CLARKE.] 
'CARBONATE ROCKS. 
UTAH. 
331 
A. Marble from the Ontario mine, east end of the 1,000-foot level. 
Analysis made by L. (f. Eakins, in the Denver laboratory. 
B. Oolitic sand from shore of Great Salt Lake. Analysis by T. M. 
Chatard, record No. 156. 
Insoluble in HC1 
A1A ----- 
FeA •--- 
CaO 
MgO 
Alkalies 
C0 2 
PA 
so,... 
9.61 
trace 
Organic matter 
50. 63 
.09 
a 39. 89 
100. 22 
c. 
4.03 
.20 
51.33 
.72 
.63 
41.07 
trace 
.89 
.83 
.27 
99. 97 
((Calculated to satisfy bases. 
