| OCR Text |
Show Locked - Up Potash. About 2 miles northeast of Super-I Super-I lrr. Womlnp, nn tho Leuclto Hills, I which nro mado up largely of Igen-cous Igen-cous rocks in tho form of volcanic I necks, sheets Intruded Into the stratified strat-ified rocks; and dikes cutting ncross tho sedimentary strata. Associated i with these IntniBlvo rocks nro volcan ic cenea nnd lava Hows. These racks liavo long been oh rcts of scientific Interest because of their unusual character. Lately thoy lime attracted oddltional Inter est by reason of tho potash rich mineral, min-eral, leuclto, they contain, which may some day bo utilized If a process pro-cess can bo found for extracting the potash cheaply. It has been estimated estim-ated that tho igneous rock of the Leuclto nil's contains moro than 197,000,000 tons of potash. Overland Guidebook. Bulletin 012, U. S. Go- ologlcnt Silrvey. 1 |
