Evidence for deep mantle circulation from global tomography by R. D. van der Hilst and others (source code)

= Evidence for deep mantle circulation from global tomography by R. D. van der Hilst and others
{c}
{tag=Work by R. D. van der Hilst}
{title2=1997}
{title2=10.1038/386578a0}

https://pubs.usgs.gov/publication/70019882

Author-hosted scan: https://hilst.mit.edu/wp-content/uploads/2017/05/1997_nature_386-578-584.pdf