TY - RPRT TI - Platinum-group element abundance patterns in different mantle environments AU - M Rehkamper AU - AN Halliday AU - D Barfod AU - JG Fitton AU - JB Dawson PY - 1997 DO - 10.1126/science.278.5343.1595 UR - https://pubmed.ncbi.nlm.nih.gov/9374452/ ID - 9374452 ER -