000 00756 a2200229 4500
003 OSt
005 20230120164441.0
008 170118b xxu||||| |||| 00| 0 eng d
040 _cIITK
041 _aeng
082 _a557.3
_bUn3b
100 _aMoench, Robert H.
245 1 _aU. S. geology of precambrian rocks, Idaho Springs district, Colorado
_cby Robert H. Moench
260 _aWashington
_bU. S. Govt. Print. Off.
_c1964
300 _aiv,70p
440 _aU. S. Geological survey; Bulletin 1182-A
500 _aContributions to economic geology
500 _aPrepared on behalf of The U.S. Atomic Energy Commission
650 _aGeology -- Colorado -- Idaho Springs region
650 _aGeology, Sratigraphic -- Precambrian
942 _cBK
999 _c457288
_d457288