Show geology of beaver county investigation of thustin adjacent mining IV imported 0 on byu by V 5 8 sill vay in iii contingence continuo continue nce of its policy of lif ing in the the in ili 1 chiong of tile tho country gil t investigations ot of tile the geologic and tile anturo ut ill tile the oro bodies bod its their modia of at and their pro probable bablo extent the united sta 1 lp 9 Oc ecological survey jno hia published a report on oil tile mid ole de DC pal posits ts of af tile alio hall vr and dja cent utah I 1 cupor 80 drier of chesil d 1 I strict wore made by tho into 8 V emulous load by Wald waldeniar enior lindgren Lintl gron but tile the detailed study of tile hie region has I 1 been carri carritta out by Go IJ 11 H S fl dutler ufler mr butlers But I 1 tit lors leport it a volume of which hicl embodies of work distributed through tareo field boll presents much genera orain tier aloo on the region and may bo call sid add tit 0 especial int interest orest because it a detailed account of tile alio grent iliin hitherto only obe curly anon aminy ati riltia oil I 1 tia stud econ economic ero ornic and oilier ather bral 1 blies fg e 01 0 ay will find land it ib of interest both fur for its tox act t and for the numer 1 one clear cut ind and instruct ne glinstra t thoas 1 ons whit lii it mcl rde lin half tones 8 mid and line imp drawing 4 of geologic mineral associations alternations and oro enrich anent jhc thc lh report is is not so GO for now new or radical ideas na for the at 09 delfinato de finate finato ev evidence eviden identie CB throwing now light on existing exin tint theories its compisi I 1 I 1 sons of tho the districts discussed discus ged with other district dietr ieta e a are also especially I 1 help bell till rat another vole nole worthy feature is ia tile decryption iou of otso several teral win winnins which are new or unusual or occur in in unusual associations but which anro of a antto bir 0 economic importance in the still francisco ana adjacent adja distri districts ctR ta these lello ni leerah mio erale including wurt zito to and be bp averite are adequately described and illustrated and their origin find and ere are discussed he bt 0 tho report rc pir dise discussing orb dp deposits posits is of especial value in show ing the relations of tile the differ different ont types t pee of ore to one another and in in pointing out the limitations both in extent find and value of each type tito tha deposits in elude copper ores odesas its veins eins in quartz and na as contact t depotts depo feita in limestone beds beda alom fl aaros auros mid lid its veins in 0 gnp transition be ovton tile atio na annl I 1 ilver n her load lead deposits it linn stone arc of fill interest the hio discussion of 0 oro ore genesis supplies lioa a missing einmo link ill the 11 ahnin of oid by killi wing tho et otic connection conno betge lot oll typical moll anil and oro ore bodies through transition ut of aplitic mid character tito condit condition tiou lon influx dicing of u tho the ores in ili tile ludia tire next with ch calill lill cal pro pru cowes coes ande iud clini hanges inea in ili metal cun coll tonto and the alic Is illustrated by same very ory instructive half tones show in g ai iti orals ili i ot of the section closes with wine aug bioni us to prospecting and a i well bul bal anaed consideration of 0 the auturo futuro of tho angion aig prospecting and tan l de in bunto places mid ing it in others inot hurb another portion ot of tile tho repel t Is a do to voted to mine luino descriptions by pi plaus niia avd sections Bec tiona which render chotu especially valuably for foi boudy by ull it interested into rested in fit alia of oro do posits A copy of tile the report may bo be obtained treo free on application to tile Dire clur of the ilia survey washington D 0 |