482 GEOLOGY AND GOLD DEPOSITS OF THE CRIPPLE CREEK DISTRICT. 
The lodes in granite, constituting the southwest zone, may be regarded as rela¬ 
tively narrow lateral and downward extensions of the main ore bodies along the 
northwest-southeast fissure zones. These lodes are best developed on level 7, where 
at least three well-marked fissure zones, striking N. 38° W., contain ore to a maxi¬ 
mum distance of about 150 feet northwest from the axis of the main ore body. 
They are rather irregular sheeted zones, usually exhibiting two principal parallel 
fissures 3 or 4 feet apart connected by numerous irregular fractures. The general 
dip is about 70° SW. The ore is usually about 4 feet wide and similar in 
character to much of that found in the large, irregular ore bodies just described. 
The lodes do not have definite walls, the ore passing more or less gradually into the 
granitic country rock. At their northwest ends the pay shoots grade into slightly 
mineralized granite containing little veinlets of pyrite. The Assuring in this direc¬ 
tion becomes less regular and pronounced, and it is doubtful whether at a distance 
of 250 feet from the northeast-southwest phonolite dikes any of the lodes are suffi¬ 
ciently distinct to be recognized in crosscutting. On the southeast side of the large 
ore body these lodes are usually recognizable as rather irregular fissure zones, con¬ 
taining little stringers of pyrite. The} 7 are unimportant on this side of the main ore 
mass and do not contain ore for distances of more than a few feet from the latter. 
Thus practically all the ore in these lodes lies between two divergent vertical 
planes passing through the Ajax shaft, one of these planes striking southwest and 
the other west-southwest. 
On levels 9 and 10, below the bottom of the large southwest ore body, some of 
these lodes have been drifted on, and two of them, probably the two easterly lodes 
known on level 7 as the B and C veins, have proved productive. Their value on 
level 11 is yet to be determined. 
Those productive lodes of the Ajax that occur in breccia have no obvious rela¬ 
tion to the granite-breccia contact, and none of the important breccia ore bodies are 
found in its immediate proximity. No ore is encountered in the Apex lode until a 
point is reached about 450 feet north of the Ajax shaft. Here an ore shoot begins 
which continues northwestward to the Triumph shaft. The maximum length of 
this pay shoot is 500 feet. Its vertical range is about the same, the ore ending just 
above level 4, though the Apex phonolite dike, accompanied by some Assuring, is 
known on lower levels. 
The Apex vein is a sheeted zone in breccia, with an average width of 2 or 3 feet. 
Locally, however, as near an intermediate level about 125 feet below level 1, the ore 
has been stoped to a width of 56 feet. It strikes N. 30° W. and dips 72° SW. The 
Apex phonolite dike, here about 5 feet wide, usually forms the hanging wall of the 
lode, though in places breccia intervenes between the ore.and the dike. In its wider 
parts the lode consists of a number of fissures with considerable barren country rock 
between them. The dominant fissures have the general strike and dip of the lode, 
but others are much less regular. Some, particularly where the ore is widest, 
branch off to the northeast from the main fissures and as they pass into the foot wall 
dip at decreasing angles until they are nearl} 7 horizontal. 
Although the breccia in the vicinity of the lode is generally impregnated with 
pyrite, the ore value is nearly all if not completely in the small fissures, many of 
