Ancient Landscapes of the Grand Canyon Region

Ancient Landscapes of the Grand Canyon Region - The Geology of Grand Canyon, Zion, Bryce, Petrified Forest & Painted Desert

Probably no place in the world of similar area has recorded a more complete or a more interesting resume of the earths history than has the high plateau country of northern Arizona and southern Utah. Although many great events and some long intervals of time are not represented by the formations of this region, yet of the five major chapters or eras into which all of time has been divided by geologists, at least some parts of each have left their traces in this area. Whether on the brink of the mighty Grand Canyon, among beautiful logs of the Petrified Forest, or beneath the lofty walls of Zionthe Rainbow of the Desertone looks upon rocks which are not alone curious or colorful, but which are also records of the past inscribed and illustrated in an intensely interesting manner. In one place is seen the sand of ancient dunes, in another the border of an early sea, or perhaps the floodplain of mighty rivers, and in all of these remain the unmistakable evidences of lifeplants and animals preserved to make a reality of the living, moving past. Everywhere are found the evidences of those great processes of natureerosion of the high country, land formation in the low country, and mighty crustal movements slowly raising or lowering the land in both. From the rim of Grand Canyon one not only looks down through tremendous space, but also through time, glimpsing the record of vast ages, measurable not in centuries but in millions and even hundreds of millions of years. There in the bottom of that mighty chasm are found rocks formed during the first and oldest erarocks in which the original structure has been entirely modified by great heat and pressure and in which no evidence of life has been found. There in the Grand Canyon are also seen two other great series of rocks, those of the second era which are partially altered and which contain earliest traces of plants, and those of the succeeding era in which are preserved primitive animals of many types. ......Buy Now (To Read More)

Product details

Ebook Number: 48126
Author: McKee, Edwin D. (Edwin Dinwiddie)
Release Date: Jan 31, 2015
Format: eBook
Language: English