The Mn<]netite Belt, at Cranberry, JST. C . — Kimball. 307 
On the Hardigraves or Ellis tract in l"\v ground near, if not 
within the F. P. Perkins line, a shallow excavation made 
several years ago. reveals terminal parts of two overlapping 
lenses with a dip of 01113^ 10" SW. This position is on the 
projection of a right line from the northwest ore bank (^f the 
Cranberry Co., passing directly over the outcrop of the Cran- 
berry ore belt, that is — just to the south of the quarry. The 
encasing schists are characteristic of the belt as typified at 
Cranberry. The strike and persistence of the belt are thus 
imperfectly indicated. The upper part of it however has here 
been eroded, and the thickness of the part preserved remains 
to be ascertained by^ excavation. Further in the same direc- 
tion the ore belt disappears by erosion, or recedes to the south 
at a gentle dip in the low ground where the outcrop is con- 
cealed. 
A second ore-belt characterized b}'^ a remarkable develop- 
ment of pyroxene, both crystalline and schistose, outcrops in 
almost vertical attitude on the summit of a high divide on the 
F. P. Perkins tract, on a line of strike parallel to that of the 
Cranberry belt, about 1700 ft. to the eastward. A thickness 
of 3 to 4 ft. of magnetic gossan, or decayed epidotic magne- 
tite, blended with ferric hj'^drate, has here been opened at the 
summit of a sharp hill to a depth of 30 ft. This is overlain 
by contorted hornblendic gneiss and underlain by pure sub- 
crystalline p5'-roxene over 20 ft. in thickness. The dip to the 
southeast passes out of the perpendicular from near the sur- 
face to 70^* at the bottom of the pit. The gneiss has been 
penetrated from a tunnel driven at the base of the hill toward 
the hanging wall. The relation of the encasing schists is ac- 
cordingly the reverse of the succession at Cranberry. Litho- 
logic analogy however points to an identity of horizon, and 
the stratigraphic relations of the two belts to those of an 
overthru&t anticlinal fold. 
The Roan mountain ore belt can be studied to but little ad- 
vantage at present for lack of exposure or industrial develop- 
ment. The high estimate of its importance published from 
time to time rests mainly on assumptions not altogether justi- 
fied by a number of feeble and unsystematic attempts to pro- 
duce a merchantable grade of ore. It embraces the Citlco 
mine near Shell Creek station, belonging to the Citico and 
