Show avy rrt ON T rv ifa n A T VT raj T DLO OF OE MI laj BELT ry J F G I 1 IRS R M ar ovis iona barring complex conditions caused by unusual faulting along the foothills on the east and back into the mountains A a distance of from three to logy of the marysvale Marys vale division is easily read it is clearly evident that at some depth the entire range I is with a brohan and ami faulted subs substructure t re of quartzite and that it may bo be credited to the devonian age A small area to the north of the gold ruu run canyon road presents some contradictory evidence the overl overlying ying limestone contains fossils Is credited to an earlier age than the devonian its presence is an enigma and cannot be discussed at this time the preponderance of evidence Js is that the hc area now represented by the tha mt alt idalmy range and its ita northern prolongation the galivan mountains between millard and styler counties wash was under the ocean during the devonian age hundreds hundred perhaps thousands of feet of sandstone was deposited tho the succeeding lower carboniferous period covered the sandstone with a thich bed of limestone attlio att we close of the lower carboniferous M ar Q s aa if V K t r e Y R ayol it a a Y ne 0 p 1 fam nh ae N ia n X t rj irk tt ito A 24 0 j g a v 41 f M bijj 1 0 1 13 D tv n MY i V lay n 5 2 A 0 VRIJ G ta owr OT kw k w j kel V M 0 4 kis 7 1 Ye ABraM A 11 12 wall r 40 rn t M 19 N h 1 1 I 1 f ama I cr 1 0 Z a 0 w cc 5 a ca rt alu 0 wl r wi L AAP MT BAL ay M mar conj a gentle upward movement occurred and the area under discussion rose above the surface of the ocean where it remained duri ing we tite enormous lapse of time that inter enters between the closing centuries of thor lower carboniferous and well along towards the close of the age when tin an almost worldwide change of jeveli occurred along the east side afi of and parallel what ulfat is now known as the mt alt baldy tange range v and its northern prolongation the Pa livain it range the earths eart lis crust was fissured from the surface down to the region of boltl molten n rdell the fissuring was succeeded by faulting and an idea of the tremendous displacement may be formed from the statement that deer brair peak thin highest elevation of quartzite quart zito I 1 is s fully feet lit lither higher her than the valley while the eastern section of the quartzite is buried beneath hundred feet of basalt and other eruptive material ma terral the displacement extended hor northerly therl i a distance of nearly milles miles in sevier valley the sandstone so conspicuous along the east cast side of the mountains is on the east cast side of the valley buried under hun birdd arup y f 1 3 pw v afon material this stupendous displacement ment is known a as the sevier fault in tho the vicinity of marysvale Marys Maryg vale a great fissure on the east cast paralleled the sevier at ault fault and isnow marked by a fringe of basal basaltic tid foothills and volcanic nic activity must have continued over a long period after five quiet reigned along the mt baldy lange the evidences of which are found in the mixture of bf cr bombs bomb sand and debris in a belt of oolite bullion candoni can yoni represents a lateral faulin extend extending ing westerly from the sevier fault the apex of the divide between two filoi and bullion is quartzite and is fully 1500 f feet cot higher than the quartzite quart zito to the north of bullion creek another area of stupendous displacement exists along the cottonwood fault where deer trail Trall peak rises fully 1000 feet above the quartzite on the ridge to the south of Cotton cottonwood wo 0 d the topographical and cross section maps to readers attention is invited will serve to illustrate alethe the profound northerly and southerly faulting of the baste basic formation of ilie th mt B baldy ald ranged range the teachings of geology prove that the dynamical history lii story of the region to tb the west and southwest of marysvale Marys vale Is as follows A large area occupied by sandstone with a lith estone capping Ee Because cause of the shrink age of the earthm molten interior or because of the accumulation of gases seeking lines of easement the crust was fissured fissure dI and broken into bilto enormous fragments ors or blob blocks kcf some of the great masses maintained their position but the larger por tion settled down into the yielding mass of underlying igneous matter from those yawning fissures onor moun masses of and birdseye birds eye porphyry oozed up from the earths melted interior and fo farmed amed mountain mass masses e thou thousandth thousand of feet again the tin unstable stable crust quivered with intense seismic folres corcas the old and but were opened and new fissures lis formed in the overlying ernp tive mass and great dulces of highly min crali zed porphyry now marathe mark the Ib cation and direction of many of those ancient tents rents through the weight of the superimposed super imposed mass of eruptive material the associated heat ancl strong underlying sandstone was altered changed 7 to the now familiar quartzite there are several localities where the sandstone es those agen agencies cles and retains its old t time characteristics and insensibly merges into quartzite quart zito ar aa it nears the ahe igneous for mationg mat ions the brief period of comparative quiet which succeeded the previous lous disturbances was broken by another uplift of the range and along the central portion exten extending din from gold mountain south a distance of some so someren iten miles a great fissure was formed from the surface down dawn to the region oft off liquid fire the mighty 0 force which split the northern portion of the mt alt baldy range also formed lateral fissures extending easterly and westerly from the great central centra JL I 1 rent those fissures became lines of easement for the vast castma mass ss of nl anig ag ma seeking egress anufrom and from molten dep deptner thoi SM the hot gaseous mud flowed upward and f formed form ed great dykes of phonolite which tat to day cheerily clinks under the feet of ani occasional prospector while the i eruption of the phonolite marks the last i throes of na ture in the alt mtr baldy region subsequent i local fissuring of the phonolite occur occurred t and in connection with other fissures already formed became channels for the upu ward vard and lateral flow of gold and silver i bearing solutions extinct craters folds fields of 0 dark 4 cola colored redl tra chite ridges of volcanic breccia dykes and chimneys of obsidian in the phonolite pho nolito prove that loea local volcanic forces wera vera con linued over ovel a long period after the wide spread eruptive activity had ceased i ther the readers attention isnow is now directed more particularly to the topographical and cross section maps while we investigate the 1 economical results of dynamical forces JUB jusic t i described i 4 to avoid confusion the great porphyry Ty 1 dykes only have been mapped and the veins along the itie trend tren doof of those aykes tykes are prominently drawn tae cross section shows the i ide deer trafim I 1 mine occupying a blanket contact which t dips ao to the north at about eight or ten de grees and is hidden by overlying debris in that locality the owners have blocket a bout about tons of ore having an ave averages ragan value vallie of tenor twelve dollars per ton about feet distant to the south many carloads of ore were shipped and which netted the owners several hundred indred lit dollars per ton in lead silver and gold it is believed that the contact derived durive d its filling by solutions e t from the north where eruption rock Is in evidence and probably associated with av a lateral fault the high grade gradd ore to the south doubtless doub doubtless owed its origin to a secondary oil dary movement of solutions which pass passed ed zi T through the large body of ore leached beached lt jt i 4 and transferred the concentrates to td thoi the higher p portion of the contacts contact higher up on the deer trail escarpments i is situated the lucky douthat boy Doy that years ago yielded a large quantity of high grade gad i e mer curial ore the origin of which is an un solved problem ir still higher en cn the mountain side is situated theonice the once famous patito like the lucky luchy doy boy improved it proved to be a surface face depo deposit siti in limestone tife the krowas ore oro was v as almost pure silver and With no reason tor for its presence ence in a locality where conditions arec are c seemingly so unfavorable the first great porphyry orp hyry dyke that tra verses almost the entire district occurs about three miles west westi from the mouth ori of cottonwood canyon and occupies the greats northerly and southerly fault line almonr this dyke is situated the nelson a vein gold bearing quartz that projects above ground like ithe a great greatt wall the branch vein is strong and its per maurency lias has hasteen been proven it yields silver ana gold the standard is 0 a o monster ledge and yields lend lead silver and gold almost excle in sulphide conditions on the northend north end of the dykish dyke is situated the copper belt s to the west of tho the crystal mine and anca 4 trending northerly is a great dyke of por phyra that after traversing the marysvale Marys vale section bends northwesterly into the gold golca mountain district along this dyke is sit oaf f t high grade ore and now has exposed a 15 foot vein that averages 20 per ton tile property is being worked by pittsburg people and ought to develop into a bonanza down on the B bullion buhion creek creak side the dyke forms the hanging wall of tho the webster a monster vein with great chutes of galena and crystallized lead carrying gold and 4 01 cr er oka J L urit cea Z F ross seebon h aw 4 silver space will not permit of any description of the horse heaven and other fine properties along the great webster dyke another monster dyke cuts the country from the east side of mt delano over i into bullion canyon there is a large number of fine properties on they dyke and connig contiguous to it iff A A study of the maps will convince anyone atan at an famil lar with th the e relation between geological conditions and the occurrence of veins and values that the country to the west of marysvale Marys vale presents one of the most inviting Inri ting clems fiol ds for intelligent investment to bia b egund in thle united states GOLD MOUNTAIN DIVISION alighting from the train at sever station on the R G W IV R the observant trav traveler tra velter elbr to cofoid mountain will wi 11 ll notice that the tae rug rugged gad and a nd br broaten olten foothills are composed of basaltic material As one proceeds westward and enters clear creek canyon he will note the me fact that the gorge has been plou sloughed ploughed hed deep in a bed of basalt which chichas chas as robinsons ranch is approached become 4 more alum columnar in its structure the bed bad extends west erly cely from sevier station a distance oi of some fourteen miles where rhyolite becomes the country rock and forms fo the apex of tho range tre the earlier geological conditions oi of they the mt baldy mineral belt are described in the marysvale Marys vale division of the subject and to d 1 if i L v i the basalt extends some three to four miles north of the cany on and Is also bounded by rhyolite an arid d other eruptive rocks the upward climb from robinson nl to gold mountain Mb ib 18 among basaltic buttes weathered to Jan fantastic tustle shapes and highly colored or discolored through the action of strong solutions the basalt extends to within a mile or so osgold of gold mountain and to the stranger is a subject of curiosity interest and study in some localizes loca lites the basalt caps the rhyolite but in a general way it merges so gradually into the rhyolite that no line of mar kation is visible contemporary with the great sevier Sevi cr fault and extending westerly the earths crust was profoundly broken or fissured along a line now represented by clear creek canyon and intersected and crossed by the great fracture which once extended from southwest of marysvale Marys vale along the present apex of the range through gold mountain and onward to the north into the iho ranges iange those principal fissures including innumerable pa parallel fissures were openings for the upward flow of rhyolite and kindred eruptive material prior to the complete solidify solidifying ine of the rhyolite thy olite the clear creek fracture reopened and basaltic material was forced up through the partially congealed rhyolite and andi which explains the blending of the line 0 ot t contact beginning a short distance north morth of tho the asat a R FE elm 49 X Z 7 Z 7 Z af 6 4 4 N Q P JA A we h qt adu qa jr G tot tg V J eh 5 lu I 1 1 I nh 07 i ap Y AL MF ka k ir A at 6 T 13 v ly r 44 n Z J rt 01 ic 00 r V C twi t ca F NAMY k N aj cl t OV topographical A P cf a ar GOL D of A L ET annie laurie see topographical map a belt of birdseye porphyry extends southerly a distance of a mile or two and disappears under the more recent litle rocks to the east of the annie laurie an enormous belt comes in from mt belknap and forms the divide between kimberly basin and the head of 0 deer creek and is also so far as exposure is conce rend the east cast local boundary of the birdseye this peculiar porphyry with its dark based base and with almost white tafv 0 f ri specks species and spots extends westerly oyer over tho the tiptop divide and down towards fish s creek the dip of the magnificent annie laurio lauria vein or veins is towards the west and on that side at a distance of perhaps or 0 feet from the droppings crop pings is a dyke of por phyra entirely distinct from the country variety the locality where the dyke is most prominently exposed is on the hillside to the southwest of at the blue bird tunnel the tiptop divide is the apex of a large dyke of porphyry which occupies a northerly and southerly fissure or line of faulting the great sevier ledge with its r mar marvelous feldus wealth traverses this dyke on a southerly strike and upon which the tiptop and other bonanza claims are situated southwesterly from the tiptop the formation changes the birdseye bird porphyry on the surface at least gives way to rhyolite and tra chite faulting is more conspicuous and explosive volcanic activity more in evidence within this area and well in towards grand old baldy is situated the flue property of the trappers pride the geology of the locality is given by a gentleman intimately intimate Ty associated with the mines and Is ia as follows the country rock is altered which has undergone a series of 0 faulting and thereby tending to make it permeable to the action of mineralizing mineral izing solutions the faults so far as developments have determined are arc parallel with the veins thus far no lateral faulting has been encountered to the cast and southeast of tho the trappers pride and directly dire efly north of mt bel knap is a great field of phonolite nearly all of wiach is highly stained with iron oxide the Toca locality lity yields beautiful specimens specimen a of nephritic phonolite several undeveloped outmost but most promising veins with short tunnels the decomposed filling pans pang gold in mining quantities in a general wa way the gold doia mou mountain faults dykes and veins trend towards that 16 stupendous uplift represented by baldy and belknap and inbi incidentally dentally proves that tho the majority of the lodes are true fissures gash veins occupying as they do shrink ap age cracks in the cooled eruptive rock laela the regularity of strike so conspicuous in the vein system of the major majo r portion of tho the mt baldy region N it was intended to outline the mating formations but lack of time at the last moment prevented the map will 1 however serve to illustrate the |