| | Journal (article/letter/editorial) |
OCCURRENCE OF SELENIUM IN SULFIDES FROM SEDIMENTARY ROCKS OF THE WESTERN UNITED R. G. COLEMAN AND STATES....... 50! Procedure.for the determination of selenium in sulfides ..................... 501 Geolo................................ Distribution of selenium in the sulfides ................................theseformationsgenerallycontain abnormalamountsof selenium. The selenium content of the pyrite, marcasite, and chalcociteis...oxidation of the selenium-bearingsulfidesand selenidesfrom the ColoradoPlateau and Wyoming, the seleniumforms |
| | Report (issue) |
GEO LOGY AND GOLD DEPOSITS OF THE CRIPPLE CREEK DISTRICT, COLORADO BY \V ALDEl\;IAR LINDGREN A:'\D FREDERIC... . . . . . . . First geological survey of the district .............................. _• . . . . . ..................... Geological structure of the district ............... _................... __ .. _...._____________ ........ . 100 Petrology of the district ______________ . _______________________________________________...___ _ 113 Chapter IV. -General mineralogy of the district . _______________ .... ____ .. ______________ |
| | Report (issue) |
THE COPPER DEPOSITS OF THE CLIFTON-MORENCI DISTRICT, ARIZONA BY w-ALDEMAR LINDGREN WASHINGTON GOVERNMENT... . . . . . . . . . . . . . . . . . . . . . . . Mining _. _................... _.... _... _..... __ ...._________ . ___ .____________________________ Fairbanks claim .. ____________ . ___ ,_______________ . ______...__ •......... _................... ____ Mexican claim ............ ______ . _____ ... __________________...................... __ •. _ 303 IX. METCALF DISTRICT - - - - --.- - - - - -- - - - - •. -.---- •• - |