354 



SUPPOSED FOLDS. 



upon the edge of a cliff of hyaline quartz and look down into the chasm one hundred feet deep the 

 waters are dashing at a furious rate. Presently the current'takes a course at right angles with its general 

 direction and follows the line of strike of the rock until it reaches the circular basin at the bottom of the 

 fall. You gaze down around you on the wild war of the gallant stream your head is a little unsteady 

 your nerves twinge but soon you admire and become enthusiastic you cry bravo ! to the little brook, in 

 its encounter, as it struggles and dashes down, to seek repose, with unconquered spirit, to the smooth lake 

 below. Now you have seen the Falls of Lana. You return, but determine to visit them again." 



The same gentleman has given us his views respecting the connection of beds of limestone with the 

 quartz rock in G-oshen and Brandon conjecturing that they indicate several folds in the formation. The 

 subject deserves a careful examination. 



FIG. 252. 



Section from Forestdale to Green Mountains. 



"In going from Brandon to Kochester I went over the quartz on the road a little above Blake's Furnace 

 at Forestdale, to the bed of limestone a in Fig. 252, on the east side of the quartz. This I found to be 

 about twenty-five feet thick; and from it, by pacing, I found the thickness of the quartz rock east between 

 a and b, not less than 900 feet thick. About half a mile further is the house of a Mr. Churchill, at the 

 confluence of a stream from Leicester with Mill River in Brandon. As this valley corresponded with the 

 position of the limestone east of the quartz at Blake's Furnace, I inquired of Mr. Churchill if there was 

 any lirnerock up that brook. He assured me it was abundant, and that hundreds of tons of iron ore had 

 formerly been dug in it the ore occurring in "pots or pockets" and was different from the hematite on the 

 west side of the quartz at Conant's bed. Mr. Churchill also said that in another valley running through 

 Goshen, near Frank Brown's house, limestone, c, accompanied by iron ore, abounded; and that it extended 

 south into Chittendon, connecting with Mitchell's ore bed in Chittenden. Not only so, but there was 

 marble, d, further east still, on the Green Mountains, doubtless connecting with the marble in the north- 

 east part of Mendon. 



"Now you remember that we found the limestone of the west side of the quartz, folding around the north 

 end of Hog Back Mountain and re-appearing at the east side in Starksboro. You remember too, we con- 

 jectured* the limestone might occur in the valley between Starksboro and Bristol, east of the quartz. We 

 know that it occurs at Blake's east of the quartz, and up the Leicester Brook. Then why did it not once, 

 if not now, occur all along in the east part of the quartz rock, as it is known to do on the west ? And why 

 may not the Frank Brown range of limestone in G-oshen, and the Mitchell ore bed range in Chittenden, be 

 of the same bed in another fold, or one interstratified in the same series ? And if we call the quartz rock 

 Potsdam sandstone, and the sandstones and limestones on the west calciferous sandrock, why not call the 

 sandstones and limestones on the east calciferous sandrock also ? If we may suppose the quartz rock of 

 the Potsdam has been changed to hyaline quartz, why may we not suppose that the quartz rock of the 

 calciferous sandrock has also become hyaline ? And if we may make the hyaline quartz on the west, an 

 indication of the limit of the calciferous sandrock, as it occurs at the Bristol ore bed, Monkton ore bed and 

 ' putty bed,' and still further west in Monkton, why may we not make it the same on the east, as the 

 hyaline quartz appears at Ripton Hollow, some two miles east of the quartz rock at East Middlebury ? 



" Now if these things are so, and if we may suppose a fault to exist between the Potsdam sandstone and 

 the Hudson River Group on the east, must we not look for the supposed fault further east than the quart/, 



* Tliis has subsequently been proved to be a fact. 0. II. H. 



