CLARKE.] 
CARBONATE ROCKS. 
275 
UTAH. 
A. Marble from the Ontario mine, east end of the 1,000 -foot level. 
Analysis made by L. G. Eakins, in the Denver laboratory. 
B. Oolitic sand from shore of Great Salt Lake. Analysis b}^ T. M. 
Chatard, record No. 156. 
A. 
B. 
Insoluble in HC1 
9.61 
trace 
4.03 
j .20 
51. 33 
.72 
.63 
41.07 
trace 
.89 
.83 
.27 
A1 2 3 
Fe 9 Oo 
CaO 
50. 63 
.09 
MgO 
Alkalies 
C0 2 
a 39. 89 
P„(X 
so 3 
H 2 0... 
Organic matter 
100. 22 
99.97 
a Calculated to satisfy 
