DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY

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EXPLANATION

SEDIMENTARY ROCKS

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Sedimenta.ry rocks, undifferentiated

Sedimentary rocks, undifferentiated

IGNEOUS AND METAMORPH IC ROCKS

I ~Te-i I Extrusive rocks

Intrusive rocks

-Metasedimentary rocks Chiefi11 quartzite and ;;imilat rocks which Jurne

undergone slight metamorphic changes.

Coarsely crystalline rocks .il,,J ostly massive granitoid rock$; snm,e slightly

to moderately foliated.

~~~ '7":---~

Schist and gneiss General trend of foliation shown hy curved

linear pattern.

IGNEOUS. METAMORPHIC. AND SEOJMENTARY ROC KS

-Precambrian rocks, undifferentiated

~ --~ Approximate contact

Fault Da.~hed where inferred or indefinite; I.Wtted where

concealed or recognized from subsurface data; queried where doubtful or probable. Haehures are on relatively downthrown .~de.

...................... Low-angle thrust fault

Sawl.ee!h on relatiwly overthrust side.

The following fold symbols are solid where position of fold is known ; da~hed whccre in­clP.finite or inferred; dott ed where concealed or recognized from subsurface data; queried where doubtful or probable. The relative wave length of folds is indic!a led by length of cross arrows.

I ~-?-....

Anticline, showing crest line or trace of axial plane and direction of plunge

....---4----···· /

Asymmetric anticline Short arrow indicates steeper limb.

+ Dome

...---f,--· Overturned anticline, showing trace of axial plane and direction of dip of limbs

l -· ..------r--Syncline, showing position of trough or

trace of axial plane and direction of plunge

,r -···· .............---AHymmetric syncline

Short ILTTC!ll' indfrates xleeper limb.

__;----·· ·· Anticlinal bend of monocline or terrace

Synclinal bend of monocline or terrace

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Broad syncline, showing approximate position of trough and direction of plunge

Dips aF;1;ociated wilh these atructHres are IJ€.ry low; position of trough is shown only within wide limits.

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Joints and small faults, some are filled by veins and dikes

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Clastic dike

Vein and igneous dike

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Intrusive rocks not exposed at surface

® Numbers refer to list of named

structures

+ Ill Uranium deposit, or a locality from

which a sample containing 0.0170 or more uranium has been obtained or from which visible uranium minerals have been obtained Box around symbol indicates dqm1it yielded

1tramum ore.

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Group of uranium deposits or localities .. Direction of plunge of intrusion

LIST OF STRUCTU RES

1. Whitewood anticline 2. Belle Four che anticline 8 . Dry Creek s.Yucl inc 4. Box Elder anticline 5. Crow Creek syncline 6. Red E lm anticline 7. Gust.ave antielinc 8, Gallup Creek dome 9. Lr.mmon 8yndim,

10. Lead - Deadwood dome

11. Hear Mmint,iin dome 12. Harney Peak dome 13. Chadron arch 14. Cedar Creek anticline 15. Flint RoPk anticline 16. Dewey fault 17. Chilflon anticline 18. Casi:ade Springs anticline 19. Philip am.icline

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I INDEX MAP OF WESTERN SOUTH DAKOTA. SHOWING SOURCES OF DATA

Compiled by Arloa Shipman APPROX I MATE SCA 1 E

0 10 20 30 40 MILE S '--- ~--~ - - ~-~

SOURCES OF DATA

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Index Map Numher'

l Balk, H.obert. 1931 lnclw;ions and foliation of ihe Har-ney Peak graniw, Black Hills, South Dakota: ,Tour. GPolog~' V. 39. p. 736-748 .

2 Braddock, Y,'. A ., 1954, writ.ten communication. 3 Bell, Henry, and Kales, \V. F.. , 1955, lTranium deposits

in Fall River County, South Dakota: U. S. Geol. Survey BulL 1009-G , p. 211-233.

4 Berg, R. J., 1946, Pre-Cambrian geology of the Galcna-Roubaix district, Black Hills, South Dakota: clouth Dakota Gcol. Survey Rcpt. Inv. No. 52, 50 p.

28

30 31 32

Moult.on. G. F., 1923, Oil and gas pruspecls in sout hern Perkins County: South Dakota Geo!. and Natural Hist . Survey Circ. 1-1, 12,p.

Noble, J. A., 1952, Structural features of the Black Hills and adjacent areas develorwd Binc<cJ Pr<cJ<·ambrian Lime: Billing3 Geo!. Soc. Third Ann. Field Conf. Guidebook, p. 31-37.

Noble, J. A., written communication. Norton, J, J., 1956. writt en communication.

* 5 B lackstone, D. L., Jr., writt"n communication. Paige, Sydney. 1!)24, Geology of t he region around Lead,

South Dakota, and its bearing on t he Homtistake ore body: U . S. Geol. Survey Bull. 765, 58 p.

6 Darton, N. H., 1902. Description of t he Oelrichs qc1ad-

7

8

" 10

11

•12

13

14

16 17

18

.. 19

20

21

22

23

24 25

26

rangle (S01,th Dakota-Nehra~ka): n. S. Geol. Survey Geo!. Atlas, folio no. 85, 6 p.

Dat'ton. N. H ., 1904, D"i<cript ion of th" Newcastll\ quad­rangle ('Wyoming-South Dakota); U. S. Geo\. Survey Geo!. Atlas, folio no. 107, 9 p .

Darl,on, N. H .. l\l()[i , Description of the Sundance rpiad­rangle (\Vyoming-South Dakota); U. S. Geol. Sur v<cJy Geo!. Atlas, folio 110. 127 , 12 p.

Darton, N. H., 1918, The structure of parts of the eentral Great P lains: l J. H. Geol. clurvey Bull. 6~1-A, 2fi p .

Dart.on, N . H .. 191S, Artesian waters in the vicinity of tht> Black Hilb, South Dakota; U. S. Geo]. 8mvey Water Supply P aper 428, 64 p .

Darton. N. H., 1919, DHscriplion of the Newell 4uad­rangle, South Dakota: U.S. Geo!. Survey Geo!. Atlas, folio no. 209, 7 p.

Dartcn, N. H., 1951, Geologic map of South Dakota: U. S. Geo\. Survey Map.

Darton, N. H., and·O'HH.rra, C. C., 1909, De,~cription of the Belle Fourche quadrang]<cJ, South Dakota; U. S. Geo!. Survey Gr,ol. Atla~, folio no. 164, 9 p.

Darton, N , IL, and Paige. Sydney. 1925, Description of tlrn central Black HillB : U.S. Geol. Survey Geo!. Atlas, folio no. 219. 34 p.

Denson, N. M., Bachman, G. 0., and Zeller. H . D., 19fi!'i , Geologic map of the Slim Butte area, Harding Counly, Sout.h Dakota: U. 8 . Gcol. Survey Coal Inv. :M ap C-35.

Gill, J. R., 1954, written communication. Gill, .J. R., 1955, Geologic map of Rcvn Gap area, Slim

Buttes, Harding County, Som h Dakota, in Geologic investigations of radioactive deposits, semiannual progre~; report, December 1, 1%4 to May 31, 1ll5G: U.S. Geo!. Survey TEl-540, p. 157, issued by U. S. Atomic Energy Comm. Tech . Inf. Service, Oak Ridge, Tenn.

Gill, J, R., and Denson, N. M ., 1955, Lignite investiga-tions; regional synt hesis, Hastern Montana and Nor th and South Dakota, in Geolo,;lc investigations of radio­active deposits, ~emiannual progress rnport, .funH 1 t.n November 30, 1955: U. S. Geol. Survey TEl-590, p. 233-240, issu<cJd hy U. S. Atumic Energy Comm. Tf'rh. Inf. Service, Oak Ridge, T enn.

Gill, J. R. , and Moore, G . W., 1955, Carnoti te-bearing ~andstone in Cedar Canyon, Slim Buttes, Harding Cuunty, South Dakota : U. S. Geo!. Survey Rull. 1009-I, p. 249-264.

Gri,.S, .J. P., 1940, A ~lructural survey of northeastern Stanley County, South Dakota: South Dakota Geo!. SurvP.y Rept. Inv. No. 34, G2 p.

Irving, J . D., and Emmons, S. F., 1904, Econumh: re­sources of the north<J rn Blark Hills, pt. Il, Mining geology; U , S. Geo\. Surv<cJy Pr0f. Paper 26, p. 43-215.

Kepfe rle, R. C., 19.54, Geology of a portion of the White River Badhw ds, P~nnit1gt0n Cour,ly. Sout.h lhkota: unpublished M. A. thesis, South Dakota School of 1\1 ines and T<cadinology.

Kepferle. R. C., and Cliisho\m. W . A., 1955, Lignite investigations, Cave Hills , Harding County. South Dakota, in Geulogic investigations of radioactive de­posits, semiannual progress report, .Tune I to Novem­ber 30, 1955: U.S. Geo!. Survey TEI-590, p. 240-247. iss11ed by U. S. i\tomfr Energy Comm. Tech . Tnl. Service, Oak Ridge, Tenn,

Knechtel, M. M., and Patterson. 3 . H., 19G5. Bentonite deposits of the northern Black Hills district, ).fonuma, Wyoming, and South Dakota: U. S. Geol. Survey ]\'l inera l Inv. Field Studies Map MF 36.

Kunkel, R . P., 1954. Structure contour map of the basn of Mi8sissippian r<Je ks iu t he Williston Hasin an d ad­joining area.~ of Montana, North Dakota, South Dakota, and Wyoming: U. S. Geo!. Survey Oil and Gas Inv. Map OM 11\5.

Kupfer , D. H ., and Langen. R. E., written communicat ion. Lang. A. J ., Jr ., and Redden, J . A., 195;-I, Geology and

pegmad tes of part of the Fourmile area. Custer Counly, South Dakota: U. S. Geo!. Survey Cir<:: . 245. 20 p.

).foor~ , G. W., and Gill, J. l:\, , 1955, GeolDgic map of [he southern part of t he Slim Buttes area, Hardin~ County, Soult, Dak0ta: U. 8. GRol. Hurvey Coal Inv. Map C 86.

Morgan, R. E., and Petsch. B. C., 1945, A ,:eolo,:ical survey in Dewey and Corson Counties, South Dakota: South Dakota Geo] Sur vey Re'pt. of Inv. No. 49, 53 p.

'33

,34

85

36 37

38

38

40

41

42

,14

46

47

48

49

50

51

52

54

55

*56

57

58

60

(jl

Petsch . B. C., 1955, Str ucture map, Slate of South Dakota: Rocky ).fountain Oil Reporter, v. 12, p. 17.

Petsch, B. C .. J 955, Map ul Precambrian 8U!'face, the Stat e of South Dakota: Rocky M ountain Oil Reporter , v.12.p.18.

Petsch, B. C .. and Carlson, L. A. , 1950 , Magnetic obser­vations in South Dakota: Sou th Dakota Geol. Survey Rcpt. Inv. No. 66, 35 p.

Redd€n, J. A. , 1956, writ ten communication. R othro,•k. E. P., Ul30, The Fairburn ~lru.,ture: South

Dakota Geo!. Survey Rept. Ill\· , No. lj, 12 p. (1950 r<'~ ision~).

Rothroc k, E. P .. 1931, The Ca>icade anticline: Sout h Dakota Geol. Survey Rept. Inv. No. 8, 19 p.

Rothrock, E . P., 1937, Structural conditions in Harding County: SouU1 Dakota Geol. Survey Hept. I nv. No. 28, 30 p. (reprinted 1946).

Ruthrock. ~. P., 1931, The Chilson ant.ldim,: South Dakota Geo!. Survey R€p t. Inv. No. 9, 2d. ed. , 26 p .

Rothrock, E. P., and RobinBon, T. R ., 1986, Artesian conditions in west-central South Dakota ; South Dakota Geol. Survey Rept. Jnv. No. 26, 9::: p.

Runner, J. J., 1934, Pre-Cambrian geology of the Nemo · distr ic t , Black Hills, clouth Dakota: Arn. Jour. Sci., 5th ser., v. 28, p. 353-371.

Runner . .J . .J., 1943. Structure and or igin of Black Hills pre-Cambrian granite domes: J our. G€ology, v. Gl, p. 431-457.

Russell, W . L., 1925. The poHHihiliti<'H nr uil i11 we~t.ern Ziebach County: South Dal,ota Geol. and Nat . IIisl. Survey Cir«. 20, 2fi p.

Russell , W. L., 19:C:€. The possib il ities of ojl in western CurHon County: South Dakota Geol. and ,\',.t . Hist . Survey Circ. 27, 18 p.

Rus.~ell. \V L.. 1926, Structu,.es in weste rn Haaknn and ea~tern Pennington Counties: South Dakota GcoL and Nat.. Hist. Survey C irc. 28, 24 p.

Smith. K. G., 1952. Stru<'ture plan of clastir d ik<'s: Trans. 11, m. GeophyRical lJnion, v. :1'.l, p. 892-899.

Smith. W C .. and Pa,;e, L. R.. 1941. Tin-bP:,ring pcg·ma­liWH of th" Tinton d1str id., I.a,vrem·e County. Solllh Dakota; U.S . Geu l. Survey Bi.il l. 922-T, p. 595-630.

Ste VPnsou. R . E., lt'G2 , cltrudure~ and stratigrnphy of southwe~tern Butte County: South Dakota Genl. Sun'P.Y Rept. Inv. No. li9, :J2 p.

Toepelrnan, W, C., 1923, Th~ pos;ibilities <!foil in eastern H~ rding County: South Dakota Qeol. a nd Nat. Hi~t. Survey Cire. ii, 12 p

\Van!. P'reeman. 1!)22. The geoloi::y of a por tion of the Badlands ; South Dakota Geol. and Nat . H ist. Survey Bull. 11. 80 p.

TNanl, Freeman, 192G, Suuct urcs in norlhern Haakon Couni:y; South Dakota Geo!. and N at. Hist. S urvey Cin,. 22. lG p.

Ward, Frnernan, 1925, The st'ructurc of we.qtP. rn South Dakota: Soulh Dako la Geo!. am.i Na t. Hist. S urvey Circ. 25. 7 p.

\Van!, Fretm1an, and Wil~on, 1L A .. 1922 , 'T'hH poss ibili­ties of oil in western D .. wey Cc!unty: South Dakota Geo!. and Nat. His t . Hurvr,y Cir". 9, 10 p.

Wll~on, R. A., 1922. The possibilities of oil in northern D<cJwey County; Suuth Dakot a GeoL and Nat. Hist. Survey Gire. 10, 6 p.

Wilson, !-LA., 1923. Th" bear ing of gP.o log ic f<ca atu res in South Dakota upon oil possibilitrns; Am . Assoc. P0tro­leurn GHologist.s Hul l., v. 7, J>. ~117 -fi16 .

\Vil~on. R. A., 192fi. Oil and gua po~~ib ilit.ie~ in north­eastern Meade Coun ty: SouU, Dakola GeuL and Nat. Hist. Survey Circ. 2:1. 14 p,

\Vilson, R. A., 192!), T hH Ra,;ged Rutte structure (in southwestern Dewey County, South Dakota): South Dakota Geol. t.nd Nat. Hist. Survey Cj rc . 24, 7 p.

\Vinchcncr, D. E .. 191:1 . Cross-bedding in t he White Ri,'"I' forrnalion of 11orthwe8lern South Dakola: J()ur. Geology, v. 21, p. 550-556

'?,,'inch<'ster, D. E., Hares, C. J ., Lloyd, E. R. , and Parks. K ;,I., 191(;, T he lignite field of northwe8tern South Dakota; U. S. Geo!. Survey Hu ll. 627. l 69 p.

Zr,llcr, H. D., 1955, Geologic map of the Bar 1-1 arna, Slim Buttes, Harding Cu unty, South Dakota: U. S. Geol. Survey Conl Inv. Map C :-17.

1 Numbers refer to index map indicating areas to which aoW'eea of data apply. * Onf' asterisk indicates source d!<ta that ~pply to all of w~su>rn Snuth Dakot!<.

**Two ~•tcriaks indicate aourec, data obtain~d from tc,:t only.

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PRELIMINARY TEC'I'ONIC ~fAP OF \VESTERN SOUTH DAKOT~L\., SHOWING THE DISTRIBlTTIC>N 01<' lTRANIUM DEPOSITS INTEmOR - GEOLOGICAL S URV E Y. WASHINGTO N . D C

M R 06 4 l

Compiled from sources of data shown on index map

MINERAL lNVESTIGATlONS FIELD STUDIES MAP MF 128

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