TY - RPRT TI - Systematic variation in the depths of slabs beneath arc volcanoes AU - P. England AU - R. Engdahl AU - W. Thatcher PY - 2004 DO - 10.1111/j.1365-246x.2003.02132.x UR - https://pubs.usgs.gov/publication/70027074 ID - 70027074 ER -