00466nam a22001457a 4500008004100000020001500041050002100056100002600077245008600103260003900189300003200228504002000260650001800280700002200298160808b        xxu||||| |||| 00| 0 eng d  a0133510573  aQE 515 .R53 1989  aRichardson, Steven M.  aGeochemistry :bPathways and Processes/cSteven M. Richardson & Harry, McSween Y.  aNew Jersey:bPrentice Hall,c1989.  axxi, 488 p.:bill.;c24 cm.  aIncludes index.  aGeochemistry.  aMcSween, Harry Y.