CARBONATE ROCKS. 
5. GLENWOOD SPRINGS, GARFIELD COUNTY. 
Limestones and dolomites collected under the direction of S. F. Emmons. 
partial only, by George Steiger, record No. 1559. 
205 
Analyses, 
CO, calculated to satisfy bases. 
A. B. C. D. E. F. G. 
MnSOD Os wecssrsisiscaceennumsay ncrinecciereaces 21.45 | 47.74 6. 47 3.71 9.44 | 17.82 1.96 
Beg gsc eniscianiveniinws cemiceamnananinwicn.cemaentcawe .97 -18 42) none -26 74 - 03 
BOO sd scscamusn wer: conten eatemeteaireheroetn eaehlonedl -23 salle 35 55 ~82 57 . 385 
CaO cee secceews eusce seer eseweneeeeeeceanes 40.64) 15.87] 46.65 | 47.40] 39.56] 26.50 32.14 
MeO) sco secsasertexeensseeetiecacenacerekenn -73 | 10.60 2. 64 4.49 8.56 | 14.86 18.72 
CO gees catmcntee geocihues sacar Dees ecmmeite 32.73 | 24.13 | 39.55 | 42.15 | 40.52 | 37.18 45. 85 
96.75 | 99.23 | 96.08 | 98.30] 98.66 | 97.67 99. 05 
H. I J K. L. M. 
.23 - 06 22 “il. 
og | mone -10 - 03 
i none .10 . 07 
55.49 | 55.81 | 55.45 55. 68 
-24 | trace 24 trace 
43.87 | 43.85 | 43.84 43.75 
99.92 | 99.72 | 99.95 99. 64 
6. TENMILE DISTRICT, SUMMIT COUNTY. 
Partial analyses, made in the Denver laboratory, by W. F. Hillebrand. CO, cal- 
culated to satisfy bases. Manganese and iron present as carbonates, but Fe,O, and 
Al,0; were not separated from them. 
A. A. V. Fletcher shaft, Copper Mountain. 
B. Pittston tunnel. 
C. Middle Carboniferous, Pearl Hill. 
D. Summit quarry. 
E. Dolomite, Sheep Mountain. 
F. Oolitic limestone, northwest corner of area. 
G. Pittston tunnel. 
A. B. C. D. E. F G. 
Li) (0) eee 2. 69 62 | 10.09} 1.75 78) 1.37) 7.91 
: : 1.19 32] 1.50 20 +32 
28.01) 53.60) 30.55] 55.17} 50.83 
18.33 | 1.23 | 20.15 2 .70 
42.63 | 43.65 | 47.04] 43.76 | 40.90 
100.25 | 100.55 | 100.02 | 100.78 | 100. 66 
H. Dolomite, Blackbird tunnel, Tucker Mountain. 
I. Summit King shaft, Summit City. 
J. Middle Carboniferous dolomite, Ptarmigan Hill. 
K. Hill north of Sugar Loaf. 
L. Quarry on southeast side of Searls Gulch. 
