PROSSER. The Upper Permian. 61 
Soil. 
S 
Yellow. z, 
Shale, alternating 2 
with Gypsum. 
ee ea Shales. Zz 
SSS SE re 
) =e = 
Ph == 
2) ss Blue. ca 
— =a a S 
p (ae 
Fibrous Gypsum. Sa = 
“ Limestone, with 
= small shells. 
Gypsum. 
| é 
Shale and Gypsum. Buff to Blue Shale. a 
<< 
= 
Gypsum. 
Gypsum Creek. Smoky Hill River. 
Hig. 2. } JIG), Bo 
Merrill Quarry Section, five miles Kast of Section of Bacott Quarry, South of Salina. 
Plate XI gives a clear idea of the exposure of rocks at the above 
quarry. Mr. Geede’s foot rests on top of the massive stratum of 
gypsum—No. 3 of the section—only part of which is shown in the 
picture. Above this are the 14 feet of alternating layers of shales 
and gypsum—No. 5—capped by the soil. The rock dips slightly to 
the north and east while several small rolls are shown along the side 
of the bluff. Doctor Grimsley in describing the gypsum deposits of 
Kansas has correctly referred the gypsum of central Kansas to the 
Marion formation!. 
Three miles west of Gypsum creek and seven miles east of Salina, 
on the southwest quarter of section 7, Solomon township, is a small 
excavation known as Benfield quarry. The locality is 100 feet 
above the Gypsum creek level, though probably not stratigraphic- 
ally as much as that above the gypsum, on account of the easterly 
dip. In the bottom of the quarry is a stratum of massive limestone, 
hard and quite durable, containing fragments of a few shells, prob- 
ably Nuculas. Above this are about 10 feet of thin, buff to yel- 
lowish shales, mostly soft, though some of the layers are hard and 
1G. P. Grimsley, American Geologist, Vol. XVIII, October 1896, p. 287. 
