Multistage magmatic and metamorphic evolution in the Southern Siberian Craton: Archean and Palaeoproterozoic zircon ages revealed by SHRIMP and TIMS

Multistage magmatic and metamorphic evolution in the Southern Siberian Craton: Archean and Palaeoproterozoic zircon ages revealed by SHRIMP and TIMS

This U–Pb zircon geochronological study using TIMS and SHRIMP dating reveals new insights into the magmatic and metamorphic evolution of the Siberian Craton. Granulites, granites and one migmatite substantiate a multistage history. For the granulites an Archean protolith (3.4 Ga) is documented, foll...

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Bibliographic Details
Published in:Precambrian research Vol. 136; no. 3; pp. 353 - 368
Main Authors: Poller, Ulrike, Gladkochub, Dmitry, Donskaya, Tatiana, Mazukabzov, Anatoli, Sklyarov, Eugene, Todt, Wolfgang
Format: Journal Article
Language:English
Published: Elsevier B.V 22-02-2005
Subjects:
Granulite
SHRIMP
Siberian Craton
Zircon dating
SHRIMP
Siberian Craton
Granulite
Zircon dating
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Summary:This U–Pb zircon geochronological study using TIMS and SHRIMP dating reveals new insights into the magmatic and metamorphic evolution of the Siberian Craton. Granulites, granites and one migmatite substantiate a multistage history. For the granulites an Archean protolith (3.4 Ga) is documented, followed by a first granulite formation at 2.6 Ga. In the Palaeoproterozoic a migmatisation event at 2.0 Ga and two stages of granulitisation and granite emplacement at 1.88 Ga and 1.85 Ga are detected. The latter event (1.85 Ga) is interpreted to mark the final consolidation of the Siberian Craton. Therefore this part of the craton was protected from younger overprints during the assembly of Rodinia in the Mesoproterozoic.
ISSN:0301-9268
1872-7433
DOI:10.1016/j.precamres.2004.12.003