model and estimated sedimentation rates of the western amundsen basin arctic ocean are presented based on multichannel seismic reflection data seismic refraction data magnetic data and integrated with the sedimentary sequence from the central arctic ocean obtained during the arctic coring expedition. The sedimentary succession of the amundsen basin is composed of cross bedded quartzarenite and sandstone entirely within sequence b and is termed the shaler carbonate rhythmite representing sand shoal to barrier beach supergroup rainbird et al 1994a. P strong abstract strong this study provides dissolved and particulate span class inline formula sup 230 sup th span and span class inline formula sup.

Dear family friends and colleagues. This decrease is accompanied by. Nabos research cruise 2018. The amundsen basin with depths up to 4 4 km 2 7 mi is the deepest abyssal plain in the arctic ocean the amundsen basin is embraced by the lomonosov ridge from to and the gakkel ridge from to it is named after the polar researcher roald amundsen together with the nansen basin the amundsen basin is often summarized as eurasian basin.

The contrasting basement structures are related in our interpretation to the differing depositional histories of the two basins and to asymmetric spreading in cenozoic times. After 2007 230 th concentrations decreased significantly over the entire water column particularly between 300 and 1500 m.