LEADER 01741nam  2200457I  450 
001 9910711887103321
005 20190124110055.0
035   $a(CKB)5470000002487207
035   $a(OCoLC)1083264928
035   $a(EXLCZ)995470000002487207
100   $a20190124d2018      ua             0
101 0 $aeng
135   $aurcn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aU-Pb geochronology and tectonic implications of a silurian ash in the Farewell terrane, Alaska /$fby Dwight C. Bradley, Julie A. Dumoulin, and Dan B. Bradley
210  1$aReston, Virginia :$cU.S. Department of the Interior, U.S. Geological Survey,$d2018.
215   $a1 online resource (iii, 12 pages) $ccolor illustrations, color maps
225 1 $aProfessional paper ;$v1814-F
320   $aIncludes bibliographical references (pages 10-12).
517 1 $aStudies by the U.S. Geological Survey in Alaska, volume 15
517 3 $aUranium lead geochronology and tectonic implications of a silurian ash in the Farewell terrane, Alaska
606   $aVolcanic ash, tuff, etc$zAlaska
606   $aPaleontology$ySilurian
606   $aGeological time
606   $aUranium-lead dating
615  0$aVolcanic ash, tuff, etc.
615  0$aPaleontology
615  0$aGeological time.
615  0$aUranium-lead dating.
700   $aBradley$b Dwight C$01403293
702   $aDumoulin$b Julie A.
702   $aBradley$b Dan B.
712 02$aGeological Survey (U.S.),
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910711887103321
996   $aU-Pb geochronology and tectonic implications of a silurian ash in the Farewell terrane, Alaska$93475638
997   $aUNINA