go NEW YORK STATE MUSEUM 
dipping from 65° to 70° southeast. The strike of the ore body 
shifts toward the north as the workings are followed northeast- 
wardly, as though an obscure fold might be a part of the structural 
features. The wall rock is similar to that of the Bering mine, the 
footwall being Pochuck-Grenville carrying streaks of coarse biotite, 
which is likewise associated with the ore. 
The ore, judging from the sample taken along the cut, is a 
strongly jointed, massive, blocky and rather fine-grained magnetite. | 
Petrographic study of the ore reveals numerous feldspathic rem- 
nants, sericitized and corroded, and many remnants of pyroxene 
partly altered to tale and chlorite, and in places serpentinized. 
A little pyrrhotite is associated with the magnetite and related to 
it in origin. 
On the dump are numerous large angular fragments of camptonite 
which probably cut the ore at some point as a dike. No exposures 
could be found in the vicinity of the mine to show just what the 
relations may be. 
Both the Bering and the Morehead mines deserve additional 
investigation and careful exploratory work on these properties would 
be justified. 
(MEU, SCO GROWL? 
The Crossway (sometimes called Causeway), The Fletcher, 
Patterson, Mountain, Smith, Long, Scott, Cook and Augusta mines. » 
and two prospect pits called the Hard and Middle mines, comprise 
this group. These mines lie east of Sterling lake, about 2 miles north- 
east of the Lake and Sterling mines. The deposits lie along two 
bands or belts of ore, less than 700 feet apart, both striking north- 
eastwardly, but slightly converging, and more or less disturbed by 
transverse faults. The Fletcher, Crossway, Patterson, Mountain and 
Smith mines were opened on the westerly belt of ore, and the 
Augusta, Cook and Scott mines were opened on the easterly belt, 
which curves sharply to the northwest and apparently joins the 
westerly belt in a parabola-shaped curve; the structure is suggestive 
of an eroded anticlinal fold pitching northeast, whose limbs are 
disturbed in continuity by transverse faults which have likewise 
disturbed and offset the ore bodies which occupy either limbs of the 
fold. The fact that such structures are inherited and that the ore 
bodies have not been folded since they were deposited should again 
be emphasized (see fig. 9). A swamp north of the Mountain 
mine, and Jack of exposures here and in other critical places prevent 
accurate observations of the structure, which is obscure at best. 
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