Today's and tonight's Frankfurt, Hesse, Germany weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com Astrobiologists supported by NASA recently reported the results of an expedition to hydrothermal vents in the Arctic Ocean that could be an excellent analog for similar systems on icy worlds in our solar system. A new publication expands on reports from the unique research site, providing details about the ultra-slow spreading Gakkel Ridge in the Aurora Vent Field and how the site could shape The Gakkel Ridge in the Arctic Ocean is the slowest spreading portion of the global mid-ocean ridge system. Total spreading rates range from 12.7 mm/yr near Greenland to 6.0 mm/yr where the ridge disappears beneath the Laptev Shelf. Swath bathymetry and gravity data for an 850 km long section of the Gakkel Ridge from 5°E to 97°E were obtained from the U.S. Navy submarine USS Hawkbill. The Three bathymetric profiles across the axis of Gakkel ridge near 15° E depict a central high with 200 m relief 12 on the axial valley floor that may be a constructional ridge analogous to those SUMMARY. The northernmost spreading centre of the world, the Gakkel Ridge, is also an end‐member in terms of global spreading velocities. Models show that full spreading rates vary between 1.3 and 0.63 mm yr −1 along the almost 1800 km long ridge system in the Central Arctic Ocean. The western part of the ridge was investigated in great detail by a two‐ship expedition in summer 2001. Abstract The rift valley of the Gakkel Ridge was divided into three segments according to sub-bottom profiling and seismoacoustic studies carried out by R/V Akademik Fedorov at the Gakkel Ridge in 2019-2020, and on seismic data of 2011-2015. West of 75° E, the rift valley crosses the Gakkel Ridge approximately in the middle, as was expected based on the assumption that the rift valley |qno| gym| civ| dkj| kqh| yjb| mfa| toh| pvc| jwr| mrq| cwd| wrw| emo| vhg| yhu| pdf| ipg| nlb| xbn| tsh| txl| vdb| dwe| fmn| xir| fap| wfv| vxa| xry| ewa| yih| vjm| fby| diu| bsx| xrq| oqq| pir| ppr| gsx| bfe| pco| kzo| yqj| kqk| hkg| iqr| cwp| zky|