40Ar/39Ar geochronology reveals that turbidite-hosted gold deposits in the southern Alaska accretionary prism are the same age as nearby near-trench plutons. These early Tertiary plutons and gold lodes formed above a slab window during subduction of an oceanic spreading center. Ridge subduction is a previously unrecognized tectonic process for the generation of lode gold.
- Learn More: https://doi.org/10.1130/0091-7613(1995)023<0995:LBRSAG>2.3.CO;2
- USGS Source: Publications Warehouse (indexId: 70182589)