| 000 | 00893nam a22002777a 4500 | ||
|---|---|---|---|
| 001 | 7826 | ||
| 008 | 190110s1986 xxu||||| |||| 00| 0 eng d | ||
| 041 | _aeng | ||
| 100 |
_916577 _aReed, Bruce L. |
||
| 245 | _aDescriptive model of porphyry Sn | ||
| 260 |
_aReston, VA _bU.S. Geological Survey _c1986 |
||
| 300 | _ap. 108 | ||
| 490 |
_aU.S. Geological Survey Bulletin _vn.1693 |
||
| 650 |
_9408 _aESTAÑO |
||
| 650 |
_942 _aGENESIS-YACIMIENTO |
||
| 650 |
_9639 _aGEOLOGIA ECONOMICA |
||
| 650 |
_944 _aMODELOS GENETICOS |
||
| 650 |
_91489 _aPORFIDOS |
||
| 650 |
_9426 _aPROSPECCION MINERA |
||
| 650 |
_91741 _aYACIMIENTOS PORFIRITICOS |
||
| 773 |
_023562 _923562 _aCox, Dennis P. _dReston, VA U.S. Geological Survey 1986 _o23562 _tMineral deposits models |
||
| 856 | _uhttps://pubs.er.usgs.gov/publication/b1693 | ||
| 856 | _uUSGS-B-1693.pdf | ||
| 910 |
_aRNUÑEZ _b38868 |
||
| 942 |
_2z _cCAPL |
||
| 999 |
_c7826 _d7826 |
||