Encyclopaedia Britannica, 11th Edition, "Luray Cavern" to "Mackinac Island"

Encyclopaedia Britannica, 11th Edition, "Luray Cavern" to "Mackinac Island" - Volume 17, Slice 2

LURAY CAVERN, a large cave in Page county, Virginia, U.S.A., 39 35 N. and 78 17 W., near the village of Luray, on the Norfork & Western railway. The valley, here 10 m. wide, extends from the Blue Ridge to the Massanutton Mountain. The ridges lie in vast folds and wrinkles; and elevations in the valley are often found to be pierced by erosion. Cave Hill, 300 ft. above the water-level, had long been an object of local interest on account of its pits and oval hollows or sink-holes, through one of which, on the 13th of August 1878, Andrew J. Campbell and others entered, thus discovering the cavern now described. The Luray cavern does not date beyond the Tertiary period, though carved from the Silurian limestone. At some period, long subsequent to its original excavation, and after many large stalactites had grown, it was completely filled with glacial mud charged with acid, whereby the dripstone was eroded into singularly grotesque shapes. After the mud had been mostly removed by flowing water, these eroded forms remained amid the new growths. To this contrast may be ascribed some of the most striking scenes in the cave. The many and extraordinary monuments of aqueous energy include massive columns wrenched from their place in the ceiling and prostrate on the floor; the Hollow Column, 40 ft. high and 30 ft. in diameter, standing erect, but pierced by a tubular passage from top to bottom; the Leaning Column nearly as large, undermined and tilting like the campanile of Pisa; the Organ, a cluster of stalactites in the chamber known as the Cathedral; besides a vast bed of disintegrated carbonates left by the whirling flood in its retreat through the great space called the Elfin Ramble. ......Buy Now (To Read More)

Product details

Ebook Number: 43254
Author: Various
Release Date: Jul 20, 2013
Format: eBook
Language: English