Upper-mantle origin of the Yellowstone hotspot Christiansen, Robert L. ; Foulger, G. R. ; Evans, John R. Abstract Publication: Geological Society of America Bulletin Pub Date: October 2002 DOI: 10.1130/0016-7606(2002)114<1245:UMOOTY>2.0.CO;2 Bibcode: 2002GSAB..114.1245C