262 University of Kansas Geological Survey. 
No Feet. 
SS POP SAN GHaMawenanvel al (sci Ge ep Ne Dela anes ee ee pene Joogadvoobanbsoogaur 142 
GH VS TU V EHOW SAM a ei Ne SU SiN ROSEN ate ae ec Peo en OIOIESD, Ae UES RLU ee 5 Jess} 
10:9 Ets sand and Sraviely ici ohue Sees Be ie, olla ae Hella Ue ea av a a Rat 164 
Dele O aNite cr CLAN Van Ra Nn eeN wait tic aie IC (ool AU RS UO AE ALLL a a AOA Ba OO URE a 170 
1 itty, waler-bearine Sandyvandusnravielumrnmnr oe cite icc hiiicciee toners 192 
13.— 4 ft. yellow clay and fine sand to bottom of well 
It will be noted in this well that a large amount of gravel was 
met with at less than 75 feet from the surface below which was a 
sandy clay cemented with calcareous cement, then another layer of 
sand and gravel, then again sandy clay with calcareous cement, 
below these a 20 foot bed of sandy clay, then another stratum of 
coarse sand and gravel, below which was found yellow sand, again 
sand and gravel, and then a layer of clay which was almost en- 
tirely free of sand. Below all these we have 22 feet of water-bearing 
sand and gravel with a sandy clay in the bottom of the well. The 
well is located on the high uplands about 180 feet above the level 
of the river valley to the south. Along the bluffs on the north side 
of the river at this place and farther west the Benton formation is 
exposed to the surface. To the west the Benton is shown along the 
banks of different ravines entering from the north. The materials of 
the Tertiary where exposed along the bluff are frequently cemented 
by calcium carbonate into a relatively firm mass of rock called 
Tertiary grit, or mortar beds. But when the well itself is reached 
it is noticed that there was practically no calcareous cement found 
more than 110 feet from the surface, although the well went to a 
depth of 196 feet. We therefore have nothing in this well to imply 
that the coarse material lies at the bottom and the finer at the top. 
Well No. 2, located in the sandhills on the south side of the Ar- 
kansas river in Gray county, about three miles southwest of Cim- 
arron. Professor Hay, in his section along the 102d meridian, has 
represented the mortar beds as being very prominent all the way 
south from the Arkansas river to the south line of the state. This 
well is a short distance to the east of the line of his section, but is 
the only well the state has put down in the sandhills. In it we have: 
No. Meet. 
PSL Ete (SUPE! | SAMA oe ra Na il eyes senile etc gis enn e/g Pay os aN Mn emreeoT 1L7/ 
Peet of FOL 61: IN AR eA EIN ATA a testa Linea Yh cis et ig a Gia da pid alow 6 6.06.6 iy) 
