Magmatism at the Eurasian–North American modern plate boundary: Constraints from alkaline volcanism in the Chersky Belt (Yakutia)

• Published in: Lithos
• Main Authors: Tschegg, Cornelius, Bizimis, Michael, Schneider, David, Akinin, Vyacheslav V., Ntaflos, Theodoros
• Format: Text
• Language: English
• Published: Elsevier B.V. [etc.] 2011
• Subjects: Article; Arctic; Arctic Ocean; Yakutia
• Online Access: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4599627/; https://doi.org/10.1016/j.lithos.2011.04.008

The Chersky seismic belt (NE-Russia) forms the modern plate boundary of the Eurasian−North American continental plate. The geodynamic evolution of this continent−continent setting is highly complex and remains a matter of debate, as the extent and influence of the Mid-Arctic Ocean spreading center on the North Asian continent since the Eocene remains unclear. The progression from a tensional stress regime to a modern day transpressional one in the Chersky seismic belt, makes the understanding even more complicated. The alkaline volcanism that has erupted along the Chersky range from Eocene through to the Recent can provide constraints on the geodynamic evolution of this continental boundary, however, the source and petrogenetic evolution of these volcanic rocks and their initiating mechanisms are poorly understood.