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实验较好地模拟了韧性剪切作用过程中SiO2“释放-局部迁移”的迁移过程。实验结果表明:400℃条件下,绢云母、绿泥石等矿物在韧性剪切作用下分解、释放出大量SiO2,在成矿流体的参与下发生局部迁移、聚集。要使SiO2发生大规模的迁移、富集,还需要一个相对开放的环境(如脆性剪切变形)。
Experiments well simulate the migration of SiO2 “release-local migration” during the ductile shear process. The experimental results show that under the condition of 400 ℃, the minerals such as sericite and chlorite decompose under the ductile shear, release a large amount of SiO2, migrate locally and accumulate with the participation of ore-forming fluid. For SiO2 to migrate and enrich on a large scale, it needs a relatively open environment (such as brittle shear deformation).