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QUADRAN GLE LOCAT I ON KAN SAS APPROXIMATE MEAN DECLINATION, 2016 & 4° 19' TRUE NORTH MAGNETIC NORTH & PRELI MI NARY SURFI CI AL GEOLOGY OF THE LI NCOLN QUADRANGLE , LI NCOLN COUNTY , KANSAS Ge ol og y by Robe r t S . Saw i n Co mp ut er co mp ila t io n an d ca r t o gr ap hy by J o hn W. Dun ha ma n d S ar ah F . Child 2 0 1 6 EXPLANATI ON Hydr ol ogy and Top og r ap hy Per en ia l s t r ea m I n t er m it t en t s t r ea m W at er body E leva t ion co n t our ( 2 0 - fo t in t er va l) E leva t ion co n t our ( 1 0 - fo t in t er va l) 1500 Re so ur c e De v e l op me nt Op en gr a vel p it M Qua r r y Ç Tr a n sp or ta ti on Lo ca l r o ad Air po r t r unway Ra ilr o ad S t at e highwa y A F 18 Boun dar i e s and Loc a ti ons Town s hip / r an ge lin e Sect io n lin e Ge ol og i c Fe a tur e s Ca lcit e- cem en t ed con cr et ion s Ge ol og i c Uni t Boun dar i e s Obs er ved co n t a ct Co n cealed co n t a ct Fund e d i n par t by th e USGS Na ti onal Coop e r a ti v e Ge ol og i c Ma p p i ng Pr og r am Op e n- F i l e Re por t 20 16 - 6 6 5 2 4 3 1 5 6 7 8 9 10 8 11 7 12 18 17 16 15 14 17 18 13 20 19 21 22 23 19 20 24 30 29 28 27 26 30 29 25 31 32 33 34 35 32 31 36 6 5 4 3 2 5 1 6 7 8 11 12 10 7 9 8 18 17 14 15 13 17 16 18 19 20 23 22 24 20 21 19 R 8 W R 7 W R 8 W R 7 W T 11 S T 12 S T 11 S T 12 S A F 18 A F 18 A F 18 A F 14 A F 14 A F 14 A F 14 KANSAS & OKLAHOMA RAILROAD KANSAS & OKLAHOMA RAILROAD KANSAS & OKLAHOMA RAILROAD LI NCOLN Go l de nr od Lincoln Municipal Airport 1600 1600 1500 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1500 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1500 1500 1500 1500 1600 1600 1600 1600 1500 1500 1500 1600 1400 1400 1400 1500 1500 1600 1500 1400 1500 1600 1600 1500 1500 1500 1500 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1500 Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgr Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kgh Kd Kd Kd Kd Kgr Kgr Kgr Kgr Qal Qal Qal Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Qal Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Kc Qal Qal Qal Qal Qal Qal Qal Qal Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kd Kc Kc Kgh Kgh Kd Kd Kc Kgr Kgh Kgh Kgh Lo s t Cr eek P r o s se r Cr ee k Y a u g e r C r e e k L o s t C r eek S pill ma n C r e e k L o st C r e e k Y a u g e r C r e e k SAL I NE R I V E R SA L I N E R I V E R S A L I NE R I V E R SA LI N E R I V E R B u l l f o o t Cr eek B u ll f o o t C r e e k L o s t C r e e k Y a u g e r C r e e k Y a u g e r C re e k P r o s se r C r e e k S p il l m a n C r e e k B a tt l e C r 39°00' 38°00' 98°07'30" 97°07'30" 39°07'30" 98°15' 39°07'30" 98°15' E leva t ion con t our s ar e p r es en t ed fo r gen er al r efer en ce. Us ed in t he U . S . Geo logica l Sur vey s cur r en t US Topo 1 : 2 4 , 0 - s ca le t opogr aphic m ap s er ies , t hey wer e gen er at ed fr omhydr ogr aphica ly- im p r oved 1 / 3 ar c- s econ d N at ion al E leva t ion Dat as et ( N ED) da t a, an d s mo t hed dur ing p r o ces s ing fo r us e at 1 : 24 , 0 s ca le. I n s ome p la ces t he con t our s m ay be mo r e gen er a lized t ha n t he bas e da t a us ed fo r comp ila t ion o f geo logic out cr op p at t er n s . Out cr op p at t er n s on t he m ap wil t yp icaly r eflect t opogr aphic va r ia t ion mo r e a ccur at ely t ha n t he as s o cia t ed con t our lin es . Rep ea t ed fluct ua t ion o f an out cr op lin e a cr o s s a con t our lin e s hould be in t er p r et ed as an in dica t ion t ha t t he m ap ed r o ck un it is m ain t a in ing a r ela t ively con s t an t eleva t ion along a gen er a lized con t our . 1 - mL iDAR hils ha des an d 1 - m2010 an d 201 2 U . S . Dep ar t m en t o f Agr icult ur e F ar mSer vices Agen cy ( USDA- FSA) N at ion al Agr icult ur e I m a ger y P r ogr a m( NAI P ) digit al im ager y wer e us ed as r efer en ces in t he digit al m ap ing. USGS 7 . 5 - m in 1 : 24 , 0 - s cale t opogr aphic m ap s , USDA N at ur al Res our ces Con s er va t ion S er vice ( N RCS ) s o il s ur veys , an d o t her geo logic m ap s an d b ulet in s wer e us ed t o s up lem en t t he m ap ing. Ro a ds an d highwa ys ar e s hown on t he bas e m ap as r ep r es en t ed by da t a fr om t he Kan s as Dep ar t m en t o f T r an s po r t at ion ( KDOT ) , U . S . Cen s us Bur ea u, an d o t her s our ces . U . S . Dep ar t m en t o f Agr icult ur e F ar m S er vices Agen cy ( USDA- FSA) N at ion al Agr icult ur e I m a ger y P r ogr am ( NAI P ) im ager y a ls o wa s us ed t o check r o ad lo ca t ion s . Shaded r elief is bas ed on 1 - m et er hydr o fla t t en ed bar e- ea r t h DEMs fr om t he S t at e o f Kan s as L iDAR Dat abas e. The DEM im ages , in ERDAS I MAGI NE fo r m at , wer e mo s a icked in t o a s in gle out put DEM, do wn s am p led t o 2 - m et er r es o lut ion , an d r ep r o ject ed t o decim a l degr ees . The out put DEM wa s t hen con ver t ed t o a hils ha de, a m ult idir ect ion al s ha ded- r elief im age us ing angles o f ilum in at ion fr om 0 ° , 25 ° , 270 ° , an d 315 ° azim ut hs , ea ch 45 ° above t he ho r izon , wit h a4x ver t ica l exa gger at ion . This geo logic m ap wa s funded in p ar t by t he USGS N at ion al Cop er at ive Geo logic Ma p ing P r ogr am , a wa r d n um ber G15AC0258 ( FY20 15 ) . This m ap wa s p r oduced us in g t he Ar cGI S s ys t emdevelop ed by Es r i ( En vir onmen t al Sys t em s Res ea r ch I n s t it ut e, I n c. ) . This m ap is a p r elim in ar y p r oduct an d ha s ha d les s s cien t ific an d ca r t ogr aphic r eview t ha n t he Kan s as Geo logica l Sur vey s M- s er ies geo logic m ap s . KGS do es n o t gua r an t ee t his m ap t o be fr ee fr om er r o r s o r in a ccur a cies an d dis claim s any r es pon s ib ilit y o r lia b ilit y fo r in t er p r et at ion s m a de fr omt he m ap o r decis io n s bas ed t her eon . SUGGESTED REFERENCE TO THE MAP S a win , R . S . , 2016 , P r elim in ar y s ur ficia l geo logy o f t he L in co ln quadr angle, L in co ln Coun t y, Kan s as : Kan s as Geo logica l Sur vey, Op en - F ile Repo r t 201 6 - 6 , s cale 1 : 24 , 0 , un publis hed. 1000 0 1000 2000 500 METERS 1 0 1 2 0.5 KILOMETERS 1 0 1 0.5 MILES 1000 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 500 FEET UNI V ERSAL TRAN SV ERSE MERCATOR PROJ ECT I ON, ZON E 14 N ORTH AMER I CANDATUM OF 1 983 SCALE 1 : 2 4 0 6 8 7 9 3 2 4 1 5 11 13 14 12 15 10 20 16 19 17 18 LINCOLN COUNTY QUADRANGLES 1 Hunter 2 Ash Grove 3 Lincoln NW 4 Barnard 5 Ada 6 Sylvan Grove 7 Vesper 8 Lincoln 9 Shady Bend 10 Tescott 11 Wilson NW 12 Wilson NE 13 Westfall NW 14 Westfall 15 Juniata 16 Wilson 17 Black Wolf 18 Westfall SW 19 Westfall SE 20 Brookville SW Qal Kd Kc Kgh Kgr These descriptions are a compilation of several sources, including field notes and measured sections, Kansas Department of Transportation geological reports and profiles, and lithologic descriptions in Berry (1952), Bayne et al. (1971), and Arbogast and Johnson (1996). GEOLOGI C UNI TS CENOZOI C Qua te r nar y Sy ste m P l e i sto c e ne - Ho l oc e ne A l l uv i um and te r r ac e val l e y f i l l Aluvium and t er r a ce va ley fil ar e found along t he S a lin e R iver and it s t r ib ut ar ies . F lodp la in dep o s it s con t a in mo s t ly s ilt and cla y wit h s ome s and. The t hickn es s o f t he a luviumr anges up t o 60 ft ( 18 m) in t he S a lin e R iver va ley and 20 ft ( 6 m) in o t her m ajo r t r ib ut ar ies in t he coun t y ( Ber r y, 195 2 ) . MESOZOI C Cr e ta c e ous Sy ste m Uppe r Cr e ta c e ous S e r i e s Car l i l e Sha l e The Car lile Shale co n t a in s t hr ee m em ber s . I n as cending o r der , t hey ar e t he F a ir po r t Chalk Mem b er , t he B lue H il Shale Mem b er , and t he Codel S ands t on e Mem b er . On ly t he lower p ar t o f t he F a ir po r t Chalk Mem b er is p r es en t in L in co ln Coun t y, wher e it is up t o 20 ft ( 6 m) t hick and ver y s im ila r t o t he up er b eds o f t he Gr eenho r n L im es t on e ( Ber r y, 1952 ) . I t con s is t s o f a lt er n at ing b eds o f t hin , con cr et io n ar y lim es t on e and cha lky m udr o cks , as wel as t hin b en t on it e la yer s . The Car lile Shale ca p s t he high hils in t he no r t her n and s o ut hwes t er n p ar t s o f t he coun t y. Gr e e nhor n L i me ston e The Gr eenho r n L im es t o n e con t a in s t he fo lowing four m em ber s , in as cending o r der : t he L in co ln L im es t on e Mem b er , t he Har t land Shale Mem b er , t he J et mo r e Chalk Mem b er , and t he P feifer Shale Mem b er . Each m em ber is 15 t o 20 ft ( 5 t o 6 m) t hick. The con t a ct s b et ween t he m em ber s ar e gr a da t ion al and no t ea s ily r ecogn ized in t he field. I n gen er a l, t he Gr een ho r n is light gr ay t o yelowis h- gr ay cha lky lim es t on e, cha lky m udr o ck, and cha lk. S ever al lim es t on eb eds con t a in t hefo s s il cla m Inoceramus s p . t ha t is cha r a ct er is t ic o f t he fo r m at ion . The lower p ar t o f t he Gr eenho r n ( L in co ln Mem b er ) is in t er b edded la yer s o f cha lky m udr o ck, cha lky lim es t on es , and da r k gr ay cr ys t a lin e lim es t on e n ea r t he bas e t ha t ha s as t r ong p et r o lifer ous odo r when fr es hly br oken . The m iddle p ar t ( Har t land and J et mo r e Mem b er s ) is cha lky m udr o ck wit h in t er b edded la yer s o f nodular lim es t on e, cha lky lim es t o n e, an d b en t on it e. The up er p ar t o f t he fo r m at ion ( P feifer Mem b er ) is in t er b edded t hin cha lky lim es t on es and cha lky m udr o cks con t a in in g b en t on it e s eam s and is ca p ed by t he F en ce- po s t lim es t o n e b ed, a 0 . 7 ft ( 0 . 2 m) t hick lim es t on e t ha t wea t her s light t an wit h a r us t - co lo r ed lin e in t he m iddle. The F en ce- po s t b ed ha s b een quar r ied ext en s ively in L in co ln Coun t y. The Gr eenho r n is 65 t o 9 0 ft ( 20 t o 27 m) t hick in L in co ln Coun t y ( Ber r y, 1952 ) and fo r ms t he p r omin en t es ca r pmen t s o f t he up land ar ea s in t he no r t her n , s out hwes t , and s out h- cen t r al p ar t s o f t he coun t y. Gr ane r o s Sha l e TheGr an er o s Sha le is a gr a yt o da r kgr a y, non ca lca r eous , fis s ile s ha le t ha t wea t her s t o light gr ay and yelow- br own . Sm al fla kes o f t he light gr ay fis s ile s ha le ar e cha r a ct er is t ic o f t he wea t her ed out cr o p . I n t er b edded la yer s o f fo s s ilifer o us ( p r edomin at ely Inoceramus s p . and Ostrea s p . ) s ands t on e and lim es t o n e ( up t o 2 ft [0 . 6 m] t hick) o ccur in t he m iddle t o lower p ar t o f t he fo r m at ion in L in co ln Coun t y, and t hin ( 0 . 3 ft [0 . 1 m ]) b eds o f lim es t on e o ft en o ccur n ea r t he t op . A 1 ft ( 0 . 3 m) b en t on it e b ed m ay be p r es en t n ea r t he t op . D is s em in at ed gyp s umand s elen it e cr ys t a ls a ls o o ccur in t he Gr an er o s . I n L in co ln Coun t y, t he t hickn es s o f t he Gr an er o s Shale r anges fr om 20 t o 45 ft ( 6 t o 14 m) . The Gr an er o s Shale fo r ms low hils above t he Dako t a Fo r m at ion a djacen t t o t he va leys and gen t le s lop es b et ween t he Dako t a and t he Gr eenho r n L im es t o n e in t he up lands . Lands lides cha r a ct er ize t he Gr an er o s ho r izon . Cr e ta c e ous Sy ste m Lo we r Cr e ta c e ous S e r i e s Da kota For ma ti on The Dako t a Fo r m at ion is compo s edo f t wo m em ber s : t he lower Ter r a Co t t a C lay Mem b er and t he up er J an s s en C lay Mem b er . The Dako t a is compo s ed o f va r ico lo r ed cla y, cla ys t on e, and s ha le wit h ir r egula r an d s omet im es m as s ive len s es o f s ilt s t on e an d s ands t on e. The m udr o cks ar e r ed- mo t t led p a le- gr a y, t an t o br own cla y and s ilt . The in t er b edded s ands t on e len s es ar e fin e t o m edium gr a in ed, ver y light gr ay t o o r ange- t an t o da r k r ed- br own , and common ly po r ly cem en t ed. Con cr et io n s an d t hick la yer s o f ha r d, gr a y, ca lcit e- cem en t ed s an ds t on e ( lo ca ly r efer r ed t o as L in co ln quar t z it e ) ar e found in L in co ln Coun t y in s m al, is o la t ed ar ea s , b ut ext en s ive depo s it s n ea r L in co ln , Kan s as ar e m in ed fo r a ggr ega t e. The Dako t a o ft en co n t a in s lign it e and ca r bon aceous fr a gm en t s , an d s m al con cr et ion s and t hin b eds o f limon it e, s ider it e, an d hem a t it e o ccur as s ca t t er ed fr a gm en t s on er oded m udr o ck s ur fa ces . The Dako t a Fo r m at io n r anges fr o m ab out 140 ft ( 4 3 m) t hick in ea s t er n L in co ln Coun t y t o ab out 20 ft ( 6 1 m) in t he wes t er n p ar t ( Ber r y, 1952 ) and is an impo r t an t s our ce o f wa t er in L in co ln Coun t y and els ewher e in Kan s as . I n L in co ln Co un t y, t he Dako t a is expo s ed in m uch o f cen t r al and s o ut hea s t er n p ar t s o f t he coun t y in ar ea s a dja cen t t o t he S a lin e R iver and it s t r ib ut ar ies . REFERENCES Ar bogas t , A . F . , and J ohn s on , W. C . , 19 6 , Sur ficia l Geo logy and S t r at igr ap hy o f Rus s el Co un t y, Kan s as : Kan s as Geo logica l Sur vey, Techn ica l S er ies 7 , 45 p . Bayn e, C . K . , F r anks , P . C . , and I ves , W. , J r . , 1 971 , Geo logy and gr ound- wa t er r es our ces o f E ls wo r t h Coun t y, cen t r al Kan s as : Kan s as Geo lo gica l Sur vey, Bulet in 201 , 84 p . Ber r y, D . W. , 1952 , Geo logy and gr ound- wa t er r es our ces o f L in co ln Co un t y, Kan s as : S t at e Geo lo gica l Sur vey o f Kan s as , Bulet in 9 5 , 9 6 p .

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QUADRAN GLE LOCATION

KAN SAS

APPROXIMATE MEANDECLINATION, 2016

&

4° 19'

TRUE

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PRELIMINARY SURFICIAL GEOLOGY OF THE LINCOLNQUADRANGLE, LINCOLN COUNTY, KANSAS

Geology by Robert S. Sa win

Com puter com pila tion and cartography b y John W . Dunha m and Sara h F. Child2016

EXPLANATIONHydrology a n d To p ogra p hy

Perennia l strea mInterm ittent strea mW a ter body

Eleva tion contour (20-foot interva l)

Eleva tion contour (100-foot interva l)1500

Reso urce Develo p men tOpen gra vel pitMQuarryÇ

Tra n sp orta tio n

Loca l roa d

Airport runwa yRa ilroa d

Sta te highwa yAF18

Bo un da ries a n d Loca tio n sTownship/range lineSection line

Geologic Fea turesCa lcite-cem entedconcretions

Geologic Un it Boun da riesObserved conta ctConcea led conta ct

Fun ded in p a rt by theUSGS Na tio n a l Co o p era tive Geologic Ma p p in g Progra m

Op en -File Rep ort 2016-6

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KANSAS & OKLAHOMA RAILROAD

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Lost

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Spillman Creek

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SALINE

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Bullfoot

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39°00'38°00'98°07'30"

97°07'30"39°07'30"

98°15'39°07'30"

98°15'

Eleva tion contours are presented for genera l reference. Used in the U.S. Geologica l Survey’s current US Topo 1:24,000-sca le topographic m ap series, they were genera ted from hydrographica lly-im proved 1/3 arc-second N a tiona l Eleva tion Dataset (N ED) da ta, and sm oothed during processing for use a t 1:24,000 sca le. In som e pla ces the contours m a y b e m ore genera lized than the b ase da ta used for com pila tion of geologic outcrop patterns. Outcrop patterns on the m ap will typica lly reflect topographic varia tion m ore a ccura tely than the associa ted contour lines. Repea ted fluctua tion of an outcrop line a cross a contour line should b e interpreted as an indica tion tha t the m apped rock unit is m a inta ining a rela tively constant eleva tion a long a genera lized contour. 1-m LiDAR hillsha des and 1-m 2010 and 2012 U.S. Departm ent of Agriculture – Farm Services Agency (USDA-FSA) N a tiona l Agriculture Im a gery Progra m (N AIP) digita l im a gery were used as references in the digita l m apping. USGS 7.5-m in 1:24,000-sca le topographic m aps, USDA N a tura l Resources Conserva tion Service (N RCS) soil surveys, and other geologic m aps and b ulletins were used to supplem ent the m apping. Roa ds and highwa ys are shown on the b ase m ap as represented b y da ta from the Kansas Departm ent of Transporta tion (KDOT), U.S. Census Burea u, and other sources. U.S. Departm ent of Agriculture – Farm Services Agency (USDA-FSA) N a tiona l Agriculture Im a gery Progra m (N AIP) im a gery a lso was used to check roa d loca tions. Sha ded relief is b ased on 1-m eter hydrofla ttened b are-earth DEMs from the Sta te of Kansas LiDAR Data b ase. The DEM im a ges, in ERDAS IMAGIN E form a t, were m osa icked into a single output DEM, downsa m pled to 2-m eter resolution, and reprojected to decim a l degrees. The output DEM was then converted to a hillsha de, a m ultidirectiona l sha ded-relief im a ge using angles of illum ina tion from 0°, 225°, 270°, and 315° azim uths, ea ch 45° a b ove the horizon, with a 4x vertica l exa ggera tion. This geologic m ap was funded in part b y the USGS N a tiona l Coopera tive Geologic Mapping Progra m , a ward num b er G15AC002258 (FY2015). This m ap was produced using the ArcGIS system developed b y Esri (Environm enta l System s Research Institute, Inc.). This m ap is a prelim inary product and has ha d less scientific and cartographic review than the Kansas Geologica l Survey’s M-series geologic m aps. KGS does not guarantee this m ap to b e free from errors or ina ccura cies and discla im s any responsib ility or lia b ility for interpreta tions m a de from the m ap or decisions b ased thereon. SUGGESTED REFERENCE TO THE MAP Sa win, R. S., 2016, Prelim inary surficia l geology of the Lincoln qua drangle, Lincoln County, Kansas: Kansas Geologica l Survey, Open-File Report 2016-6, sca le 1:24,000, unpub lished.

1000 0 1000 2000500 METERS1 0 1 20.5 KILOMETERS

1 0 10.5MILES

1000 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000500FEET

UN IV ERSAL TRAN SV ERSE MERCATOR PROJECTION , ZON E 14N ORTH AMERICAN DATUM OF 1983

SCALE 1:24 000 6 87 9

32 41 5

11 13 1412 15

10

2016 1917 18LINCOLN COUNTY QUADRANGLES

1 Hunter 2 Ash Grove 3 Lincoln NW 4 Barnard 5 Ada 6 Sylvan Grove 7 Vesper 8 Lincoln 9 Shady Bend 10 Tescott

11 Wilson NW 12 Wilson NE 13 Westfall NW 14 Westfall 15 Juniata 16 Wilson 17 Black Wolf 18 Westfall SW 19 Westfall SE 20 Brookville SW

Qal

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These descriptions are a compilation of several sources, including field notes and measured sections, Kansas Department of Transportation geological reports and profiles, and lithologic descriptions in Berry (1952), Bayne et al. (1971), and Arbogast and Johnson (1996).

GEOLOGIC UNITS CENOZOIC

Qua tern a ry System Pleistocen e-Holocen e

Alluvium a n d terra ce valley fill— Alluvium and terra ce va lley fill are found a long the Sa line River and its trib utaries. Floodpla in deposits conta in m ostly silt and cla y with som e sand. The thickness of the a lluvium ranges up to 60 ft (18 m ) in the Sa line River va lley and 20 ft (6 m ) in other m a jor trib utaries in the county (Berry, 1952).

MESOZOIC Creta ceo us System – Up p er Creta ceo us Series

Ca rlile Sha le—The Carlile Sha le conta ins three m em b ers. In ascending order, they are the Fa irport Cha lk Mem b er, the Blue Hill Sha le Mem b er, and the Codell Sandstone Mem b er. Only the lower part of the Fa irport Cha lk Mem b er is present in Lincoln County, where it is up to 20 ft (6 m ) thick and very sim ilar to the upper b eds of the Greenhorn Lim estone (Berry, 1952). It consists of a lternating b eds of thin, concretionary lim estone and cha lky m udrocks, as well as thin b entonite la yers. The Carlile Sha le caps the high hills in the northern and southwestern parts of the county. Green horn Limesto n e— The Greenhorn Lim estone conta ins the following four m em b ers, in ascending order: the Lincoln Lim estone Mem b er, the Hartland Sha le Mem b er, the Jetm ore Cha lk Mem b er, and the Pfeifer Sha le Mem b er. Ea ch m em b er is 15 to 20 ft (5 to 6 m ) thick. The conta cts b etween the m em b ers are gra da tiona l and not easily recognized in the field. In genera l, the Greenhorn is light gra y to yellowish-gra y cha lky lim estone, cha lky m udrock, and cha lk. Severa l lim estone b eds conta in the fossil cla m Inoceramus sp. tha t is chara cteristic of the form a tion. The lower part of the Greenhorn (Lincoln Mem b er) is interb edded la yers of cha lky m udrock, cha lky lim estones, and dark gra y crysta lline lim estone near the b ase tha t has a strong petroliferous odor when freshly broken. The m iddle part (Hartland and Jetm ore Mem b ers) is cha lky m udrock with interb edded la yers of nodular lim estone, cha lky lim estone, and b entonite. The upper part of the form a tion (Pfeifer Mem b er) is interb edded thin cha lky lim estones and cha lky m udrocks conta ining b entonite sea m s and is capped b y the Fence-post lim estone b ed, a 0.7 ft (0.2 m ) thick lim estone tha t wea thers light tan with a rust-colored line in the m iddle. The Fence-post b ed has b een quarried extensively in Lincoln County. The Greenhorn is 65 to 90 ft (20 to 27 m ) thick in Lincoln County (Berry, 1952) and form s the prom inent escarpm ents of the upland areas in the northern, southwest, and south-centra l parts of the county. Gra n ero s Sha le— The Graneros Sha le is a gra y to dark gra y, nonca lcareous, fissile sha le tha t wea thers to light gra y and yellow-brown. Sm a ll fla kes of the light gra y fissile sha le are chara cteristic of the wea thered outcrop. Interb edded la yers of fossiliferous (predom ina tely Inoceramus sp. and Ostrea sp.) sandstone and lim estone (up to 2 ft [0.6 m ] thick) occur in the m iddle to lower part of the form a tion in Lincoln County, and thin (0.3 ft [0.1 m ]) b eds of lim estone often occur near the top. A 1 ft (0.3 m ) b entonite b ed m a y b e present near the top. Dissem ina ted gypsum and selenite crysta ls a lso occur in the Graneros. In Lincoln County, the thickness of the Graneros Sha le ranges from 20 to 45 ft (6 to 14 m ). The Graneros Sha le form s low hills a b ove the Da kota Form a tion a dja cent to the va lleys and gentle slopes b etween the Da kota and the Greenhorn Lim estone in the uplands. Landslides chara cterize the Graneros horizon.

Creta ceo us System – Lower Creta ceo us Series Da ko ta Forma tio n — The Da kota Form a tion is com posed of two m em b ers: the lower Terra Cotta Cla y Mem b er and the upper Janssen Cla y Mem b er. The Da kota is com posed of varicolored cla y, cla ystone, and sha le with irregular and som etim es m assive lenses of siltstone and sandstone. The m udrocks are red-m ottled pa le-gra y, tan to brown cla y and silt. The interb edded sandstone lenses are fine to m edium gra ined, very light gra y to orange-tan to dark red-brown, and com m only poorly cem ented. Concretions and thick la yers of hard, gra y, ca lcite-cem ented sandstone (loca lly referred to as “Lincoln quartzite”) are found in Lincoln County in sm a ll, isola ted areas, b ut extensive deposits near Lincoln, Kansas are m ined for a ggrega te. The Da kota often conta ins lignite and carbona ceous fra gm ents, and sm a ll concretions and thin b eds of lim onite, siderite, and hem a tite occur as sca ttered fra gm ents on eroded m udrock surfa ces. The Da kota Form a tion ranges from a b out 140 ft (43 m ) thick in eastern Lincoln County to a b out 200 ft (61 m ) in the western part (Berry, 1952) and is an im portant source of water in Lincoln County and elsewhere in Kansas. In Lincoln County, the Da kota is exposed in m uch of centra l and southeastern parts of the county in areas a dja cent to the Sa line River and its trib utaries.

REFERENCES Arbogast, A. F., and Johnson, W . C., 1996, Surficia l Geology and Stratigraphy of Russell County, Kansas: Kansas Geologica l Survey, Technica l Series 7, 45 p.

Ba yne, C. K., Franks, P. C., and Ives, W ., Jr., 1971, Geology and ground-wa ter resources of Ellsworth County, centra l Kansas: Kansas Geologica l Survey, Bulletin 201, 84 p.

Berry, D. W ., 1952, Geology and ground-wa ter resources of Lincoln County, Kansas: State Geologica l Survey of Kansas, Bulletin 95, 96 p.