Early Proterozoic U-Pb Zircon Ages from Basement Gneiss at the Solovetsky Archipelago,White Sea,Russia

作     者：Stephan Schuth Victor I.Gornyy Jasper Berndt Sergei S.Shevchenko Sergei A.Sergeev Alexandr F.Karpuzov Tim Mansfeldt 

作者机构：Geographisches InstitutBodengeographie/BodenkundeUniversity of CologneCologneGermany Scientific Research Center for Ecological SafetyRussian Academy of SciencesSaint-PetersburgRussia Institut fur MineralogieWestfalische Wilhelms-Universitat MunsterMunsterGermany 4A.P.Karpinsky Russian Geological Research Institute(VSEGEI)Saint-PetersburgRussia 5Federal Agency of Mineral ResourcesMoscowRussia 

出 版 物：《International Journal of Geosciences》 (地球科学国际期刊（英文）)

年 卷 期：2012年第3卷第2期

页      面：289-296页

学科分类：0709[理学-地质学] 081803[工学-地质工程] 07[理学] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：funded jointly by the DFG(German Research Foundation)by grant Ma2143-10 to T.M the Russian Foundation for Basic Research to V.G.by grant 09-05-91360-NNIO_g as a part of the project“Energy Supply of Extrazonal Ecosystems” 

主　　题：Solovetsky Archipelago Granitic Gneiss Outcrop Age Determination 2.430 Ga 

摘      要：The central region of the Neoarchaean Belomorian Mobile Belt (BMB) is, except for the Solovetsky Archipelago, largely covered by the White Sea. A newly discovered granitic gneiss outcrop on Solovetsky Island, Russia, enables a first age determination of the archipelago and evaluation of the hitherto poorly constrained central BMB. Zircons separated from the orthogneiss were analysed with SIMS-SHRIMP and LA-ICP-MS techniques. Both techniques yield a concordant U-Pb age of ca. 2.430 Ga, coinciding with ages of granitic intrusions in the BMB ca. 50 km west of the Solovetsky Islands.