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UDC 550.42 THE FIRST DATA ON THE U-PB AGE (TIMS AND LA-ICP-MS) OF RUTILE FROM THE ICHETJU POLYMINERAL OCCURRENCE, THE MIDDLE TIMAN Sergei G. 1000, 1660, 18 Ma), but all the rutile types have undergone a common thermal event at ca. Obtained results are consistent with U-Pb zircon data for the Ichetju occurrence and the Pizhemskoe deposit. The First Data on the U-Pb Age (TIMS and LA-ICP-MS) of Rutile From the Ichetju Polymineral Occurrence, the Middle Timan. In the present work, the first U-Pb dating results of the rutile from the polymineral ore deposit Ichetju (the Middle Timan) are given. The polymineral diamond-gold-rare metal-rare-earth-titanium ore occurrence Ichetju is a conglobreccia horizon with a complex spot, striated and lenticular morphology and sustained thickness from 0.2 to 1.5 m.
Key words: rutile; U-Pb dating; TIMS, LA-ICP-MS; Ichetju occurrence; the Middle Timan How to cite this article: Skublov S. The Ichetju rocks show a variety of mineral composition.
Despite the fact that both deposits over the past years are the subject of the geological survey and assessment, as well as various, mainly technological, mineralogical and geochemical studies, the questions of the mineralization genesis and the age are still open [2, 6, 7, etc.]. In situ LA-ICP-MS investigation of the geochemistry and U-Pb age of rutile from the rocks of the Belomorian mobile belt.
The resultant ages were compared with previous U-Pb zircon and monazite age determinations and new mica (muscovite, phlogopite, and biotite) Rb-Sr ages from the same metamorphic terrane. 139, 198-207], versus 400 °C [Mezger, K., Hanson G.
Rutile crystals ranging in size from 3.5 to 0.05 mm with ⩽20 ppm Pb were ablated with a 300-25 μm diameter laser beam.