U. S. GEOLOGICAL SURVEY 
BULLETIN 845 SHEET 10 
ies 
Bee oa = : Pexy: 
— = oa 
Go form:— om 
Se oe 
—— 
— 
—— 
J Iidio for 
— 
7 
1s 
2S" 
ae a ee ee 
SS eS == Escongid 
yaaa 
le Ford y= ACS cache 
* (SAYRE) 
oo 
= =I 
alk, 
oe Es ae 
= 
I — = 
acho ls. 
ag! 
ar 
acae 
577 Sapper 9 
stin Ch 
— — : 
: EScondido form. 
I~AG 
5 Miles 
. ay 
is ok. 
pare 0s 
DIAGRAMMATIC SECTION AGROSS MEDINA COUNTY NEAR LONGITUDE 99 
_e«Midway formation 
Quaternary gravels and sands not shown 
A ae a ey 
a 
Lf SSsaecee 
I 
om eas SR ae Hg 
TAnacacho 
A 
= Escondido form. 
Washita group 
San gy sa es pa Saas 
= Edwards 
a 
Midway formation 
_¢ Washita group 
Texas 
9 
0 
> _— 
—— 
Y) 
or 
1 
500,000 
(approximately) 
lo 15 
The distances from New Orleans. 
20 KILOMETERS 
terval 100 feet 
a., are shown every 
10 miles, and the crossties are drawn 1 mile apart 
The quadrangle shown on the map wit 
in the lower left corner is m 
topographic map of that nam 
a name in parentheses 
‘pped in detail on the U. 8. G. 8. 
e€ 
ae ae 
20 MILES 
sg ee & 
Sheet 9 
Gravel and sand (alluvium and terrace deposits) 
Sandstone 
Bandas } q Tertiary 
cae , 2 (Eocene) 
Limestone and shale 3 
;° Shale and sandstone into Navarro to east) 
¥ Limestone; some marl and clay into Taylor to east) | Upper Cretaceous be 
(Gulf series) fan] 
Chalk 
Limestone, slabby 
I Limestone, compact 
de . Washita group Lower Cretaceous 
Limestone . (Comanche series) 
Limestone, massive } Fredericksburg group 
Igneous rocks, intruded in various Post-Cretaceous 
: - ’ Geology: West ide 99° 30° from Uvalde 
~~ Fault folio by T. W. Vaughan; Medina regen data by 
; Consiaied thiah L. W. Stephenson, R. A. Liddell, A. N. Sayre, 
ene R. L. Cannon, Julia Gardner, and N. H. ‘on 
WILLIAMS @ HEINTZ CO. WASH. DC 
