The 3.5 Ga Siurua trondhjemite gneiss in the Archaean Pudasjärvi Granulite Belt, northern Finland

• Published in: Bulletin of the Geological Society of Finland
• Main Authors: T. Mutanen, H. Huhma
• Format: Article in Journal/Newspaper
• Language: English
• Published: Geological Society of Finland 2003
• Subjects: gneisses; granulites; diorites; alaskite; chemical composition; absolute age; U/Pb; zircon; Sm/Nd; Archean; Siurua; Pudasjärvi; Ranua; Finland; Geology; QE1-996.5; Fennoscandian; Northern Finland
• Online Access: https://doi.org/10.17741/bgsf/75.1-2.004; https://doaj.org/article/1e8b4b41e89d42409638c92dafb77b0f

In the Archaean Pudasjärvi Complex the pyroxene-bearing rocks are considered to form a belt, the Pudasjärvi Granulite Belt (PGB). The major rock types of the PGB are meta-igneous mafic and felsic granulites, and trondhjemite gneisses Red alaskites, white leucogranites and trondhjemitic pegmatoids ar...