LEADER 01142nam  2200349   450 
001 9910703615303321
005 20150414114749.0
035   $a(CKB)5470000002433562
035   $a(OCoLC)907295450
035   $a(EXLCZ)995470000002433562
100   $a20150414d1998      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $2rdacontent
182   $2rdamedia
183   $2rdacarrier
200 10$aRevised grade and tonnage model of carbonatite deposits /$fby Donald A. Singer
210  1$aMenlo Park, CA :$cU.S. Department of the Interior, U.S. Geological Survey,$d1998.
215   $a1 online resource (7 pages) $cillustrations
225 1 $aOpen-file report ;$v98-235
300   $aTitle from title screen (viewed April 13, 2015).
320   $aIncludes bibliographical references (pages 1-3).
606   $aCarbonatites
615  0$aCarbonatites.
700   $aSinger$b D. A.$01387101
712 02$aGeological Survey (U.S.),
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910703615303321
996   $aRevised grade and tonnage model of carbonatite deposits$93471372
997   $aUNINA