3'68 GEOLOGY AND GOLD DEPOSITS OF THE CRIPPLE CREEK DISTRICT. 
Cripple Creek and Gold Temple Company. The elevation of the collar of this 
shaft is about 10,150 feet and the depth 645 feet. Seven levels have been turned, 
the seventh and deepest being 550 feet below the collar. The total extent of drifts 
and crosscuts is over 2,000 feet. 
The country rock along the Lovett vein is latite-phonolite. Breccia occurs only 
on the southwest side of the vein, in the stope north of the shaft on the third level. 
A basic dike with a north-northwest strike follows the trend of the vein for the entire 
distance developed—about 600 feet; it also appears to the north in the Maggie pros¬ 
pect and to the south in the Trilby mine. It is not well shown on the surface. The 
width is rarely over 4 feet. In places it splits into two parallel dikes. While 
ordinarily much decomposed, fresh rock is obtainable in places. The dark, fine¬ 
grained rock contains large foils of biotite and the microscope shows it to be a mon- 
chiquite. A narrow phonolite dike also follows the trend of the vein and lies 
generally on the east side of the basic dikes. 
The so-called Lovett vein is rather an ill-defined, almost vertical zone of fracture 
up to 50 feet wide than a single clear-cut vein. The trend is N. 40° W. It is crossed 
by the Fox vein, trending N. 60° E. and dipping steeply to the southeast! The Fox 
vein first appears 300 feet west of the Lovett, where it is exposed by a short tunnel, and 
is next cut by several drifts from the Jackson shaft, but has not been found on the 
lowest or seventh level. It continues for several hundred feet toward the northeast 
and is also exposed in the Whisper block. In character it is a narrow sheeted zone, 
1 or 2 feet wide, carrying fluorite and quartz along its central fissure. Besides these 
two principal veins there are a number of flat seams, generally dipping southwest and 
exercising a decided influence on the ore bodies. 
The ore occurs chiefly where flat seams intersect the Lovett vein or near the 
intersection of the Lovett and the Fox veins. It does not occur in the basic dike nor 
in the phonolite dike, but may be found on either side of them. Most of it is entirely 
oxidized, but on the lowest level calaverite is contained in the narrow seams. 
Ore was found along the apex of the Lovett vein from the croppings of the Fox 
vein southward to the Lovett shaft, a distance of 200 feet. On the third or 250-foot 
level, 100 feet northwest of the shaft, there was a large ore body having dimensions of 
100 by 100 by 20 feet. The stope was opened on a flat vein at the intersection with 
the Lovett vein, chiefly on the northeast side of the latter. There are two basalt 
dikes here 10 feet apart, but no ore occurs in them. Little else of value is found on 
this level. On level 4, 300 feet below the collar, the drift follows the basic dike south 
to the Fox vein, which seems to be locally interrupted by the dike; there is no proof, 
however, that the dike is really later than the vein. A good shoot 20 feet long has 
been stoped on the Fox vein up to the surface; it lies between the basic dike and the 
parallel phonolite dike. Two hundred feet south of the Jackson shaft the basalt dike 
crosses over to the west side of the Lovett vein. At this place is a stope in latite- 
phonolite about 35 feet long on the level and 2b feet wide with particularly rich 
streaks, changing in position from one wall to another. This stope extends nearly 
to the surface. 
The continuation of the same stope has been opened from level 7, 550 feet below 
the surface. Here the phonolite dike, 12 feet wide, lies on the east side of the basic 
dike. Very rich ore was found in 1904 in latite-phonolite between these dikes; the ore 
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