Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences
2016 Annual Meeting of Japan Association of Mineralogical Sciences
Session ID : S1-03
Conference information

S1: Igneous processes and fluids
Origin of rear-arc magmatism at Rishiri Volcano
*Takeshi KuritaniMitsuhiro Nakagawa
Author information
CONFERENCE PROCEEDINGS FREE ACCESS

Details
Abstract

The origin of rear-arc magmatism was investigated for basalts from Rishiri volcano. The estimated temperature of the slab surface, from which the fluids were released, was remarkably higher than those predicted by thermal models. This result, along with seismic tomography results, suggest that the magmatism resulted from the production of large amounts of slab fluids, caused by an injection of hot mantle materials into a fracture in the distorted portion of the plate at the arc-arc junction.

Information related to the author
© 2016 Japan Association of Mineralogical Sciences
Previous article Next article
feedback
Top