no. ra-52 recmssification authorization ...no. ra-52 recmssification authorization in accordance...

NO. RA-52

RECMSSIFICATION AUTHORIZATION

In accordance with the authority delegated to me by memorandum from the General Manager, dated December 6, 1948, subject, "Security Procedures and Policies relating to the Domestic Raw Materials Program1 * and based on criteria for determining classi~ fication, as outlined in Appendix A attached thereto, the docu ment (s) listed below are reclassified as indicated.

Present Classification

Revised Classification

(1) USGS - TEI Report No, 38

(2)

OFFICIAL USE ONLY UNCLASSIFIED"Trace Elements Reconnaissance along Highways in the Tanana and Upper Copper River Valleys, Alaska" by Ho Wedow,. Jr., and J. J, Matzko, dated JViarch 1947

USGS - TEI Report No, 50 - "Staats Fluorspar Mine, Beaver County, Utah (Memorandum Report)" by Donald G* lyant, (undated).

SECRET UNCLASSIFIED

(3) USGS - TEI Report No, 52 "Radioactivity of Sediments in Parts of Oklahoma and Kansas" by Garland B. Gott, September 1948.

RESTRICTED UNCLASSIFIED

t/^f ̂', / /$':>

Date JESSE C. JOHNSONManagerRaw Materials Operations

UNITED STATESDEPARTMENT OF THE INTERIOR

GEOLOGICAL SURVEYWASHINGTON 25, D. C.

4/r/srO- ^/'fi 0A'g^~

SEP 23 1949

L. Harritt,

V. 6. P. 0* tax 30,

lock ^>f

M of ft

t tola 4.

In tb» Ti JUvw Vall^r*,

to la*. Mm 1* (farttfeai in

f f+rmrr 2$f 1949 «^

with hi*

0.

JAN 0 9 2Ct!t

ncrifM IK ! y-1 T !

or TO uram

nuci

TAIAIA AMD U?P« OOPPBR

abnth tedo*9 Jr., and John J

1947

Atotrtot

Introduction

Mat of rtdioaetlrity

falrbank* district

inin th«

«% Hi^nngr belt in U* ^rpu* Ch«Wn1><

Lo0mUti»s MrtfatMtt of Tok JtawfcUa otiihatct of Tok fllmaa »ad Tok

ctudiaa

13

5677

8S9

1114

1617182021222425262828292929333334353536

37

ef ai UrUd 40

TABLE (at and of report)

taala 1. I.oaatJan aad aaaarlpUoo of taut tatla«a> and aquivalawtatWndaatlflM tbaraat, in tha traaa alaaanta

ilca§ aiilraaTa in tha Taaana and mpaar Vall«y§, Alaaka*

1. Indax aap to araa* imreatlgatad along tha alfhamya in taa faaaaa and uppar

Rivar fallays, Alaska -

1* Dlagraa saovlni relationship bstvaan

utarop

3* Oaalofia atetah amp of tht Patra Dew

X* TafMgrapfcia akvUh aap at tfca oaa araa9 FairbanJui dUtrlat, Alaaka -

7. ftaalaffla afcatafc »ap of tba Aaraiaf ttaaarda«i araa, Riamard

of tha JUaaardaoa Biiba Alaaka

, Talrbanks distria*, Alaska - 3

5* Gtolofia atetah aap of tha ifhaay btlt la tha oapar ChatanikaTallty, AUaka ^- . - : ~*. 16

ftaaloflc atetatt aap of DM - - - 20

I. Gtalori* ak«l«a aap of tha Alaakaaaltv aypar taaaaa Vallay^ Alaaka - ~~ 28

OMIafia aioataa aap af taatatvaan fllana and tak JiaeUm, ilaaka 33

nuci ftuBBm iMGamiMan ILOM JUQMUWUP« GttFlft Rim VALUES, ALASKA

a> NaUafth IMav, Jr. AD* Jc*m J. fetafco

fttar %o If4* aaaa laiaraaUoa had baaa obUOaad aa tha radio*

aatirity of aooaantntta froa wiooa pltaai dapaaita ia tha Yioinitgr

IA ma jkia**aa araaaa of tha Gaclogiaal Survey

JJRWP a parted of aaay 7**"f although a fow had

la 1945 apaaifieall^ for tha Traaa Uaaaata profraa by ft. ft*

of UM ftaolofloaJ 9ur?ay duriac a vaaaaaalaaanaa af tha Ii

alaaaF ><agiaa« flat hiajbaay Faaaaaalaaaaaa In 1946 vaa tKa

fint tloa uut Oaifa^ aooatar vaa uaad ia tha fiald ia

AiUtou^h tha praaant rnaana1»anaa did not /iaid aajr fatthar ia*

foramtion on tha aauraa of tha faw aa*plaa of M^har ra^loectirltjr

that had baaa htatnad prwriou«Xy f a flaw naw aUaa «atw found, fwrtbar

raaaanaiaaanao apaaara aiamaary bafora any

for datailad atia|yt ia ordar that tha alaaar and

wark aa? bt doaa at tha aoat fawrahla laaalitiaa* Data for all

rafardlaaa of favorabla ar uafavanhla raaaltaf art praaaatad la

that ftttura imptati^atara aa/ awaJLitata how thorcmctoly r»r^tlTa araaa

radioaottrlty is aoa* rooka ia d*a to a.nall aaoiatta of radioaativa

aanta in atiaa ajj^rala aa airaoaf aiaailta and allaaita*

Ladaa of iilaaiitlif taa«at«^t ailiar, «.nd nn^-coXd «aaoaiatad with

nlphiiaa aad ^atfta* aad aatiaaaj ara nat appraaiatlj radioactlva, but

BOM* of laaatb inoralisfttioB ! tho ttoh Crook aroa «f tho rairbaata

Aistriet aro .ll^ktly oo» Qrajfcltio oofaUt* and bloo* halts in thai

arooo ImflMtlffttoA likavloo aaa« oa^râdaii^ a* iâaihla roc in «b4aliito aa*k tepoaita of radloaî^ amUriAla, altfcoaj* * ^*^ 'or ^haoo

« ' :

two rooJi ^jrpaa aro far too avafar to ba ooaolittiô, Oranitio rooka at

wldaly aaatUrod IoaaliUoa9 nth aa UMI 14abo VTVOJL araa In u»a

Chotanlki falXty, tbo acvbh ahorv of fifth Uk» in tha Hardly

tidiardtOB aroa* and aloaf tho iloaka fti^npay, oontain aoaa

aatoriala* GoBoanw^tâ, pooaibl/ fro* frmaltio

radioa«tii« aatorUIa, haw baon collo«ta4 from Both Crook In tao Uvom*

good araa and from Kona Craok In tao Hfy>r Claitanlka Valla? ara««

Craaitlo" rocJca of ftotoo Ooo» and tho oroo> aooth of Gil»oro Dooo ia tho

Fairbanks diatriet9 hooortrt obooad al«oat ao oootoot of rodiooctlto

oioaonta* Tho rodloaotivo alBaralo slrooat ooamito and olloalto aro

oil aoooooorioo in gran It ia

and upper fop0or M.W *Uoy» AT* in aaat-cantxal ?..Alaska laaa flf, 1) on oppoolto aldoa of tfao Alaska lanfa* Th* taaoaa,

oa tao aorta sio* of tfaa raafo, Hem northwest into tbo Ynkoa Rlwar,

and th* *oppor Hlwr, OB tbt aonlli aW*, fio avuU lot* ua oull of

AimaJtt* B» priMlpal hifhMgr* li AUmka aithar fellan thaa* tM

laya or oroaa tha iniai >aatm upluda* t)laaa tila%ay« and

ooaaalac of a ooXlaotlon of plaoor aoflplaa

froa Alaaka la tao viator of 19U-45 ladl£*tad a fow aitaa la too

falrfcanka and Llvoafood arvaa at *U4h raoioaotiva aatorlala varo

out la otraaa owpooito. auboaquant flald aaryllng by H* A* Ooato of

taw OaoAOKloal flurvty la 1945, durla* a riinnaalioimo of taa Yttkoa-

Taaaaa plaoor ragloa (Fvrtgrall*, Clralo, FAlrbaalBay aad LlTonfood dla»

trloto) t laoraaoM tao aa^bar of aa piaa avallahla fro* taoaa aroaa but

did not rafoal aay addlttaaal altaa of rolstlvtly hl£tUy radio etlva

avaruLl* Infaraatloa on til oat aarplaa wojlob vora Tillablo prior to

too 1944 rooonnalaoanoo la tba Taaaaa aad uppar Coppor Klvar Vailoya

la ayaaarlaad la aa laforaal fUo raport by F. U KUlaoa on

Ilaaaata unr»<t1jaUoai la Alaaka and la

ladloaotlrlty ef aaoplaa coU*oUd

balow.

to 1946

MatrUt totolof aa

of ao0qplaa in of parooct

Ui2i

54 9

1752

UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY

TRACE ELEMENTS INVESTIGATIONS REPORT NO. 38 FIGURE

BOM from U. S. A. A.F. Flight Chart* compiled by U. S. Geological Survey.

INDEX MAP TO AREAS INVESTIGATED ALONG THE HIGHWAYS IN THE TANANA AND UPPER COPPER RIVER VALLEYS, ALASKA

50 9Scale

IB 1946* a raooonaioaanoa for traoo alaoattto in aroa* aoaaaalblo

flpom tha hi^paja In tka Tanana aod vppar Copper ftivor Tall*?* »mo

wadftrtaJoaa baoaaoa tba aooojoibilitgr parmittad oorarinf a larfa aroa

la tha couraa of tfca flald aaaaon aid bsoauaa laf eraation fro* tba araa

balivaMi *-*>* umj«r ZA^B^ ^^. MD^MP Q^MMOT KlMMr MM llbar ijynflCSlAiABi^v^ w*^r~v^» ^^^^^ vmmfmr^^ VMî^VpBVHV V^PBVfr VHPHPW ^^^^^^w^^^* ^W^p^^PW ^^^^^ ^p^v^^^^^^v ^^^^^»^^^^^^^^^^^^^^^F^

ar abaant* tta raa«naiaaanaa had tha folIoalBf vpaaifia okjaotlvtai

1) To tartimn Ua%a of tha mrilmctirtty of Imian plajatr da-

pooita Iw aollaat1a» addlUanal amaanwai^B fro* pUaar araa

radioaotiw aa>plaa ara rvpraaasWd In aollaotlOM aa vail aa

§r«ftla tfeat )ud not yat baan aaaplad.*

fo ^ '^ ^ tâ ^BBDlliftc npaoraji to liieliida mmuad ̂^ ^P^P^^^P^P^^^ ^PM^P ^P^PV^PVM* ̂ PflP^K ^^V ^PJV^ ^"^" W ̂ ^ ^^^^^ V^^V^P^^ ^^p^^^^^^^^ ̂ v

ai^ht aoataln ham«y cnaantraUa but do aot aany fold or otbar

orkabla aatala and hanaa h«va not baan aliiad«

3) To tait kaoam araaa of badrooJc aoiaraiiaatlon of nploua a

»a of intrualv* ifMoipj Moka f and outoropo on hill aloyoo in thaA

rlalnitj of th» ttr%ai aitoa ftroa Ûh rodioaotiva aa^plaa bad boom

Cfcjaotivao 1 and 2 not onl? afford tba aaaBo of aralaatinf tba

a aa poaalbla oonroaa of radlomatiô pmUrUlaf but tba

oonoaotrataa alao aarra a« fuldaa vitaln a draiaafa bail* to oaOrooi

oouroaa of radiooctivo alnarola of biflb opaaifia gravity*

A par*?, oonoUUnt of Baliarth lpda«9 Ar. f aad Jama 4. »mt*kot

and TVad Traltaj, aaapboBd, pma in tbo flaid iroa J*a»

Aaptaabar 1944*

;xvm

IW radioaotiTity of uuUropo of bodronk and gravol, and of

otnplao of tmohod badrook va» Mvgod with a

Uar guana ray eountor (Oft octal) in tho flold* DM

Mthodo, oolonlctloBo, o«4 ooowêy of rooalU in too not of thlj

bavo boos itoonooi<t by ftoo49 y Tooto on oa-ploo

, f. *, frolimlmrj roport on Hold tuttroourt of roJlo» otlrltyi U« s« Gool. Survoj traoo

at baoo oooy» ÔFO ro«i1ng§ vtro not InfluOBOod fc|r 0*9 radlatla*

Ior|o aroao of actorop of tho atorUI OMtpIod* iubooquontly,

oopoimtoo of orwbod rook aoÎos «ad puooi oonc«ntr»Uo of

rook Maploo and poaood oôoontratoo of gravel* and lootlnrad

raok aatorialo voro iBPOpoiod and tootod for radlo*atiyi1gr

by bota oount in tho laobington Imboratory. tmblo 1, appoodod to thio

roport, flvei tho location and description of oaob toat atatlon, loo

radioavtrio dotondnationf wdo at tho rtAtlona and/or on oo>r>loo obtalnod

thorofiroSf and tho oonoontymtiaa ratio of tha lUtlawto ooooontrato of

«hlok tho radloftctiritj vao Maaurad* Iho radioaotiTity throu^howt ia

osparootod in torno of poroant oqulvalont uraniun, abbroriatod to ! U«

0«Urop toata

OvUroa* of both bodroak and frmrml vor* to«tod ftr radioaatirity

by pUoing tha oowWr ttfho o* tha aurfaoa of tho aatorial and

ing tha gaMMNqr oowt for 5 iMtii intorvala* Buokgroand

with tha ootBtor tvte armrml tort *Wv* tte norf «M «f tte

tiae* a day M a d>Mk« Xht f»raral avthod «f «vi«rop U§t-

U< aai U» fbtt

A. U, an« ItoUe^ J. M. f TTMM Iw»ot0 foot* DU«U and ^O^BC PrtlimlBary rapcrti 0. S. teal* fcuwj traaa

oBa tepit. 10, pp. 2-4,

raaulu of ta« jaaaa gay eowt at *aaa outarop, a* tfcgam in Yahla 1,

«qpraaaad IB taraa of pavaaat 1. 0. ( quifmlant wdam) by

fro* a dlagraB.aimilar to tkat «Mi ^y flaagitor aad fclaon.

IA ta« ooartroetiofl of MBA a diafm (aoo fi«. 2) ttoa amafa

ooiaitiKf rato of tho inotruatat that vaa uaod ama dotondaad by

tha «v»raf«a of gro^a of four ctiaaiiitiT» baokcrounAa. Tha

final anrorafi backgronad ma thao plottad on UM dla^raft AS 0,000 paraaai

1« U, Tka 9* Talaaa of a ovaaar of aruamod aaaplaa vora than flattod

agalMt too cMa-rv cowata abtainad at IAO out«r«pa flroa vkioH tha aaa.

plaa war* takaa, Tna iliagnnal lina, ahoving tho jrttoabU rolatltnalitp

boUoott tha K. V« Talua and tha owUrop gaaoa ray oo«at, waa than draam by

incpoetion fro* tha point vbara tha avaraga teokgraoai «M aoaaavd to rop»

raoant 0.000 poraoat X. & Doriation of pointa *o« tho dlagaoal la

attributed aitbar to *^1T^ t*i orrora or to tho randoa natvra of fvaaa

radiation ow ahort porioda of tlao.


GEOLOGICAL SURVEY

TRACE ELEMENTS INVESTIGATIONSREPORT NO. 38

FIGURE 2

0.007

.006

.005 -

.004 -

.003 -

.002 -

.00

0.0000 10 20 30 40

Gamma count per minute on outcrop

50

Diagram showing relationship between the equivalent uranium content of unconcentrated crushed samples and outcrop gamma counts

Book flMplM woro «ruM tc Ua* than A>a»oa in * jew

at tho *alr%aa*» laboratory of tbo Goolociaal domy. *« dotondno

tho I* U. toattnt of tht eriMlMd «MvplM g ilinit^ rMdin^t «f

that

To AjurttM tlM projMrtloB of h*mfy MiiMrmla to W t««Ud for

at may ow

root from both «Uo daapo and vo*thorod

Lator9 to obtaia a otaaiud vpo of aonoontrmtiopotparaticct of miirao

IQigJik atorlal «aro «4o 4» tho UalLUftoo laboratxjry KLth AMIJ

liqjiidi (broacXorm, «p* f. 2«i| MUgrlano iodld»9 9. g. 3«3

and aUo ftparmUd with Iwa^- iiquld*. Xbo paroont X. U. IB tho

roauUaiit hoavy frmetlooo «aa than dttormlaod 07 bota-^aflom coyat with

labcw'a'tory

ARIA* OTKSTKUIKD

Fairtotiu* dlatriet

*ht FairWnkp dijtrUt, horaln dirldad iflU taa Ftdra

(aao f l*a* 1 art 3) «ad taa Ifctar Daa* araa (a*o tit** 1 and 4), la-

MM atovt JOO aquara «Uaa af UrriUry adjaoact to tha ally *

Fairbanks*

5 tad 25 !! acr%h«A«i «f

of th* rtrtaai drmimUg U«

and tlll^tii Hnat tte aftla gtetaM tf«i

Littl« Hdend^ »«ifaad tonlt CrtakB, nortfe-flaidac trUHtarlft« of

Bi« Hdtff«do GrMkf «ad falrtuU^ Flflh^jyrf fttdlvood Cr^ks, trlbt*.

WrUi «f tU UttU ObHM W^r. MiJti]« MM BOV ar« lo«at«! la

f tte aajor Tmlltyi, aad augr of UM gailltr ru**oa mrm mlm& in

ptgt, fte 8tM0» EifkM^f trATUTftiMf tltt «P*A la A g»ntra

rly dirMtiiBf hft» it* oricia at ffclrtoakt «ad IMIWI th«

la flfuff* 3 TU tb* ullaj of Claary Or^k* Tb« ftlUrt

EMd r divwrgw fiw tte Itim Ughmj at th* UtU* atttu-

of F<au feavrto* mnadary r«ada aad tralla laad froa ta« amla

to «1U« af both pa«t aad preatot aiaiaf oparationa*

Iba later Doat «raat ID to 15 !!« «a0t of Fairteaka, la dralnad

ay tribuUri*a af 6«Id*traaa Cfaak oa taa aortkHaat aad by

of Cri^ala Qraak oa taa pMtlMast. Taa area aaa bt nnhtil by a

rtad firoa Fairbanks » aad IMMJPH ifniiry road* aad tralla

oui to baali lad* and plaaar alalaf op^atdooa* A aaall M

iwrry P. 0., laamtad en Utar 0*Mk* la th« oaotar af taa drtdflaf

«porations of tao folrbaahi l^l«ratiaa Popartaoittf Qaltad itataa

. - 8 «^


TRACE ELEMENTS INVESTIGATIONS REPORT NO. 36 FIGURE 3

..

11*0/f

GEOLOGIC SKETCH MAP

OF THE

PEDRO DOME AREAFAIRBANKS DISTRICT

ALASKA

/«- 39,40/1' MOI \

^. 43-451 0-C

EXPLANATION

TO FAIRBANKS

Geology modified from U. S. Geological Survey Bulletin 849~B; minor unconsolidated deposits excluded.

O 42 Outcrop test

CK4I Outcrop test and unconcentrated sample

Outcrop test and concentrated sample

0-62 Outcrop test, unconcentrated sample, and concentrated sample

Numbers indicate stations prefixed "PD" in Table I of text.

12 Miles \

Scale

Base from U. S. Geological Survey Alaska Map 40. Trace elements field work by Htlmuth Wedow, Jr., and J. J. Matzko, June-July 1946.



TOPOGRAPHIC SKETCH MAP

OF THE

ESTER DOME AREAFAIRBANKS DISTRICT

ALASKA

EXPLANATIONO 6

Outcrop test

e

O 29Unconcentroted sample

Outcrop test and concentrated sample Outcrop test and unconcentrated sample

Numbers indicate stations prefixed "ED" in Table I of text

I 0 5 Miles I .... I .... I____________I___________I___________I___________I___________I

Scale

Bast from U. S. Geological Survey Alaska Map 40. Trace elements field work by Helmuth Wedow, Jr.,

and J. J. Motzko, June-July 1946.

jo

JO

TOT '406

CC6T

0& *fl£ *

***« v *

9061 « WT 'tfC '-ftpuv

f *

POT pa*

porphyritl* groMto uadorlyinc a larfo tro* »owlh'iKFioiiliUitit of

Oilaoff* MM. In t!» Hoiaitgr of totor loao only * fow aoall todiM

of porphyrltio graoitio rook* h*io te»n rtporUd. maor tgrptf of if»

M«0 rotki «t 4roproMnitd kr alUrsd grmnltlo dUM thioh «ro BMMT

000 tai oo«tUro4.« All tfco i^aooo^ rook* MTO pvoonaably >§ ! la

« yiipai lido dopoeito IB tho QiJjHro Do»§ mWrvbod .«ro

gold quwrU voifl«» oUaotk volaaf «ad t«K«tO

JJ for the Mot port olOBOly «ooooi*t^ with UM

of gnttito noor OUaoro Oooj§» ftrtoaoiTO Book and goLi»bo%riii«

dopooit* oowr aoot of tho ndloy oettoM ond lovor hill slopoa.

of drodfo toJllags «ro aow onapljaeua m* a rovult of ylaoor

in Uo ralloy bottom of Ooldiriroo^ QUaoro, Podro, Fi»ht

Cloory, ond K»t*rCr»ak», Slopo v

amtmml rook v^pommp go th« hille a rmrit^, caoopt loooU^r at

tho oroftOf ohoro rariouo «oathori«g ofgBoiM hojoj aoulptivod tho

rook Into odd omKollatod ofaopoo*

10

radio*

ttria dotarainatiotia on plaaar CMantrataa, ofetainad chiefly froa f old

isiaf operation*, shovad that *~Ba radloaotira Mtarial oooor* in tho/

Badro Dana araa. Savtn of tha iaPMittrata aav?l*a had «ora than 0.01

paroant &, U. The erotk* tram vfeitli th«a» tetter conc*ntr*U§ «»r»

! mad ths 4it«PBincUjM of B, 0. in U* ona»ntr«t«», an aa

tJ/

353628 lallaw fup

0.100o.ca*0.0X3 0.029 0.0940.013O.QU

nad« about January 1945 i/radatar»ii*d in A^ril 1947 ^ indioaWa fla«pla ooRaldarad too <iill for aoourata

965tideU3939

flp«t ftiaaat Croak SaatUa Pup daary Oroak Jpaeltie

untooom

O.OU6 0.004 0.004

0.024 O.G1B

T»a firat four atraaaa tn tha aJbara tabulation ana parta of taa wat«r«

ted tamt iirrmail OUaora Doaa. (Saa fl£, 3.) Claary Craak and

Saattla ?UT> ara cart of tba vtarihad that mrroanda *»Ara Daa««

Tka npant taatii^ in taa fadro J3ava araa incuc^tad no appraoiabla

of radio^atlvity aaaopt for two aanplaa M follovai

1) X198

LoamUom Station PO 107, Mar toad of ** atttra of « *! * 1*mtfmm cma*n\i ata froa 50 pouoda of1. V. aoataaii 0,066 faraant*Cavparatira datai outorop toatf 0.001 paroant E. U4

2) taa>laLoaatiom» Station ?D U, alaa^ tart sido of tha tUaaa

in tha nOlftj of tiia Crock about six ailai aoHhaaat of Fox.

fetor* of aaMplat ftruaafara oMtmatrate from oruabed mU emteri*! on tap of abandoned aeheelite !&

1, U. contenti 0.013 paraaat.date.* mL\m*y tort, 0.001 percent 1. U.f

eatrate* amaha* ae^ple, 0*002 percent 1, U.

The radioaetrie data of the raaatilig teata in tha

b* pMM

1) OHtartp U«t« (115ft. 0* ««BEliVll 0*003E* 9. Mtoaii 0.001 percent

2} ttMOMMKkltyUrt flFUfllMd TMJfB. 0. tasUntt 0,003B. 9. aontenti 0,002 peromt.

(35O.C04

E. U» MBttnti O.OC25

of mtioh aaj b* uratitMi or thori«»»be&rijkg, ! tha

caly alnaral, aa jrat Idaatiflad im iha aaaaah%iita< «f th* fadro

aram, to «niah radloaotlYit^r aaa ba aaerla«4. Xhua, U Mat of tba

tha jTTiaaaa)a of radiaaatiTa tlreon could *aoa«an for tha Mall

In B« U. aflBtant wham thaj hanry aiaarala a*a aoaiaantrmtad. It appaara

> hovaver, that ao«a otiaar alaaral or alaarala ara raaponalbla for

ft. U. vuluaat gramtar thaa O.d parcaM^ atitiaaad aJboft.

Tha MMentrate fra« Flail CraaJt (aaxpla 355) a«awUta of a faw

amll not^ata b4alaaft froai a plaaaor oawnatiea aJaaul 2| ailaa aorthaaat

of Ollaora Diaa)« AltWugk tha orlfiaal radlooatrla catarmiiKUav mte U

1945 indicated 0.1 aa*aa»t £ O. f a waoaA Uat in 1%7 ahoaad oaly 0,016

paraipt I* U. A qualitatl** apaotrafrapala anMlnatioA of aa» of tha oof

fata ahov that tha aajor alamenta ara biaantfe and ellieooj with tha bl^arth

prapoadaraat. Tha na***** tharafara^ ara prabahly ajaatl/ aUiva hijauth

with aoaa aulTtlta or ngrleolite poaaibl/ present. The fold, liatad a»aa«

tha ainor alaaenta in tha «Baadaatlanf oeeura aa fiae flaJiaa aad wlrea.

12

Uranium and thorium are lifted among those elements lofcked for but not

found, One bismuth lode is known to occur in tha Pish Creek watershed

above tha location of thia concentrate J Ik* lode is in a biotite

J Chapin, Theodore, Loda mining near Fairbanks (Alaska)s U. 3, Geol. Surrey Bull. 592, pp. 330-331, 19U-

granite on the spur along tha east side of Monte Cristo Creek. This lode

was not investigated in the brief reconnaissance of the lodes in the Pedro

DOSJS area, nor ware concentrates taken downstream from it. Inasmuch as

bismuth minerals are found associated with some types of radioactive min

eral deposits./, it is reeommanded that tha sourc* of tha radioactive

J Bastin, E. S., and Hill, J. *., loonondc geology of Gilpin County and adjacent parts of Clear Creek and Boulder counties, Colorado! U. S. Geol. Surrey Prof. Paper 94, Chap. Sf Uranium ores, pp. 121-125, 1917.

Kidd, D. F., and Haycock, M. H., Minaragraphy of the ores of Great Bear Lakei Geol. 8oc. American Bull*, vol. 46, no. 6, pp. 879-960, 1935.

Fish Creek concentrate be sought in the watershed involved. Particular

syhasis should be placed on the bismuth lode already known.

It is r&eommanded, also, that additional work be dona in the vicinity

of tha rtaticns on Rax Creek and Twin Creek where the somewhat radioactive

samples of 1946 ware obtained. The field work, however, should be pre

ceded by more mineralogical work in the laboratory.

Fit* plaaar

aantrataa fro* tha Katar Ptjat ara* that hid baan taatad for rMioactirttjr

frier to tha fUld aaaam of 19*6 raoiad fro. 0.000 * 0.002 parcaot t. 0.

Although auah valtaa art axtraaal^ low, tha aowajp rapraaawtad tor omly

fl^t aaaalaa ama to Mtfli tint it Mt^«d <to«li^la v^ wat *t lM«i 4

of th« kn«vi Lotos MM! ooU»ct m f^w Aditloaal plM^r OM

tte art*. TlM locations *f tte Utti « ^MB en fl«inr% 4,

r««at« art iMlnAM ia tobl* 1.

Mwtvml aoaditiaM tev« liniUd th* W«t MUlli

to tba aoutbMat flank of laUr Doot f andt tbaraforaf both tlaoar aad

lAia^ MtiTitiat haw tean raatrlaUd to thia fUnk. C<maaqaaxiUjr9 taata

for ndioaatiTitgr iMira aialUrly Ioaallsa4.

Maaj of tha alnaa and proapaata In tha Eatar Daaa araa h*v« long

aiaat baao afcaarfoaad^ aodl adita hava csollapaad and oaaii ofapfrean. af

aaaaaltjy thcrafgra« tha taating cf lodaa haa baan raatrlotad to ora aatar*

lala aeattatad ttarough tha alDa diflapa. All of tU fawvn ladaa ara af tha

feld^aarta rariatjt and aarrj, la addition ta firaa gold^ vtrjriaf aaovtta

of primary gulphtrtaa. Araaaofgrlta and atibulU fora tka bulk of thaaa

aoluhldai, bat visor *»otaita of banliijarlti. Jaatinnlta, and aowtllita

bava oaan raportad* J iaatharad parta of tbB vtia* axajdoad ara

HUlf J. M., op. ait. (Ball. I***), pp. 220.152.

talaad with cgidaa of iron, aancanaaa, antiaoaj, aad araania.

Tba datamlaations of ft. 0. la aaUrlala from tMa araa rangad iroa

O e OOC - 0.007 paraaot. Tha aagiaiia mltia waa ototaiaad ia a

14

9**9l* of frml tnm 5t. fetriik

B O 7, MJ*>!« LOC). ! la th» Ndro DOM ar^i, tte

I. 0* ralu§« in Uw <»otntr«i«» M coupKi^d to th* ootcr«p

te fttirUyiUd to tte proportio«a lan^aw ui

«ult«nt from ecneftntr«tiaa»

15

itaaaa Hijbaagr bait la taw appar Chatiftika f allay

Tba portion of tba Staaaa KlfMay aidaaj baUaam fali-hanka and

Ciral* lla* aainlj IB tha appar (B^tanlira VaUay, bat axtania

aaat to tha b««d«RUr portion* of BMW, Birtfc, Bad Fk^Mter

( M fic«« 1 iftl 5«) As cniidtrtd IA this report maA hom on fi«tor« f

telt dJi^Ml U tte IjfiNaj ! «b^t 60 mil«0 l«ng Md 15

tad luu an *r%* of about 100 aquara allaa* la fnavml tha

rapigr oonalata of long, r?*n-t«pp«d rldâa wlta loaf, Iroad, UUral

0tpax«Uat *tdt, aaallav fallaja. Ite tUaai Hifkaay antara th»

af taa fiaatanlka &itar at tha Mwtfc af Claary Craak and follawa

taa fallaj Mrthaaatiard. At U» Iwad af lelteau Oraak tha highaay

BTMMJ U» divlda into UN Yaliaj of tvalfa«ila Graaa of taa Biraa

CraaJi vatardbad. ihart roaia laad from taa hiUraaj to ta* alt* af

dradfiag oâratioaa oa laaa Grata* aad to othar, aaallar plaaar alaaa

an Baap aad ftouraotfn Craaka* Moat of taa abort tra-LLa taat atari

fôa taa bl^na? ava far aaaaaa to tha ralrfeaka figCUraUaa C«vaa7

ditaa« Tha uppar Ghatanika 7all«v ar«a baa f«« UdHabitazita, who ara

îliajad aainljr IB proapaotlivt ana |<* 1|Bfj or in aalatalning tba Falrbanka

ftp>lormtioB . C aayany dltab or tha ataaaa

16r - w. i IUINL 1>OC



GEOLOGIC SKETCH MAP

OF THE

STEESE HIGHWAY BELTIN THE

UPPER CHATANIKA VALLEY, ALASKA

TO CIKCLC

Geology modified from U. S. Geological Survey Bulletins 525, 538, 872, and 907; unconsolidated deposits excluded.

O 37 Outcrop test

4S Concentrated sample

> 40 Outcrop test and concentrated sample

& 4Z Outcrop test and unconcentrated sample

^o-is Outcrop test, unconcentrated sample, and concentrated sample

Numbers indicate stations prefixed "UC" in Table I of text.

TO FAIRBANKS

10 40 Miles

Scale

Bast modified from U. S. Geological Survey

Alaska Maps 27, 38, and 39.

Trace elements field work by Helmuth Wedow, Jr.,

and J. J. Matzko, July 1946.

of tht upper Chatanika *allay la aiaiiar

U that of U» Falrbaaka district. C» Myth Croak taaitt (aoo p. 9)

it a*aln tbt aajor bodroek of the tr«A« A lirgt BMB «f UtrujiTt

gnmitlv rotk of Mitotoia(t) ajt crop* out in Ua* nortb-^tntJpal part

«f tkt arta IA tbt htadiwttr pwtiMa of Mont Qr«tkt and tributaries

of Faith and Pruohtr Craaka* tlxllAr bod itt of rtUtt* l^ntona t«aka

art artaaat at tht haad af amUmajti Grttk and la tte diridt aaparmtinf

tbt Faltt^ Idaho, and Prtaabtr Craak draLnact aroaa. J

J frindli, L. *., atetali of *t §001047 of y» acrtbta^tm part of tbt falrbanka qwdraaiOt (Alaaka)i B. s. CtoX. aarv^ 1*11. 4Uf pp. 2C>209, 1910.

frladit, L. M.^ JCatt, F« J«, aad teith. F* t. A op. oit. (Ball.525, pi.

frifidlt, L, fc. f A goelogie rtoomaiaaaaoa oi ton Cirol* qoad- raaclo, Alaakai U. 3. Cool. Sana? Ball. 53i» pi. 2, 1913.

17

1 plaaar loaaantrata1 abtaiatd f ram ft dra|§a a» MOM Cratk waa tfca

ami? ajpraalafcly radioactita plaMr ÛrUl ftwitlM ufpf <*«U>1irm

UtUd la 19^* IVM *ft«r nvU«r nmntrÛ^ fegr poratien la

Udidt» it contain** ody 0,012 f«romi I* V» Mbnarali of

la thla

«Bd tpftTM

Alibîfli 9» ai4BlTUant uouflU of

la UM % llftagr afâ, ar«aa of UarallaatloD la aad

larft granitU aaa« at tht haaimtart of lava Oaak ahould a

at aaw Aitwa 4aU.

13

T:

araa

Tba Uwiro*! <"*a (aaa figa. 1 and 6), aa aonftidarad i* thia

lapart, geaaltta of * araa about 10 adXaa aquara* Tba torn of

U,*a&*oa4f tba only aattlaaant in tha araa and tha oartham tandaua

af tba Illicit Ijlnav, ia 71 «llaa fôai rear on tba SWaaa fii«bi«y

aad ft? aOlaa Anaa Fairbanka, HM Liânfnod araa im part of tba Tukoa*

ftuauai vplaAd and la aiktVMftarisad by broad* ariv^tflppad riAgaa froai

vfeiab lofif f fMtly alopiac apwa daaaaad to tha îllay floora* Tba

ia draiaad by LUaaôad Oraa4 and tha Tolofaam Kivar of tba) TaaaM

baaia 9 a9d by tribntmriaa of tba th Fork of Haaa Craak,

wbiob in turn ia tributary to tba Xufcon RiT*r. graalgiiij oparationa of

?Uaar«, Ina., aad aavaral larga aoala opaiwaut, hydraulic

ravorklj^ alaia* fomtrly ainad only by oadarfrottai Mtboda

ara tba priaaipal alniaf aajiiTitiaa ia tba area*

20.


GEOLOGICAL SURVEY


FIGURE 6

GEOLOGIC SKETCH MAP

OF THE

LIVENGOOD AREA

ALASKA

Mississippian chert and

silicified limestone

'%#* S / / ' , / -V.--" / ' < /./

" ' ^-Paleozoic 0'&05/C /OK05

/ // / /,s ac. id?)/

undifferentioted / / Devonian, chiefly/ /. /

/ /non-calcareous rocks '

EXPLANATION

013 Outcrop test

® 15 Concentrated sample

CH4 Outcrop test and concentrated sample

CJ 16 Outcrop test and unconcentrated sample

Numbers indicate stations prefixed "L" in Table I of text.

TO FAIRBANKS

Geology modified from U. S. Geological Survey Bulletins 662-D, 872, and 907.

6 Miles

Scale

Base from U. S. Geological Survey

Alaska Map 27.


and J. J. Matzko, August 1946.

Tha ftoloaj of tha J*lvtac*od araa baa baan dlamiaaad la

. J In gvntral tha a+dlaantiry roaka of tha

, A. I,, hnallfliAarj rtpcrt en tha Talovam diatflotU. S. OMl, SUTTV *tU* 642, pp. 201-309,

f J. i., Jr. f tb« gold pU*tr« of U. 5. GMl, Burr»> Bull. 462-* f p*. 22L-277, 1917.

A. M. f PlMMT «i»ia( la tte I. ft. feol, iarvn toll. 712« pp. 177-1*4, 1920.

Martla, J* B«, Jr. f Tha lu^oa-Tanam r««ioii, Alaakat U* B. Gaol. hill. *K, 276 pp., 1937.

C*ppa9 S. R. t (paolao of th« Altaic* JfellroaA raglooi u. &. Gaol,Bun. 907, 2ci pp., mo.

e«lc«r«cua yaroolVB aaquanea liaa to tba acuth of Aay Oaaa f aial

hart «ad ailiaif ia4 liaaatona of alaaia*ipplaa aca Ha to taa nortll of

tba dcM. (Saa fif. 6.) yaOacaolo baa^La ifaaooa rtaka, tbauflrt U ba

both axsrualf* and i&truaiv» 9 ara eloaal^ aaaoaiatad wltk both afa groupa

of tha aooaolidatad Badiwnta. T«rtlai7(^) ffraaltaid roaka,

falaio f Intrula tfc« oldar roaka la tha Tloiaity of Aay Oaaa*

aatlon aad aataMTpaOa atteata attributad to thaaa latar latrujiTM ara

alaarly aaao aloa^ tha diyida aatvaan Uw^aad Craak ai4 tha Talawua

, and oo tha flanka af Aa^

ffcavlcua taata of 30 piac trmUi

ffcgn tha Llwijpod ai*a indloatad aaounta of radioactivity of laaa than

Oud paroant K* U. t aaaapt IB a onMrifcrate f**» OoadliMlr Craak *ian

mtttag trim 0,0X1 » 0.048 paravnt t« 0* Jll^tngh a uraory nlintion

af this MatMlMto priflr to lha bagianinj of iha fiald Maaao of 1946

failad to rvraal angr iaaral i* Îdh tha x*adlo»«tivity eould ba aaeribad,

MT« daUllad itvOr later indlaatad that tha atirlty la dm te a alaakt

alia^ywappaarij^, highly radio^tlTa Klnaral with a oaahoidal firatfturv.

Daaplte tha apparently uaprariLaiiif ^^^^t 1 infor«fctlonf aom fiald

varfc af)f«arad wrraatad for tba pvpaM of a«^platl*c cortraga of th*

mlaaara of tha araa to an attaint to ohtaim ath«r radioaatltv aoMtzitrataa9

and far Uitiac fW of tha atdiaantary aad Igiâm ratka and tha attend

ant late BiJMrmllaatiGxu Tha laoatloM of thaaa aanoantrataa and autcrap

teata art ahavn an fl«vra 69 aod th» ratulta an iaalniad in tahla 1.

A aantantrate ianatad ay a plaaar oparator on Both CrtaJt (atetlon

L 27) «aa tha only plaoar a«ieentrmta obtolnad la 1946 that ttentaina aa

MB aa C.C1 pareât ! U« MUnantary and Ignaona rooâ, f«r

part* aontain laaa than 0.001 paroant &. 9. tqr teata at tha ontorop.

tlaak ahala aontalna 0,002 isareant I* U« and vaatharad frmnita 0*003

paveaot & U. oaaultt of wioua radionatria wata n*4n in 1946 on tha

M0t radioactive aateriala found in tha U*aa*ood araa nay ha

haat aa follcvti

122

uri

Sluioo ooooontratoStation, L 27, ooaplA LU* - 0.010

0,009^

Station L 19, o*JBj»l» U54 - - 0.004

ohml* tatlom L 16a, oojqplo 15531- O.OQt 0.002 0.004

1S43L 0.003 0.005 0.003

A - outcrop _ B - iatta of J/ 0 - testa of biMMifiHB i/ Wats of aottgrloao IMKo oono^ntrmto

txarrnation of tb« oluloo oomoofltroW lUUd

that tho niioaotlTitgr 10 <*" ^ uroaiw- or thorium boarlaf

although a fow grains of onsilto also aro prosont.

Bo f^rthor soarch for rodioo«tlvo maUrial la tbo Uvoacood oroa

for tho ioBsdlat* futvro« lovotor > at BCHM latar 4ato t

osaroU should bo aa4o for tho sooroo of tbo highly rodii

aotivo ol&orol iu tho so^ple froA GoodluoJt Grook* Utor y ocro dotailod

0to»> «f tbo faloosols blaok ohals otraU 107 also bo «arranta4.

23

ardiag

fl» aardiaf Laka-Hlaaarda<» ayaa ( » flea* 1 and 7), rbont 50

outbM.it of Fairbanks, la OB tha nortfcaast aid* of tho Taaana

tet«««a UM lowr eomM of to* isUhft IU.W and tty» CTMJC* Th*

Hlffctaj traTtr«»« tho aroa roueMjr >^T«11>1 to th« tomt of

th* TUMHA &ii«r, taall ttl»««nt« art loottarf at MiAhAnl»on r and it

lireh ana Harain 0 Lak««* Tb» aroa shova IA Hguro 7

400 «{ttm ilo0t bit only a avail fraction of thia IM awlljr

firov tte al^hwa^. FlaMr fold ma firtt aliiMi in Ui« *r*a in tbo aarlj

1900'a, «a\un/ In UM rallay* of tawdarfoot, iwkaT»f and tor Cr«ak»9

and ia tha aaadmWr tribataplat of lUiaaart Caroak, Ca4y oat plaaar aina,

leaatad on alaU 13 telmr on Taaaarfoot OrMkf *aa baJLa* vortod la



NGEOLOGIC SKETCH MAP

OF THE

HARDING LAKE-RICHARDSON

AREARICHARDSON HIGHWAY

ALASKA

Mesoioic(?) granitic

intrusives

> 22 23 ..Richardson . '

A

C'

pre - Cambrian schist

EXPLANATION

Ol9 Outcrop test

(& 12 Concentrated sample

CHO Outcrop test and concentrated sample

O 14 Outcrop test and unconcentrated sample

0--I Outcrop test, unconcentrated sample, and concentrated sample

Numbers indicate stations prefixed "R" in Table I of text.

Geology modified from U S Geological Survey Bulletins 525, 872, and 907

25 Miles

Scale

Base modified from U. S. Geological Survey

Alaska Maps 27, 39, and 49.Trace elements field work by Helmuth Wedow, Jr.,

and J. J. Matzko, August 1946.

Birch &*»k aohUt MA

rotks f«r» U» twdroo* of tt» Jtanlia* Uk»-JtUh*rd

grmnitU

J Prladl*, U V., Ut , F. J. t and 5»likf P. S. f op. alt (Bun. 525), pp. 35, 34, 52, 53, UO-U2, pi. ft.

pi. 1.

pi. 3.

i 3. B., Jr., op. tit. (Jail. 072}, pp. 47-59, 210-215,

, 6. &., op. «it. (loll. 907}, pp. 134, 135, 145, 144,

Birth took oohl*t in thio orot aoaioto ofeiofly of

qportsltlo ookifto, ojoi iatorgrtdotiao* ootmn tfeo two. MLaor rook

typoo in tbo Birch Crook oro «r*phltio oohiot, orjotalliao linootono,

W dorivod from Mdlaoaton rooko. tbo fmô 10 ooiôrod to bo tho

otoaorphio oqmifmloot of pro-Cinfrrloja lntru«iT»o. yuorto Toina, in

port goXdôocri^Ca oro OjOjMOiatod with tho oohiot*

tionj in tha Harting

1) To tort tfco

and any attendant

IB* principal objective* of U»

roa «orot

«f tho fe»oaoia(t) granitic

liaattoB totfc at ovtoropo of bodrook and i» O

too iatruaivt ***

2) To aoqulra ooooontraUa fJroo ooao of tho troaai fonBrl?

tant a* gold prodaoarBj a* thia aroa waa not proviovaij rwprmoomtod IB

tho aurvoy't filo of alaitoaji plaoor ooaoaritratog.

Tho location* of tho outcrop torts aad aitoo of oaaploi

OB flguro 7f aad tho data ootaiood aro Ino^Bdod in taJhli 1. *

of tho data OB tho ao0t radioaotl'* aatoriala f*md la tho Hardlnf

followas

Granltio rook, voatharoitStatloB R la, oamplo U59L 0.006 0.004

-a./-

0.009

Qmitio(l) aU»,fina-gralnod, voatharodt

ttatlom U, oampl. UaOL R 13b, no

0.005 0.008 0.060 0.110 0.005 -

Qranitle dita», ooaroa^fralnodiStation R LU, aa-pl* 1556L 0.005 O.CC4 0.005

OrapaltltStatioB R 25b9 oanplo 1557L 0.002 0.001 0.005

0.001

0.000

andttctiOB R 23,ttatioB R 24, MBplo U65ttatUB R 25*, oaopla

0.0000.030 V 0.009

I/ * - toct« at th» outorov2/ R * totts of VBBoaoontratod eruahad rook aa*pli»ay C tocta of VtuBmCatB ooBoantrato* ft*oa oniBhod roak oaoplo*y D tost* of panBOt OBBoatratM ftroa 100»poB*d oaj^loa of

aiorial oobooquontlj roooaoantraUd with bjua^fnrm J/ MtlB/loBo iodUo maod for final cr-^Hrmtiom Im0toa4 of

^ 26

the radioactivity of the flraaite oft? fca due tc the r«aanM of

teO) vfelaa mre identified IA a prelutlaary etud? of

the onoantratea. Behe*llU i« al«e prmM«t. IttaereJU of InUreft IB

ekeye Creek (*Utlon R 249 Muepte no. U65J an

t rutlle, sircem(t}f

It la ruiBMinlta Uat

UreeJta, acd tfta at yet uuteeted headwater trltatflria* «f

Creak ea ootalaad and tevted for rmdioaotiYity. Ifnaoua ro«Juf pajrilmlarly

the aaidlo typee, and a**otUta4 aliie aliaatlaa ae>o«ld be aoufkt la theaa

vaterabeda aoi aleo aba^kad far radio-otirlty. B«^ty af tke granltla la-

trualTaa tloflg the hifbMgr ahaald to ejrt.tnnadi parUeularly ID tte

Tlalnit/ of Blraft LaJtt.

27

T

/

Tho A^fska Efghrtj bait

Tba Alaska Ufhwqr bait (oao fif s. 1 and I) ocosiats of a lonf

araa aloof tha ^Igbnajr from Bif Bolt* ta tha Canadian boundary,

and is oatiroly vithln too ftrattofo basin of tho tanana ftiwr, Tha

is ruthaoat of tho riw fro* B±c Oalta to a point a fbv ailas

of tok JuaotioBj thora it oroosos tha Tnnaaa lUvor and folloav

Lral^ tho aarthatst banks of tha Cihiaam aivar and SoetUo Qraok

to tho boundary* Tho aajor sattloaaata on tho hlgknmy aro Bif

and Tok Junction; and Bortkvaj * * Ju*^ a&uth of tho

tho Mu«h of tho iabaana Rivor. Also, a fov avail natlvo

aro soattorad alonf tho rl*a* ba«ks»

Ooolsfyi Tno ftolof? of tho araa now oroaoad ty ton Alaaka

(aoo fif. i) has boon partljr daasrlbed and nappad by Itertia J, MoftLtt

J Hortio9 J. B., Ar« t Tba Tukon-Taaana ragion, Alaskai 0. B* Cool. BUIIOJ Boll* JVt, 176 ppw t 1917*

7» l«t GaolOfy of tbo Garatla Ki*ar district, I. t* Gael, 8ur**r BnU 924-B, PP. 1C7-160, 1942.

and Tan Alatina and llaek J* tooa of thla prarloaa oark, hoaowrt vaa

J fan Alftina, &. B* f and UAOX, &. F., Goology ftf tho Alaaka allitar/ Mj>i»a| torn tho IflUraational Boaadary to lt« Oilta, AUtkaJ V. 3. Gaol. Bufioj, tafoMliatsd raport, ltM| aanua^arlyt and aapo i» tte Alaakan Boatiofi filaa.

rorlaad and axUudad in 1946 durtag tho taraoa alaaanto

i(T) pvnitio ifttmalvoa oonatltuta tha bulk of tha

in tho ai£)nav bait* Thaaa latrualrta apparartly omt jro Oiabrlan

ov oafly Falaoaola aokiata and gooiaoaa vhioh aro alallar to and probably

tho aqulmlant of, tho Hjrah Qraok aohUt of tho Yi*OB-Tanajui uplaai.

l TVrrfr

imrootlfatioa of radio-

aotirity in tho Alaa*a JUghomy bolt la 1044 «*» dovotod ohiofly to tho

Itoooooio(l) franitio rooko, for oiwinUaoo i* diooojiion tho oroa io

dirldod into two partoi

1) I^aalitiog Borthvoat of Tok tattle* (otatioao AM 1 A* 15}*

2) LooallUM Oouthoaot of Tok Junction (ftatiea* AH 16 - Afi U).

Tho data oro inoliMlod in tohla 1.

Looolitioo Bcrthooot of Tok Jaaotioni £ho rodioaawio data OB tho

oot rodloaotlvo oatarialo from looalltiao northvaot of Tok Jteotion oro

risad ao followoifaroant X. ,

0.004 o.oog

0.0020.O.

oB MM 15b, ouple

and bonob _ Station AM la, MutOo U69 tatloa AI 2, MHplo U70

AHO.OU0.006

4 * Uoto at tko outorop - tooto of ooBooctrmUs poanod from IQftipmaif oooplso of

3 flaml ocanatffotion md» with Mtlyloao 4/ final oonoantrAtlcB *£ with

of U* of tho ooaoootrmtoo indiootoo tho

f o Binaral whloh BBJ bo rodioootivo.

tabulation a ro firom

A proliMinary

prooonoo of oiitor aaoooto of

All tha fT^wlo liotad ia tho

oroaa uadarlalA Igr graaitio

teoalitloo ooothooj^ of Tok Jtootiani Tho radioMtrio data on tbo

oot ro4ioaetlvo oatoriolo firaa Uoalitioo oovthoaot of Tok

a* folloooi

29

UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SJRVEY TRACE ELEMENTS INVESTIGATIONS REPORT NO. 38

FIGURE 8

GEOLOGIC SKETCH MAP

OF THE

ALASKA HIGHWAY BELT

UPPER TANANA VALLEY

ALASKA

pr»-Pa/earic or early Pateoiic(?) schists and gniissts

EXPLANATION031

Outcrop test

(fr-41 Outcrop test and unconcentrated sample

Concentrated sample

&Z9Outcrop test and concentrated sample

Outcrop test, unconcentrated sample and concentrated sample

Numbers indicate stations prefixed "AH" in Table I of text.

Geology in part from reconnaissance in 1946, and in part modified from U. S. Geological Survey Bulletins 872 and 926-B; unconsolidated deposits excluded.

( menu fi«M work by Htbnuth Widow, Jr.,

ond J. J. Malrto, August 1946.

fervent »qul»»J.«nt ur*niu»i/ i II i V £ 4/_

JtatidB IH 40, MflfOa U90L mA iaapla 154TL

ftatiaa AH 37, ftatioa AB 26, AUtlm Al

Map]* 1443k

AH

0.004 0.001 0.013 0.07i

0.005 0*0640.004 - - 0.0270.003 * - 0.0250.004 0*000 0.023 0.010

0.003 O.OQ3 0,010

A - taria at tha§ - taata of vaMMantratad C - tarta of tan

>lid«tad wUriftl ubaaqiiontly raoi

rock

for final acBoantration in*t**4 of am

, mmw^lM nmiMri UftH. And 1490L in Vfto aftovo

intratad fUrthar 07 rvaorlag a afnttic firactiav vith an

i. Tb» eontant of I, 9. ia tha raanltait m

of tteaa tvo aafipla* vaa than 4atarmXnad ta ba 0.65 and 0.89 poroant,

Lntralogiaal vtvAUa af tba

rocjca ahow %h» yartaaaat of ai*aai in all M»f)l«t froa tba

looalitUa, wuaUj in Urg« aM«t. AltKca^h it ia pfMMMJ that

oaaafttratioi «f tha mUraon ia to a larg> axtaitt napcnatkU tar tte i»-

artaaad raAioaatlvity of tht ooMntraUa, othar Alaakan traaa

hava ahaiM that tht I. i* in pur» airaom fractlona of

ttef and laat, 1. S* f traoa »Ia*Mta lBT«fti«atiaQa

, Savmrd Paaiaaula^ Alaakas U. d. Gaol. 39, «|«hlUhadf wumaaript

30

BMW, N. 0,, Tract almnta ivraatication in tha vicinity of Flat, Alaaka* C. *, tool. OBHBJ traca Ila*ant« Xnva«ti«atioBB **pt

Ipt IB praparatioB*

traUa «aa tamA to ra«f» cnly from 0*1 to 0*15 > *» "* *» » aircoo

«X«aa rriaialy >% iiaimnt far tha WUI radionetiTitj in aaj^Iaa

UCLL a»4 U90L aBBtiaaad abora. JJLLaalU, aftothar alatral rtiUa at ethar

plaaaa la qraaUa* and thorJjaa baariaf» haa teaan iiaatifiad alao in thaaa

tvo oBMrtrataa (aaj^laa U«U> *ad U9a) aa vaOI ma in a third (aaipla

U§JL)« It too ij iiMBia iiwBffloiMtly tBdiaaativB to ba tkt B»J«r

aowaa of tha radloaatlTity in U^ aajqxlM* TB«i»fMi, it U lUnOj tbat

othar, ^ 9 fat mnliantifiad, aort M«hl7 radla ativa Biaarals ara praaaat*

Othar haarr Biaarala af IntaiHiit in tha lOBaintrmtaa ttm tha graaitla

ro«jLj ara apidata, tomaJUaa, and axliata(7)«

31

«tua> of ** it»4tt«l«(7 ) granitic rota* im

Alaska licfcwa? bait appwon to to warranted, Hoi n*t bafov*

in

futtv» oa tbi grmolU

with a

wifely

v*i& ajstaa

IB

with U» «rmmlUa

Mory olnarwla or is liaiwad U.

faaUt of la*

tin

32

Uffcvaj aroa botôoa Jlaaa and Tok JtaatUam

Tbo kl^hoay art* boUaa* ttaaa and Tat JuMtlaa (BOO fiâ. 1 and 9)

lit* aaroaa tbo divide batvoon tfco Oqppar ftivw and Taaaaa Aivor baalaa*

Tbla aav rood, abort 70 ailoa loaf aad kaoan Inf entity aa tbo Tok

wlU tte old te^ffia &«*d ly MJ of

2300 Ibvt *bov

of tte Aluki

taljr hy paok trmiju tW art* la

tkt nk UVMT, a nea-lh-fleml^ trltetarr of tte

aad by tW Aim iU^rf a aouth^flowU^ triOttUX> of too

r^r Mlvor. Onlj a few vhit* lihaMtaitW ar» in UM ar«a, and a

10 Itoatod on th* riMn of Mantajta late.

Tbo foolop o£ ttao araa bttvoon aUaa and Tok

to MaTlt J IB mjunfftlen »lth maityi IA %ho

MolTlt, ?, I., Goolovjr of tht ftlana-Tak dijtrlat, 4la«aai 9, S H PP-,

of tho SUao^Tok dUtritt ! a part of tho

tte Alaska 9Mit> Alom bora bat a MrtfcpBaUrl? troad* Moffit ^/ ftaUai

^ F. 1. 9 op* eit. (Bull. 904), p. 1.

Tfco rtoko of tbo dUtrict ar« prrraillAfly oriUaofttavy but iaolono boda ottS la?m flon aad may MOO* of latruaod 0ranltlo rook»9 aoot 1

of ihiab art dicrito aad rolatod tjpoa ratbor tbaa crmiaw* aoa* of tboa»| aro bl«hly aotoMrphlo« Othoro «ro gfoatly foldod y«t a0i aatably /

tbo o%not«vo 1« ccaylox aad aat elaarlj mdorataod. tbo rooka ! la afo f*oa prt roahrUn or oarly Itlaoaolo to laio Itoaoaeia. IB

alaaoa tbor ava ooaoaalad by Baoont ifltaoaaoULdaôd aatba^XaJLd and claoJLal

33


GEOLOGICAL SURVEY


FIGURE 9

GEOLOGIC SKETCH MAP

OF THE

HIGHWAY AREA

BETWEEN

SLANA AND TOK JUNCTION

ALASKA \

-,-. . '..-.-.- .',' . . iq .-.- '/.Grubstake Cr '-' ' . \_'5/i

<t .-.......- '/

TO NA BESNA

Geology modified from U S Geological Survey Bulletin 904; minor unconsolidated deposits excluded.

EXPLANATION

O 16 Outcrop test

0 18 Concentrated sample

O 19 Outcrop test and concentrated sample

0 12 Outcrop test, unconcentrated sample, and concentrated sample

Numbers indicate stations prefixed "TC" in Table I of text.

30 Miles

Scale

Base from U. S. Geological Survey

Alaska Map 48.


and J. J. Matzko, August-September 1946.

tho dlatrifcvU«a mod a«a of tho rarioua rook typaa aro ahoan em tha

frtlatio atotofc Bap of tho art*. (iM ft*> 9.)

MJOMttXlfcUtaUti* * * ** r»dio ctirlty la tho

th» llano Tok highway «avo aada principally oa ««M»atr«t«t

U tritaUriM «f tte HAIM aad I«k ri^ri. Tb» loMUM* at

a ««r» Utemf ma «U as th« f»v ethar t*«ta en a l«d» daposit,

akoam OB fi^ora 9* Hal data art ineludad IB taBla 1»

XBB Tmloaa ^f 1. 0« IB 20 Bnaanttmtaa iron 4T«v»lt la

Tok hithvB? mram rang* firav 0.000 aoreant to 0.003 patMJrti

0*1X11 paroant. 1 ailvar jara«Ba«t J am Hlwr CfBafc» a aaall trlbotaij

0«ffitf f. H. f op. oit. (Boll. 904, PP. 4*, XT.

of ihtall Orook n*ar Slam, ma mloo tactad fear n*diaaativi»jr« Tho

BlaaraUiBUm oonalafta of aUtor-Dearing quart* v*laa IB a fault aoao.

Tho country rook la thiafly aatiiai iraUH gray dlarlto ajd a dark

bftaaltfa ippoorlBf * * th*t la probably IfvooBa. Ha> MtAllia MiBaraL

rapartod ia too late are tao aolpia4oa9 aphoUrito, pyrito, aad falanat

aad tha ffilrhantiBealda^ tatrahodrlto. Tbo aUvar la jmbahlj aMoaij

with tha ta«rolMdnto. tMta OB avtoriala trm tha ftilmr CJrook lodo

ladloato that tho radioaotlTl^r la laaa thaa 0.001 paroant I. 0. la i

oootratod anuhod aaapla of tho oooatry rook BOOT tho lodo (atatlaa 1C 12o),

ahoaa 0*005 porooat ft. O. f but tho io*fIB aaaaontra.to froa thla

haa only 0.001 povaoat ft. I.

araa, aa eonaidarad In thla rapertt la

trip along tha aiaaardjon Mljfcaay about 70 ailac la laagth bttvaan

illy DOB* oa tha aarth aad Paxaon an tha aoutlu (»aa flf»* 1 aad 10)

It la aralaad by tha Dalta Hlvnr aad ita tribotariat axaapt at tha » *%

outftaxl/ aad atara li Ua« la tha vatarahad af iba 0«lkaaa EiT«rf a tribu

tary of tha flopaar RiYtr. Kauftaiati ara loaatad at Rapida aad

flttlfjxi Tha gaelofy of tha Daaaallj Doaa-Paaaon araa haa

daaorlbad la rapartc of araadtar rafioaaJL aaepa. J laa aortaarn part af

J aoffit, F, h*, Haadaator riflon* of taa Oalkava tad laaitaa Alaakai U. b. Gaol, Sanay tull. 496, 82 pa,, 1912,

Loi'fit, 7, a,. fUalap of tha Qoratlc Rltar dlatrlct, V, 8. u«ol. o mpay Ball, 9BM9 pp, 107*160,

tfea *T«A la undarUla ay aabl«tfl and gaalaaaa of pra-Palaoidte or aarly

faieoaolo agt v «bioh la part aay a» aqulvaJLaat to tha liroa Graa* aoAtat

of tha IttkoA-Taaaaa r«fi«u fa* aovtharm part af tha araa, althoafh

eovarad to a oooaldarabla dagraa ay aaaoaaolldatad glaaial aad flmalo-

fluriAtila dapoaiti, la uadarlain by Carbontfaroua atdiaaiitary rooxa aad

lava*. Granitic reeka, tanilaariil to ba pra-t^rtlary IB a^a, IntrvAa

tha aahlata la tha aorthaaat aoraar af iha araa. Juraaai*(?) latrualTM

of diorltif affinitUt ara aaaoaUtad with tha Caffeaaifbroaa roafca U

tho mulhaffti aart of th* araa v la tha viaiaity af Ooamlly Doaa aad

Jarrla Oraak Tartlary aoal»baariaf aadiaaata aiaiiB>ni aaliljr orarili

of tha aataaanhi/o baaaaaatft oad bath ara oowad with a ^Hf* vaaaar of

glacial datarl*.

35


GEOLOGICAL SURVEY


FIGURE 10

II 1 TO BIG DELTAAND FAIRBANKS

fe <u

Uo> «>>

/// ; |Black Rapids'" ^ *

Glacier .-/ / #

8

£ S ?

GEOLOGIC SKETCH MAP

OF THE

DONNELLY DOME-PAXSON

AREA

RICHARDSON HIGHWAY

ALASKA

50 15I _________1___________|___________1___________1

Scale

Base from U. S Geological Survey Alaska

Map 49.

Geology generalized from U. S. Geological

Survey Bulletins 49B and 926-B,

unconsolidated deposits excluded.

Trace elements field work by J. J. Matzko

and Helmuth Wedow, Jr., September 1946.

EXPLANATION

Concentrated sample; number indi cates station prefixed "RH" in Table I of text.

TO VALDEZ

Tor plaoor cold in tho Doaaolly

boon oarriad o* laUraitta&tay all** about IfCO. Tho aost proaiaiac

traaaa aro Jarria, Obor, ad Jboafcor Crooks, altboofh frsYvl* of

oral othar atrooas aro known al«o to eootala plaMT cold. 10ti?iV la

1944 mt lUit^d to progpÛnt of clîaj on Ob«r Gc^k toy Gha», 0»Rittt

and to ftrmUcjcj by tho T«k«B Corporatign OB tfa* oa«t teak «f tte

Oolta Altvr about a quartor of a Hilt bolov tte acuth of fbalaB QrNk*

|||4Aaj^xU2j||g^§A^ AM oni^ a low daja nor* ml if>frl* tovard

tlM olooo of tbo 1946 flold aaaaon for tha IntoatljatloB of tho Ifconally

OOMO^/tHpOB ax*aa» tho work oonalatod only of tho uFoaurOBoiit of OOBOOA*r -.. i«

trots* ffcw variouj vtroaa gravola. Mo ooBoantrataa Dad Daan aval iablo

for «*4jr prior to tho 1946 flold Ma»cn. Tbo statlonc at *Uh tba

nirataa woro obtain** aro plottod oa flgor» 10, and tho data aro

tbo oottUnt of t. U. In 12 breonf on ooaoactratoa (atatioao M 1-12)

ftro« atraoji crwnwla oo«th of tamolly (ooo fig* 10) nmfog froo 0*000 *

O.UK poroovt aai a^nrmgaa about O.OOa poroaat* tbo K* f Mntont of

four MMoatratoa (stations n 1>15) obtainod trom proopootlac opoTatliio<

on ONF Ciôk ramfii firom 0.003 * 0.011 porooat aad atwmfM abovt 0.004

poroont. Tba radioaotlTltj i» opparonUj duo to tho prvooaoo of !!

q^Mtltioo of MBaalto Ôom WM idor,Uf iod la tba ooMoatratoa. Toma-

Ilao 9 alrooa9 floorito, aad opldota al«o ooour ia Iho Ooor Crook

ooatratoa.

36

* >

Fairhaoka dlatriot ahoojad aiîifinont

looalltiai. Oao, a ooMantnto

rMkf CBtaiMi 0*066

rain MtvUl of a

0.015 Ptri^t 1» V. idditi«MLl

n

of

of

obtalao* from

in taa .

or thortaa at

aia* met fom,

work on iW0» two

teUUtd atodj of tte p^n, i*p«r mUrated of 7Ub

U dot«ndM U» ocMroo of %te blgprt

^lailTy i*pcrtod U «4»Ui& 0.1

to enaUIn O.G04 igtt^ 1U V.

Crlsto

noonir«U ita VOM Crtok IA tko vpptr GkaUnikm

0.012 por«wi 1. 0. vhitii B§J b« 4u* to

. A

MkblM art bo*14or» In Idaho Giôk /UUad O.C17 p«roa«t K. D.

In iÂiôUvt tirMB* ^vibar ftwly of tho gr«a!Ua Intru-

and a^r att.a»iMil Bifl»r%li»a%lo» ID tho

tho hoataator parU of Boa* aad I4aha Orooka la rvo

3) ttnMMLJKMP ^ ^* UVM^«^ ajraa a atelaa

Area teth Oraak aaa 0.01 poraaat 1* B., aad a wpli aoUoctad in OB

oarliar yaar fires 6090400* woo* mova 6.031 - 0.04* poraoai & u. fha

radioaativo Ûrlal LB tho tetto feoak ooaaootraU oaaaa to bo slrocn

ad KJJKU igEMHUaa of Bttamaito, vharaaa that of tha

aaaplt Arv**r« to ba ft bUafc, pito*y> hlfU? radloaotir* miaaral with

ft oonotuunAl frooturo. A braonforo eonoantroto of a aavpla of

MU hlaok halt ahoaod 0.006 poroont ft. 0* *a Author aoorch for

radioactiva aaUrUla la tba Uvpogoad ar»a la ftuuaBaaJid far

laniliU fMora. At MM IftUr <UU, howarar f ft ftflr* d«Ullad

of Ua Coodluak Cra«k vatarahad aod Fvlaoftola ftUak atala ootarop»

ahoiOd ba aa4a*

^) flftFdi|^LâjkaÂiaâjDAaflB;aipaftt OraHl*1!^ roak cm tlia aoBth

bar* of llroh Laka in tha Hardiaf la ha ilaftardian ajpaa aentalaa 0.004

paraaot I* U« on tba atttavap, 0.004 paroant B* U* la ar mnaonaantraUd

awpla 9 aa4 0*009 paraant 1. U, la a affMaatrita fâai ft UX*.

aaoapla of «aathat«d roak. A flno-fr*lnad craJiitie(T) dlk», alaoV

OA tha ac«th iftafo of llroh Uk», aoitaljia 0.005 paroant

tmtad arvafaad oaflfklt 0 «at 0.110 |jo>oo«t I. 0* in ft oanoantrata £roo

ft 100»oa«nA aooaila of aaotharad rook. Hat radiooatlTltgr aay ba aaao

oiatad irlth tha oootoot of airaon aad allaAita(t). A aa&aofttrata

obtftinad from iftckOTa Craok oontaiaa 0.02 paroaat < IT. vhlah aloo la

attrlbvtad to airoom. Additijntl ooBMntrataa abauld ba o&talaad

Bnatetya and Janaay Craoka, and tha hootaaUr trikutariaa of lod*

Craok, md altookad far radioactivity. Ignaoua rooka 9 partiaulmrly

tha aoidie Vpaa9 aad fciaoolalod "linrr-MMt1 ** ahould ba aooîi in

thaaa mUrabada and ahtahad for radioactivity. «tady of tha araaitia

intraaivaa alooe tho hfâoy ahaold ba oaBtiaftad* portlaalarly la

tha riolnlty of iirah Lako.

38

omo obtalnod 1* taoto aorttaaoot of Tok ^unatloa la tho Alaaka

bolt* Thlo aowloBi vnlna omo fotnd la a aootmtmU trcm crawl ia

a stream dralala* aa aroa of iraalUo roc* aad la probabl/ doo to

radioaotivo virooa. loutaajt of Yok JunotioB ooMoatratoa firoa

itlo rook* avarago 0.03X uaroant 1. 0, with a i^rtaiai of 0.07i

oaai* Ibo noa oogmtlB firaatloBo of too of t&o ooaoootratat aTaraf«

0.77 porooat £. V* hroIlftLftwy alaaff^logioal otatlao Indloato tkat

tbo radloaatlrity oay ba too partly to ilroon aod allaaito aoi partlj

to OB ao yit uolrtonttnort oort radloaatlva alotral* furthor otody

of tho aooooio<l) franitlo rooko lo ouf^o«todf partloularl/ la tbo

ootoroD araa« feMtvMn vUtioao * 17 oai Jl 2* of thlo rooort aa« oa-

ao appvoelabl*

of fadloaottvo oatorial oma found in tao highway

featvaao flJaaa aad tok Junction, and ao rttoamaoadatlooo"aro oado f<

toaoiiito oddltioBal »tudy la thla araa.

0«dl porooat « V« tho

la doa to aoall qoaatltioo of aoaaalto* la vlov of tao

aad tao foot tact tho graiola ftroa whioh tho eccooaVato OBJ

oro fooBTBid ftlaolal daorlo, additloaal otoa> of thla oroa In tao

lamodlata fotova dooo aot oooa worrantod*

Qraaitla raaka and flaaaT aaaaaatrato* ara tha only mtariala

taatad la thia raaottniliaaaaa feat cotttalnod aifnlfiaant aaoavta af

radioaati*i amtarlal, Blaak ataala, amrauaaaiaiii or frapfclUa aahiat,

ft Binoraliaad valaa, IOMVI at MM loaalltiaa to haw aaaooiaUd

radioaetlw latarial, MT» «aly aUghtljr rvAioaotit*. HM aaall

«f teatUg of aU roak tjpat, haawari U iaaanoluaiva* A

af taa aaat ilgairiaaat roaalU far toa aaWriala Uata4

af aaUrlal

jranitia roaJtat Fairbanks diatrlet

CattaiHki Vallay araaa

ardiftchi^haajr bait

afaa> aataaanand «ak

Mafic roakat falraaaM dlatrlat Vjpeav Oaatanlia Vallay

WitSlaaa

and Tat Jnaoliaa

Biittrallaad Tiina aidaatarlalt

FalraaBka diatriot Oppar 0»atin1ta Vallaj

Alaak* aalt

aad tak JuaaUait Uj Oaaa.razaoa araa

af paraan

Outarap toata and itratad

0*000 0.001 0,000 0.002 0*000

0.003c.oos0.005 0.006 C.OOJ

0.001 ma taat

0.000 - O.OOQL ac taat

0*0000.002 * 0*003 0.001 - 0.003

0.000 - 0.005 o taat

0.000 . 0.005 aa tast

0.0000.003

aa taat

0.000 - 0.001 no

t 1. V* la

Camaantratad

O.CXtt - 0.0040.0170.003

0.005 * 0.11 0.004 * 0.074

a taat DO taat

ao taat aa taat aa taat

0.004

0.000 ao taat

0.000 - 0.013 no taat

0.000 ao taat ao toat

0.000 no taat

40

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810*0 - 000*0 990*0 - 000*0

TO*0 * 100*0iwro - 000*0TOO'O * 000*0 T00*0 * 000*0coo*o - 000*0

900*0a»*o * 000*0

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800*0 * 100*0

000*0 700*0

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800*0 * 000*0 *0 - tPO*t>

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