TY - RPRT TI - Ultramafic xenoliths from the Bearpaw Mountains, Montana, USA: Evidence for multiple metasomatic events in the lithospheric mantle beneath the Wyoming craton AU - H. Downes AU - R. Macdonald AU - B.G.J. Upton AU - K.G. Cox AU - J.-L. Bodinier AU - P.R.D. Mason AU - D. James AU - P.G. Hill AU - B. C. Hearn PY - 2004 DO - 10.1093/petrology/egh027 UR - https://pubs.usgs.gov/publication/70026821 ID - 70026821 ER -