An Early Proterozoic U-Pb zircon age from an Eskolabreen Formation gneiss in southern Ny Friesland, Spitsbergen |
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| Authors: | YU A BALASHOV A N LARIONOV L F GANNIBAL A N SIROTKIN A M TEBENKOV G I RYUNGENEN Y OHTA |
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| Institution: | Yu. A. Balashov, A. N. Larionov, L. F. Cannibal, and G. I. Ryiingenen, Laboratory of Isotope Geochemistry, Geological Institute, Kola Science Centre, Russian Academy of Sciences, 14 Fersman Str., 184200 Apatity, Russia;A. M. Tebenkov and A. N. Sirotkin, Polar Marine Geological Exploration Expedition, 24 Pobeda Str., 189510 Lomonosov-St. Petersburg, Russia;Y. Ohta, Norsk Polarinstitutt, P.O. Box 5072 Majorstua, N-0301 Oslo, Norway. |
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| Abstract: | A preliminary U/Pb zircon age determination has been carried out on a grey gneiss of the Eskolabreen Formation, the lowest observable lithostratigraphic unit of Precambrian metamorphic rocks in southern Ny Friesland, NE Spitsbergen. The obtained age, ca. 2, 400 Ma, is considered to be a metamorphic age and suggests an Early Proterozoic tectonothermal event. |
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