Датирование платиновой минерализации
Yakubovich, Olga, et al. "190Pt-4He dating of platinum mineralization in Ural-Alaskan-type complexes in the Kamchatka region: Evidence for remobilization of platinum-group elements." Mineralium Deposita 57.5 (2022): 743-758.
Аннотация
Ural-Alaskan-type zonal mafic–ultramafic complexes are the predominant source of platinum-group minerals (PGM) in alluvial deposits worldwide. Processes responsible for the formation of mm-sized grains of Pt-Fe alloys within these deposits remain a subject of ongoing debate. In this study, the 190Pt-4He dating method is applied to isoferroplatinum from the Ural-Alaskan-type Matysken, Itchayvayam, and Filippa complexes of the Koryak-Kamchatka Platinum Belt in order to determine the timing of Pt mineralization and its relation to the regional and local geologic history of the source rocks.
Танцевальная импровизация: А. Садзик
Алгоритм сонификации: Андрей Рогаль