U–Pb (ID TIMS) Age of Garnet from Nepheline Syenites of the Yakokutsky Volcano-Plutonic Complex: A New Reference Estimate of Age for Mesozoic Alkaline Magmatism Event of the Aldan Shield
Abstract
Abstract The results of U‒Pb geochronological studies of calcium garnet from nepheline syenites of the Yakokutsky volcano-plutonic complex (the Aldan Shield) are presented. The garnet age is 131 ± 1 Ma and is consistent with the previously obtained age estimates for garnet from kalsilitic ijolites and pyroxene-microcline pegmatites of the Murunsky massif. The results of these studies demonstrate the potential of garnet for reference age estimates of high-K alkaline rocks.
Fields of Study & Subjects
Geological and Geochemical Analysis
Geochemistry and Geochronology of Asian Mineral Deposits
Geological Studies and Exploration
Publication details
- Journal / source
- Doklady Earth Sciences
- Volume
- 526
- Issue
- 2
- Publication date
- 1 February 2026
- Language
- EN